Garage Conversion
Brother & Brother Builders
Garage conversion is one of the ways Brother & Brother Builders helps San Jose homeowners find more usable living space without expanding a home's footprint. As a full-service general contractor based at 3109 Stevens Creek Blvd Ste A in San Jose's 95117 area, the company treats an underused garage as an opportunity — a framed, roofed structure already tied into a home that can be reworked into a bedroom, home office, guest suite, or flexible living area. This page profiles that specific part of their broader construction and remodeling practice across Santa Clara County.
How Garage Conversion Fits the Brother & Brother Builders Practice
Brother & Brother Builders works across the full spectrum of residential construction, from new home construction and custom homes to ADU construction, second story additions, room additions, and interior remodeling. Garage conversion sits naturally within that range because it draws on many of the same disciplines — design build planning, floor plan development, drywall, flooring installation, and interior painting all come into play when a garage becomes a finished, livable room. For families in a market as space-constrained as Silicon Valley, converting an existing garage is often a practical alternative to a full addition, and it complements the company's related services like ADU construction and room additions.
What a Garage Conversion Involves
In plain terms, a garage conversion transforms a space built for vehicles and storage into one built for people. That means addressing insulation, flooring, ceilings, walls, lighting, and climate comfort so the room feels like a genuine part of the home rather than a repurposed shell. Depending on the intended use, the work may include closing off or replacing the garage door opening, framing new walls, running electrical, and finishing surfaces with drywall, flooring, and paint. Because Brother & Brother Builders operates as a design build contractor with access to 3D home design tools and floor plan development, homeowners can see how the reconfigured space will function before construction begins.
| Aspect | What It Involves | Typical Considerations |
|---|---|---|
| Intended use | Defining whether the space becomes a bedroom, office, suite, or flex room | Layout, natural light, and access shape the plan |
| Structure & envelope | Insulation, framing, and finishing walls, ceilings, and floors | Comfort and matching the home's existing feel |
| Systems | Electrical, lighting, and climate comfort for year-round use | Coordinating utilities with the existing home |
| Finishes | Drywall, flooring installation, and interior painting | Consistency with adjacent living areas |
| Garage opening | Replacing or closing the vehicle door area | Exterior appearance and street-facing curb appeal |
How Brother & Brother Builders Approaches This Work
As a design build general contractor, the company can carry a garage conversion from concept through completion under one roof, coordinating architectural services, floor plan development, and the hands-on trades that finish the room. That integrated approach is useful for a conversion, where the design decisions — where a wall goes, how light enters, how the space connects to the rest of the home — directly affect the finished result. The same team that handles green building options, smart home upgrades, and modern home design on other projects can bring those sensibilities to a converted garage when a homeowner wants them.
- Discuss the goals for the space and how it will be used day to day.
- Develop a floor plan and design, using 3D home design tools to visualize the layout.
- Plan the structural, electrical, and comfort elements needed for a livable room.
- Frame and finish the walls, ceiling, and flooring to match the home.
- Complete drywall, interior painting, and final finishes.
- Address the former garage door opening and exterior appearance.
Serving San Jose and Santa Clara County
Brother & Brother Builders delivers this work throughout San Jose and the surrounding communities of Santa Clara County. Its Stevens Creek Boulevard location — a major corridor linking San Jose to Santa Clara and Cupertino near Westfield Valley Fair and Santana Row — puts the company within reach of a wide range of neighborhoods. Garage conversions are carried out for homeowners in areas including Central San Jose, Winchester, Willow Glen surroundings, Cambrian, Communications Hill, Japantown and Luna Park, Rancho Rinconada, and Golden Triangle, as well as nearby cities like Campbell, Santa Clara, Cupertino, Saratoga, Los Gatos, Monte Sereno, and Sunnyvale.
| Area Served | Nearby Landmark |
|---|---|
| Central San Jose | Municipal Rose Garden |
| Winchester | Winchester Mystery House |
| Santa Clara | California's Great America |
| Los Gatos | Vasona Lake County Park |
| Japantown and Luna Park | Emma Prusch Farm Park |
Whether the goal is a quiet home office near Central Park, an extra bedroom for a growing household in Cambrian, or a guest suite in one of the neighborhoods around Westgate Center, a garage conversion lets homeowners add functional square footage inside their existing structure. Working within the general contracting category across Santa Clara County, Brother & Brother Builders contributes to the ongoing improvement of homes throughout one of Silicon Valley's most dynamic regions, and the company can be reached by phone at +1 888-412-2632.
Getting here
From Happy Hollow Park & Zoo
Happy Hollow Park & Zoo is roughly 6.0 miles away, about 13 minutes on the road. The route follows Senter Rd and S 11th St toward I-280 N, exiting near Stevens Creek Blvd for Brother & Brother Builders.
Common questions
What is the average cost of converting a garage in California?
Garage conversions in California commonly range from roughly $20,000 to $70,000, depending on whether you're adding a bathroom, kitchenette, or full living space, plus insulation, electrical, and permits. Costs climb when converting to a legal ADU. Brother & Brother Builders, a general contractor at 3109 Stevens Creek Blvd in San Jose, handles garage conversions and ADU construction throughout Santa Clara County, tailoring scope to each property owner's goals.
What's the average cost of a garage conversion in CA 95117?
A garage conversion typically averages between $20,000 and $50,000, though a full ADU-style conversion with plumbing and a kitchen can run higher. Factors include square footage, electrical upgrades, flooring, and permitting. Serving the San Jose and CA 95117 area, Brother & Brother Builders offers garage conversion and room addition services, working with local homeowners to convert underused garage space into functional, code-compliant living areas.
Is it cheaper to convert a garage or to build an addition in CA 95117?
Converting a garage is usually cheaper than building an addition because the foundation, walls, and roof already exist, so you mainly add insulation, finishes, and utilities. A new addition requires building everything from the ground up. Brother & Brother Builders, based near Stevens Creek Boulevard in San Jose's 95117 area, handles both garage conversions and room additions, helping property owners weigh which option fits their space and needs.
Does a garage conversion devalue a house in CA 95117?
A garage conversion can either add or reduce value depending on execution. A well-permitted, quality conversion that adds livable square footage often increases value, especially where housing demand is high. Losing covered parking without permits can hurt resale. Brother & Brother Builders, a general contractor serving San Jose, Cupertino, Campbell, and surrounding Santa Clara County neighborhoods, focuses on properly built conversions that enhance a home's usable space.
What is the average cost to build a 24x24 garage in CA 95117?
A 24x24 detached garage often costs roughly $30,000 to $60,000 or more, depending on foundation, framing, roofing, doors, and whether it's finished inside. California labor and permit costs push figures toward the upper range. Brother & Brother Builders, a full-service contractor on Stevens Creek Boulevard in San Jose, handles new construction and structural building projects for homeowners across the West San Jose and Santa Clara County region.
How much does it cost to pour concrete for a 24x24 garage in CA 95117?
Pouring a 24x24 concrete slab (about 576 square feet) generally costs between $3,500 and $8,000, depending on thickness, reinforcement, site prep, and grading. Complex sites raise the price. Brother & Brother Builders, a general contractor based in San Jose's 95117 area, manages foundation and structural work as part of new home construction, garage projects, and additions throughout Santa Clara County.
What's the most expensive part of building a garage in CA 95117?
The foundation and framing are typically the most expensive parts of building a garage, followed by roofing and, when finished, electrical and interior work. In California, permitting and labor add significantly to the total. Brother & Brother Builders, serving San Jose, Santa Clara, Cupertino, and nearby communities, handles these structural stages as part of its new construction and building services for local property owners.