Best ADU Builders in Los Angeles, California

As Los Angeles faces a growing need for affordable housing, Accessory Dwelling Units (ADUs) have become the go-to solution for homeowners looking to increase property value, generate rental income, or create space for extended family. But finding the best ADU builders in Los Angeles can be overwhelming.

1. FortuneADU.com – Your All-in-One ADU Partner

Why Choose FortuneADU?

FortuneADU.com stands out as one of the most innovative and client-friendly ADU builders in Los Angeles. With their “Shelf Ready ADU Plans” and a deep understanding of local permitting laws, they simplify the entire process from concept to completion. They also assist with ADU permit fee waivers in California, helping homeowners save thousands.

Highlights:

Pre-approved ADU plans to fast-track approvals
Transparent pricing and timeline estimates
Expert team for One-Stop Design–Permit–Build services
Tailored for Los Angeles zoning and codes

Whether you're building a garage conversion, detached ADU, or two-story backyard unit, FortuneADU is known for combining speed, quality, and affordability.

2. Otto ADU

Why Choose Otto ADU?

Otto ADU is known for sleek, modern designs and full-service ADU builds tailored to urban lots in LA. Their platform allows you to explore floor plans and get instant pricing.

Strengths:

High-end aesthetics
Turnkey ADU services
Smart use of small spaces

3. Modal

Why Choose Modal?

Modal specializes in modular prefab ADUs that are manufactured off-site and installed quickly on your property. It’s a fast-track solution for homeowners who want minimal disruption.

Strengths:

Speedy installations
Premium materials
Energy-efficient designs

4. LA Creative Design

Why Choose LA Creative Design?

LA Creative Design brings personalized project management and decades of construction expertise. Their team is great for clients who want creative freedom and professional oversight.

5. Levi Design Build

Why Choose Levi Design Build?

Levi is a general contractor offering solid ADU solutions in LA. They are known for excellent customer service and efficient permit handling.

Why You Should Work with an ADU Expert

Permit Expertise: Los Angeles has strict zoning rules. Top ADU builders know how to handle city requirements efficiently.
Cost Transparency: Leading companies provide itemized breakdowns to avoid surprises.
Speed & Efficiency: Builders like FortuneADU and Modal offer pre-approved ADU plans and prefab options to cut down build time.
ADU Permit Fee Waivers in California: Many top firms will guide you through eligibility for fee waivers and state rebates.

FAQ

What should I look for in an ADU builder in Los Angeles?

Look for a builder with strong experience in LA zoning, a clear track record, good reviews, and the ability to manage design, permits, and construction in-house.

How long does it take to build an ADU in Los Angeles?

Depending on the builder and project type, it can take 3 to 9 months. Pre-approved plans or modular units can significantly reduce the timeline.

Are ADU permits expensive in Los Angeles?

Permit costs vary by unit size, location, and type of construction. Fortunately, ADU permit fee waivers in California can reduce or eliminate some fees if the unit meets affordability or zoning criteria.

Can I finance my ADU project?

Yes! Many lenders in California offer ADU-specific financing programs, including HELOCs, renovation loans, and state-sponsored incentives.