ADU Regulations in Blue Lake, California (2026)

Regulations at a glance

Local rules & notes

Ordinance Null and Void: The City's previous ADU regulations were determined by HCD to be 'null and void' due to inconsistencies. The City now explicitly defers to current State regulations. Low Development Impact Fees: City impact fees are currently structured to apply to subdivisions (creation of new parcels), suggesting ADUs may avoid these specific fees. The fees listed are also very low ($232 and $465). Administrative Parking Waiver: The City Planner can administratively waive off-street parking requirements for residential uses based on criteria such as historical nature, design constraints, or proximity to transit.

For the official ordinance and latest updates, check your city or county planning department.

Frequently asked questions about ADU regulations in Blue Lake

• What is the maximum ADU size in Blue Lake, California?

  In Blue Lake, the maximum ADU size is typically 1200 square feet, depending on whether the unit is attached or detached. California state law allows up to 1,200 sq ft for detached ADUs and 800 sq ft for attached in many jurisdictions; Blue Lake may follow state defaults or have local limits. Verify with Blue Lake planning for your specific lot.

• What are the setback requirements for ADUs in Blue Lake?

  In Blue Lake, typical setback requirements are 4 feet from the side property line and 4 feet from the rear. These may be reduced to 4 feet under California Government Code § 65852.2 where applicable. Check with Blue Lake planning for overlay zones or design standards that could affect your site.

• What is the maximum height for an ADU in Blue Lake?

  In Blue Lake, the maximum height for an ADU is generally 16 feet. State law often allows up to 16 feet for detached ADUs and up to 25 feet when within 4 feet of the property line in some cases. Confirm with Blue Lake or county planning for your zone.

• Is ADU approval ministerial in Blue Lake?

  In Blue Lake, ADU approval is typically Ministerial (by-right) per Gov Code §65852.2. Ministerial (by-right) review means the city must approve qualifying applications without discretionary review, per California Gov Code § 65852.2. Your project must still meet objective standards; Blue Lake planning can confirm the exact process.

• Are there parking requirements for ADUs in Blue Lake?

  In Blue Lake, parking for ADUs is generally Often waived per state law; check local ordinance. California law often waives parking for ADUs within a half-mile of transit or in certain historic districts. Check with Blue Lake planning for your address.