Casita ADU is a San Diego-based full-service ADU builder handling permitting, design, and construction. As a trusted accessory dwelling unit contractor, they manage every project phase, ensuring on-time, on-budget builds for California homeowners.

CASITA ADU, Carlsbad, CA

About CASITA ADU

California's Full-Service ADU Builder: Casita ADU

Casita ADU is a San Diego-based accessory dwelling unit builder that positions itself as a complete, end-to-end ADU company. Their approach is designed to make the entire ADU journey simple, stress-free, and seamless for homeowners. From the very first conversation to the moment the keys are handed over, their dedicated team manages every detail of the process.

As a full-service ADU contractor, Casita ADU covers every phase of a project — permitting, design, structural planning, and construction management. Homeowners don't need to coordinate multiple vendors or navigate complex bureaucracy on their own. Casita ADU acts as a single point of accountability throughout the entire build.

What Services Does Casita ADU Offer?

Casita ADU provides a comprehensive range of services tailored to homeowners looking to add an accessory dwelling unit to their property. Their core service areas include:

  1. Full Permitting Packages: They handle every step of the permitting process, ensuring the project complies with local building codes and zoning regulations. From initial submittals to final approvals, they streamline the paperwork to avoid costly delays.
  2. Design and Structural Plans: Their design team creates functional, aesthetically pleasing plans tailored to the property and the homeowner's lifestyle. The goal is to maximize space, enhance aesthetics, and stay within budget.
  3. Construction Management: As an experienced detached ADU builder and backyard cottage builder, Casita ADU oversees the entire build — coordinating contractors, managing schedules, and maintaining quality control from start to finish.

Whether a homeowner is looking for a granny flat builder, a garage conversion contractor, or an in-law suite builder, Casita ADU's team is equipped to guide the project through every stage. Their process-driven approach ensures projects are delivered on time, on budget, and to a high standard.

For those considering an ADU as a dedicated home office, Casita ADU also supports that use case. A well-designed ADU office provides a physical separation from the main home, reducing distractions and supporting a healthier work-life balance. Their team can tailor the design to suit specific professional needs — whether that means maximizing natural light, incorporating soundproofing, or planning for ergonomic furniture layouts.

The Casita ADU Team and Their Expertise

The Casita ADU team is built around a commitment to client service and specialized ADU knowledge. Their leadership includes professionals with backgrounds in operations, real estate, finance, and strategic growth. Project managers and designers handle the on-the-ground work, including site measurements, design planning, and overall project coordination.

As a proudly San Diego-focused JADU contractor and ADU builder, Casita ADU has developed deep familiarity with local permitting requirements, zoning regulations, and construction standards. This local expertise allows them to anticipate challenges before they arise and keep projects moving efficiently.

Their team-oriented culture also reflects in how they manage projects. Each build is overseen with full accountability, and homeowners are kept informed and involved throughout the process. From the initial site walk to the final inspection, Casita ADU's approach is rooted in transparency and professionalism.

For California homeowners looking to add value to their property, create additional living space, or generate rental income, Casita ADU offers a reliable, experienced, and fully integrated solution as a trusted accessory dwelling unit builder in the San Diego area.

Services

CASITA ADU performs the following services

  • Architecture & Design
  • Permit Specialist
  • Construction
  • Feasibility & Site Assessment
  • 3D renderings & floor plans

CASITA ADU Reviews

Jamie Gilman

2025-08-12
"Casita ADU was amazing, thank you Winston! Constant communication and coordination with the General Contractor, Gilberto Estrella who was hands on!, the engineer, county planners and so much more. Winston stepped in to push my plans through. Thank you Winston, Sondra you rock! and your Team. I highly recommend Castia Adu, super satisfied, happy client."

Mei Duong

2025-07-21
"Back in 2022, I started working with Lisa from ADU GURUS on a plan to build four 2-bed, 2-bath units in San Diego. The estimated cost was around 853K, and things were going fine at first. Eventually, she passed my project over to Winston Bodkin, and thats when things really started to click. Winston and I connected right away funny enough, our kids share the same birthday, just a month before we met. That personal connection really helped, but what stood out most was how helpful, responsive, and thorough he was from the beginning. He walked me through what I needed for permitting and made it all a lot more manageable. A few months later, in December 2022, I decided to change course and go with two units instead of four to bring the cost down. That meant redoing some of the plans and starting a new permit process. Around the same time, Winston was leaving ADU GURUS to start his own company Casita ADU. Even with that big transition, he didnt miss a beat. Heres the part that really blew me away: Winston took on the new permitting process on his own, without charging me anything. All I paid were the architects fees and the actual city permit costs. He handled everything else coordinating with the architect, dealing with the city, and making sure the project stayed on track. He did all the heavy lifting and never made me feel like I was on my own. On top of that, I also had the pleasure of working with Sondra Hooley, who was just as kind and professional. Together, they made a complicated process feel way more doable. If youre building an ADU and want someone who genuinely cares, knows their stuff, and wont nickel and dime you I highly recommend reaching out to Winston at Casita ADU. Im incredibly grateful I had him in my corner."

Heather Sandison

2024-11-26
"Winston and the team at Casita ADU is a real class act. We chose Casita, because they were personable, confident, and were really the first team we talked to who assured us that our project was doable with our budget. The architectural designer that they set us up with, Donna, did an incredible job of patiently working with us to create our dream ADU. Donna and Winston were great through the permit process, responding to corrections quickly and keeping us well in the loop. We received our permits in just about 5 months, and there is no way we could have done it without their knowledge and guidance. They also set us up with our GC, spearhead construction, who so far have been really wonderful and within our budget! We have just broken ground and cant wait to see the final product. Overall, Winston and his team have been really devoted to our project, communicative with us, and respectful of our time and budget. If you are looking for someone to help you along this crazy journey, Casita is a wonderful choice!"

Asako C

2024-08-22
"My husband and I went with Casita ADU for a garage conversion to a 1-bedroom ADU for my mother. We had been contacting various ADU companies and contractors on-and-off for over a year and were starting to lose hope that we couldn't afford this project, and felt companies were overcharging for a fairly simple conversion. Winston was referred to us by a close friend who personally knew a family going through a similar project and were really happy with the result. From the time I reached out to Winston, things moved forward quickly thanks to his promptness. He never rushed us, but provided us with clear next steps, which moved forward quickly. He even showed us some current projects in-person in various stages of development so we could see what to expect, before signing a contract. Winston is a trustworthy, hard-working person and we really enjoyed working with him from beginning to end. He was always available to answer questions and regularly updated us and appeared on-site to check in on the progress of our project. I can't recommend him more!"

McEachern Marc

2024-04-29
"I cant say enough about the service honesty and value that Winston and his team provided to build our ADU. Our project involved attaching the unit to the house. We initially went with a design firm that really did a poor job on the design and many errors in permitting. Winston with his extensive metwork was able to solve the permitting after close to one year of delays with the previous design firm . The construction crew that he works with was incredible. Very detailed communication was great. Payment method was exactly what we wanted having been burned by previous contractors. We required a lot of customization since it was for my parents and I found no pushback or inflated cost for doing doing the customized work. We did a lot of the buying for the customized pieces and they installed it, crediting us on the purchases. They are very knowledgeable about the inspection process and told us what we should not do to risk failing inspection. Lastly, they did what they said they would do, without fail, on time and the price was the extremely competitive with a quality of workmanship that I did not expect. For example, we bought solid core European doors that required exact framing and installation. It looks great and no mistakes. They also installed custom folding patio doors and windows that required more work and attention to detail and we installed 3 solatubes that required more work. Our kitchen was from Ikea and they assembled everything from scratch. This required days more work along with the waterfall Island. I have included pictures since it turned out so goods. Attached are pictures. Dont mind the mess, we are still working the next steps to finish."

Specifics

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

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