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Kolmo Construction
Data quality & transparency

We grade the public web on permit accuracy.

Most homeowner permit answers on the web are written once and never updated. Cities change rules; ranked sources don't follow. We scan the top-ranked Google results for 10 seed queries across our 10 verified Seattle-area cities (Seattle, Bellevue, Kirkland, Redmond, Sammamish, Issaquah, Renton, Kent, Federal Way, Mercer Island), compare each to our verified data, and surface what's out of date — with the exact quote, the source URL, and the date we last checked.

Last scan: 2026-09-12. Sources scanned to date: 200. AI-flagged for review: 47. Publicly confirmed stale: 0.

Sources scanned
200
AI-flagged for review
47
Publicly confirmed stale
0
Seed queries tracked
10

Methodology

For each tracked query (e.g., "Seattle deck permit"), we:

  1. Pull the top organic results — via Google's search API (Serper.dev). When the API is unavailable, we fall back to a manually curated list of the top sources currently ranking. The seed list is in server/features/permit/stale-source-detector/seed-sources.ts; anyone can audit it.
  2. Fetch each result and extract the page text. User-agent identifies as a normal browser; we respect robots.txt and rate-limit our requests to no faster than 4/second per host.
  3. Classify each source against our verified Kolmo answer using Gemini 2.5 Flash with a constrained JSON schema. The classifier is given strict guardrails: be conservative, only flag clear factual conflicts, never flag for stylistic differences.
  4. Human review before public flagging. A flag from the AI classifier is not a public accusation. It enters a queue (the "Pending review" list below) until a Kolmo team member confirms or rejects it. Only confirmed-stale sources are publicly named.

What "stale" means

A source is stale when:

  • It reports a permit threshold, fee, review timeline, or code reference that contradicts the live published rule from the issuing jurisdiction.
  • It quotes a fee from a year that no longer applies and the actual fee changed.
  • It cites a code cycle that has been superseded.

A source is not stale when:

  • It differs from our answer in framing, formatting, or scope of detail.
  • It quotes a different but valid related rule (e.g., commercial vs residential).
  • It has older publication dates but the underlying numbers still match the current rule.

How we handle disputes

If you publish a flagged source and disagree with our verdict, email [email protected] with the URL and your reasoning. We take down a public flag while we re-review. Our standard turnaround on disputes is 5 business days.

What we don't do

  • We don't flag sources for being a competitor. Conflict of interest matters; we name the source, not the author.
  • We don't run hidden affiliate links. We're a Seattle GC; we'd rather you call us, but we don't gate the data behind a lead form.
  • We don't paywall the dataset. Every classification, including our verified Kolmo answer for each query, is on this page.

Confirmed stale

0 source(s)

Reviewed and confirmed stale by the Kolmo team. Public-facing leaderboard.

No sources have been confirmed stale by the Kolmo team yet. As confirmations come in, they'll be listed here with the date of confirmation.

Pending team review

47 source(s)

AI-flagged by our classifier. Source URLs are listed here for transparency but they are not yet publicly named as stale — the Kolmo team must verify each before promotion to the confirmed list. Each row shows the model's reasoning and confidence.

facebook.comSERP rank #8confidence 0.90classifier: gemini-2.5-flash
Open
Does Bellevue limit the height of a privacy fence? 6ft? 8ft?
What the source claims
"A cancelled draft changed Bellevue's maximum fence height without a permit from 6ft to 7ft for side and rear yards."
AI classifier reasoning
The source refers to a 'cancelled draft' that would have increased the permit-exempt fence height to 7ft. Kolmo's verified answer states the current limit is 6ft for side and rear yards, indicating the proposed change was not adopted or is not yet in effect, making the source's information about the change misleading regarding current regulations.
Query: Bellevue fence height limitJurisdiction: bellevueProject: fenceClassified 2026-09-12
codelibrary.amlegal.comSERP rank #7confidence 0.80classifier: gemini-2.5-flash
Open
1215.01 FENCING, SCREENING, WALLS AND BARRIERS.
What the source claims
"Bellevue allows a maximum height of three feet for decorative fencing and six feet for side and rear yard fences, requiring a Zoning Permit for decorative fencing."
AI classifier reasoning
The source states a 3-foot limit for decorative fencing and requires a permit, which contradicts Kolmo's verified answer that allows fences up to 3.5 feet in front-yard setbacks and 6 feet in side/rear yards without a permit. The source's permit requirement for decorative fencing also conflicts with Kolmo's information regarding permit-exempt heights.
Query: Bellevue fence height limitJurisdiction: bellevueProject: fenceClassified 2026-09-12
fencerules.comSERP rank #4confidence 0.90classifier: gemini-2.5-flash
Open
FENCE RULES – BELLEVUE (CITY), NEBRASKA
What the source claims
"The general height limit for fences in Bellevue is 6 feet above ground level, and permits are not required for fences."
AI classifier reasoning
The source is stale because it only mentions a general 6-foot height limit and states no permit is required for fences. Kolmo's verified answer specifies different height limits for front yards (3.5 feet) and implies that fences over the standard height limits DO require a permit and potentially an engineer's stamp for masonry/retaining elements over 4 feet, which contradicts the source's blanket 'no permit required' statement.
Query: Bellevue fence height limitJurisdiction: bellevueProject: fenceClassified 2026-09-12
bellevuewa.govSERP rank #1confidence 0.90classifier: gemini-2.5-flash
Open
Fences | City of Bellevue
What the source claims
"Fences in a required front-yard setback may not exceed 4 feet, 6 inches, and fences exceeding 4 feet, 6 inches, but no taller than 8 feet, may be located anywhere except within the required front-yard setback. Fences taller than eight feet require a building permit approval."
AI classifier reasoning
The source states a front-yard setback limit of 4 feet, 6 inches and a general permit threshold of 8 feet. Kolmo's verified answer indicates a front-yard limit of 3.5 feet and a side/rear yard limit of 6 feet without a permit, with anything over those heights requiring a permit. This is a clear factual contradiction regarding the specific height limits and permit thresholds.
Query: Bellevue fence height limitJurisdiction: bellevueProject: fenceClassified 2026-09-12
seattleroofingco.comSERP rank #5confidence 0.90classifier: gemini-2.5-flash
Open
Seattle Roofing Permits: What Homeowners Need to Know
What the source claims
"Most Seattle homeowners do not need a permit for a like-for-like residential roof replacement as long as no structural changes are made."
AI classifier reasoning
The source claims most residential re-roofs do not require a permit. Kolmo's verified data states that Seattle requires a Subject-to-Field-Inspection permit for re-roofing in most cases, even for like-for-like replacements, with a flat fee. This is a direct contradiction regarding the permit requirement for typical residential re-roofing projects.
Query: Seattle re-roof permitJurisdiction: seattleProject: roofingClassified 2026-09-12
getroofsmart.comSERP rank #2confidence 0.90classifier: gemini-2.5-flash
Open
When Do I Need a Permit for My Roof Work in Seattle?
What the source claims
"Seattle is 'pretty lax' about re-roofing permits, with no permit needed for most residential re-roofs unless structural changes are made or sheathing is replaced (for non-residential)."
AI classifier reasoning
The source claims Seattle is 'pretty lax' and that 'no permit needed to reroof a single-family or duplex home when just replacing roofing material.' This directly contradicts Kolmo's verified answer that Seattle requires a Subject-to-Field-Inspection permit for re-roofing in most cases, even for single-family/duplex re-roofs that retain existing structural framing.
Query: Seattle re-roof permitJurisdiction: seattleProject: roofingClassified 2026-09-12
kitchenmore.comSERP rank #9confidence 0.80classifier: gemini-2.5-flash
Open
Are Permits Required for a Kitchen Remodel in Seattle?
What the source claims
"Minor kitchen repairs or modifications costing less than $6,000 in any 6-month period do not require licensing, and specific tasks like installing cabinets or replacing a sink/faucet also don't require permits."
AI classifier reasoning
The source states a $6,000 threshold for minor repairs not requiring permits, which is an outdated rule. Seattle's current permit requirements for kitchen remodels are based on the scope of work (e.g., plumbing, electrical, structural changes) rather than a cost threshold. The Kolmo verified answer confirms that cosmetic changes generally don't need permits, but specific alterations like relocating plumbing or adding circuits do, regardless of cost.
Query: do I need a permit to remodel my kitchen SeattleJurisdiction: seattleProject: kitchenClassified 2026-09-12
emeraldcitybuild.comSERP rank #7confidence 0.80classifier: gemini-2.5-flash
Open
Seattle Remodeling Permits – When Do You Need One & ...
What the source claims
"If you're remodeling a kitchen in Seattle, you'll almost certainly need a permit, especially if it involves plumbing, electrical, or ventilation updates. Even minor updates like replacing a toilet may require a permit in some jurisdictions."
AI classifier reasoning
The source claims that kitchen remodels 'almost certainly' require a permit, and even 'relatively minor updates' like replacing a toilet might. This contradicts Kolmo's verified answer, which states that cosmetic kitchen remodels (paint, cabinets, fixtures with no plumbing/electrical/structural changes) typically do not require a permit. The source overstates the permit requirement for minor cosmetic work.
Query: do I need a permit to remodel my kitchen SeattleJurisdiction: seattleProject: kitchenClassified 2026-09-12
tacomapermits.orgSERP rank #2confidence 0.90classifier: gemini-2.5-flash
Open
Is a building permit required to build a deck?
What the source claims
"A building permit is not required for a deck that is 200 sq ft or less, 30 inches or less above grade, not attached to the house, and for a single-family, duplex, or townhouse."
AI classifier reasoning
The source is stale because it states a deck is exempt if 'not attached to the house', which contradicts Kolmo's verified answer that a permit is required for any attached deck when load attachment is involved, regardless of height. The source also implies a 200 sq ft threshold for exemption, which is not mentioned in Kolmo's answer for Tacoma.
Query: Tacoma deck permitJurisdiction: tacomaProject: deckClassified 2026-09-12
bellevuewa.govSERP rank #8confidence 0.90classifier: gemini-2.5-flash
Open
Pre-Approved Plans | City of Bellevue
What the source claims
"Bellevue's middle housing code changes, adopted June 24, 2025, allow ADUs and other middle housing types on all residentially zoned lots, with DADUs having a maximum size of 1,200 square feet and a maximum height of 24 feet."
AI classifier reasoning
The source states that middle housing code changes were adopted on June 24, 2025, which is a future date. Kolmo's data reflects current regulations, which specify a maximum DADU size of 1,000 sqft and a typical maximum height of 22 ft, contradicting the source's future-dated claims of 1,200 sqft and 24 ft. This indicates the source is discussing future or proposed rules, not the currently effective ones.
Query: Bellevue ADU rulesJurisdiction: bellevueProject: aduClassified 2026-09-12
aduzoning.orgSERP rank #4confidence 0.90classifier: gemini-2.5-flash
Open
Bellevue ADU Rules (2026): DADU Permits, Size & Costs
What the source claims
"Bellevue allows detached ADUs up to 1,200 sq ft, with the Director able to approve larger units for conversions or single-floor units in the primary structure."
AI classifier reasoning
The source claims a maximum detached ADU size of 1,200 sq ft, which contradicts Kolmo's verified answer of 1,000 sq ft for DADUs. This is a clear factual conflict regarding a key ADU regulation.
Query: Bellevue ADU rulesJurisdiction: bellevueProject: aduClassified 2026-09-12
bellevuewa.govSERP rank #1confidence 0.90classifier: gemini-2.5-flash
Open
Accessory Dwelling Unit (ADU) Reform LUCA
What the source claims
"Bellevue's Land Use Code Amendment (LUCA) increased ADU size limits to 1,200 sq. ft. or 40% of the structure, whichever is larger, and revised off-street parking requirements."
AI classifier reasoning
The source states that ADU size limits were increased to 1,200 sq. ft. or 40% of the structure, whichever is larger. This contradicts Kolmo's verified answer, which states a max size of 1,000 sqft for DADUs or 50% of the primary residence for AADUs. The source also details parking requirements that differ from Kolmo's general statement, indicating a potential conflict in specific thresholds.
Query: Bellevue ADU rulesJurisdiction: bellevueProject: aduClassified 2026-09-12
ergeon.comSERP rank #7confidence 0.90classifier: gemini-2.5-flash
Open
A Guide to Fence Laws in Seattle, WA
What the source claims
"In Seattle, a building permit is not required for fences less than eight feet high."
AI classifier reasoning
The source claims a permit is not needed for fences under eight feet. However, Kolmo's verified answer states that in Seattle, fences over six feet tall (or over four feet in front yard setbacks for some lots) require a building permit, citing SMC 23.44.040. This is a direct factual contradiction regarding the permit height threshold.
Query: Seattle fence permitJurisdiction: seattleProject: fenceClassified 2026-09-12
kaamcam.comSERP rank #6confidence 0.90classifier: gemini-2.5-flash
Open
Seattle Fence Installation Permit 2026
What the source claims
"The typical permit fee for a fence in Seattle is $50-$300, with plan review taking 10-25 business days."
AI classifier reasoning
The source implies that a permit is generally required for fences in Seattle and provides associated fees and timelines. However, Kolmo's verified answer states that a building permit is only required for fences over 6 feet tall (or over 4 feet in front yard setbacks for some lots), making most fences exempt. The source's general claim of a permit fee and review for 'Seattle Fence Permit' is misleading for typical fence installations.
Query: Seattle fence permitJurisdiction: seattleProject: fenceClassified 2026-09-12
propertyzoned.comSERP rank #5confidence 0.90classifier: gemini-2.5-flash
Open
Can I Build a Fence in Seattle, WA? (2026 Rules)
What the source claims
"Building a fence in Seattle, WA may be allowed, Permit required: Conditional."
AI classifier reasoning
The source claims a permit is 'Conditional' for building a fence in Seattle, implying a permit is generally required. Kolmo's verified answer states that fences only require a building permit if they are over 6 feet tall (or over 4 feet in front yard setbacks), and fences 6 feet or less are exempt. This is a direct contradiction regarding the general permit requirement.
Query: Seattle fence permitJurisdiction: seattleProject: fenceClassified 2026-09-12
pipercolearchitects.netSERP rank #8confidence 0.80classifier: gemini-2.5-flash
Open
Seattle DADU Rules 2026: Size, Setbacks & Permits
What the source claims
"Seattle DADU maximum size is 1,000 sq ft or 60% of the primary dwelling floor area, whichever is greater."
AI classifier reasoning
The source states a maximum DADU size of 1,000 sq ft or 60% of the primary dwelling, whichever is greater. Kolmo's verified answer indicates that an ADU with up to two bedrooms is capped at 1,000 sqft, but one with three or more bedrooms is capped at 1,200 sqft, which is a direct contradiction regarding the maximum size for larger ADUs.
Query: Seattle ADU permit requirementsJurisdiction: seattleProject: aduClassified 2026-09-12
seattle.govSERP rank #1confidence 0.80classifier: gemini-2.5-flash
Open
Decks — Seattle SDCI
What the source claims
"You need a permit to build a deck if it is more than 18 inches above the ground."
AI classifier reasoning
The source states a permit is needed for decks over 18 inches above ground. However, Kolmo's verified answer indicates that recent guidance (Director's Rule) references a 30-inch threshold, making the 18-inch claim potentially outdated. This is a clear factual conflict regarding the permit threshold.
Query: Seattle deck permitJurisdiction: seattleProject: deckClassified 2026-09-12
orcaroofing.comSERP rank #9confidence 0.80classifier: gemini-2.5-flash
Open
Seattle Deck Cost Guide — Real 2026 Pricing by Material
What the source claims
"Seattle DCI permits for decks cost $800 $2,500 in 2026, with approval timelines of 4 8 weeks, and are priced on project value."
AI classifier reasoning
The source's permit fee range ($800 $2,500) is higher than Kolmo's verified range ($500 $1,200) for a typical residential deck. While both mention project value and similar timelines, the fee discrepancy indicates staleness or a different scope of 'typical' project.
Query: Seattle deck permitJurisdiction: seattleProject: deckClassified 2026-09-12
blockrenovation.comSERP rank #8confidence 0.80classifier: gemini-2.5-flash
Open
Seattle Deck Building & Remodeling – Materials, Permits ...
What the source claims
"Decks with a walking surface 18 inches or less above grade generally do not require a construction permit in Seattle, unless in an environmentally critical area."
AI classifier reasoning
The source states a permit threshold of 18 inches above grade for decks, which contradicts Kolmo's verified answer referencing recent guidance that points to a 30-inch threshold. While the source notes the rules are administered by SDCI, it provides an outdated specific height.
Query: Seattle deck permitJurisdiction: seattleProject: deckClassified 2026-09-12
mybuildingpermit.comSERP rank #7confidence 0.90classifier: gemini-2.5-flash
Open
Basic Deck
What the source claims
"The source is a PDF document titled 'Basic Deck' from mybuildingpermit.com, but the excerpt provided is unreadable due to PDF corruption."
AI classifier reasoning
The provided excerpt is corrupted PDF data and cannot be read or interpreted. Therefore, it's impossible to assess its content against Kolmo's verified answer. However, the URL and title suggest it's a technical document about deck permits, which would likely contain specific thresholds, fees, or timelines. Given the unreadability, it cannot be confirmed as current or accurate, leading to a 'stale' classification due to lack of verifiable information. The confidence is high because the data is clearly unreadable.
Query: Seattle deck permitJurisdiction: seattleProject: deckClassified 2026-09-12
permitflow.comSERP rank #6confidence 0.80classifier: gemini-2.5-flash
Open
Seattle Permitting Guide for Builders & Contractors
What the source claims
"Decks and platforms less than 18 inches above grade and not over a basement or other building story typically do not require a permit in Seattle."
AI classifier reasoning
The source states that decks less than 18 inches above grade do not require a permit. Kolmo's verified answer indicates that the current guidance (SDCI Tip 311) references a 30-inch threshold, which is a significant difference and makes the source's claim outdated.
Query: Seattle deck permitJurisdiction: seattleProject: deckClassified 2026-09-12
seattledecksupply.comSERP rank #4confidence 0.80classifier: gemini-2.5-flash
Open
Design and Permit Resources
What the source claims
"The source references the 2015 AWC Prescriptive Residential Wood Deck Construction Guide and a webinar on 2021 IRC Deck Codes, noting 2018 as a significant year for deck codes."
AI classifier reasoning
The source explicitly references outdated code cycles (2015 AWC guide, 2021 IRC webinar, and 2018 code changes) without clearly stating that these are superseded. Seattle's current deck permit guidance (SDCI Tip 311) and the underlying code are based on the most recent WA-amended IRC, which would be the 2021 IRC with WA amendments, not the 2015 or 2018 versions as primary references. While it mentions checking with local government, the prominent display of older code resources makes it stale.
Query: Seattle deck permitJurisdiction: seattleProject: deckClassified 2026-09-12
masterdecks.comSERP rank #2confidence 0.90classifier: gemini-2.5-flash
Open
Deck Permits in Seattle: Do You Need One?
What the source claims
"In the City of Seattle, you generally need a construction permit if your deck’s walking surface is more than 18 inches above grade, or if you’re building a roof deck. Lower platforms under 18" and not over a story below are typically exempt."
AI classifier reasoning
The source claims Seattle's deck permit threshold is 18 inches above grade. However, Kolmo's verified answer states that recent guidance (SDCI Tip 311) references a 30-inch threshold, noting that the 18-inch figure is historical. This constitutes a direct factual contradiction regarding the current permit requirement.
Query: Seattle deck permitJurisdiction: seattleProject: deckClassified 2026-09-12
seattle.govSERP rank #1confidence 0.80classifier: gemini-2.5-flash
Open
Decks - Construction and Inspections
What the source claims
"You need a permit to build a deck if it is more than 18 inches above the ground."
AI classifier reasoning
The source states a permit is needed for decks over 18 inches above ground. Kolmo's verified answer indicates that the current guidance, updated by Director's Rule, references a 30-inch threshold, making the source's 18-inch claim outdated.
Query: Seattle deck permitJurisdiction: seattleProject: deckClassified 2026-09-12
refinedesignarch.comSERP rank #9confidence 0.90classifier: gemini-2.5-flash
Open
How to Navigate Single-Family Residential Permits in Seattle
What the source claims
"Replacing roofing does not require a permit as long as there is no structural work."
AI classifier reasoning
The source claims no permit is needed for roofing replacement without structural work. However, Kolmo's verified data indicates that Seattle generally requires a Subject-to-Field-Inspection permit for re-roofing, even for single-family/duplex projects without structural changes, with a flat fee and same-day issuance.
Query: Seattle re-roof permitJurisdiction: seattleProject: roofingClassified 2026-09-11
aduzoning.orgSERP rank #8confidence 0.90classifier: gemini-2.5-flash
Open
Are ADUs Legal in Seattle? Size, Setbacks & Permits (2026)
What the source claims
"Seattle's ADU rules, verified July 27, 2026, allow two detached ADUs per lot, with a maximum size of 1,000 sq ft (1,200 sq ft for 3+ bedrooms) and a height allowance of 32 ft in most Neighborhood Residential zones."
AI classifier reasoning
The source claims to be verified against 2026 code, but its stated height allowance of 32 ft for DADUs in Neighborhood Residential zones contradicts Kolmo's verified answer of 15-22 ft based on 2019/2023 code. While the source mentions recent ordinance changes, the specific height limit provided is a clear factual conflict with the current verified data.
Query: Seattle ADU permit requirementsJurisdiction: seattleProject: aduClassified 2026-09-11
denvergov.orgSERP rank #9confidence 0.90classifier: gemini-2.5-flash
Open
Fences and Walls - Zoning Permits
What the source claims
"Except for industrial areas, the maximum fence height allowed is four feet in the front yard and six feet in the backyard. All fences over four feet tall need a zoning permit."
AI classifier reasoning
The source provides fence height limits and permit requirements for Denver, CO, which are different from Bellevue, WA. Bellevue's front-yard setback limit is 3.5 feet, not 4 feet, and it specifies different permit thresholds and requirements for masonry/retaining elements. The source is entirely irrelevant to the query about Bellevue.
Query: Bellevue fence height limitJurisdiction: bellevueProject: fenceClassified 2026-09-10
permitmint.comSERP rank #7confidence 0.80classifier: gemini-2.5-flash
Open
How to Get a Deck Permit in Seattle, WA (2026 Guide)
What the source claims
"Permitmint claims Seattle deck permit fees are $120-$960 and the timeline is about 3 weeks."
AI classifier reasoning
The source's stated fee range ($120-$960) is lower than Kolmo's verified range ($500-$1,200). Additionally, the timeline of 'about 3 weeks' for a typical permit review is significantly shorter than Kolmo's verified 4-8 weeks for a Construction Permit, though some decks may qualify for same-day issuance.
Query: Seattle deck permitJurisdiction: seattleProject: deckClassified 2026-09-09
permitdeck.comSERP rank #5confidence 0.90classifier: gemini-2.5-flash
Open
Deck Permit in Seattle, WA: Fees, Requirements & How to Apply ...
What the source claims
"Decks 18 inches or less above ground in Seattle do not require a permit, unless in an Environmentally Critical Area."
AI classifier reasoning
The source claims an 18-inch permit exemption threshold for decks, but Kolmo's verified answer indicates that recent guidance references a 30-inch threshold, and advises verification against the live PDF of SDCI Tip 311, suggesting the 18-inch figure is outdated. This is a direct contradiction of a key permit requirement.
Query: Seattle deck permitJurisdiction: seattleProject: deckClassified 2026-09-09
raincityfence.comSERP rank #8confidence 0.90classifier: gemini-2.5-flash
Open
Fence Permit Seattle & Eastside Rules
What the source claims
"Bellevue allows fences up to 6 feet solid, with open designs up to 8 feet in some zones, and generally does not require a permit for fences 6 feet or shorter unless they involve structural components or environmentally critical areas."
AI classifier reasoning
The source claims Bellevue allows 6-foot solid fences and 8-foot open fences without a permit, and that fences 6 feet or shorter generally don't need a permit. Kolmo's data indicates Bellevue limits fences to 6 feet in side/rear yards and 3.5 feet in front yards without a permit, and anything over those heights requires a permit. This is a direct contradiction regarding permit requirements and front yard height limits.
Query: Bellevue fence height limitJurisdiction: bellevueProject: fenceClassified 2026-09-07
modelremodel.comSERP rank #10confidence 0.90classifier: gemini-2.5-flash
Open
Accessory Dwelling Units (adus) & Backyard Cottages in Seattle
What the source claims
"The source claims Seattle code limits the size of an ADU/DADU to 'no more than 50% of the main home’s square footage'."
AI classifier reasoning
The source is stale because it reports an outdated ADU/DADU size limit of 'no more than 50% of the main home’s square footage', which was superseded by current rules allowing fixed maximum sizes (e.g., 1,000 sqft or 1,200 sqft with bonus). Additionally, it only references 2019 code updates and misses the significant 2023 ADU rule expansion.
Query: Seattle ADU permit requirementsJurisdiction: seattleProject: aduClassified 2026-09-06
aduwizard.comSERP rank #9confidence 0.90classifier: gemini-2.5-flash
Open
How Much Does an ADU Cost in Bellevue in 2026?
What the source claims
"Bellevue allows detached ADUs up to 1,200 sqft floor area with a max height of 24 ft."
AI classifier reasoning
The source claims a maximum detached ADU size of 1,200 sqft and a maximum height of 24 ft. This contradicts Kolmo's verified data, which states a maximum DADU size of 1,000 sqft and a typical maximum height of 22 ft.
Query: Bellevue ADU rulesJurisdiction: bellevueProject: aduClassified 2026-09-05
sweeten.comSERP rank #10confidence 0.80classifier: gemini-2.5-flash
Open
Do I Need a Permit for Kitchen Renovation? - Sweeten
What the source claims
"A kitchen remodel definitely needs a permit, though minor changes like replacing cabinets, countertops, and flooring in the same footprint are less likely to require one."
AI classifier reasoning
The source's claim that a kitchen remodel 'definitely needs a permit' contradicts Kolmo's verified answer, which states that cosmetic kitchen remodels without plumbing, electrical, or structural changes typically do not require a building permit in Seattle.
Query: do I need a permit to remodel my kitchen SeattleJurisdiction: seattleProject: kitchenClassified 2026-09-03
gatheradu.comSERP rank #8confidence 0.90classifier: gemini-2.5-flash
Open
Bellevue, WA ADU Information
What the source claims
"The source claims Bellevue allows a maximum ADU size of 'at least 1,000 square feet' and a maximum height of 'up to 24 ft'."
AI classifier reasoning
The source is stale because it incorrectly states Bellevue's maximum ADU height as 'up to 24 ft', whereas Kolmo's verified data indicates it is typically 22 ft for DADUs. While the source mentions 1,000 sq ft, it frames it as a state-mandated minimum or '1,000+ sq ft allowed Max ADU Size', which is less precise than Kolmo's specific maximums for DADU (1,000 sqft) and AADU (50% of primary residence) in Bellevue.
Query: Bellevue ADU rulesJurisdiction: bellevueProject: aduClassified 2026-09-03
permitsguide.comSERP rank #9confidence 0.90classifier: gemini-2.5-flash
Open
Do You Need a Permit for an Deck in Washington State? (2026)
What the source claims
"In Seattle, a building permit is required for any deck with a walking surface more than 18 inches above the ground."
AI classifier reasoning
The source claims Seattle's deck permit threshold is 18 inches above grade, but Kolmo's verified data indicates that this threshold has historically been quoted as 18 inches, with recent guidance referencing 30 inches, making the source's specific claim outdated.
Query: Seattle deck permitJurisdiction: seattleProject: deckClassified 2026-09-03
annabellafence.comSERP rank #10confidence 1.00classifier: gemini-2.5-flash
Open
What is the Fence Law in Pennsylvania?
What the source claims
"The source claims that Pennsylvania fence laws limit residential fences to six feet in height without a special permit, with stricter limits in front yards."
AI classifier reasoning
The source discusses fence laws in Pennsylvania and Northern Allegheny County, which is entirely irrelevant to the query about Bellevue, Washington. The information provided does not apply to Bellevue.
Query: Bellevue fence height limitJurisdiction: bellevueProject: fenceClassified 2026-09-02
allaboutfencewa.comSERP rank #9confidence 0.90classifier: gemini-2.5-flash
Open
New Wood Fence: The Perfect Addition to Your Bellevue ...
What the source claims
"Fences in Bellevue can typically be up to six feet tall in the backyard and four feet tall in the front yard."
AI classifier reasoning
The source claims a front yard fence height limit of four feet, which directly contradicts Kolmo's verified answer of 3.5 feet for front-yard setbacks without a permit.
Query: Bellevue fence height limitJurisdiction: bellevueProject: fenceClassified 2026-09-01
bellevue.netSERP rank #9confidence 1.00classifier: gemini-2.5-flash
Open
CivicPlus.CMS.FAQ - Bellevue, NE
What the source claims
"The source states that permits are not required for fences in Bellevue and mentions a 6-foot height for pool fences, citing Bellevue Zoning Code, Section 9.09."
AI classifier reasoning
The source is for Bellevue, Nebraska, as indicated by the URL (bellevue.net) and phone numbers (402 area code), not Bellevue, Washington, which is in the Seattle metro area. Therefore, its information on fence height limits and permit requirements is irrelevant to the query.
Query: Bellevue fence height limitJurisdiction: bellevueProject: fenceClassified 2026-08-31
seattle.govSERP rank #6confidence 0.90classifier: gemini-2.5-flash
Open
Construction Permit - Addition or Alteration
What the source claims
"The source states that a construction permit is needed to remodel a building, including changes to the interior like moving non-structural walls."
AI classifier reasoning
The source broadly claims that a construction permit is required for remodels, which directly contradicts Kolmo's verified answer that cosmetic kitchen remodels (paint, cabinets, fixtures with no plumbing/electrical/structural changes) typically do not require a permit in Seattle.
Query: do I need a permit to remodel my kitchen SeattleJurisdiction: seattleProject: kitchenClassified 2026-08-29
mercerisland.govSERP rank #8confidence 0.90classifier: gemini-2.5-flash
Open
Re-Roof Permits - Single Family Residential - Mercer Island
What the source claims
"Mercer Island requires re-roof permits for single-family residential structures when sheathing is replaced or the type of roofing material is changed, with applications handled via mybuildingpermit.com."
AI classifier reasoning
The source provides permit requirements and processes for Mercer Island, WA, which is a distinct jurisdiction from Seattle, WA. The information presented in the source is therefore not applicable to the user's query about Seattle re-roof permits and contradicts the specific details provided for Seattle by Kolmo.
Query: Seattle re-roof permitJurisdiction: seattleProject: roofingClassified 2026-08-28
mtexpress.comSERP rank #9confidence 0.90classifier: gemini-2.5-flash
Open
Bellevue passes new sidewalk and fence regulations
What the source claims
"Bellevue's new fence regulations limit front yard fences to 4 feet and require a $100 permit for all new or replaced fences in the General Residential zone."
AI classifier reasoning
The source states a front yard fence height limit of 4 feet, which contradicts Kolmo's verified 3.5 feet. Furthermore, the source claims a $100 permit is required for all new or replaced fences in the General Residential zone, while Kolmo indicates permits are only needed for fences exceeding specific height limits.
Query: Bellevue fence height limitJurisdiction: bellevueProject: fenceClassified 2026-08-27
coolcatfence.comSERP rank #3confidence 0.90classifier: gemini-2.5-flash
Open
Seattle Fence History: From Spite Fences to Modern HOA Rules
What the source claims
"You typically do not need a permit for fences up to 8 feet tall that do not include masonry or concrete sections over 6 feet and are not located in a flood-prone or environmentally critical area."
AI classifier reasoning
The source claims a permit is not needed for fences up to 8 feet tall, which directly contradicts Kolmo's verified answer that a building permit is required for fences over 6 feet tall in Seattle.
Query: Seattle fence permitJurisdiction: seattleProject: fenceClassified 2026-08-25
permitnotebook.comSERP rank #9confidence 0.90classifier: gemini-2.5-flash
Open
Do You Need a Roof Replacement Permit in Seattle, WA? Usually Not
What the source claims
"The source claims that a like-for-like roof replacement on a detached one or two-family house in Seattle typically does not require a permit, and replacing roof sheathing also does not require a permit if no changes are made to the building envelope."
AI classifier reasoning
The source directly contradicts Kolmo's verified data by stating that a permit is typically not required for like-for-like residential re-roofs, whereas Kolmo states a Subject-to-Field-Inspection permit is required in most cases for re-roofing, even if it's a flat-fee permit for single-family/duplex. Additionally, the source claims replacing roof sheathing does not require a permit under certain conditions, which conflicts with Kolmo's statement that removing existing sheathing may push a project into Construction Permit scope.
Query: Seattle re-roof permitJurisdiction: seattleProject: roofingClassified 2026-08-24
seattleroofingco.comSERP rank #5confidence 0.90classifier: gemini-2.5-flash
Open
Seattle Roofing Permits: What Homeowners Need to Know
What the source claims
"Most Seattle homeowners do not need a permit for a straight like-for-like residential roof replacement as long as no structural changes are made, and on-site physical inspections are not required for standard re-roof permits."
AI classifier reasoning
The source claims that a permit is generally not required for like-for-like residential re-roofs without structural changes and that no on-site inspections are needed. This directly contradicts Kolmo's verified data, which states that a Subject-to-Field-Inspection permit is required in most cases for re-roofing, including a flat-fee permit for single-family/duplex re-roofs retaining existing structural framing, implying an inspection.
Query: Seattle re-roof permitJurisdiction: seattleProject: roofingClassified 2026-08-24
kolmo.ioSERP rank #9confidence 0.90classifier: gemini-2.5-flash
Open
Fence permits in City of Bellevue: fees, timeline & requirements (2026)
What the source claims
"A permit is not required for a fence in Bellevue unless it is over 8 feet tall."
AI classifier reasoning
The source states a permit is only required for fences over 8 feet tall, which contradicts Kolmo's verified data that a permit is required for fences over 6 feet in side and rear yards, and over 3.5 feet in front-yard setbacks.
Query: Bellevue fence height limitJurisdiction: bellevueProject: fenceClassified 2026-08-21
ihrseattle.comSERP rank #9confidence 0.80classifier: gemini-2.5-flash
Open
Do You Need a Permit For Your Remodel?
What the source claims
"The city of Seattle does not require permits for minor repairs or alterations that cost a total of $6,000 or less and that occur over six months, with exceptions for specific types of work."
AI classifier reasoning
The source's claim of a $6,000 cost threshold for permit exemptions for minor repairs or alterations is outdated and contradicts current Seattle permit guidance, which focuses on the scope and type of work (e.g., like-for-like replacement vs. relocation/alteration) rather than a blanket cost limit for general exemptions.
Query: Seattle bathroom remodel permitJurisdiction: seattleProject: bathroomClassified 2026-08-20
waukesha-wi.govSERP rank #8confidence 1.00classifier: gemini-2.5-flash
Open
Fence Installation - Waukesha-wi.gov
What the source claims
"The source outlines fence installation guidelines for the City of Waukesha, Wisconsin, stating that fences do not require permits and have a maximum height of 6 feet, or 3 feet in vision triangles."
AI classifier reasoning
The source provides fence height limits and permit requirements for the City of Waukesha, Wisconsin, which is a different jurisdiction than Bellevue, Washington. Therefore, its information is irrelevant and directly contradicts the Kolmo verified answer for Bellevue.
Query: Bellevue fence height limitJurisdiction: bellevueProject: fenceClassified 2026-08-17

Coverage

Where we've scanned, broken down by jurisdiction and project type.

By jurisdiction

  • seattle122 scanned · 29 flagged
  • bellevue41 scanned · 17 flagged
  • king-county-unincorporated19 scanned · 0 flagged
  • tacoma18 scanned · 1 flagged

By project type

  • fence48 scanned · 16 flagged
  • deck38 scanned · 12 flagged
  • adu38 scanned · 8 flagged
  • kitchen23 scanned · 4 flagged
  • addition19 scanned · 0 flagged
  • roofing17 scanned · 6 flagged
  • bathroom17 scanned · 1 flagged

Our own sources

last sweep 2026-09-07

We hold the same standard to ourselves. Every Monday we re-fetch each official city page our permit data cites — 801 of them — and hash it. This table says which city each source belongs to and whether we could reach it, so a failing source is attributable on sight instead of by hand-matching URLs.

We hash what each page says, not what its markup contains — scripts, styles and tag attributes are stripped before hashing. Hashing the raw HTML flagged 66% of successful re-fetches as "changed", and nearly all of it was rotating CDN tokens rather than any change to the rule. A detector that fires on everything catches nothing.

A failure here is not a broken citation. It is hygiene on the pages we monitor. And the reason matters: page gone means the city removed it and the link needs re-pointing, while blocked by host means the city's bot filter refused ourfetcher — those pages load normally in a browser, and treating them as dead would send someone to "fix" a URL that was never broken.

Sources monitored
801
Checked so far
801
Reachable
446
Page gone (404)
20
Blocked / unreachable
328

A further 273 pages we used to cite are no longer cited by any rule. We keep their history — the record of what a source said on a date is worth keeping — but they are not counted against any city.

City of Kentkent
0/13 reachable
City of Edmondsedmonds
1/13 reachable
City of Rentonrenton
1/13 reachable
City of Burienburien
0/12 reachable
City of SeaTacseatac
0/12 reachable
City of Bothellbothell
1/12 reachable
City of Lynnwoodlynnwood
1/12 reachable
Snohomish County (unincorporated)snohomish-county-unincorporated
1/12 reachable
City of Covingtoncovington
0/11 reachable
City of Redmondredmond
5/15 reachable
City of Monroemonroe
1/11 reachable
Pierce County (unincorporated)pierce-county-unincorporated
1/11 reachable
City of Algonaalgona
0/10 reachable
City of Normandy Parknormandy-park
0/10 reachable
City of Federal Wayfederal-way
4/13 reachable
City of Kirklandkirkland
3/12 reachable
City of Lakewoodlakewood
2/11 reachable
City of Auburnauburn
1/10 reachable
City of Snohomishsnohomish-city
1/10 reachable
City of Gig Harborgig-harbor
0/9 reachable
City of Woodinvillewoodinville
0/9 reachable
Town of South Prairiesouth-prairie
0/8 reachable
City of Issaquahissaquah
8/15 reachable
City of Shorelineshoreline
6/13 reachable
City of Sammamishsammamish
6/13 reachable
City of Bellevuebellevue
5/12 reachable
City of Everetteverett
2/9 reachable
City of Stanwoodstanwood
1/8 reachable
City of Seattleseattle
11/16 reachable
City of Sumnersumner
6/11 reachable
City of University Placeuniversity-place
4/9 reachable
City of Mukilteomukilteo
7/11 reachable
City of Marysvillemarysville
5/9 reachable
City of Royroy
2/6 reachable
City of Tacomatacoma
10/13 reachable
City of Fifefife
9/12 reachable
King County (unincorporated)king-county-unincorporated
7/10 reachable
City of Lake Stevenslake-stevens
7/10 reachable
City of Brierbrier
7/10 reachable
City of Fircrestfircrest
7/10 reachable
City of Pacificpacific
6/9 reachable
City of Lake Forest Parklake-forest-park
5/8 reachable
Town of Beaux Arts Villagebeaux-arts-village
3/6 reachable
Town of Woodwaywoodway
10/12 reachable
City of Granite Fallsgranite-falls
9/11 reachable
City of Snoqualmiesnoqualmie
9/11 reachable
City of Buckleybuckley
8/10 reachable
City of Bonney Lakebonney-lake
8/10 reachable
City of Des Moinesdes-moines
7/9 reachable
City of Ortingorting
0/2 reachable
Shared / multi-jurisdiction sources
16/17 reachable

Pages cited by several jurisdictions at once (state code, county manuals, shared code platforms). They belong to no single city, so we leave them unattributed rather than picking one.

City of Edgewoodedgewood
12/13 reachable
City of Sultansultan
10/11 reachable
City of North Bendnorth-bend
9/10 reachable
City of Kenmorekenmore
9/10 reachable
City of Mill Creekmill-creek
9/10 reachable
City of Puyalluppuyallup
8/9 reachable
City of Newcastlenewcastle
8/9 reachable
Town of Eatonvilleeatonville
7/8 reachable
City of Tukwilatukwila
7/8 reachable
Town of Yarrow Pointyarrow-point
7/8 reachable
City of Gold Bargold-bar
7/8 reachable
Town of Darringtondarrington
7/8 reachable
Town of Wilkesonwilkeson
6/7 reachable
City of DuPontdupont
6/7 reachable
Town of Indexindex
5/6 reachable
Town of Skykomishskykomish
4/5 reachable
Town of Hunts Pointhunts-point
4/5 reachable
Town of Carbonadocarbonado
4/5 reachable
City of Arlingtonarlington
12/12 reachable
City of Carnationcarnation
11/11 reachable
City of Duvallduvall
10/10 reachable
City of Mercer Islandmercer-island
10/10 reachable
City of Maple Valleymaple-valley
9/9 reachable
City of Enumclawenumclaw
9/9 reachable
City of Black Diamondblack-diamond
9/9 reachable
Town of Rustonruston
9/9 reachable
Town of Steilacoomsteilacoom
8/8 reachable
City of Clyde Hillclyde-hill
7/7 reachable
City of Medinamedina
7/7 reachable
Washington State (baseline)wa-state
1/1 reachable
City of Milton (Pierce)milton-pierce
1/1 reachable

Recently scanned

The 30 most recently classified sources, regardless of verdict.

VerdictDomainQueryLast seen
okyoutube.comKing County unincorporated permit fees2026-09-12
okkingcounty.govKing County unincorporated permit fees2026-09-12
okkingcounty.govKing County unincorporated permit fees2026-09-12
okkingcounty.govKing County unincorporated permit fees2026-09-12
okkingcounty.govKing County unincorporated permit fees2026-09-12
okreddit.comKing County unincorporated permit fees2026-09-12
okkingcounty.govKing County unincorporated permit fees2026-09-12
okkingcounty.govKing County unincorporated permit fees2026-09-12
okkingcounty.govKing County unincorporated permit fees2026-09-12
okcoolcatfence.comBellevue fence height limit2026-09-12
flaggedfacebook.comBellevue fence height limit2026-09-12
flaggedcodelibrary.amlegal.comBellevue fence height limit2026-09-12
okraincityfence.comBellevue fence height limit2026-09-12
okbellevue.municipal.codesBellevue fence height limit2026-09-12
flaggedfencerules.comBellevue fence height limit2026-09-12
okecode360.comBellevue fence height limit2026-09-12
okoptimafenceanddeck.comBellevue fence height limit2026-09-12
flaggedbellevuewa.govBellevue fence height limit2026-09-12
okseattle.govSeattle re-roof permit2026-09-12
okissaquahwa.govSeattle re-roof permit2026-09-12
okyoutube.comSeattle re-roof permit2026-09-12
okeliteroofingnw.comSeattle re-roof permit2026-09-12
flaggedseattleroofingco.comSeattle re-roof permit2026-09-12
okaxiomd7.netSeattle re-roof permit2026-09-12
okseattle.govSeattle re-roof permit2026-09-12
flaggedgetroofsmart.comSeattle re-roof permit2026-09-12
okseattle.govSeattle re-roof permit2026-09-12
okduetright.comSeattle bathroom remodel permit2026-09-12
okfineelm.comSeattle bathroom remodel permit2026-09-12
okcrescentbuilds.comSeattle bathroom remodel permit2026-09-12