ADU Floor Plans - Bay Area

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SYMBiHOM featured on :contentReference[oaicite:1]{index=1} Bay Area
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Find Your Perfect Space — And a Path to Pay for It

A beautiful, fully permitted home — designed around your life, not the other way around.

San Jose Pre-Approved

Garage Conversions

That underused garage is closer to a beautiful home than you think. Studios from 170 sq ft, one bedrooms from 400 sq ft, two bedrooms from 500 sq ft — all fully permitted, all customizable, all finished to a standard your guests will notice. Small spaces, high dignity.

STUDIO

accessory dwelling unit builder 1 bedroom garage ADU floor plan

1 BEDROOM

convert garage into ADU 1 bedroom interior layout Bay Area

1 BEDROOM

convert garage into ADU 2 bedroom floor plan Bay Area
ADU contractor 2 bedroom garage conversion layout

2 BEDROOM

2 BEDROOM

GARAGE CONVERSION (attached & detached)

Prices range from $150K–$225K depending on size and finishes. A fully permitted garage conversion typically returns 2–3 times the build cost — as a long-term rental or a sellable asset. In San Jose, under AB 1033, your converted garage can be sold separately — detached as a condominium, attached as a duplex. Final pricing depends on site-specific factors — book a free feasibility appointment for an accurate estimate. Final pricing depends on site-specific factors*

Photos Finished Projects
Explore Completed Projects iGuide
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Home Conversions

That unused basement or forgotten corner of your home is hiding something remarkable. Symbihom transforms underused interior space into a fully permitted, beautiful ADU or JADU — studio, one bedroom, or two bedroom, from 170 to 500 sq ft. Your own home, working harder for your family. Small spaces, high dignity.

Black and white floor plan of a ADU apartment, featuring a bedroom, bathroom, kitchen, and living room with front patio area.

STUDIO

1 BEDROOM

Floor plan of a ADU apartment with a living area, kitchen, bathroom, and bedroom.

1 BEDROOM

Architectural floor plan showing ADU living room, bedroom, bathroom, and dining area layout with furniture placement.
Floor plan showing a ADU apartment layout with two bedrooms, a bathroom, a living area with seating, and a kitchenette. There is a small outdoor patio area with a chair and table setup.

2 BEDROOM

HOME CONVERSION

Prices range from $150K–$225K depending on size and finishes. A fully permitted garage conversion typically returns 2–3 times the build cost — as a long-term rental or a sellable asset. In San Jose, under AB 1033, your converted garage can be sold separately — detached as a condominium, attached as a duplex. Final pricing depends on site-specific factors — book a free feasibility appointment for an accurate estimate. Final pricing depends on site-specific factors*

2 BEDROOM

Photos Finished Projects
Explore Completed Projects iGuide
Book a Free Feasibility Appointment
Top view of a modern one-bedroom ADU Backyard ADU layout with open kitchen, living room, bedroom, and bathroom.

Your backyard is one of the most valuable pieces of land in the Bay Area — and right now it's growing grass. Symbihom's pre-fabricated modular system turns that space into a fully permitted, beautiful home. One, two, or three bedrooms from 500 to 1,200 sq ft — far more spacious than a tiny home, built to a standard that feels anything but small. This is where Mom and Dad gain independence, or where $2,000–$3,200 a month in rental income begins.

Backyard

Builds

1 BEDROOM | 1 BATHROOM

500 SQ FT

Black and white 3D floor plan of a modern Backyard ADU with two bedrooms, a bathroom, a kitchen, and a living room.

2 BEDROOM | 1 BATHROOM

750 SQ FT

Black and white floor plan of a modern Backyard ADU with three bedrooms, living room, kitchen, and two bathrooms.

3 BEDROOM | 2 BATHROOM

1000 SQ FT

3D floor plan of a modern Backyard ADU with three bedrooms, two bathroom, a kitchen with an island, a dining area, and a living room.

3 BEDROOM | 2 BATHROOM

1200 SQ FT

Explore Interiors

BACKYARD ADU

Prices range from $250K–$500K depending on size, type and finishes. A fully permitted backyard ADU typically returns 2–3 times the build cost — as a long-term rental or a sellable asset. In San Jose, under AB 1033, your backyard ADU can be sold separately as a condominium — a new real estate asset on land you already own. Final pricing depends on site-specific factors — book a free feasibility appointment for an accurate estimate. Final pricing depends on site-specific factors*

Financing available for all homeowners — including no-payment options for homeowners 62+. We'll connect you with the right specialist on your free call.

Book My Free Feasibility Appointment

Small Spaces + High Dignity

Sustainable + Efficient

No VOC’s

Energy Efficient

Natural Flooring

Solid Core Wood Doors

Space Saving Doors

Signature Finishes

Sleek Showers, Floating Toilets + Ample Bathroom Storage

Cove Lighting

Energy Star Appliances

Modern Glass Doors + Windows

Structural Integrity

Light Gauge Steel Framing

Fully Customizable Framing

Mold + Mildew Resistant

Custom Wall Panels

Pre-Fabricated Off-Site

Approved + Inspected Prior to Delivery

HCD State-Approved

Pre-Wired + Pre-Plumbed

Accessibility Available

Fixtures, Finishes + Customizations

  • Modern white ADU bathroom sink with a chrome faucet and light switches on the wall.

    Fixtures

    Every fixture chosen for beauty that lasts. Sleek, durable, corrosion-resistant — the details that make a small space feel elevated every single day.

  • Light gray marble texture with subtle veins in ADU

    Finishes

    Smooth walls, quartz countertops, natural floors. Materials that look beautiful, clean easily, and hold up over time. Your space will feel like a home, not an afterthought.

  • Modern ADU kitchen with white cabinets, marble backsplash, black induction cooktop, and stainless steel range hood. Two decorative jars, a cutting board, and potted plant on counter.

    Customizations

    This is where it becomes yours. Cabinet styles, colors, hardware, flooring, door style, paint — every choice is yours to make. Including full accessibility configurations if needed. Small spaces, high dignity.

  • Modern ADU living room with yellow armchair, floor lamp, abstract art, side table with vase, and flat-screen TV.

    Interiors

    Not sure where to start with furnishings? We can help you select, source, and arrange everything to make your space feel complete from day one.

Your Home. Your Neighborhood. Your Freedom.

It Starts With One Call.

Check My Home's ADU Potential — Free Appointment