• Home
  • About
  • Our models
  • More
    • Home
    • About
    • Our models
Get in Touch
  • Home
  • About
  • Our models
Get in Touch

Turnkey Affordable ADU Designs, Permitting & Construction in Los Angeles.

Turnkey Affordable ADU Designs, Permitting & Construction in Los Angeles. Turnkey Affordable ADU Designs, Permitting & Construction in Los Angeles. Turnkey Affordable ADU Designs, Permitting & Construction in Los Angeles.

Welcome to 310 ADU, the premier woman-owned architectural firm specializing in modern, high-end accessory dwelling units across Los Angeles County and Southern California. Our goal is to help you expand your living space with a truly turnkey ADU solution, managing your project from the initial architectural design and LA permitting through final construction and keys. Experience luxurious backyard living, simplified with our home additions.

Modern minimalist small house with large glass windows and wooden deck.
Modern two-story house with wooden accents and a balcony.
Modern small house with large windows and warm lighting, surrounded by plants.
Modern kitchen and dining area with wooden cabinets and cozy seating.
Bright, modern living space with wooden accents and cozy seating.
Modern open-plan living room and kitchen with cozy seating and outdoor access.

Our Signature Models

Discover the ideal accessory dwelling units in Los Angeles to expand your living space. Stop sifting through complicated plans; inspired by efficiency, 310 ADU presents three meticulously designed home additions that are optimized for space, style, and cost-effectiveness. Each model features premium finishes and high-end appliances.


Pricing starts from $160,000

#

Studio ADU

#

1-Bedroom ADU

#

2-Bedroom ADU

The 310 ADU Turnkey Process

H2: Our 5-Step Turnkey Process: Effortless ADU Build in LA. We handle every step of your project involving accessory dwelling units, ensuring quality, compliance, and peace of mind. Our full service is 100% Turnkey, allowing you to expand your living space with ease through our expertly managed home additions.

Two professionals reviewing house plans outside a suburban home on a sunny day.

Site Evaluation & Feasibility Study

Understanding Your Property's Potential. We start with a complimentary on-site review of your lot, garage, or backyard space. Our team assesses zoning overlays, utility access, and code constraints to determine the best type of accessory dwelling units that can help you expand your living space, whether it's a detached new construction, garage conversion, or two-story build. This first step is crucial to prevent costly design mistakes later on, especially when considering home additions.

Architects reviewing blueprints and 3D house design on a computer.

Design & Architectural Planning

Custom ADU Designs and Code Compliance.


Once feasibility is confirmed, our in-house design team creates accessory dwelling units tailored to your goals. Whether it's a modern studio or a two-bedroom rental, we balance livability and aesthetics while ensuring strict Title 24 (Energy) and CalGreen (Green Building) compliance. These home additions allow you to expand your living space effectively. We provide detailed 3D renderings and precise architectural plans to help you visualize the outcome.

Professional woman reviewing architectural plans in a modern office.

Permitting & Legal Management

Expert Navigation of LADBS and Los Angeles Permitting for Accessory Dwelling Units.


Permitting in LA is notoriously complex, especially when it comes to accessory dwelling units. That’s why our legal-focused permitting team expertly navigates every detail, including plan checks, addressing LADBS corrections, securing parking exemptions, and obtaining the certificate of occupancy. We also help you expand your living space with home additions by monitoring city code updates to keep your ADU project 100% compliant and on schedule.

Two construction workers review plans on a tablet at a building site.

Construction Management

Quality Build from Foundation to Finish.


Once your permits are approved, we mobilize our experienced crews to help you expand your living space with expertly crafted accessory dwelling units. From foundation to finish, every phase of your home additions project is managed for quality, schedule, and code compliance. Your dedicated project manager provides transparent updates, coordinates all trades, and ensures the highest level of craftsmanship on your new ADU construction.

Two people showcasing a modern kitchen with white cabinetry and stainless steel appliances.

Final Inspection & Handover

Move-In Ready with Guarantees. When construction wraps, we prepare your unit for final inspection, address any last touches, and walk you through your new fully-finished accessory dwelling units. We stand behind our work with a satisfaction guarantee and provide all necessary legal documentation for your peace of mind and resale confidence, ensuring that you can expand your living space or consider it as a valuable home addition.

Discuss Your ADU Project

Why Los Angeles Chooses 310 ADU

Local Expertise in Los Angeles ADU Design and Construction.  


We are more than just an architectural firm; we are your local partners committed to enhancing LA properties with innovative accessory dwelling units.  


Woman-Owned & Local: Deeply invested in the communities we serve across Southern California, we understand the unique needs of our neighborhoods.  


Value and Luxury: Combining modern aesthetic design with a transparent, reasonable price structure, we help you expand your living space without compromising on quality.  


Property Value Growth: Building an accessory dwelling unit is the fastest way to add significant income potential and equity to your home, making it a smart choice for home additions.  


Integrated Team: Our architects, engineers, and construction managers work as one cohesive unit—the true definition of a turnkey ADU builder.

Start My ADU Project Today!

Blogs

Copyright © 2025 310 ADU - All Rights Reserved.

Powered by

This website uses cookies.

We use cookies to analyze website traffic and optimize your website experience. By accepting our use of cookies, your data will be aggregated with all other user data.

DeclineAccept