ADU Model · 3 Bed · 2 Bath

1000 Sq Ft 3-Bedroom ADU

Three bedrooms. Two full baths. A great room you can actually host in. Not an accessory to your home — a second one. From $450,000.

A Second Home on Land You Already Own

Three bedrooms changes the whole conversation. Your ADU stops competing with apartments and starts competing with houses. Two kids get their own rooms. A couple gets a bedroom, a nursery, and an office. At 1000 sq ft with two full baths and an open great room, this holds a whole family — comfortably, permanently.

And it pays like a house too. Three-bedroom rentals pull the strongest monthly numbers anywhere in the Bay Area, and they attract families who sign long and stay put. No purchase price. No second mortgage. No property hunt. Just a second income stream sitting in your backyard — and a property worth more the day it's finished.

Every model in our ADU lineup is designed, engineered, permitted and built by one design-build team. On your lot. Around your home. Never a box dropped in from a factory.

Model Specifications
Size
1000 sq ft
Configuration
3 Bed · 2 Bath
Ceiling Height
9 feet
Starting From
$450,000
Construction
4–5 months
Permit Approval
40–60 days
What's In It
Primary bedroom with private ensuite · two additional bedrooms · second full bathroom · full kitchen · open great room with dining · in-unit washer/dryer hookup · 9-foot ceilings throughout · private entrance and address · modern or farmhouse exterior
On City Fees
Bigger units carry city impact fees, and we put them in writing instead of hiding them in an allowance. Set against what a three-bedroom earns, most owners clear them inside the first year. We pull your city's current schedule during consultation so the number in your proposal is the real one.

Three Bedrooms, Properly Separated

The primary sits on its own with a private ensuite. Two more bedrooms share the second bath at the other end. Between them, a great room wide enough for a real sofa, a dining table, and people moving around both at once. It's laid out like a single-family home because that's exactly how it lives.

1000 sq ft 3-bedroom 2-bath ADU floor plan by California Bay Builders and Remodeling 1000 sq ft ADU interior great room with 9 foot ceilings by California Bay Builders

Shaped Around Your Property

Door swings, window placement, how each bath lays out, every finish in the building — you call it. Before a single permit drawing gets made we study your lot: where the sun lands, where the setbacks fall, how equipment gets in, which orientation gives you the best result.

Building from a proven model is what buys you a firm number and a schedule you can plan around. The structure is engineered, the Title 24 is solved, the plan has cleared plan check before. Want something drawn from scratch instead? We do that too — different scope, different timeline, and we'll lay out both so you can pick with clear eyes.

Pick the Face It Shows the Street

At 1000 sq ft the building is genuinely visible — from the street, from your neighbors' windows, from the back of your own house. So the exterior matters. Both options carry the identical interior. Which one is right comes down to your existing architecture and your city's design guidelines, and we settle that early so review goes smooth.

1000 sq ft 3-bedroom ADU modern exterior elevation by California Bay Builders and Remodeling

Modern

Long horizontal lines, dark framed glass, a roof that keeps its profile low. Reads as architecture, not an outbuilding — which is what you want at this scale.

1000 sq ft 3-bedroom ADU farmhouse exterior elevation by California Bay Builders and Remodeling

Farmhouse

Board-and-batten, a generous roof pitch, trim with some weight behind it. Settles in next to ranch and craftsman homes like it's been there for years.

Its Own Address, Its Own Outdoor Space

A three-bedroom home needs to feel like a home from every side, not just the one facing the street. Generous glass across the rear pulls daylight deep into the great room, and the unit sits with a piece of the yard to call its own. Two households, two front doors, privacy nobody has to negotiate.

1000 sq ft ADU rear elevation with patio by California Bay Builders and Remodeling

What a Third Bedroom Unlocks

Two bedrooms serve a couple. Three serve a family — and families behave differently, whether they're your tenants or your relatives. They put down roots. They renew. They treat the place as home.

Top of the Rental Market

Three-bedroom units pull the highest rents in the Bay Area and face the least competition. Most ADUs get built smaller — which leaves the top of the market wide open for you.

Tenants Who Stay Put

Families pick a home for the school district and stay for years. Long leases mean fewer vacant months, fewer turnovers, and a lot less work landing in your inbox.

Three Generations, One Lot

Grandparents with room for the grandkids to sleep over. Or an adult child with a young family of their own. Close enough for daily life, separate enough that everyone stays happy.

The Swap

Move into the ADU, lease out the main house. Three bedrooms and two baths means you're not giving anything up — and the rent on a full-size home is serious money.

Value That Sticks

A permitted three-bedroom with its own address is a genuine second dwelling on your parcel. Appraisers take that seriously. So do buyers, when the day comes.

Options Down the Road

Family housing this year, rental income next year, home office and guest suite after that. A three-bedroom flexes as your life does. A studio can't.

Nine Feet, Every Model

Most accessory units get framed at eight feet because it's cheaper. We build every model at nine. Across a great room this size the difference is dramatic — taller glass, daylight reaching further in, volume that feels like the main house instead of an annex. Costs us more. Included in your price. We wouldn't build it any other way.

The Full Walkaround

1,000 sq ft ADU modern front elevation by California Bay Builders and Remodeling 1,000 sq ft ADU rear elevation with French doors by California Bay Builders 1,000 sq ft ADU farmhouse front elevation by California Bay Builders and Remodeling 1,000 sq ft ADU great room interior with 9 foot ceilings 1,000 sq ft 3-bedroom 2-bath ADU floor plan by California Bay Builders and Remodeling
Free · No Obligation

Find Out What Your Lot Will Hold

More Bay Area properties accommodate a three-bedroom than owners expect — California's ADU laws have opened up lots that would not have qualified a few years ago. We come out, measure, review your setbacks and coverage, and tell you straight what fits. Pricing, inclusions, permits and financing are laid out on our ADU page, and you can see everything else we build on our services page.

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