# ADU & Garage Conversion in Los Angeles

1 Smart Build handles adu & garage conversion projects end-to-end across Los Angeles County: design, structural engineering coordination, city permitting and construction with our own licensed crews. Detached ADUs up to 1,200 sq ft, attached ADUs, JADUs, garage conversions, and legalizing existing unpermitted units, including zoning and setback review, panel capacity checks and LADBS permitting.

## Cost and timeline

- Typical cost: $120,000–$350,000
- Typical timeline: 8–14 months from first site visit to final inspection
- Service area: Los Angeles County and the San Fernando Valley

These are planning ranges based on completed projects, not quotes. Every project receives a fixed-price proposal with written specifications after a site visit.

## What is included

- Free consultation and site review
- Architectural design and engineering coordination
- Los Angeles permitting and plan check management
- Construction with milestone inspections
- Fixed-price proposal and written warranty

## Related pages

- [All services](https://1smart.build/services)
- [Remodeling costs](https://1smart.build/remodeling-cost-los-angeles)
- [Case studies](https://1smart.build/projects)

## Company facts

- Business: 1 Smart Build, design-build general contractor
- Phone: 1 (866) 419-8840
- Email: info@1smart.build
- Office: 21243 Ventura Blvd #133, Woodland Hills, CA 91364
- License: California CSLB #1076428 (Class B, General Building Contractor)
- Insurance & bond: $1,000,000 liability policy, $15,000 contractor bond
- Reviews: 4.9 stars on Google (168 reviews)
- Ownership: Veteran-owned and women-owned
- Service area: Los Angeles County and the San Fernando Valley

Canonical HTML version: https://1smart.build/services/adu-garage-conversion
Site index for agents: https://1smart.build/llms.txt