ADU Construction in Los Angeles Built for Comfort, Rental Income and Long-Term Value
Add a high-quality, self-contained living space to your property without the stress of coordinating multiple trades. Book your free in-home consultation to explore the best ADU options for your lot, budget and goals.




Want more space, without moving house?
An ADU (Accessory Dwelling Unit) is a secondary, self-contained home on the same property as your main house. It can be a detached backyard build, a garage conversion, or an attached addition, depending on your layout and local requirements.
Homeowners typically build ADUs to:
- Create rental income and improve long-term financial security
- Add space for family, guests, or multigenerational living
- Build a private home office or studio with a proper kitchen and bathroom
- Increase property value with a legal, permitted living unit
Our ADU construction service in Los Angeles is designed to make the process clear, controlled and well-managed, from early design to final sign-off.
Why Los Angeles Homeowners Choose S & H For ADU Construction
Transparent pricing and budget control
ADU builds involve many moving parts, and that is where costs can creep up. We keep it simple with clear, itemised quotes and proactive conversations about scope, allowances and potential site conditions.
One team that handles everything
You get a single, accountable team that manages your whole ADU project, including:
- Concept planning and 3D modelling
- Architectural coordination and layout planning
- Engineering coordination (as required)
- Permitting support and plan preparation
- Demolition and site preparation
- Foundations, framing and structural work
- Roofing, windows, doors and exterior finishes
- Plumbing, electrical, HVAC and insulation
- Drywall, flooring, tiling, painting and cabinetry
- Kitchen and bathroom installation
- Final finishes, fixtures and snagging
No chasing trades. No gaps in the schedule because one contractor is waiting on another. We manage the sequence properly.
Experienced, certified contractors
ADUs need tight coordination across trades, especially for utilities, waterproofing, ventilation and code compliance. We use experienced, certified contractors and professional project oversight to keep quality consistent.
Design support to prevent decision fatigue
Financing available and seniors discount
We offer finance options on qualifying projects and a seniors discount for eligible clients, making it easier to move forward with a substantial property upgrade.
CUSTOMERS LOVE US
Here's what our satisfied clients are saying
EXCELLENT Based on 53 reviews Posted on Harley SaftlerJune 2, 2025Trustindex verifies that the original source of the review is Google. The S & H crew made my renovation so easy & they gave me a great deal. They've basically been on call for anything I've needed since moving back in. Tom and his team are really as good as it gets. Looking forward to working with them again in the future.Posted on frank garibaldoNovember 11, 2024Trustindex verifies that the original source of the review is Google. Redid our bathroom remodel. Great guy, honest, and dependable. The job was done on time within budget and the results were beyond what we expected. We would definitely recommend Tom for a remodel.Posted on Vince HaNovember 11, 2024Trustindex verifies that the original source of the review is Google. Tom is not only an honest straightforward person, his work is impeccable. He gave great suggestions and really listened to what we wanted. Our bathroom turned out beautifully.Posted on Febelyn BananiaNovember 10, 2024Trustindex verifies that the original source of the review is Google. Tommy dies a very good job with excellent communicationPosted on T. D.November 9, 2024Trustindex verifies that the original source of the review is Google. Great service. Also gave me great tips.Posted on Michael J. BartlettNovember 9, 2024Trustindex verifies that the original source of the review is Google. We were extremely impressed by the level of craftsmanship and skill displayed by this construction company. They worked hard to bring our vision to life, and the final product turned out even better than we imagined. Very dependable and dedicated to their work.Posted on Wendy SandovalNovember 9, 2024Trustindex verifies that the original source of the review is Google. Tommy is a great guy he fixed the all the issues we hadPosted on Lisa KaeseNovember 6, 2024Trustindex verifies that the original source of the review is Google. Loved working with S & H Construction. Reliable, timely and honest.Posted on Donna JaffeOctober 29, 2024Trustindex verifies that the original source of the review is Google. Tommy's guys fashioned us a fabulous new kitchen* wow are we happy!Posted on Falawn NorwoodOctober 26, 2024Trustindex verifies that the original source of the review is Google. Tom was very professional and did great job with his work. I would highly recommend
SEE OUR WORK
See Your ADU Before We Build It
An ADU is a major investment, and you should feel confident in the design before construction begins.
We help you visualise the finished space early with clear layout planning and 3D visuals, so you can make decisions with confidence and avoid costly changes later. You will see how your new unit will flow, how rooms will feel, and how materials and finishes will come together.
What We Include In Your ADU Project

Site assessment and measurement Layout options based on your goals (rental, family, office, studio) Space planning for storage, privacy and natural light 3D visualisations and revisions
Planning and design

Support preparing for permits and approvals Clear scope definition, timeline planning and materials scheduling Coordination across all required trades
Pre-construction and coordination

Site prep, foundations and framing Roofing and weather protection Windows, doors and exterior envelope
Structural build

Plumbing and drainage routed properly Code-compliant electrical and lighting HVAC and ventilation planned for comfort and efficiency
Mechanical, electrical and plumbing

Insulation, drywall and paint Flooring, tiling and trim work Kitchen cabinetry, counters and appliances (if included) Bathroom fixtures, waterproofing and finishes
Interior build-out

Final snagging, clean up and walkthrough A finished, self-contained space ready to live in
Finishing and handover
Whether you want a simple, durable rental unit or a higher-end finish for family living, we tailor the build to your priorities.
Our Process
| STEP 1 | Free in-home consultation | We visit your property, understand your goals, review the space, and talk through the most suitable ADU route: detached, attached or conversion. |
| STEP 2 | Design, 3D visuals and quote | You receive a design concept with 3D visuals and an itemised quote. We refine the plan so it fits your lot, your intended use and your budget. |
| STEP 3 | Planning, permitting and scheduling | We prepare the project roadmap, coordinate key requirements and schedule the build to reduce disruption. You will know what happens when and what you need to decide. |
| STEP 4 | Construction and project management | Our team delivers the build in the right sequence, with regular updates and clear communication. If any unforeseen site issues arise, we explain the options and agree costs before moving forward. |
| STEP 5 | Completion, finishing and clean up | We complete snagging, finish details, clean the site, and walk through the final result with you so you can confidently use or rent out your new space. |
FAQ
Common Questions About ADU Construction
How much does an ADU cost in Los Angeles?
Costs depend on size, type (detached, attached or conversion), site conditions, finishes and utility connections. After the consultation and design stage, we provide an itemised quote so you can compare options clearly.
What type of ADU is best for my property?
How long does an ADU build take?
Can you build an ADU that is suitable for renting out?
Do you handle the full project, including plumbing and electrics?
Is financing available?
LIMITED TIME
15% Off Premium ADU Construction
For a limited period, you can save 15% on premium ADU construction services when you book your free in-home consultation and proceed with your project.