Orange County
Building Design and Permit Plans in Santa Ana
In Santa Ana the record is the project. The City keeps the primary house and the ADU on separate plan-check records with their own addresses, and a set that does not match itself across both records stops. Our Santa Ana work is ADUs, in the city and on county-reviewed lots with a Santa Ana address.
Our Work in Santa Ana
An ADU reached approved plans in November 2025 after the City reassigned the primary and ADU addresses and processed the two records separately; a footing revision followed in March 2026. On a county-reviewed lot with a Santa Ana address, Orange County Public Works returned second-review comments with sewer and fire processed separately, and we revised the set and asked the County to reopen its portal for the resubmittal. A 2024 ADU and remodel set was reviewed and marked up before submission.
How review works in Santa Ana
City Planning and Building handle ADUs and addressing inside the city; Orange County Public Works reviews unincorporated lots, with sewer and fire processed on their own.
What comes up most: matching scope and addresses across the separate records, and resubmitting the complete corrected set rather than the changed sheets.
Our Services in Santa Ana
ADU Design
Detached ADUs, garage conversions, junior ADUs, and two-story units. Permit-ready plans prepared for Santa Ana’s specific requirements.
Custom Home Design
Ground-up residential design from modern to traditional. Complete plan sets prepared 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.
Duplexes, Triplexes & Fourplexes
Duplexes, triplexes, and fourplexes, up to four units and two stories. Density analysis and code-compliant design.
Start Your Santa Ana Project
Free consultation. We’ll review your project and the permit path, then quote a flat fee in writing. No pressure, no obligation.
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Service Area
Los Angeles County and Orange County
Pasadena · Arcadia · Glendale · Long Beach · and 80+ more cities
Availability
Mon – Fri, 9am – 6pm
Weekends by appointment