Home Additions & ADUs
in San Leandro, CA

AZ Elevated Builders provides home additions & adus in San Leandro. We're a family-run, CA-licensed contractor based in Brentwood. Contact us for a free on-site estimate.

Who offers home additions & adus in San Leandro, CA?

AZ Elevated Builders provides home additions & adus in San Leandro, California. We are a family-run, licensed and insured general contractor based in Brentwood, serving San Leandro and the surrounding Alameda County area. Estimates are free, every trade on our crew has 15+ years of experience, and all work carries a written warranty of up to five years. We speak English and Spanish. Call (925) 812-3150.

5.0 Google Reviews ·CA Licensed & Bonded ·Free Estimates ·Warranties up to 5 Years ·Financing Available ·Hablamos Español

Detached ADU guest house with pool at dusk

We design and build primary-suite additions, kitchen expansions, family rooms and second-story additions. Rooflines, windows and finishes are planned to work with the existing house.

An ADU can provide space for family or a rental unit. We handle feasibility, California's ADU requirements, local permitting and utilities through final inspection.

Planning your project in San Leandro

Our San Leandro services include kitchen updates, ADU conversions and interior remodeling.

The local housing includes 1940s–60s post-war tracts on compact, regular lots. Some post-war properties have space for an addition or ADU. We assess the lot and any existing garage during the feasibility review.

We serve San Leandro, including Broadmoor, Estudillo Estates, Bal Theatre area and Marina Faire. Project planning here accounts for flat lots and detached garages to assess for possible ADU conversions. We assess foundations, drainage and space on the lot when planning an addition or detached unit.

Permits and inspections in San Leandro

Permits for work in San Leandro go through the City of San Leandro Building Division. Additions and ADUs are the most review-heavy work we do — setbacks, lot coverage, utilities and California's ADU rules all get checked before a shovel moves. We handle the permit application and coordinate inspections.

What's included

Room additions & home extensions
Primary suite & bath additions
Detached & attached ADUs
Garage conversions
Feasibility & permit management
Utility connections & upsizing
Full kitchens & baths in every unit
Finish levels matched to the main house

What to expect

For your San Leandro project, we provide a free estimate and a written scope before work begins. You'll have one point of contact throughout the job and a written warranty of up to five years. Hablamos español.

Frequently asked questions

Are ADUs legal in San Leandro?

Yes — ADUs are legal in San Leandro. California law requires cities to allow ADUs on most residential lots, and San Leandro processes them under those state rules. We confirm setbacks, size limits and utility requirements for your specific parcel during the free feasibility visit.

What does an ADU cost to build?

It varies with size, site and finish level — a garage conversion is a different project than a detached new build. We price it in a written scope after walking your property, and financing options are available.

How long does an addition take?

Design and permitting typically run 2–4 months depending on the city; construction runs 3–6 months for most additions and detached ADUs. We provide a written schedule and keep you updated weekly.