San Gabriel Valley
Building Design &
ADU Plans in Hacienda Heights
Hacienda Heights is an unincorporated LA County community, which means projects here go through the County of LA’s building and safety department rather than a city building department. We have extensive experience with LA County plan check and understand the county’s specific requirements, forms, and review processes.
Why Hacienda Heights Clients Work With Us
Unincorporated communities like Hacienda Heights offer the advantage of county-level ADU provisions, which can be more favorable in some cases than individual city standards. We know how to leverage these provisions for our clients.
With over 1,500 residential and commercial projects completed across Los Angeles County in the last decade, we bring a depth of experience that most firms can’t match. We don’t just know the California building code — we know how Hacienda Heights’s building department applies it.
As an unincorporated LA County area, Hacienda Heights projects go through the County building department — where we have extensive submission history.
Our Services in Hacienda Heights
ADU Design
Detached ADUs, garage conversions, junior ADUs, and two-story units. Permit-ready plans designed for Alhambra’s specific requirements.
Custom Home Design
Ground-up residential design from modern to traditional. Complete construction documents engineered for permitting.
Additions & Remodels
Room additions, second stories, kitchen and bath redesigns, whole-home renovations. Seamless integration with existing structures.
Plan Check Corrections
Plans stuck in review? We take over stalled projects, resolve code issues, and get permits approved.
Legalize Unpermitted Work
As-built documentation, code compliance analysis, and permit legalization for existing unpermitted additions and conversions.
Commercial Tenant Improvements
Restaurants, retail, offices, and industrial spaces. Functional commercial environments that meet code and reflect your brand.
Start Your Hacienda Heights Project
Free consultation. We’ll evaluate your property, discuss feasibility, and give you a clear picture of timeline and cost. No pressure, no obligation.