An attached ADU is a secondary living unit that shares at least one wall with the main residence. It includes a separate entrance and all essential amenities like a kitchen and bathroom.
GET A QUOTE
About ADU Pro LA
At ADU Pro LA, we empower homeowners in Los Angeles to expand their living space through smart, code-compliant ADU solutions. Whether it’s a garage conversion, detached unit, or full design and permit service — we bring expertise, care, and precision to every build.
Attached ADU Construction
Expand your home smartly with a fully integrated attached ADU — designed, permitted, and built to meet Los Angeles regulations and your lifestyle needs.
Attached ADU
About the service
Attached Accessory Dwelling Units (ADUs) are a smart way to increase your property’s living space without the need for a separate structure. These units are seamlessly built onto your existing home, often sharing a wall or being added as a new wing, and are fully functional living quarters with kitchens, bathrooms, and separate entrances if desired.
At ADU Pro LA, we specialize in designing and building attached ADUs that meet California's evolving building codes while complementing your home’s architecture. Whether you’re planning for extended family, a rental opportunity, or a private office, our team ensures comfort, compliance, and top-tier craftsmanship at every step.
Why choose us
We bring decades of local experience, in-depth knowledge of Los Angeles ADU regulations, and a commitment to delivering turn-key attached units that enhance property value and functionality.
01
Expertise in LA Zoning
We understand the nuances of setback rules, floor area limits, and fire regulations for every Los Angeles neighborhood.
02
Integrated Project Management
From initial consultation to final inspection, our team handles design, permits, engineering, and construction.
03
Cost Transparency
No surprise fees — just clear pricing, detailed timelines, and complete communication throughout the process.
04
Post-Build Support
Even after construction is complete, our team remains available for maintenance, upgrades, and assistance.
Services offered
- Custom Design Plans: Architectural plans tailored to your home’s footprint and your ADU goals — including privacy, access, and style.
- Permit Acquisition: We handle all city paperwork, plan check corrections, and required clearances with LADBS and utility providers.
- Full-Service Construction: Complete build-out including foundation work, framing, roofing, plumbing, electrical, insulation, and finishes.
-
What is an attached ADU?
-
How long does it take to build an attached ADU?Depending on the scope, design approval, and permits, construction typically takes 4–6 months from start to finish.
-
Can I rent out my attached ADU in Los Angeles?Yes! As long as it meets code and safety requirements, attached ADUs can be rented long-term. Short-term rentals may have restrictions depending on your zone.
-
Will an attached ADU increase my property taxes?Yes, but only the value of the ADU is reassessed — not your entire property. The tax increase is generally minimal compared to the value added.
-
Do you offer financing or work with lenders?Yes, we partner with ADU lenders and can connect you with financing options, including renovation loans, HELOCs, and construction loans.