Modern ADU home in San Diego
5-Star Rated ADU Builder

San Diego's
5-Star ADU
Design + Build

From custom design to permits and construction — we handle your entire ADU project under one roof. No headaches, no runaround, just results.

Licensed & Insured
Design + Build Experts
Permit Specialists
Local San Diego Team
Schedule Free Consultation Get Your ADU Quote

Start Your ADU Project

Free feasibility consultation • No obligation

Your information is 100% private & secure
200+
ADUs Completed in San Diego
5-Star
Google & Yelp Rating
12+ Yrs
San Diego ADU Experience
100%
Design to Build, No Outsourcing
Real San Diego Homeowners

Rated 5 Stars by San Diego
Homeowners Like You

"SDADU handled everything from our initial design meeting to the final walkthrough. The permit process that I dreaded was completely handled by their team — we didn't have to worry about a single form. Our new detached ADU in North Park is absolutely stunning."

Maria R. homeowner North Park San Diego
Maria R.
Detached ADU • North Park, San Diego

"We converted our detached garage into a beautiful 1-bedroom ADU in Chula Vista. The team was transparent about pricing from day one — no hidden fees, no surprises. Communication was excellent throughout. Already collecting rental income!"

Carlos M. homeowner Chula Vista
Carlos M.
Garage Conversion • Chula Vista, CA

"We needed an ADU for my in-laws and had no idea where to start. SDADU walked us through San Diego's regulations, handled the city approval, and built a gorgeous attached unit. The whole process took less time than we expected. Highly recommend!"

Jennifer K. Oceanside homeowner
Jennifer K.
Attached ADU • Oceanside, CA
What We Do

Complete ADU Services,
One Expert Team

From your first sketch to your final walkthrough, we manage every detail so you don't have to coordinate multiple contractors.

Custom ADU Design

Tailored floor plans designed to maximize your lot, match your property's aesthetic, and add real value. Every design is unique to your vision and site.

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Permit-Ready Plans

Our architectural drawings are engineered to meet San Diego's exacting building codes — minimizing revision cycles and accelerating city approval timelines.

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City Approvals & Permitting

We submit, track, and respond to every city department on your behalf. Our deep relationships with San Diego's planning offices mean faster approvals and fewer surprises.

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Full Design + Build Construction

Our licensed construction team executes every project with premium craftsmanship. One point of contact from foundation to final inspection — no subcontractor chaos.

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Garage Conversions

Turn your underutilized garage into a fully permitted, livable ADU. We handle the structural upgrades, electrical, plumbing, insulation, and interior finish work.

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Junior ADUs (JADUs)

California law allows JADUs up to 500 sq ft within your existing home footprint. We design and convert interior space with maximum efficiency and minimal disruption to your daily life.

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Beautiful ADU design and construction in San Diego
200+
ADUs Built in San Diego
Why Choose SDADU

We Don't Just Build.
We Deliver Results.

Full-Service Design + Build — Under One Roof

No juggling architects, contractors, and permit runners. Our integrated team handles everything from first sketch to final inspection.

Deep San Diego ADU Regulatory Expertise

We know San Diego's zoning laws, setback requirements, and ADU ordinances better than anyone. No costly surprises mid-project.

Faster Permit Approvals

Our permit-ready plan packages are engineered to minimize revision cycles. We've developed strong working relationships with local city departments.

Transparent Pricing & Real Timelines

Detailed proposals, clear milestones, and honest schedules. What we quote is what you pay — no hidden fees, no scope creep.

Proven 5-Star Track Record

Over 200 completed ADUs across San Diego County with a consistent 5-star rating on Google and Yelp. Our reputation speaks for itself.

Book Your Free Consultation
Simple & Transparent

Your ADU in 4 Clear Steps

We handle everything — your job is to enjoy the results.

1

Free Consultation

We meet at your property, assess your lot, review local regulations, and discuss your vision and budget. No pressure, no obligations.

2

Custom Design + Plans

Our architects create permit-ready drawings tailored to your property. You review, refine, and approve before anything moves forward.

3

Permits & City Approval

We submit to the city, respond to all department requests, and track your permit status. You won't need to make a single call to a government office.

4

Construction & Final Walkthrough

Our licensed crew breaks ground and builds your ADU to exacting standards. We finish with a thorough walkthrough to ensure everything is perfect.

Start Step 1 — Free Consultation