Licensed ADU builders, garage conversion specialists, and permit experts serving San Diego County — La Jolla, North Park, Chula Vista, El Cajon and beyond. Free property qualification, transparent pricing.
An Accessory Dwelling Unit (ADU) is one of the smartest investments a San Diego homeowner can make in 2026. With updated state laws and the City of San Diego's Bonus ADU Program, qualifying lots can now build multiple ADUs — generating rental income, increasing property value, and creating space for family. Below, we break down the four areas every San Diego homeowner should understand before starting an ADU project.
Converting a 1- or 2-car garage into a livable ADU is the fastest, lowest-cost path to rental income in San Diego. Most projects fall between $80,000 and $180,000 depending on plumbing, electrical and finish level. Garage conversions in neighborhoods like North Park and La Jolla are especially popular due to lot sizes and rental demand.
San Diego's permit process for garage conversions is streamlined when the existing structure is sound and meets setback requirements. Our team handles everything — from Title 24 energy reports to final inspection.
Learn more about garage conversion costs in San Diego →The total cost to build an ADU in San Diego in 2026 typically ranges from $180,000 for a small detached unit up to $450,000+ for a high-end 1,200 sq ft ADU with custom finishes. Cost drivers include site conditions, utility connections, foundation type, and design complexity. Hillside lots in La Jolla often cost more due to engineering, while flat lots in Chula Vista or El Cajon are more affordable.
We provide line-item, fixed-price proposals so you know exactly what you're paying for — no surprises mid-project.
See our full ADU cost guide in San Diego →The City of San Diego ADU regulations have streamlined the permit process, with most ADU permits now issued within 60 days under SB 9, AB 2221, and the local Bonus ADU Program. Permit fees range from $3,000 to $15,000 depending on size and impact fees, with Junior ADUs (JADUs) qualifying for further reductions.
Our in-house expediters know every San Diego planner and can avoid the costly delays most owner-builders run into.
Learn about ADU permits in San Diego →Choosing the right ADU builder is the single biggest decision in your project. A licensed, experienced San Diego ADU contractor will save you money on change orders, design revisions and permit re-submittals. Look for a C-10 license, ADU-specific portfolio, in-house design, and verifiable San Diego County references.
We're proud to be one of the most trusted ADU builders in San Diego, with 500+ completed projects across La Jolla, North Park, Chula Vista, El Cajon, Encinitas and beyond.
Compare top ADU builders in San Diego →Tell us about your property. We'll review zoning, setbacks and feasibility and respond within 24 hours.
We design, permit and build ADUs across all of San Diego County — from coastal La Jolla to East County El Cajon. Wherever your property is, we know the local building department.