ADU Regulations in La Puente, California (2026)

Regulations at a glance

Local rules & notes

Non-Compliant Local Ordinance: The City retains an outdated ADU ordinance (18-951) on its books but has informed HCD it intends to use State ADU Law exclusively. HCD has requested the City repeal the ordinance to avoid confusing applicants.

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

Frequently asked questions about ADU regulations in La Puente

• What is the maximum ADU size in La Puente, California?

  In La Puente, 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; La Puente may follow state defaults or have local limits. Verify with La Puente planning for your specific lot.

• What are the setback requirements for ADUs in La Puente?

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

• What is the maximum height for an ADU in La Puente?

  In La Puente, 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 La Puente or county planning for your zone.

• Is ADU approval ministerial in La Puente?

  In La Puente, 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; La Puente planning can confirm the exact process.

• Are there parking requirements for ADUs in La Puente?

  In La Puente, 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 La Puente planning for your address.