Beach Builders Custom Homes offers full-service ADU and garage conversion services in Los Angeles and Orange County. From permits to construction, they build granny flats, backyard cottages, and JADUs with smart home tech, earning homeowners $1,200–$1,600/month.

Beach Builders Custom Homes – ADU Contractor in Seal Beach, CA

About Beach Builders Custom Homes

Beach Builders Custom Homes: ADU and Garage Conversion Services

Beach Builders Custom Homes works with homeowners to make use of underutilized space on their property — whether that's a garage, a backyard, or an unused side yard. As an experienced ADU contractor, they help property owners convert these spaces into functional, permitted accessory dwelling units.

An accessory dwelling unit (ADU) is a secondary housing unit located on the same lot as a primary residence. These units can be attached or detached from the main home and go by several names, including granny flats, in-law suites, backyard cottages, and casitas. Under California state law changes that took effect in 2020, restrictions on ADU construction were significantly reduced, making it more accessible for homeowners on single-family zoned lots to add up to two additional units — an ADU and a Junior ADU (JADU) — effectively allowing a property to function as a triplex.

Beyond rental income, ADUs can serve a variety of purposes, including:

  1. Elderly care or in-law housing
  2. Home office or workspace
  3. Guest house
  4. Art studio or music room
  5. Workout or yoga space
  6. Entertainment area

Garage Conversions and Backyard ADU Construction

As a garage conversion contractor and detached ADU builder, Beach Builders Custom Homes manages the entire process from initial consultation through completed construction. Their team includes in-house architects, engineers, designers, and general contractors who handle permitting, city coordination, and construction management.

The process generally follows these steps:

  1. Home Consultation — A consultant visits the property to assess the lot, take measurements, and discuss the homeowner's goals.
  2. Qualification and Agreement — Beach Builders works with the homeowner to determine which program or financing option fits their situation best.
  3. Construction Phase — Permits are pulled, city requirements are addressed, and construction is managed by the in-house team.
  4. Rental Income — Once complete, the ADU is ready for occupancy. Beach Builders can assist with finding qualified tenants and managing the property.

For homeowners in the Los Angeles and Orange County areas, average monthly rental income from an ADU typically ranges between $1,200 and $1,600, depending on location and unit size.

Financing Options and Property Management

Building an accessory dwelling unit can be a significant financial undertaking, with costs potentially exceeding $100,000 depending on the scope of work. Beach Builders Custom Homes offers various financing options, including programs that allow qualified homeowners to move forward with $0 out of pocket through a rent-share arrangement.

In addition to construction, Beach Builders provides property management services — locating suitable tenants, handling lease arrangements, and managing ongoing maintenance. Homeowners who already have a tenant in mind can also work with the team to get that individual placed in the new unit.

All ADUs built by Beach Builders Custom Homes are equipped with smart home technology, which includes features such as smart lighting, HVAC controls, video doorbells, smart locks, and speaker systems — all manageable from a smartphone or tablet.

For homeowners looking to add livable square footage, generate rental income, or accommodate family members, Beach Builders Custom Homes offers a structured, full-service approach to ADU and JADU construction in Southern California.

Services

Beach Builders Custom Homes performs the following services

  • Architecture & Design
  • Permit Specialist
  • Construction
  • Financing & Loans
  • Feasibility & Site Assessment
  • HVAC installation
  • Maintenance contracts

Beach Builders Custom Homes Reviews

Chris Gilman

2025-11-12
"Cant say enough good things about ADU West Coast. Their work quality is top-notch, and their team is extremely knowledgeable. The finished product looks fantastic, and the entire process was smooth and efficient. Communication was clear and consistent every step of the way, and they handled all interactions with local municipalities seamlessly. If you have any ADU needs, I wouldnt look any further ADU West Coast is the team to work with."

Rolly DeVore

2025-11-10
"ADU West Coast is absolutely superb, and I recommend them highly. After purchasing a property which had a 2 car garage that I wanted to covert to an ADU, and a ton of work needed on the main house, I was faced with the rather daunting task of hiring a construction company. Like me, youve probably heard construction horror stories throughout your life, and the thought of undergoing a big project can be scary. I actually discovered ADU West Coast online, and was immediately stuck by their videos and public transparency of their current projects. I contacted their own Cameron Meredith, and decided to give them a go. The project was much more involved than you might think. It included going back and forth with the City of Orange over permits, historical approvals for materials, and more. With every bump in the road and every step of the way, things went as smoothly as you can possibly imagine. I got almost daily updates, and they were as communicative as possible. and the job they did? It came out absolutely beautiful. In fact the gentleman that owns the house next door who is part of the City of Oranges Chamber of Commerce told me Thanks so much for helping raise the worth of my house, and the neighborhood too! That pretty much says it all. If youre looking for peace of mind and excellent craftsmanship, look no further!"

Jordan Haver

2025-11-05
"Working with ADU Westcoast was a great experience from start to finish. Their communication was excellent always clear, honest, and fast. I never felt left in the dark about anything. The quality of their work is first class. The engineering and finish are top-notch, and you can tell they really care about doing things the right way. Everything came together smoothly and quicker than I expected, which was a big plus. The whole team was professional, friendly, and easy to work with. They made the process simple and stress-free, which is rare in construction. If you want great service, great people, and a top-quality ADU, I highly recommend ADU Westcoast. They truly deliver on every level."

Patrick Burwell

2025-03-15
"We recently completed our ADU garage conversion with ADU West Coast. The house is for my mom who was moving down from Sacramento so we were balancing her requests from long distance and our desire to have the house blend in with our current home. Cameron and team were exceptional throught the process and the the project was completed in about 9 months. The actual build did not take long once the permits and drawings were all approved by the city. The actual build was between 4-5 months. The crew, led by their PM, Ruben was also very helpful, giving us ideas and recommedations on how to improve the house. Anytime we found something that needed to be corrected or tweaked they were quick to remedy the issue. We checked out a few ADU companies before deciding on ADU West Coast but found the type of build they offered and their regular communication the right fit for us. Cameron also gave us tours of a few of their projects before we even agreed to sign with them. We would recommend using them, but like any project we do recommend that you are personally involved. Their team was very open to us checking on the progress each day. Also, they were also very good about keeping the exterior clean as much as possible. We've seen other homes where the exterior becomes a dump but Cameron and team were constantly making sure the property didn't become an eyesore while the work was being completed. I would definitely recommend them for your ADU conversion."

jacob woodfield

2023-11-09
"Sharing my review from Yelp - We had the best experience with ADU West Coast. We wanted to convert our garage into an ADU for additional rental income to support our family. But we didn't know where to start. Throughout doing research, I noticed Cameron's informative videos regarding ADU's. His knowledge of ADU's helped our family better understand how it works. So, we decided to reach out! Cameron set up an in-person consultation. Throughout our consultation, Cameron took the time to really understand our needs and why we were building the ADU. Also, that we had a tight budget. He took this all into consideration and gave us a lot of great advice and information. We received our quote and it was right in our budget! We signed the contract and from there ADU West Coast did the rest! It was great because our busy family didn't have the time to manage a project like this. They took care of the plans, drawings, permits, talking with the city, construction etc.. All we needed to do was pay the fees and pick the designs. Our project did take a long-time to complete due to the city being backed up on approving permits and inspection and we had some bumps in the road as you can expect with any project. Nevertheless, ADU West Coast did as much as they could to push the city for us and reassure our confidence in the process. The team at ADU West Coast always made themselves available for us to ask any question big or small just a text or phone call away. And we asked A LOT of questions lol. Our ADU is now complete and the quality of work is impeccable. I definitely recommend going with ADU West Coast. Especially, if this is something new for you! We will definitely be using ADU West Coast for our next ADU project!"

prev next

Top ADU Pros is an independent online directory and is not affiliated with, endorsed by, or representative of any of the businesses listed on this platform. The information displayed on our listings — including services, pricing, and contact details — is sourced from publicly available sources and is provided for reference purposes only. We strongly encourage you to contact the ADU Contractors directly to verify their latest services, pricing, and availability before making any decisions. If this listing is about your business and you don't want this listing, please reach out to us and we'll remove it promptly.

Specifics

Free Consultation Free Site Assessment In-House Architect In-House Engineer Turnkey Solutions

Opening hours

Monday 9:00AM - 5:00PM
Tuesday 9:00AM - 5:00PM
Wednesday 9:00AM - 5:00PM
Thursday 9:00AM - 5:00PM
Friday 9:00AM - 5:00PM
Saturday -
Sunday -

Location

Did we help?

Please let Beach Builders Custom Homes know that you found them on Top ADU Pros to allow us to continue helping others find the best adu contractors.

get in contact