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Ben Street home addition exterior, San Diego Ben Street — home addition, San Diego
San Diego general contractor · since 2006

Transforming Spaces, Building Dreams.

Your trusted partner for ADUs, home renovations, and custom builds in San Diego. At GW Construction, we bring expertise and care to every project, creating the spaces you've always envisioned.

Walnut
White oak
Concrete
Glazed tile
Three brothers · Twenty years · One family
Family-owned since 2006
Greenwich West Inc., San Diego
Licensed, bonded & insured
CSLB #1125098
All of San Diego County
Mon – Fri · 08:00 – 17:00

Built out of real things.

Cedar you can smell, stucco floated by hand, tile set straight, oak hung true. If you want to know how a job will hold up in ten years, look at what it's made of.

Cedar-lined sauna

Western red cedar

Sauna lining and soffits, milled, fitted and finished in-house.

Stucco floated by hand

Hand-floated stucco

Three-coat exterior over lath, patched invisibly into existing walls.

Tiled walk-in shower with glass surround

Stone & glazed tile

Waterproofed, floated and set level. Showers that stay dry underneath.

Custom wooden door with glass panel

Solid oak millwork

Doors, casing and cabinetry built to the opening, not to a catalogue.

Welcome to GW Construction

Find a solution that suits your needs.

Have the confidence to grow bigger.

A full-service general contracting company in San Diego, California. Family-owned since 2006, we deliver exceptional craftsmanship at competitive prices, and we partner with our clients every step of the way, from first concept to final walk-through.

Learn more about us

Guaranteed quality assurance

One crew, one standard, and a final walk-through that isn't finished until you're happy with it.

Licensed, bonded & insured

Greenwich West Inc., CSLB #1125098, working across San Diego County. Mon–Fri, 8:00–17:00.

Ten kinds of work, all under one license.

10 services + 1 specialty
Our specialty

SB 326 / SB 721 Balcony Compliance

Inspection repairs for HOAs and property managers across San Diego. We open it up, show you what's actually behind the stucco, and close it out with the paperwork done.

Balcony & deck repair
Finished deck after an SB 326 repair — new waterproof coating and repainted railings

Recent projects

All 15 projects
Spring Street aerial view during the two-story ADU build
La Mesa · 2023

Spring Street — attached two-story ADU

A two-story accessory dwelling unit built onto the existing house over fourteen months: foundation, framing, kitchen, baths and finishes, all tied into what was already there.

What Spring Street is made of
New foundation & framing
Oak millwork throughout
Tiled kitchen & baths
Cedar exterior details
Detached ADU built by GW Construction
Detached ADU — San Diego · 2024
ADU construction

We specialize in Accessory Dwelling Units.

From detached backyard cottages to garage conversions, an ADU adds flexible living space and real value to your San Diego property. We handle concept, design, engineering, permits, and construction end to end.

Explore ADUs

4 reasons to add an ADU.

Whether you're planning for income, family, or the future, a well-built accessory dwelling unit works harder for your property than almost anything else you can build.

Detached ADU in Carlsbad built by GW Construction
Detached ADU — Carlsbad
01

Earn Rental Income

A steady stream from a long-term or short-term tenant.

02

Boost Your Property's Value

Add permitted, livable square footage.

03

Support Family Living

Space for aging parents or adult children.

04

Address Housing Needs

Flexible housing that adapts as life changes.

What clients say.

Renovation · ADU · Backyard build

My husband and I are beyond happy with our renovation. The quality of their work is second to none — attentive and responsive to all of our concerns and questions. I look forward to using them again in the future.

ACHomeowner · Full renovation

GW built us a beautiful backyard ADU with modern finishes and poolside access. They made the process smooth and delivered exactly what we discussed.

Justin & EileenHomeowners · Chula Vista ADU

We couldn't be happier. GW Construction exceeded our expectations.

Ready to build something?

Tell us what you have in mind and we'll come take a look at it with you.