ADU Contractor Los Angeles | Accessory Dwelling Unit Builder

Build an ADU in Los Angeles — Expert Construction by APLA

California’s ADU laws have made Los Angeles one of the most ADU-friendly cities in the nation. As a licensed ADU contractor in Los Angeles, APLA Construction Group helps homeowners add rental income, house family members, or increase property value through expertly built Accessory Dwelling Units across all of Greater LA.

Types of ADUs We Build in Los Angeles

Detached ADU — a standalone structure in your backyard, fully independent
Garage conversion ADU — convert your existing attached or detached garage into a livable unit
Attached ADU — an addition connected to your existing home with a separate entrance
Junior ADU (JADU) — up to 500 sq ft created within the existing home’s footprint

ADU Construction Costs in Los Angeles (2025)

Garage conversion ADU: $80,000 – $150,000
Detached ADU (400–600 sq ft): $130,000 – $220,000
Detached ADU (600–1,200 sq ft): $200,000 – $380,000
Junior ADU (JADU): $40,000 – $80,000

All costs depend on site conditions, finish selections, and permit complexity. Contact APLA for an accurate, itemized quote.

The ADU Building Process in Los Angeles — Step by Step

Free consultation and site evaluation — we assess your lot, zoning, and project goals
Design and architectural plans — we coordinate with architects and designers
City permit submission — LADBS or local jurisdiction, we handle everything
Construction — foundation, framing, MEP rough-in, insulation, drywall, finishes
Final inspection and certificate of occupancy

Frequently Asked Questions — ADU Contractor Los Angeles

Can I build an ADU on any lot in Los Angeles?

Most single-family and multi-family lots in Los Angeles are now eligible for at least one ADU under California state law (SB 9, AB 68, AB 976). APLA evaluates your specific lot, zoning, and setback requirements during the free consultation at no cost.

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

From initial consultation to certificate of occupancy, expect 8–14 months for a detached ADU. Garage conversions can be faster — typically 4–8 months depending on permit turnaround at LADBS and site complexity.

Do I need to live on the property to build an ADU in Los Angeles?

As of 2025, California law (AB 976) does not require owner occupancy for ADUs on single-family lots. You can rent both your main home and your ADU simultaneously.

Will an ADU increase my property taxes in California?

Under California law, building an ADU triggers a partial reassessment only of the new ADU construction — not your entire home. Your existing home’s assessed value remains unchanged.

Can I finance an ADU in Los Angeles?

Yes. Common financing options include cash-out refinancing, home equity lines of credit (HELOC), construction loans, and ADU-specific lending programs. Contact APLA and we can connect you with trusted local lenders.

Start Your ADU Project in Los Angeles

APLA Construction serves all of Greater Los Angeles — from the San Fernando Valley and West LA to Long Beach, South Bay, Malibu, and Pasadena. Learn more about our ADU construction services.

Phone: (818) 818-4419
Email: info@aplaconstruction.com
License: CA #1136359

ADU Contractor Los Angeles — Costs, Process & 2026 FAQ