Why West Coast Building and Design are the Best Detached ADU Builders in San Diego!

Looking for the top experts in crafting a detached ADU for your San Diego property? Look no further than West Coast Building and Design, where unparalleled expertise meets the pinnacle of customization and professionalism.

For A Free Estimate Call Now! (619) 823-5763

Detached ADU Builders with Unmatched Expertise in San Diego

We don’t just build detached ADUs; we craft tailored living experiences that resonate with the unique lifestyle and aspirations of our San Diego clients. Our commitment to excellence and dedication to quality set us apart as the leading builders of detached ADUs.

The West Coast Building and Design Advantage

Expert Craftsmanship: Our team brings together the finest skilled professionals, each with a deep understanding of San Diego’s architectural nuances.

Customization at Its Finest: We believe your ADU should be as unique as you are, with bespoke design options tailored to your preferences.

Quality That Lasts: From using top-grade materials to implementing cutting-edge building practices, durability and elegance are at the heart of what we do.

Client-Centric Approach: At West Coast Building and Design, your vision leads the way, infused into every aspect of your detached ADU.

Setting the Gold Standard for Detached ADUs

Building a detached ADU in San Diego is not just about adding space—it’s about creating a sanctuary personalized to your needs. Our seamless blend of design innovation, transparent communication, and impeccable craftsmanship elevates the construction of ADUs to an art form.

The Hallmarks of Our Service

Listening to Your Needs: We prioritize your ideas and desires, ensuring the end result is a perfect reflection of your dream.
Tailor-Made Designs: Our designs are not one-size-fits-all but are meticulously concrafted to match your vision and the San Diego landscape.
Clear Communication: You’re kept in the loop every step of the way, with proactive updates and responsiveness to your feedback.
Exceeding Expectations: We’re dedicated to finishing your project with precision, often achieving results that surpass our clients’ aspirations.

Why San Diego Prefers West Coast Building and Design for Detached ADUs

When it comes to constructing detached ADUs in San Diego, West Coast Building and Design stands out for our passion, precision, and superior client satisfaction. Each project reflects our commitment to enhancing your property with a personalized touch and uncompromising quality.

Discover the Best—Get In Touch

Confidently choose West Coast Building and Design for your detached ADU project and join the ranks of our satisfied homeowners across San Diego. Let’s embark on a building journey that brings your detached ADU dream to life with the highest standards of excellence.

ADU Floor Plans

Livingston 2 Story ADU (2nd Floor)
# Sq. Ft
2 Beds,
2 Baths
Livingston 2 Story ADU (1st Floor)
# Sq. Ft
1 Beds,
1 Baths
Cebulski Companion Unit
1,123 Sq. Ft
3 Beds,
3 Baths
Ceja ADU
800 Sq. Ft
2 Beds,
2 Baths
Friant Residence
579 Sq. Ft
2 Beds,
2 Baths
Del And Kelley ADU
# Sq. Ft
2 Beds,
2 Baths
Sener ADU
# Sq. Ft
2 Beds,
2 Baths
Gonzalez ADU
# Sq. Ft
2 Beds,
2 Baths
Carol Companion ADU
1,197 Sq. Ft
3 Beds,
3 Baths
Panesar ADU
# Sq. Ft
2 Beds,
2 Baths
We Build Your Dream
Start Your Construction Project With Us

Looking for an Affordable ADU Builder or home contractors to build your custom homes or additions in San Diego?

Contact Rene Rivera at West Coast Building and Design today to schedule an appointment.

Client Reviews

I hired West Coast for a concrete slab for a patio. He gave me a quote and started the job within a week. We are happy with the work and it looks great! Everyone who was on our property was respectful and cleaned up after the job was complete. They were very reasonable and professional.

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Monique P.

So happy to have our contractor, Rene Rivera, bring our beautiful Granny Flat to life. It is spectacular!

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E Price

Rene took charge of building an ADU above my garage, and I couldn’t be happier with the result. The quality of his work is top-notch, and it’s clear he takes real pride in what he does. Plus, his pricing was fair and upfront, which I really appreciated. Looking back, my only regret is not getting Rene involved in the design process too.

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Ein

Today I had an amazing talk with Rene at West Coast Building and Design. He was quite informative and gave me some great ideas and help in our situation. I highly recommend this place.

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Tana Miller

Great contractor to work with! Rene built a terrific house for me. It sold in less than 24 hours for 50k above asking price. He is not just a skilled builder but a really nice guy. He also contracts for a fixed price which includes an in house architect and interior decorator

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Martin Bunzl

Best customer service. West Coast was very professional and efficient, on my remodel, definitely recommend them to friends and family.

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Laura Islas

West Coast Building and Design made my first time dealing with redesign and remodel amazing. I will be using them again on my upcoming project.

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Makedah Judah

Our 2 bedroom ADU over the garage we had a great experience with West Coast thank you for all your hard work guys!

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Heart N Solutions Guide

This company did a thorough and detailed job on my investment property, we added a 2 bed ADU. Their prices are affordable and the team is quite knowledgeable we had them fix other issues in our main home.

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Loweta Gonzales

So far, we have had a great experience with West Coast Building & Design. Rene is very knowledgeable about the industry. His knowledge saved us thousands of dollars in extra material. His team is hard-working and persistent. We can’t wait for our home to be built!

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Viridiana Amaya

Connected with Rene from West Coast Building and Design. Communication and estimate were clear and to the point. Rene and his team have successfully built our ADU. Will definitely recommend you to utilize this company.

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Nina Lakhani

Recently I have been wanting to add to my house. After some research I called upon west coast build and design. They were phenomenal, Rene came through in a big way and made sure my vision came to fruition. Including me in the process whenever necessary. I recommend anyone wanting some similar work contact Rene and get what you want done.

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Owen McClish

I worked with Rene on an ADU in La Mesa in 2023. He was on top of all subs, quick to respond, and managed the project like a pro. The ADU turned out great, and we couldn’t be happier with the experience!

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Zach Plumb

I hired Rene to build a 1200sf ADU w/ a 2 car garage. One thing I really liked about Rene is that he is a man of his word. What I really appreciate was his responsiveness to all my communications; even during some very tough situations, he picked up the phone. I am very satisfied with end result. Our parents now have a home they can call their own and they are very happy.

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John S

Working with Rene from West Coast Building and Design has been a great experience. For me, good communication is key when dealing with contractors, and Rene totally nailed it. Rene took charge of building an ADU above my garage, and I couldn’t be happier with the result. The quality of his work is top-notch, and it’s clear he takes real pride in what he does.

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Tran M

Westcoast Building and Design built my ADU, which turned up more like a custom home. This is probably the fastest that I have ever seen such a structure built from ground up. Rene Rivera is a professional contractor with decades of experience and it shows in the workmanship. They are reliable, friendly, and go the extra mile to make certain that you get your dream home built.

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Pritpal P

Very much appreciated working with Rene! He was very communicative and, with the exception of delayed products due to supply chain, his timelines were realistic and spot on. We are thrilled to have our ADU completed by West Coast Building and Design. We would definitely work with him again!

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Alicia Amdahl

Rene at West Coast has got to be one of the most reliable, honest, professional and overall a well put together contractor that I have dealt with in the industry. I have nothing but good to say about him and his company. His work ethic and professionalism are always tip top.

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Violeta D

Rene and his team built our 750 sq ft ADU. They took care of all permits, design, plans, and construction. Our project was quite complex including over 150 ft of trenching operations surrounding our entire main house and navigating the large number of state and local regulations regarding the upgrade of our electrical panel. Rene always displayed the highest level of integrity throughout the project and in the end it came out much better than we thought it would.

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William R

Very professional and quick. The workers get things done either on time or ahead of schedule and always answered any questions I had. They are friendly, fast, and affordable. Whenever someone tells me they want work done, I recommend them.

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Kathrine Mcmorris

Rene Rivera for west coast building and design built a ADU (granny flat, Casita, mother-inlaw suite) in my back yard. He went above and beyond during the height of covid to complete this project. Everything went smooth and fast.

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Isaiah G

Built and ADU for my mother-in-law… she now lives like a queen.

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Shane Miller

If you’re looking for a great value and great costumer service! This is the right company for you! They just finished building our 2 bedroom 2 bath Granny flat. Good communication with Rene, always a phone call away.

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Aurora I

My husband and I hired Rene’ and his team to get our ADU off the ground. This was NOT a small project. It is really a 1,200 sq’ custom home with a 2-car garage that just happens to be on our property. Rene was with us from the start, offering suggestions and working with us in every way. There was a work-ethic and caring attitude across the board. His team was extremely helpful in making our dream a reality.

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Marjie S

Rene took the time to come out to my home pertaining to repairs that are needed. He was extremely thorough, professional and honest with his advice. He did not rush and took the time to listen. Please call West Coast Building and Design, I promise you will be impressed and happy you did!

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Sharon S

He blew us out of the water with his knowledge, timeliness, and of course having a quote within our budget. We could not have been happier with the work Rene and his team completed. Rene was there through the whole process of bringing our vision to life. Whether it was finding ways for us to save money or time managing his team, they got it done.

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Jess G

Rene’s team did our granny flat and did an amazing job. Rene was awesome to work with and gave me the best bid. I’ll be using them for my eventual remodel!

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Babs R

Great guys and great work! Needed my front and back porches, along with some pretty major repairs done to my roof from a bad leak. Called around and these guys gave me a really good quote and could start work ASAP. Finished on time and looks like new!

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Carlos A
Looking to get your ADU project started?

OR Call Rene Rivera in San Diego: (619) 823-5763