ADU Construction
ADU Construction in La Mirada, CA
La Mirada Builders designs and builds accessory dwelling units (ADUs) — also known as granny flats — for homeowners throughout La Mirada and the surrounding communities. Whether you're building a detached ADU or converting an existing garage, we manage the project from design and permitting through utilities, construction, and the final walkthrough.
Every ADU project starts with a conversation about your goals for the space — rental income, extended family, or a home office — followed by a clear, honest estimate before any work begins. For a look at our full range of remodeling services, visit our homepage.
What's Included
Full-Service ADU Construction
From a garage conversion to a detached ADU, we manage every part of the project.
Investment
ADU Construction Pricing
This range covers most La Mirada ADU projects, but every project is different. Final cost depends on the size and type of ADU, site conditions, and the finishes you choose. We provide a free, itemized estimate before any work begins.
Why Choose Us
Why Choose La Mirada Builders for Your ADU
Insured
Fully insured for your protection and peace of mind on every project.
Since 2011
Over a decade of remodeling homes throughout La Mirada and the surrounding communities.
Free Estimates
Transparent, no-pressure quotes so you know exactly what to expect before we start.
Quality Craftsmanship
Meticulous attention to detail and premium materials on every job, big or small.
On-Time & On-Budget
Clear timelines and honest pricing — we respect your home, your schedule, and your budget.
One Trusted Team
From design to final walkthrough, you work directly with Alex and a dedicated crew.
FAQ
ADU Construction Questions
How long does ADU construction take in La Mirada?
Most ADU projects take about 6 to 12 months from initial design and permitting through final construction, depending on the size and type of ADU and how long permit approval takes. Garage conversions are often faster than ground-up detached units.
Do I need a permit for an ADU?
Yes, ADUs require permits and typically go through plan review with the local building department. We handle the design, engineering, and permitting process as part of the project.
Can I convert my garage into an ADU?
Yes, garage conversions are one of the most common and cost-effective ways to add an ADU, since the existing structure and foundation are often reused. We'll assess your garage to confirm what's feasible.
What size ADU can I build in La Mirada?
Allowed ADU size varies by lot and current zoning, so we'll help you confirm what's allowed for your specific property before finalizing a design.
Do you handle both design and construction?
Yes. We work with you from initial planning and permitting through construction and the final walkthrough, so you have one dedicated team managing your project from start to finish.
Service Area
ADU Construction Throughout the Area
Based in La Mirada, we build ADUs throughout the surrounding communities.
- La Mirada
- Whittier
- La Habra
- Fullerton
- Buena Park
- Brea
- Norwalk
- Santa Fe Springs
- Cerritos
- Artesia
- La Palma
- Cypress
- Placentia
- Yorba Linda
- Hacienda Heights
- Rowland Heights
- Downey
- Pico Rivera
and surrounding areas within 30 miles of La Mirada
Ready to Start Your ADU?
Tell us about your project and we'll get back to you with a free, no-pressure estimate.