Accessory Structures in Bonner County, ID (2026)
3 rules for unincorporated Bonner County, Idaho.
Verified from official government sources
ADU Rules
In unincorporated Bonner County, Idaho, an accessory dwelling unit is capped at 900 square feet and two bedrooms, needs one additional off street parking space, and is limited to one per property. It must have a separate outside entrance and follows the same setbacks as a regular dwelling unit.
Accessory Dwelling Unit Rules in Unincorporated Bonner County, Idaho
Some RestrictionsBonner County Revised Code § 12-490
A. Intent: 1. To provide affordable housing opportunities throughout the county. 2. To limit the visual and physical impact of an accessory dwelling unit on surrounding properties and the local infrastructure. B. Standards: 1. Accessory dwelling units shall not exceed nine hundred (900) square feet. 2. One additional off street parking space shall be required for an accessory dwelling unit. 3. ...
Shed & Carport Rules
In unincorporated Bonner County, Idaho, a detached storage shed, playhouse, carport, shop or garage with up to 1,080 square feet of floor area goes through a small structure application on a Building Location Permit form filed with the Planning Department. Detached sheds up to 400 square feet are excepted from the structure definition but still answer to Title 12 land use standards.
Shed and Accessory Building Rules in Unincorporated Bonner County, Idaho
Some RestrictionsBonner County Revised Code § 11-104
A. A complete Building Location Permit application shall be filed with the Planning Department. The small structure application shall be completed on a Building Location Permit application form provided by the Planning Department. B. A small structure shall meet the following requirements: 1. A detached non-habitable, accessory structure used as a tool or storage shed, playhouse, carport, shop,...
Tiny Homes
Unincorporated Bonner County, Idaho has no separate tiny home category. Its zoning definitions fold tiny houses into the term recreation vehicle, and section 12-496 governs how a recreation vehicle works as a dwelling unit: a building location permit, residential setbacks, and a cap of one or two units per lot depending on lot size.
Tiny Homes in Unincorporated Bonner County, Idaho
Some RestrictionsBonner County Revised Code §§ 12-496 and 12-818
A. Dwelling Unit, Recreational Vehicle. ... 1. Limited to one (1) per lot or parcel for lots or parcels less than one (1) acre in size, or limited to two (2) per lot or parcel for lots, or parcels greater than one (1) acre in size without respect to density. 2. Each recreational vehicle dwelling unit requires a building location permit. 3. Shall meet all residential building setbacks. 4. Each r...
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