Bolthole Index

Okanogan County, Washington

Zoning, building permits and septic rules in Brewster, Washington

Brewster is a city in Okanogan County, Washington. Brewster adopts its own zoning, so inside its limits Brewster’s rules apply, not the county’s. 6 rules below are quoted from official sources and independently re-checked, most recently on October 24, 2026. Rules for unincorporated land are on the Okanogan County page.

Answers from the rulebook for Brewster

Brewster’s own rules

  • Local zoningPresent (with conditions)

    Land inside Brewster city limits.

    • Uses, bulk, density, and setbacks vary by Brewster use district.
    “The purpose of the use district regulations and standards is to provide a concise reference for determining the specific uses, maximum bulk, maximum density, and setback requirements for each use district.”
  • Zoning districtsPublished (with conditions)

    Brewster city zoning districts.

    • The district use chart lists R-1, R-2, C-1, C-2, HI, PU, and AI.
    “Use District: | R-1 | R-2 | C-1 | C-2 | HI | PU | AI | Remarks”
  • Manufactured homesAllowed (with conditions)

    Designated manufactured homes in the R-1 and R-2 districts inside Brewster city limits.

    • Must comply with minimum design standards.
    • Mobile homes are allowed only in manufactured-home parks.
    “Designated Manufactured Homes | A | A | P | P | P | P | P | Must comply with minimum design standards.”
  • Accessory dwellingsAllowed (with conditions)

    Accessory dwelling units in R-1, R-2, C-1, and C-2 districts inside Brewster city limits.

    • An accessory dwelling must be appurtenant to a one-family dwelling.
    • The use chart designates it as an accessory use in these districts.
    “Accessory Dwelling Units | ACC | ACC | ACC | ACC | P | P | P |”
  • Subdividing landRegulated (with conditions)

    Land division inside Brewster city limits.

    • The official code includes separate short-plat, short-subdivision, and preliminary-plat chapters; operative requirements were not retrieved.
    “Chapter 16.12 SHORT PLATS AND SHORT SUBDIVISIONS”

Rules another office applies inside Brewster

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

  • Minimum dwelling sizeSpecified

    Site-built one-family dwellings in R-1, where one-family dwellings are an allowed principal use.

    • Applies to one- and two-family dwellings constructed or installed on a buildable lot after the effective date of the ordinance codified in Chapter 17.10.
    • The stated measurement is from the exterior walls' outermost surface.

    minimum enclosed area dimensions: 24 feet by 36 feet (Site-built homes constructed in accordance with the Uniform Building Code.)

    “Measured from the exterior walls outermost surface, site-built homes constructed in accordance with the Uniform Building Code shall at a minimum enclose an area twenty-four feet by thirty-six feet.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Brewster or Okanogan County directly.

  • Building permit — Residential construction inside Brewster city limits.
  • Owner-builder exemption — Owner-built dwellings inside Brewster city limits.
  • Building code adopted — Construction inside Brewster city limits.
  • Inspections — Construction inside Brewster city limits.
  • Certificate of occupancy — Occupancy of structures inside Brewster city limits.
13 more unanswered
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Who permits septic
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Driveway access
  • Building in a floodplain
  • Permit fees

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 Brewster publishes no rule on the point, not that none exists. Okanogan County’s page lists the county offices to call.

Off-grid gear

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

These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.

← All of Okanogan County: county rules, score and offices