Bolthole Index

San Juan County, Washington

Zoning, building permits and septic rules in Town of Friday Harbor, Washington

Town of Friday Harbor is a town in San Juan County, Washington. 4 rules below are quoted from official sources and independently re-checked, most recently on October 24, 2026. Rules for unincorporated land are on the San Juan County page.

Answers from the rulebook for Town of Friday Harbor

Town of Friday Harbor’s own rules

  • Permit feesPublished (with conditions)

    Town building, plan-review, plumbing, mechanical, and clearing/grading permits.

    • Building, plumbing, mechanical, and clearing/grading fee tables receive a 1.25 regional modifier where stated.
    • Work begun before required permit issuance has a double required-permit fee excluding plan-check fee, with a $50 minimum.

    regional modifier: 1.25 (Applied to the building, plumbing, mechanical, and clearing/grading fee tables specified in FHMC 15.04.020.) · minimum after-the-fact fee: >= 50 USD (Excludes the plan-check fee; required permit fee is doubled.)

    “Building permit fees shall be assessed in accordance with Table 1-A, Building Permit Fees, of the 1997 Uniform Building Code, Second Printing. A multiplier of 1.25 shall be applied to this table as a regional modifier.”
  • Permit processPartial

    Accessory dwelling-unit approvals in Friday Harbor's single-family residential zone.

    • A deed restriction must be recorded with the San Juan County auditor before building-permit issuance.
    • The rental permit must be maintained in good standing.
    “A deed restriction is recorded with the San Juan County auditor prior to building permit issuance, stating all of the following as set forth in subsections (B)(3)(a) through (B)(3)(g) of this section:”

Rules another office applies inside Town of Friday Harbor

Town of Friday Harbor does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Town of Friday Harbor or San Juan County directly.

  • Building permit — Residential construction inside Friday Harbor town limits.
  • Owner-builder exemption — Owner-built residences inside Friday Harbor town limits.
  • Inspections — Residential construction inside Friday Harbor town limits.
  • Certificate of occupancy — Residential occupancy inside Friday Harbor town limits.
  • Minimum dwelling size — Dwellings inside Friday Harbor town limits.
13 more unanswered
  • Minimum lot size
  • Building height
  • Camping on your land
  • Tiny homes
  • Who permits septic
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Subdividing land
  • Building in a floodplain

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Unanswered questions are usually a sign that Town of Friday Harbor publishes no rule on the point, not that none exists. San Juan County’s page lists the county offices to call.

Off-grid gear

Going off-grid in Town of Friday Harbor means bringing your own water and power. The kit we’d start with:

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