Basement finish permits in City of Redmond: fees, timeline & requirements (2026)

Everything you need to know about pulling a basement finish permit in City of Redmond, Washington — when one is required, what it costs, how long review takes, what documents are required, and which inspections you can expect. Cited to Redmond uses ePlans portal..

Permit required?
Yes — see threshold below
Permit fee
Plan-review fee scales with valuation. State surcharge $4.50. Apply via https://eplans.redmond.gov. Redmond uses ePlans portal.
Review timeline

When does a basement finish need a permit in City of Redmond?

2021 IRC R310: every sleeping room below grade requires emergency escape and rescue opening (egress window). Min sill height 44in, min net clear opening 5.7 sq ft (5.0 grade-floor), min width 20in, height 24in. Ceiling height min 7ft (R305). Entire newly conditioned area must comply with WSEC R402.

Required submittals

  • floor plan w/ egress windows + ceiling heights
  • electrical layout
  • plumbing diagram
  • mechanical / HVAC plan
  • WSEC compliance form (newly conditioned space)
  • smoke/CO alarm locations

Inspection sequence

  1. rough-in (electrical/plumbing/mechanical)
  2. framing
  3. insulation
  4. drywall
  5. final

Contractor specialties needed

general, electrical-01-or-02, plumbing, mechanical

Notes & caveats

Construction permit required for any habitable space addition. Smoke + CO alarms required (R314, R315). Any new circuits, plumbing fixtures, or HVAC requires trade permits.

How to apply

  1. 1. Confirm your parcel's zoning & overlays. Run an address lookup on the main permits page — we'll pull your specific lot polygon, zoning, setbacks, and any shoreline/ECA/historic overlays.
  2. 2. Assemble submittals (6).
  3. 3. Submit through the city portal: Redmond uses ePlans portal.
  4. 4. Track review (typical: ). Respond to reviewer comments promptly.
  5. 5. Pay issuance fees (Plan-review fee scales with valuation. State surcharge $4.50. Apply via https://eplans.redmond.gov. Redmond uses ePlans portal.) and pick up the permit. Inspection card travels with the job.
City of Redmond resourcesPermit portal ↗Fee schedule ↗