1. West Coast Building and Design

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West Coast Building and Design

5.0 (18 reviews)
Open • Open 24 hours

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Services - West Coast Building and Design

Detached garage construction

Guest house or ADU construction

New story addition

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Recommended Reviews - West Coast Building and Design

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I recommend West Coast Building and Design. We selected West Coast Building and Design to demolish an existing detached garage and build a custom, Spanish style, 2-story structure with a garage on the first floor and ~1,000 sq foot grandparent's suite on the second story. It was a complicated build and we are incredibly happy with the results. Not only are we happy with the results, Rene stayed on budget and was great at communicating, reasonable and helped guide us through the process. He performed the services requested with quality work and provided great value.

Catherine C.

I hired West Coast Building and Design to build a multi-generation complex for my family.  This review is part 1 of 3 projects.  The first project was for a 1200 square ft ADU where I would live.  When we first started the ADU the projection for completion was 6 months.  Unfortunately, we were just at the tail end of the pandemic and there were many delays from the city, SDG&E, supply chain issues and an unusually very rainy season. I'm grateful to have had Rene as the builder because he found ways to work around some of these issues.  He listened to what I wanted - even if it meant changing and redoing a few things.  I am now living in my beautiful home.  I look forward to Rene starting on the next project: converting a garage into my disabled son's sensory/OT room.

Front of the house
Pritpal P.

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. Very competitive in their pricing for what they deliver, and never cut corners when it comes to the workmanship or materials they use. I shopped around before I signed the contract with them as none of the other contractors responded in the manner and professionalism as Rene Rivera. If you are considering building a home, or an addition, I highly recommend Westcoast Design as you will not be disappointed.

824 Sapphire Street San Diego interior

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 architecht and interior decorator. Moreover, he eats any cost overruns.

Before
Monique P.

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 weren't the cheapest, but you get what you pay for! They were very reasonable and professional. I will definitely hire them again for future projects!

ADU. (Granny Flat)
Aurora I.

If you're looking for a great value and great costumer service, This is the company for you! They just finished building my ADU 2 bedroom 2 bathroom kitchen dining and living room (open concept) Rene is always a phone call away. Their work speak for it self.

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. I am not a very trusting individual but Rene earned my trust. I would definitely and most strongly recommend this company for any building project.

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Ask the Community - West Coast Building and Design

Need recommendations for builders who can give an estimate of developing a land and build a house?

West Coast Building And Design 619-823-5763… 

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Review Highlights - West Coast Building and Design

“We just completed our ADU and wanted to say thank you to Rene and his team at West Coast Building and Design.”

Mentioned in 14 reviews

Read more highlights

JPH General Contractor - Super happy customer here! JPH Construction did a phenomenal job on our historic home bathroom remodel! #greatcontractor #hireJPHtoday

JPH General Contractor

(23 reviews)

I was in need of someone to reassemble my bathroom after a minor mold problem came up. This job…read moreincluded replacing 10 sqft of subflooring, replacing a toilet flange, replacing 10 sqft of laminate flooring, putting the toilet back, and replacing the baseboards in the bathroom. In addition, some drywall in the ceiling below the toilet also needed to be patched and painted. I was overwhelmed with doing this project myself, mostly because I didn't want to mess up the floor and have the toilet rock back and forth. I reached out to JPH and I'm so glad I did. Everyone showed up in masks, were professional, and did a fantastic and fast job. They got this small project done in a day, and the price was extremely reasonable, especially given the quality of the work done. After this experience, I also reached out to JPH for a second project. Last week, they installed a whole home soft water softening system I bought from Home Depot. This job was also done in a day, and I'm very happy with the job. There was a small leak at one of the connections, but they came promptly to come patch that up. Overall, I'm glad to have found JPH--they're the general contractor who will be receiving business from me for years to come.

Came and gave me a quote. Everything was promising and loved the contractor. But when it was time…read moreto get the job started, I was ghosted and didn't receive any call back when I reached out. Unfortunately we had a lot of projects planned for Juan, but like anything (you never know who you're dealing with now a days) hope this helps anybody before you commit.

New Age Design And Build - Backyard Remodel in San Diego

New Age Design And Build

(55 reviews)

Pacific Beach

Our pool was in need of some major repairs due to cracked and missing tiles, worn PebbleTec, and a…read morefew areas where pieces had broken off over time. After seeing an ad on Instagram, I decided to reach out to New Age Design & Build for a quote, along with a few other companies. Their quote was very competitive, and they were able to start the project quickly, which was important to us because we wanted to enjoy the pool during the summer. From start to finish, the entire project took only 10 days. Yotam was our project manager, and he did an excellent job keeping us informed throughout the process. He checked in with me daily to explain what work was being done, answer questions, and offer suggestions for design improvements and additional repairs. We ended up taking several of his recommendations and are very happy with the results. Overall, we were extremely satisfied with the quality of work, communication, and how efficiently the project was completed. The only concern I had was with some exposed rebar in the hot tub that, in my opinion, should have been replaced rather than patched over. NADB assured me that this would not cause any issues and explained that this approach helped keep costs down. While I was initially hesitant, I appreciated their transparency and honesty. We are very happy with our renovated pool and would recommend New Age Design & Build to anyone looking for pool repairs or remodeling.

New Age review came to our home, discussed our project, gave a cost that day ,fair pricing,…read moreprofessional results, amazing value.. excellent professional company.. Highly recommend NAD for any outdoor project

West Coast Building and Design - contractors - Updated October 2026

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