ADU Regulations in Wasco, California (2026)

Regulations at a glance

Local rules & notes

Primary Residence STR Loophole: While the ADU cannot be used for short-term rentals, the commission clarified that an owner can move into the ADU and then use their primary residence as a short-term rental. Garage Conversion Setback Restriction: Unlike many jurisdictions that allow conversion of non-conforming garages, Hood River explicitly prohibits conversion if the existing structure does not meet current setbacks. Occupiable Space Definition: The city uses a specific 'pressure boundary' definition for floor area, which can exclude significant portions of a structure (like attics or crawlspaces) from the 800 sq ft limit.

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

Frequently asked questions about ADU regulations in Wasco

• What is the maximum ADU size in Wasco, California?

  In Wasco, the maximum ADU size is typically 800 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; Wasco may follow state defaults or have local limits. Verify with Wasco planning for your specific lot.

• What are the setback requirements for ADUs in Wasco?

  In Wasco, 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 Wasco planning for overlay zones or design standards that could affect your site.

• What is the maximum height for an ADU in Wasco?

  In Wasco, 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 Wasco or county planning for your zone.

• Is ADU approval ministerial in Wasco?

  In Wasco, 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; Wasco planning can confirm the exact process.

• Are there parking requirements for ADUs in Wasco?

  In Wasco, parking for ADUs is generally false. California law often waives parking for ADUs within a half-mile of transit or in certain historic districts. Check with Wasco planning for your address.