Now supporting renovations, additions and ADUs!

Your ADU, made simple

Match with vetted pros, get competitive pricing, and manage everything on our modern platform.

Save money and time on your construction project

250+ completed projects

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

ADU

Los Angeles Garage Conversion ADU

Design and build the smart way

Access the best local pros

We've vetted thousands of pros and have onboarded only the top 5% to our invite-only network.

Start a Project

Get three competitive bids

Know you're getting fair pricing with competing bids. There's no commitment to work with any of the pros we match you with.

Start a Project

Manage everything in one place

Store project documents, track your progress and manage payments in your Cottage dashboard.

Compare proposals apples-to-apples

Avoid hidden costs with our smart proposal comparison tool. ✨

“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

Streamlined process

Create Your Project

Tell us about your scope, design vision and budget, then access your project dashboard.

Match with a Designer

Choose from a curated list of designers best fit for your project. Work directly with them on design and permitting.

Access Consultants

Access all the consultants and engineers you need through our network of vetted, local pros.

Match with a Contractor

Get multiple competitive bids from trusted builders near you. Choose the contractor best for your project and budget.

How Cottage Works

Already have a set of plans?

Upload them and we’ll get you multiple bids.

Make room for more

flexible space

generations

family time

rental income

Meet Cottage

How it Works About Careers For Designers For Contractors Privacy Policy

Project Types

ADUs Kitchens Bathrooms Remodels Additions

Featured Projects

ADU Gallery Renovations Gallery

Resources

All Resources ADU Guide ADU Floor Plans ADU Regulations

We're Here to Help

Email hello@cotta.ge

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