San Gabriel Valley
Building Design &
ADU Plans in Arcadia
Arcadia has seen a major wave of residential development over the past decade — tear-downs, new construction, and increasingly, ADU projects. The city’s building department processes a high volume of applications, and their plan check examiners are thorough. We’ve submitted plans for custom homes, ADUs, and remodels throughout Arcadia and understand their specific requirements for setbacks, lot coverage, and construction documents.
Why Arcadia Clients Work With Us
Arcadia’s R-1 zones have specific development standards that affect ADU sizing and placement. We handle the zoning analysis, setback calculations, and full construction document packages that Arcadia’s plan check requires — including their energy compliance and structural coordination 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 Arcadia’s building department applies it.
Arcadia’s building department has specific formatting and documentation requirements that differ from neighboring cities like Monrovia and Sierra Madre.
Our Services in Arcadia
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 Arcadia Project
Free consultation. We’ll evaluate your property, discuss feasibility, and give you a clear picture of timeline and cost. No pressure, no obligation.