Bothell

Custom Home Builders & ADU Contractors Bothell

Smart construction solutions for Bothell homeowners—custom homes, ADUs, garage conversions, and seamless additions

Explore What We’re Providing

Homes in Bothell Deserve Better Than Patchwork Fixes

Bothell is full of potential—established neighborhoods, generous lots, and older homes that don’t always fit modern life. We help homeowners reimagine what their property can be, and then build it right.

Signature Build is a full-service design-build contractor serving Bothell, Washington. Our specialty is in custom home construction, ADUs and DADUs, garage conversions, and structural additions—projects that involve more than just finishes. Everything is handled by one experienced team, from architectural planning to permits to final inspection.

We’ve completed garage conversions near Canyon Park, custom builds on subdivided lots, and home additions in North Creek—all designed around how people live now.

Construction Services in Bothell, Washington

We Design It, We Build It, You Love It

Custom Homes

New custom homes built in Bothell—engineered for your site, your goals, and long-term use.

ADUs & DADUs

Backyard ADUs, over-garage apartments, and basement conversions—permitted and built for how you’ll actually use them.

Garage Conversions

We convert garages into insulated, livable square footage. Fully permitted, code-compliant, and designed for real function.

Home Additions

We convert garages into insulated, livable square footage. Fully permitted, code-compliant, and designed for real function.

Whole-Home Remodeling

When the existing layout no longer works, we take on full-scale remodels that improve how your home lives, not just how it looks.

Commercial Construction

Clean, on-schedule commercial build-outs and tenant improvements for Bothell property owners.

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3 Breathtaking U-Shaped Kitchen Remodeling Designs for a Functional and Stylish Space

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Transforming Your Home’s Curb Appeal with Seasonal Holiday Decorations

Incorporating Festive Patterns And Textures Into Your Holiday Home Decor

Why Bothell Clients Work with Signature Build

Why choose us to remodel your home? It’s simple. Our established design-build process eliminates the hassles, headaches, and unforeseen costs associated with typical remodeling projects.

One Contract, One Team

Design, engineering, permits, and construction all under one roof.

We Know Bothell’s Code

We’ve worked through DADU rules, lot setbacks, and drainage reviews across Snohomish and King County.

Clear, Fixed Estimates

Scope, timing, and pricing—set upfront, no guessing games.

Professional Builders

Our crews are skilled, clean, and take pride in the work.

Financing Options Available

We offer financing for your Bothell custom home, garage ADU, or addition project.

Our Process for Custom Homes & ADUs in Bothell

Design Built Around Use and Code

Every plan starts with how you’ll live in the space—and what the lot allows.

Permit Coordination and City Approvals

We manage reviews with Bothell’s planning department or county officials.

Construction with Consistency

Reliable crews, sharp timelines, and clean oversight—until the job’s done right.

Projects Around Bothell, WA

We’ve completed DADUs in North Creek, garage conversions near Canyon Park, custom homes east of I-405, and additions in Snohomish County neighborhoods.Here are just a few of our beautifully crafted, inspirational kitchen and bathroom works of art.