San Gabriel Valley
Building Design &
ADU Plans in San Gabriel
San Gabriel has seen increasing residential development, including a significant number of ADU projects. We’ve worked extensively in the city and understand their building department’s plan check requirements. San Gabriel’s mix of older and newer neighborhoods creates a range of project types — from garage conversions in established areas to ground-up ADU construction on larger lots.
Why San Gabriel Clients Work With Us
We handle the full design and permitting process for San Gabriel projects, including zoning feasibility, site planning, construction documents, and plan check correction responses.
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 San Gabriel’s building department applies it.
San Gabriel’s older housing stock frequently presents opportunities for garage conversion ADUs and additions to existing structures.
Our Services in San Gabriel
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 San Gabriel Project
Free consultation. We’ll evaluate your property, discuss feasibility, and give you a clear picture of timeline and cost. No pressure, no obligation.