ADU Regulations in Bellflower, California (2026)

Regulations at a glance

Local rules & notes

Ordinance Null and Void: The State HCD warns that if the local ordinance is not updated, it is null and void, and the agency must apply State ADU Law directly. JADU Owner Occupancy Nuance: Owner occupancy for JADUs is only required if sanitation facilities are shared with the primary structure. Unpermitted ADU Amnesty: Local agencies cannot deny permits for unpermitted ADUs built before 2020 unless there is a health/safety violation.

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

Frequently asked questions about ADU regulations in Bellflower

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

  In Bellflower, the maximum ADU size is typically 850 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; Bellflower may follow state defaults or have local limits. Verify with Bellflower planning for your specific lot.

• What are the setback requirements for ADUs in Bellflower?

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

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

  In Bellflower, 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 Bellflower or county planning for your zone.

• Is ADU approval ministerial in Bellflower?

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

• Are there parking requirements for ADUs in Bellflower?

  In Bellflower, 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 Bellflower planning for your address.