#1 ADU Contractor in Temple City
Custom Builds by Horizon Remodeling

Finding the right adu contractor in Temple City means understanding how state law and local permit realities work together before a single line gets drawn. California consolidated its ADU statutes into Government Code sections 66310 through 66342 in 2024, and those rules shifted again on January 1, 2026. Square footage is now calculated as interior livable space rather than overall building area, and the agency reviewing your application has 15 business days to confirm the submission is complete, then 60 days to approve or deny it. Approval is ministerial, meaning no public hearing and no discretionary design review stands between you and a decision.

Because Los Angeles County contains 88 incorporated cities, the counter you submit to and the staff reviewing your plans change from one city to the next even when the underlying state rules do not. For a property in Temple City, that application goes directly to the City of Temple City, which issues building permits for all work inside city limits. No unusual local overlay applies here, so what governs your project is the state building code and the age of your specific house, both of which we evaluate before we propose anything.

The county’s own ADU ordinance, amended in July 2025, is worth mentioning as a cautionary example. The California Department of Housing and Community Development found it non-compliant with state law in December 2025, partly because it caps detached ADUs on multifamily lots at two where state law permits up to eight. That ordinance covers unincorporated territory, not incorporated cities like Temple City, but it illustrates why a local handout is not always current with the statute.

Temple City’s housing stock grew out of a 1923 townsite and filled in steadily through the mid-century, with the city incorporating in 1960. Most parcels here are flat single-family lots with single-story homes, many still carrying the original closed-off kitchen layout. That configuration shapes where a detached unit can realistically sit, how far utilities need to run, and whether a garage conversion or a new detached structure makes more sense. We walk every parcel and check setbacks, grade, equipment clearances, and utility routes before drawing anything.

State law sets a floor of protections wherever your parcel sits. A local agency cannot limit an ADU below 850 square feet of interior livable space, or 1,000 square feet when the unit has more than one bedroom. Side and rear setbacks cannot exceed four feet. Owner-occupancy cannot be required as a condition of building an ADU. Adding a unit cannot trigger a fire sprinkler retrofit of the main house. And there are no impact fees on a unit of 750 square feet or less. Knowing those protections lets us design to what the law actually allows rather than to outdated assumptions.