ADU Construction
Build an accessory dwelling unit on your property for rental income, multigenerational living, or a private home office.
California law makes it easier than ever to add an accessory dwelling unit to your property. Eco Grizzly manages ADU projects from feasibility assessment through final occupancy. We handle architectural plans, city permits, utility connections, and construction. Whether you want a detached backyard unit, a garage conversion, or a junior ADU carved from existing space, we deliver a finished, permitted living space on time and on budget.
Project Photos
View full gallery →Types of ADUs We Build
Detached ADUs: standalone structures up to 1,200 square feet built in your backyard. Garage conversions: transforming an existing attached or detached garage into a fully permitted living unit. Junior ADUs (JADUs): up to 500 square feet created within the footprint of an existing home. We also build above-garage ADUs where site conditions allow.
Permits and Regulations
California Senate Bill 9 and AB 68 streamlined ADU permitting statewide. Most jurisdictions must approve ADU plans within 60 days. We prepare all architectural drawings, structural calculations, Title 24 energy compliance documents, and permit applications. We also coordinate with utility companies for new water, sewer, and electrical service.
Construction Process
After permits are approved, construction typically takes three to six months. Our team handles foundation, framing, roofing, plumbing, electrical, HVAC, insulation, drywall, flooring, cabinets, and finish work. We schedule city inspections at each milestone and provide regular progress updates with photos.
How It Works
Four simple steps from first call to finished job.
Call or Book Online
Reach us at (424) 258-9882 or submit the online form. We respond within two hours on business days.
On-Site Consultation
A project manager visits your home to discuss your goals, take measurements, and review scope.
Design and Estimate
Receive a detailed design plan, materials list, and itemized estimate within five business days.
Build and Deliver
Our crew completes the work on schedule with progress updates, a clean jobsite, and a final walkthrough.
Why Choose Eco Grizzly
Licensed, insured professionals delivering quality home remodeling services.
Free In-Home Estimate
Schedule a no-obligation site visit. We measure, discuss your vision, and deliver a written quote within five business days.
Licensed and Insured
CSLB license #1077111, full general liability, and workers compensation insurance on every project.
Dedicated Project Manager
One point of contact from design through final walkthrough. Progress photo updates at every milestone.
On-Time Completion
We provide a detailed project schedule with milestones at contract signing and stick to it.
Transparent Pricing
You receive a written, itemized estimate before any work begins. No hidden fees or surprise change orders.
Permit Handling
We pull all required building permits and schedule city inspections so you do not have to.
Real Results
ADU Construction Projects
See real adu construction work completed by our licensed team.
Before, Rebar & Vapor BarrierConcrete Patio & Room Addition
Southern California
This project combined a large concrete patio pour with a structural room addition. The crew installed a full rebar grid over a vapor barrier, poured and finished the concrete slab, and completed the room addition framing and exterior to match the existing home. The finished patio features a stamped concrete surface with a built-in outdoor kitchen island, creating a seamless indoor-outdoor living area.
Have a project in mind? We can help.
ADU Construction FAQs
Common questions answered by our certified technicians.
ADU Service Areas
We provide adu throughout Southern California. Search for your city or browse by county.
Related Services
Roofing
Roof repair, replacement, and new installation by licensed contractors covering Los Angeles, Ventura, Orange, and Riverside counties.
Kitchen Remodeling
Transform your kitchen with custom cabinetry, premium countertops, and a layout designed for how you actually cook and gather.
Bathroom Remodeling
From simple vanity swaps to complete bathroom renovations with walk-in showers, heated floors, and custom tile work.
Flooring
Hardwood, engineered wood, luxury vinyl plank, tile, and laminate installed by licensed professionals with precise subfloor preparation.
Painting
Professional preparation, premium paint, and clean lines for every room in your home and every surface on the outside.
General Renovation
Whole-house renovations, room additions, open floor plan conversions, and structural modifications managed by a single licensed team.
Mold Remediation
Safe, thorough mold removal and restoration by licensed professionals serving Los Angeles, Ventura, Orange, and Riverside counties.
Attic Insulation
Proper attic insulation reduces energy bills, improves comfort, and protects your home from heat and cold. Serving Los Angeles, Ventura, Orange, and Riverside counties.
Patio Covers
Attached and freestanding covers in aluminum, Alumawood, and wood, with solid, lattice, or louvered roofs. Serving Los Angeles, Ventura, Orange, and Riverside counties.
Build Your ADU
Call (424) 258-9882 or fill out the form below to request an on-site estimate.