ADU Permits

ADU permitting assistance 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

Expert ADU Permit Navigation

Peak Builders manages ADU permitting for projects throughout San Diego. San Diego has become increasingly ADU-friendly, but the permit process still requires careful navigation of zoning codes, building requirements, and inspections. We handle it all.

Zoning feasibility analysis

Complete permit applications

Plan review management

Inspection coordination

Certificate of occupancy

Peak Builders & Roofers of San Diego provides professional adu permits services throughout San Diego. Our experienced team delivers quality workmanship and reliable results for every project. We understand the specific needs of San Diego homes and tailor our approach accordingly.

We stand behind our work with clear communication, fair pricing, and attention to detail. Every project receives the same level of care, from initial consultation through final walkthrough. Your satisfaction is backed by our warranties and responsive service team.

Our Work

ADU Permits 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.

Permitting Services

Feasibility Study

Analysis of your property's ADU potential under current zoning.

Get a Free Quote

Permit Package Preparation

Complete architectural and engineering drawings for permit submission.

Get a Free Quote

Permit Management

Full-service permit application, plan review responses, and approval.

Get a Free Quote

Legalization Services

Help bring unpermitted units into compliance with current codes.

Get a Free Quote

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

Permit FAQs

Every ADU requires a building permit covering structural, electrical, plumbing, and mechanical work. Depending on location, additional review may apply — CEQA exemption verification, coastal zone review, historic district approval. We handle all permit submissions.

Typical permit timelines run 3–6 months for a standard detached ADU. Coastal Zone properties and historic districts add time. Some jurisdictions offer expedited ADU review — we use these programs when available.

Applications can be returned for corrections (missing information, non-compliant design) but rarely outright rejected when the project meets zoning requirements. Most rejections are correctable. California law limits many local restrictions on ADUs.

Not always required, but often preferred for rental ADUs so the tenant pays their own utilities. Separate metering adds cost and requires utility company coordination. We advise on the tradeoff based on your intended use.

Unpermitted ADUs create title, insurance, and resale problems. They can also be ordered demolished. We only build permitted ADUs — it's the only path that protects your investment long-term.