San Gabriel Valley
Building Design &
ADU Plans in San Marino
San Marino is one of the most prestigious residential communities in the San Gabriel Valley, with large lots and high architectural standards. The city’s planning department maintains strict design guidelines, and projects here require a level of detail and quality that many firms can’t deliver. We’ve worked with San Marino’s review process and understand what they expect.
Why San Marino Clients Work With Us
San Marino’s large lot sizes create exceptional ADU opportunities, but the city’s design standards require careful attention to architectural character and site planning. We design units that meet both code requirements and the community’s qualitative expectations.
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 Marino’s building department applies it.
San Marino’s design review process evaluates architectural compatibility and quality beyond basic code compliance.
Our Services in San Marino
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 Marino Project
Free consultation. We’ll evaluate your property, discuss feasibility, and give you a clear picture of timeline and cost. No pressure, no obligation.