Solar Energy in Ada County, ID (2026)

2 rules for unincorporated Ada County, Idaho.

Verified from official government sources

Note: These county rules apply to unincorporated areas of Ada County. If you live within an incorporated city, that city's own rules apply: see the city list below.

Panel Permits

Rooftop, pole and ground-mounted solar panels are an accessory use in unincorporated Ada County and require a Zoning Certificate from the Planning and Development Director under Ada County Code 8-6-32 before installation starts. The Use Table (8-2-23-2) marks solar as "A1": accessory, certificate required in every zoning district.

Solar Panel Permit Rules in Unincorporated Ada County

Some Restrictions

Ada County Code 8-6-32 (Zoning Certificate)

B. Initiation: A zoning certificate application shall be submitted to the Director. ... E. Decision: 1. The Director shall review the zoning certificate application and shall: a. Approve the application; b. Deny the application; or c. Approve the application with conditions. 2. The Director shall not issue a zoning certificate for any use on a property that violates this Title or on a property ...

Full ordinance details →Official source ↗

Expedited Solar Permitting

Unincorporated Ada County lets a homeowner install solar panels on an existing detached structure through a simple Director-issued zoning certificate, even if the structure itself doesn't meet current zoning rules. No public notice or hearing applies to this permit type.

Solar Panel Zoning Certificates in Ada County

Light Restrictions

Ada County Code § 8-6-32(E)(2)

E. Decision: 1. The Director shall review the zoning certificate application and shall: a. Approve the application; b. Deny the application; or c. Approve the application with conditions. 2. The Director shall not issue a zoning certificate for any use on a property that violates this Title or on a property that contains structures or uses that violate this Title, with the exception that a zoni...

Full ordinance details →Official source ↗

All Ada County ordinances

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