Ever since I bought my home 11 years ago, with its big sloping backyard, I knew I'd want to develop the unused space someday. I contacted West Coast Building and Design, and we brainstormed together. One year later, we have transformed the space into a beautifully manicured one-bedroom ADU that looks like it should be in a Pottery Barn advertisement. With vaulted ceilings, polished bathroom tile, and sleek matching cabinets and countertops in the kitchen and bath, I almost want to move in to the space myself and rent out my main home instead. Of course with any project of this magnitude, there were hiccups and challenges. Trenching in the utilities was one of several major hurdles. But Rene and his team were always responsive, solution-oriented, and willing to soldier on. I made various changes to the design plans along the way, but these were always accommodated. Special shoutouts to Kevin, Rigo & AJ, as well! You guys went above and beyond, and I'm forever grateful to all of you. I think the before and after photos speak for themselves! read more

See all

I highly recommend using Rene and West Coast D & B for your ADU project. My biggest driver is the honesty and integrity of Rene. I've worked with many contractors in my years and career and found Rene excellent to work with. My project was a little complicated, 2 story 1200 sqft ADU and large garage attached to it, the property is slopped towards the canyon and required additional engineering, which Rene was able to handle. Communication is key, and Rene is always available (text, phone, email or onsite). His crew and licensed sub-contractors were excellent, I was all up in there questioning things and I'm sure bugging them, but they were all understanding and helped me with my inquiries. His pricing is beyond fair, whether it is the original quote or a change order, I never felt like I was being taken advantage of because of an unforeseen situation or change. I am a very picky (and hard to impress) DIYer, and I don't do this review thing very often, if ever, but I felt Rene and his crews deserve a shout out, they really did a fantastic job! Thank you all for your hard work and guidance! read more

West Coast Building and Design - General Contractors Near Me

See all

I had West Coast B&D build my attached ADU and can recommend Rene and crew to anyone considering this type of project. Rene gave a fair price and is honest as well as an all-round good guy. His crews work hard and are friendly, professional and good at their jobs. Rene will design what you want, get it thru planning and permit and deal with the city inspectors. Construction projects can be stressful, and various issues can come up throughout the build. I found it easy to talk to Rene and his crews to make sure the build was exactly as I wanted. I have since used Rene and crew on other projects and am completely satisfied with those jobs as well. read more

West Coast Building and Design - General Contractors Near Me

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. There were several things that went wrong along the way, along with multiple delays during the build, but Rene has come up with the necessary fix. All in all, I am very satisfied with end result. Our parents now have a home they can call their own and they are very happy. Thank you for making our dreams and goals a reality. See you in the next project. read more

See all

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. read more

See all

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. read more

See all

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. read more

See all

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. read more

See all

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! read more

See all

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. read more

See all

I wanted to post a quick follow up. I caught myself thinking about my ADU and the experiences I had getting it built, and now that some serious time has past, and I have really gotten to observe and appreciate the work done by West Coast Building and Design, I figured now would be the perfect time. Three words can describe my experience with them building the ADU on my property. QUALITY, AFFORDABLE, and PROFFESIONAL. When I contacted Rene Rivera at West Coast Building and Design, I was assured right away that this was the organization I wanted to handle building my accessory dwelling unit. Rene is a seasoned veteran when it comes to the building and construction industry. This knowledge and experience was made apparent right away when we discussed ideas and planned for the build. I knew I was in good hands. When the time came to start building, I remember Rene and his crew being very easy to get along with, very in tune with the job at hand, and ready to put to get the job done right. Everyone was great, and it really shined through their work they did. West Coast Building and Design knows how to get a project done quick, on time, and how to keep a schedule. Rene and his team got my ADU done on budget, and the whole experience was affordable! I really appreciate the work done by West Coast Building and Design, all in all the whole process and experience was fantastic. This is the organization you want to build for you! read more

I am a designer and West Coast Building and Design has done a great job on building my clients ADU's and remodels. They are on top of everything and my clients are really happy for the recommendations. read more

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. I recommend him to everyone. read more

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. read more

West Coast Building and Design - General Contractors Near Me

We just completed our ADU and wanted to say thank you to Rene and his team at West Coast Building and Design. After going through the process of finding a contractor we took a chance with him. We found his ad on Craigslist and thought, just call him for a quote. 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. With Covid we found some things difficult to find or order, he gave us suggestions on where to go and what to look for. The unit was finished before the projected date which if you've done any kind of construction, you know is RARE. His partner Brian was great too, he built us the most beautiful open concept kitchen as well as our grand entry. We are looking forward to using them with any future projects. We could not have done it without this group and highly recommend them! read more

See all

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! read more

I don't write reviews unless the quality of service is above and beyond exceptional! 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! THANK YOU, RENE! read more

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!! Thank you so much!!! read more

My husband and I hired Rene' and his team to get our ADU off the ground (we are completing the finish work). 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. Every concern we had, he was with us. Any small issues with sub-contractors along the way, he was on our side and advocated on our behalf. There was a work-ethic and caring attitude across the board. His team was extremely helpful in making our dream a reality. I can honestly say, he has become a friend. read more

Rene is a wonderful person. I called to request an estimate but we are out of his service area. Instead of just saying they don't service our area he helped me reach out to another contractor who he knows and trusts who services our area. Rene is caring, kind and knowledgeable. We are very grateful for his assistance. Most people wouldn't go through the trouble of helping you out for free... Rene did. Thank you West Coast Building and Design for the outstanding customer service. (Russ and Judy) read more