Residential Architectural Plans & Building Permits in California
Fast, Accurate Permit-Ready Plans
From custom homes to ADUs to major additions - get complete, permit-ready plan sets designed and delivered by professionals and industry experts, with all architectural, design, and engineering services handled in-house.
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What We Do
We handle every step of the design and permitting process in-house, so nothing falls through the cracks. With EHDM, you get turnkey design and permitting, from concept to city approval. We provide services in all California jurisdictions including Los Angeles County, Orange County, Ventura County, and more.
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Project Types
Residential Projects We Design
From modern custom houses to garage conversions, we deliver precise and code compliant plans that are ready for plancheck and permit approval.
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Our Work
Portfolio
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Design-Build Advantage
How Permits Really Work
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Ideal Form
Who This Service Is For
Design and permitting services structured for projects where professional coordination and regulatory accuracy are essential.
Homeowners planning additions, remodels, or new construction who need professionally prepared, permit-ready drawings
Investors and developers managing residential or small commercial projects requiring predictable approval timelines
ADU clients seeking code-compliant designs and streamlined city approvals
First-time builders who require technical guidance throughout the design and permitting process
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FAQ
How long does the permitting process take?
It varies by city and project type, but our coordinated process minimizes delays and typically reduces review cycles.
Can EHDM guarantee my permit will be approved?
While no one can guarantee a permit, our in-house, fully coordinated team maximizes your chance of first-time approval.
Do you work with ADUs and home additions?
Yes — ADUs, additions, remodels, and ground-up homes are our specialty.
What cities do you serve?
We serve all of Southern California, including Los Angeles, Ventura, Orange County, and surrounding areas.
Do you handle plan check comments and revisions?
Yes. All plan check comments are reviewed, addressed, and revised internally by our architectural and engineering team. This ensures fast turnaround times and avoids miscommunication that can occur when revisions are outsourced.
Will you submit the plans to the city for me?
Yes. EHDM prepares and submits permit packages directly to the appropriate city or county departments and coordinates with plan check officials throughout the review process.
What types of projects do you handle?
We specialize in residential additions, remodels, ADUs, and ground-up new construction, as well as select small commercial projects. Each project is evaluated to ensure it aligns with our full-scope design and permitting approach.
What happens after permits are approved?
Once permits are issued, approved drawing sets are ready for construction. EHDM can continue supporting the project through construction coordination or transition seamlessly into the build phase for design-build projects.
