ADU Design

Custom ADU design services in San Diego.

+1-619-330-8185

TRUSTED BY SAN DIEGO HOMEOWNERS

Our Credentials & Reviews

★★★★★

5.0 Rating

★★★★★

5.0 Rating

Preferred Contractor

A+ Rating

★★★★★

5-Star Business

NRCA Member

Recent Project

Completed modern detached ADU in San Diego backyard

Before

After

Detached 400 sq ft ADU — San Diego backyard, permits included

Thoughtful ADU Architecture

Peak Builders provides comprehensive ADU design services throughout San Diego. Good design is crucial for ADUs—every square foot must be optimized. Our designs balance livability, aesthetics, and code compliance to create spaces people actually want to live in.

Space-efficient floor plans

Matching architectural style

3D visualization options

Permit-ready drawings

Energy-efficient design

Peak Builders & Roofers of San Diego provides comprehensive ADU design services throughout San Diego. Good design is crucial for ADUs—every square foot must be optimized. Our designs balance livability, aesthetics, and code compliance to create spaces people actually want to live in.

We create designs that maximize natural light, provide adequate storage, and feel spacious despite compact footprints. Our ADU plans address San Diego's specific zoning requirements including setbacks, height limits, and parking. You receive permit-ready drawings and 3D visualizations.

Our Work

ADU Design Services in San Diego — Project Photos

Garage conversion to ADU interior San Diego

Why Choose Us

Quality Craftsmanship You Can Trust

With over 15 years of experience serving San Diego homeowners, we bring expertise, quality materials, and exceptional craftsmanship to every project. Our team is fully licensed, bonded, and insured for your peace of mind.

Your project, our proven process.

Free Consultation

We visit your home, discuss your vision, and provide a detailed estimate with no obligation.

Design & Planning

Our team creates custom plans and handles all permits with the city of San Diego.

Expert Construction

Licensed craftsmen bring your project to life with quality materials and workmanship.

Final Walkthrough

Inspection, quality assurance, and warranty coverage ensure your complete satisfaction.

Design Services

Concept Design

Initial layout options, feasibility assessment, and style exploration.

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Full Design Package

Complete architectural drawings ready for permit submission.

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3D Visualization

Photorealistic renderings showing finished ADU inside and out.

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Pre-Designed Plans

Customizable plans from our portfolio of proven ADU designs.

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Testimonials

Real projects. Real results.

Hear from San Diego homeowners who trusted Peak Builders with their most important investment.

Sarah M.

Peak Builders transformed our outdated kitchen into a stunning modern space. Their attention to detail and craftsmanship exceeded our expectations.

Kitchen Remodel, San Diego

Michael & Jennifer T.

We hired Peak Builders to finish our basement and couldn't be happier. They handled permits, design, and construction seamlessly.

Basement Finishing, Poway

Robert K.

After a hail storm damaged our roof, Peak Builders made the insurance process easy. They documented everything and installed a beautiful new roof.

Roof Replacement, Chula Vista

Lisa & David P.

Our master bathroom went from dated to spa-like thanks to Peak Builders. The frameless shower and heated floors are exactly what we envisioned.

Master Bath Renovation, Oceanside

James H.

Peak Builders built an ADU in our backyard that's now generating rental income. They navigated San Diego's permit process expertly.

ADU Construction, San Diego

Amanda R.

We bought a 1970s home and Peak Builders helped us transform every room. It's like a brand new house. Amazing team!

Full Home Remodel, Vista

Carlos & Maria G.

Our outdoor kitchen from Peak Builders is the envy of the neighborhood. Built-in grill, pizza oven, and beautiful stone counters.

Outdoor Kitchen, Escondido

Patricia W.

Peak Builders remodeled our kitchen and two bathrooms. Having one contractor for the whole project made everything easier.

Kitchen & Bath Combo, Carlsbad

Thomas & Susan B.

We added a second story to our ranch home. Peak Builders matched the new addition perfectly to our existing home.

Home Addition, Santee

Read All 12+ Reviews

Design FAQs

Design starts with a site assessment — setbacks, utility locations, and zoning rules that constrain what can be built. From there we develop floor plan options, choose materials, and prepare permit-ready drawings. Most design phases take 4–8 weeks before permit submission.

For most ADUs, a licensed designer or architect is required to prepare the permit drawings. We coordinate the design and engineering as part of our full-service ADU process — you don't manage separate consultants.

Yes. Studio, one-bedroom, and two-bedroom layouts are all common. We design around your use case — whether that's rental income, a family member, or a home office — and your lot constraints.

Local zoning sets minimum distances from property lines (setbacks). These determine where on your lot the ADU can sit and how large it can be. We check your parcel against current zoning before any design work begins.

Yes. We match roofline, siding, window style, and exterior materials to the main house. This is often required in historic districts and improves resale value in all neighborhoods.