Now supporting renovations, additions and ADUs!
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How it Works
Plan Your Project
Design Inspiration
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How it Works
Plan Your Project
Design Inspiration
For Pros
Sign In
Get Started

Your ADU, simplified

We’ve reimagined the experience of building a custom ADU to save you time and money.
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Save money and time on your construction project

300+ completed projects

ADU

Modern Ranch-Style ADU with Indoor-Outdoor Features

ADU

Cedar-Sided ADU Adds Space for Hosting and Working

ADU

Light-Filled ADU for In-Laws and Family Flex Space

ADU

Modern ADU Delivered with Transparent, Streamlined Process

ADU

The Ultimate ADU for Senior Living and Work-from-Home

ADU

Cozy Scandinavian-Inspired ADU Doubles as a Workspace and Guesthouse

ADU

This Burlingame ADU is the Perfect Blend of Comfort and Space Efficiency

ADU

Santa Clarita Attached ADU for Multigenerational Living

ADU

ADU in Alameda HOA Adds Flexible Space for the Family

ADU

Customized Craftsman ADU for Multi-Generational Family

Design and build the smart way

Save money

with multiple competitive bids

Get three bids from providers in our network. Multiple bids means you get competitive pricing.
Get Started
Get Started

Save time

by accessing all the pros you need, in one place

We connect you with vetted architects, engineers and contractors to save you the time and hassle of piecing a team together yourself.
We connect you with vetted architects, engineers and contractors.
Start a Project
Start a Project

Avoid headaches

by connecting with trusted pros

Our network of providers is highly vetted and invite-only. We track how our pros perform on timeline and budget, keeping only the top providers on our platform.
Our providers are highly vetted, and we continuously track performance on timeline and budget.
Learn More
Learn More

“Working with the designer we found through Cottage was really collaborative, and we achieved exactly what we wanted. It felt like we were a team.”

Kathy, homeowner
Sophia, Designer
Gabriel, Contractor
Wyatt, Structural Engineer
Christian, Civil Engineer

"Working with Cottage was a fantastic experience. The designer and contractor they matched us with stayed on budget and on time. We love the result!"

Angela, homeowner
Evelyn, Designer
Aaron, Contractor
Jordan, Land Surveyor

“I had a great experience with Cottage. It was great to be able to manage everything for my project online.”

Jocelyn, homeowner
Sophia, Designer
Dylan, Structural Engineer
Javier, Contractor
Chloe, Energy Consultant

“Cottage was a great solution for our project. We liked that we could find all the providers we needed on the Cottage platform.”

Bob, homeowner
Elijah, Designer
Aaron, Contractor
Joseph, Civil Engineer

Explore floor plans

3
 Bed
2
 Bath
1176
 sq ft

Haskell

2
 Bed
2
 Bath
990
 sq ft

Travers

3
 Bed
2
 Bath
928
 sq ft

Francis

2
 Bed
1
 Bath
750
 sq ft

Ashbury

2
 Bed
1
 Bath
750
 sq ft

Pepper

2
 Bed
2
 Bath
736
 sq ft

Robby

1
 Bed
1
 Bath
732.5
 sq ft

Hopkins

1
 Bed
1
 Bath
700
 sq ft

Edelen

2
 Bed
1
 Bath
688
 sq ft

Shamrock

2
 Bed
2
 Bath
670
 sq ft

Marion

2
 Bed
1
 Bath
585
 sq ft

Haight

2
 Bed
1
 Bath
535
 sq ft

Granada

1
 Bed
1
 Bath
510
 sq ft

Mattos

1
 Bed
1
 Bath
500
 sq ft

Ogden

1
 Bed
1
 Bath
450
 sq ft

Nelson

1
 Bed
1
 Bath
436
 sq ft

Vanessa

1
 Bed
1
 Bath
434
 sq ft

Piper

1
 Bed
1
 Bath
364
 sq ft

Madison

1
 Bed
1
 Bath
360
 sq ft

Maria

0
 Bed
1
 Bath
240
 sq ft

Greentree

Streamlined process

Feasibility
Understand what’s possible on your property. Get preliminary guidance on budget and timeline.
Design & Permit
Choose from a curated list of architects best fit for your project. Work directly with them on design and permitting.
Bid
Get competitive bids from vetted ADU contractors. Choose the builder that’s right for your project and budget.
Construction
Your contractor will bring your ADU to life. Track their progress and make payments through our digital platform.
How Cottage Works

Already have a set of plans?

We’ll get you multiple bids from vetted contractors near you that are best fit for your project.
Get Bids
Learn more
Make room for more
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flexible space
generations
family time
rental income