Custom ADUs Made Simple

Custom ADUs Made Simple

Custom ADUs Made Simple

Why Homeowners Choose Cottage

House
Services
Heart
Hammer
Ample natural light
Space to entertain
Indoor-outdoor living
$150k-$175k budget

Custom Designed Just For You

Unlike prefab ADUs, we offer custom designs to match your unique space, budget and needs.

Ample natural light
Space to entertain
Indoor-outdoor living
$150k-$175k budget

Custom Designed Just For You

Unlike prefab ADUs, we offer custom designs to match your unique space, budget and needs.

Hassle-Free Process

We handle your project from design to permitting to construction with a vetted contractor. We involve you in the fun parts of design while saving you the paperwork and heavy lifting.

1

Feasibility

Feasibility

Discover what type of ADU is best suited for your property, goals, and budget.

2

Design

3

Permitting

4

Construction

Choose from dozens of floor plans

Get started with one of our team’s favorite floor plans. We’ve hand selected these plans for their smart usage of space and value-engineered details. By starting with a Cottage Favorite floor plan, you’ll be able to move more quickly through design and permitting, saving you both time and money.

Bang For Your Buck

Our contractor and supplier partnerships unlock scaled discounts that you wouldn’t get independently. Get a custom, lasting ADU for less than the price of prefab.

Cottage's ADU Estimates are All-Inclusive

CottagePrefab ADUsDesign-Bid-Build
Design
Included
$2,500
upcharge
$10,000
Engineering
Included
Included
$7,000
Site Prep
Included
$5,000
upcharge
$5,000
Utility Connections
Included
$10,000
upcharge
$10,000
Foundation
Included
$10,000
upcharge
Included
Construction
Included
$279,000
$250,000
Total
$250,000
$306,500
$282,000

Build with a Vetted Pro

We'll pair you with a licensed contractor from our network of trusted partners. Each builder is fully qualified, vetted, and prepared to deliver your ADU.

check

Vetted by industry experts

Expand
check

Licensed, bonded, and insured

Expand
check

1 Year Workmanship Guarantee

Expand
HammerAre you a contractor looking to partner with Cottage?Learn more
Hi Christina, I stopped by the site today and things are coming along well - right on schedule. Walls are framed out.
Amazing! Can't wait to see!
Hi Christina, I stopped by the site today and things are coming along well - right on schedule. Walls are framed out.
Amazing! Can't wait to see!
star
star
star
star
star
Cottage really helps make the ADU process accessible, approachable, and less intimidating.

Harold

Redwood City, CA

Make room for more