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Accessory Structures in Coeur d'Alene, ID (2026)

6 verified accessory structures rules for Coeur d'Alene, Idaho, sourced directly from the municipal code and official government pages.

Verified from official government sources

ADU Rules

In the City of Coeur d'Alene, accessory dwelling units are permitted within all Residential and Commercial Zoning Districts. Height runs from eighteen feet for a one story rear-yard unit to thirty two feet inside the principal building envelope, size tops out at eight hundred square feet, and each ADU needs one additional parking space.

Coeur d'Alene Accessory Dwelling Unit Rules

Some Restrictions

Coeur d'Alene Municipal Code § 17.06.660

17.06.660: ACCESSORY DWELLING UNITS; ... BASIC DEVELOPMENT STANDARDS: ... A. Maximum Building Height: ... Maximum building heights for ADUs are: 1. Thirty two feet (32') when built within the building envelope for the principal structure. 2. One story ADU structure: Eighteen feet (18') when built in the rear yard. 3. ADU above a detached garage: Twenty four feet (24') when built in the rear yar...

ADU Impact Fees

In the City of Coeur d'Alene, connecting an accessory dwelling unit to the public sewer triggers a sewer capitalization fee of 2.20 population equivalents per unit, printed as $6,460 in the code's schedule. The development impact fee under Title 14 is a separate charge, and an ADU can be a short-term rental only if the required impact fee is paid.

Coeur d'Alene ADU Sewer Capitalization Fee and Impact Fee Rules

Some Restrictions

Coeur d'Alene Municipal Code § 13.16.010

A. The owners of property connecting to the Coeur d’Alene public sewer system, directly or by connecting to a private system that connects to the City sewer system, except property for which a monthly sewer service charge was being made prior to June 1, 1979, or except property for which a wastewater treatment plant expansion fee has been assessed by a local improvement district, shall be asses...

ADU Owner Occupancy

In the City of Coeur d'Alene, owner occupancy is tied to short-term rental use of an ADU: either the principal dwelling or the accessory dwelling unit must be occupied by a majority owner if a unit is used as a short-term or vacation rental. Owner occupied means the owner's legal residence, with more than six months a year on site.

Coeur d'Alene ADU Owner Occupancy Requirement

Some Restrictions

Coeur d'Alene Municipal Code § 17.06.660

D. Owner Occupancy: Either the principal dwelling unit or the accessory dwelling unit must be occupied by a majority owner of the property if a unit is used as a short-term or vacation rental. "Owner occupied" means that a property owner, as reflected in title records, makes his or her legal residence at the site, as evidenced by voter registration, vehicle registration, or similar means, and p...

ADU Rental Restrictions

In the City of Coeur d'Alene, an ADU used for less than 30-day stays falls under the short-term rental article in chapter 17.08. The owner needs a City permit, must pay the required impact fee for an ADU created after the article took effect, and cannot rent the ADU and the main house short term at the same time.

Coeur d'Alene ADU Rental and Short-Term Rental Limits

Significant Restrictions

Coeur d'Alene Municipal Code §§ 17.06.660, 17.08.1040

L. Short-Term Rentals: If an accessory dwelling unit (ADU) is going to be used for less than 30-day stays, the owner shall comply with the rules of short-term rental requirements in chapter 17.08, article X of this title. ... 17.08.1040: STANDARDS: ... A. Accessory Dwelling Units And Properties With Multiple Dwelling Units: ... ... 2. After the effective date of this article, an ADU may only be...

Shed & Carport Rules

In the City of Coeur d'Alene, a shed or other accessory structure in the rear twenty five feet of a lot sits at least five feet from the side and rear lot lines, or three feet where the roof does not slope toward that line. Accessory structures also carry the district height limits under § 17.06.640.

Coeur d'Alene Shed and Accessory Building Rules

Some Restrictions

Coeur d'Alene Municipal Code § 17.06.425

17.06.425: MINIMUM SETBACK AT REAR AND SIDE LOT LINES: ... Setbacks for accessory structures located in the rear twenty five feet (25') of a lot: A. Side Yard: All accessory structures shall be set back from the side lot line at least five feet (5'). 1. However, an accessory structure may be set back three feet (3') from the side property line provided the roof does not slope toward the side pr...

Tiny Homes

The City of Coeur d'Alene adopts the 2018 International Residential Code with local amendments and turns on Appendix Q Tiny Houses, one of only three appendices the City Council keeps beyond the base text. That adoption line is the only place the municipal code mentions tiny houses, so permits, plan submittals and occupancy classes follow the building code chapter.

Coeur d'Alene Tiny Houses: IRC Appendix Q Adoption

Some Restrictions

Coeur d'Alene Municipal Code § 15.08.005

2. The 2018 International Residential Code (IRC), prepared by the International Code Council, Inc., as adopted by the State of Idaho through the Idaho Building Code Board, together with any amendments or revisions to the IRC made by the Idaho Building Code Board through the negotiated rulemaking process, is adopted with the following exceptions or amendments: Section R101.2. Delete the exceptio...

Looking for Kootenai County county-wide rules?

County ordinances apply to unincorporated areas and may supplement Coeur d'Alene city rules.

Accessory Structures in Kootenai County →