ADU Construction Services in Los Angeles, CA
Add Value. House Family. Generate Income. — All on Your Existing Property.
An Accessory Dwelling Unit (ADU) is one of the smartest investments a Los Angeles homeowner can make. More space for your family, a source of rental income, or a long-term asset that pays for itself — and Pedro Carrillo has built them all.
What Is an ADU?
An Accessory Dwelling Unit (ADU) is a secondary housing unit built on the same lot as your primary residence. California's landmark ADU legislation — including AB 68, SB 13, and AB 3182 — has dramatically streamlined the permitting process, making it faster and more affordable than ever to build an ADU in Los Angeles County.
ADUs come in several forms: detached units built separately on your lot, attached units connected to your main house, garage conversions, and Junior ADUs (JADUs) created within existing living space. Constructora Carrillo builds all types — managing every permit, inspection, and construction phase so you don't have to.
Why Choose Constructora Carrillo for Your ADU?
CSLB Licensed #1149766 — all ADUs are fully permitted and legally compliant
Deep expertise in LA County ADU ordinances and streamlined permitting processes
We handle the entire process: design, permits, inspections, and construction
Transparent pricing with no hidden fees — you know your costs before we break ground
Bilingual team — English and Spanish communication throughout your project
Track record of successful ADU builds across Huntington Park, South Gate, and greater LA
Types of ADUs We Build
Detached ADU
A completely separate structure built on your lot — offering maximum privacy for tenants or family members. These are the most popular ADU type in LA County.
Attached ADU
Connected to your main home but with a separate entrance, an attached ADU is often the most space-efficient option — adding square footage without consuming lot space.
Garage Conversion ADU
Convert your existing garage into a fully permitted, livable ADU. This is typically the fastest and most affordable path to an ADU in Los Angeles.
Junior ADU (JADU)
A Junior ADU is created within the existing footprint of your home — usually a converted bedroom or studio space with its own entrance and kitchen. Minimal disruption, maximum value.
Why Build an ADU in Los Angeles?
Rental Income Potential
LA rental rates are among the highest in the nation. A well-built ADU in Huntington Park or surrounding communities can generate $1,500–$2,500/month in rental income — often enough to offset your mortgage.
House Family on Your Property
Keep aging parents, adult children, or extended family close — with the privacy and independence they deserve. An ADU is the modern solution to multigenerational living.
Significantly Increase Property Value
An ADU adds measurable, appraised value to your property. In Los Angeles's competitive real estate market, a permitted ADU can increase your home's value by $150,000–$300,000 or more.
Our ADU Construction Process
Free Property Assessment
Pedro visits your property to evaluate zoning, lot size, utilities, and access — and identifies which ADU type is the best fit for your goals and budget.
ADU Design & Plans
We develop complete architectural and structural plans for your ADU. You review and approve the design before anything is submitted to the city.
Permit Submission
We submit your ADU plans to the City of Los Angeles or LA County and navigate the entire approval process — including any plan check comments. Most LA ADU permits qualify for streamlined review.
Construction & Inspections
Our licensed crew builds your ADU to code and on schedule. We coordinate all required city inspections and keep you updated throughout the build.
Final Walkthrough & Certificate of Occupancy
When construction is complete, Pedro walks through every detail with you. We obtain your Certificate of Occupancy — your legal authorization to rent or occupy the unit.
ADU Frequently Asked Questions
How much does an ADU cost in Los Angeles?
ADU costs in LA County typically range from $80,000 to $300,000+, depending on the type (garage conversion vs. new detached structure), size, and finishes. Constructora Carrillo provides transparent, itemized estimates. Call Pedro for a free property assessment and estimate.
What is an ADU in California?
An ADU (Accessory Dwelling Unit) is a secondary housing unit on a residential lot — separate from the main home. California law (AB 68, SB 13) has made it significantly easier to build ADUs, with streamlined permitting and reduced fees for qualifying properties.
Can I build an ADU in Huntington Park?
Yes. Most single-family residential lots in Huntington Park and throughout LA County qualify for at least one ADU under current California law. Pedro will assess your specific property and zoning during your free consultation.
How long does it take to build an ADU in Los Angeles?
From initial consultation to move-in, ADU projects typically take 8–18 months. Permitting alone can take 3–6 months, though LA City offers expedited ADU review for qualifying projects. Construction typically takes 3–6 months once permits are in hand.
Ready to Build Your ADU?
Whether you want to house family, generate income, or both — the time to build is now. Call Pedro for your free property assessment and ADU estimate.
Free estimates. No obligation. Licensed, bonded & insured. CSLB #1149766.