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Expert Residential ADUs, Additions & Remodels

First Avenue Homes specializes in building ADUs, home additions, and remodels. We handle every step—from planning to final construction. We keep homeowners informed and projects on track.

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Architect drawings side view of home with new addition.
Outside view of a dark blue almost finished additional dwelling unit (ADU) in snohomish.
Second-story addition on a historic house in Snohomish.
Cross section view of architect plans of an attic addition.
Bathroom addition in Snohomish with free standing tub and green tiled shower.
Floorplan of an additional dwelling unity (ADU) in snohomish.
Bathroom addition in Snohomish with quartz countertops and new vanity.
Finished recessed window in an attic addition.
Bathroom remodel with free standing tub near large windows.
Inside a bright detached accessory dwelling unit (DADU) with exposed ceiling beam.
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Our Services

First Avenue Homes provides complete residential construction services designed to expand, improve, and enhance your home.

Accessory Dwelling Units

First Avenue Homes builds custom ADUs designed for flexible living, rental income, or multigenerational housing.

Attached accessory dwelling unit (ADU) above garage.
An addition in Lynnwood with all of the siding up.

Additions

Add bedrooms, expand kitchens, build new living areas or bonus rooms that blend seamlessly with your home.

Remodels

Transform kitchens, bathrooms, and living spaces with modern layouts and quality finishes.

Kitchen remodel in Snohomish with white cabinets and grey countertops.

Outdoor Living

Create patios, decks, outdoor kitchens, and comfortable backyard spaces.

Groundwork & Site Prep

Prepare your property for safe and efficient construction with professional excavation and grading.

Why Homeowners Choose First Avenue Homes

Licensed Contractors

First Avenue Homes is licensed, bonded, and insured. Our team manages projects of all sizes. We focus on quality work, careful scheduling, and attention to detail.

Dependable Timelines

We coordinate closely with homeowners and project partners. Clear updates keeping everyone informed at every stage. Our goal is to complete each project on schedule.

Personalized Service

First Avenue Homes uses durable materials and proven building methods. We communicate clearly from planning through construction. Our team focuses on results that meet each homeowner’s needs.

A construction working on a ladder framing an ADU with a tree covered in snow behind him.
A top 3 general contractor award for First Avenue Homes.

Awarded Top 3 General Contractor - 2025

First Avenue Homes was recognized for customer satisfaction, reputation, and service quality. This award is based on verified customer reviews.

What Homeowners Are Saying

First Avenue Homes is proud to receive excellent feedback from homeowners across the region.

About First Avenue Homes

First Avenue Homes is a family-owned and operated residential construction company serving Snohomish County and nearby communities. We specialize in ADUs, home additions, remodels, outdoor living spaces, and site preparation.

Our team is committed to clear communication, quality craftsmanship, and dependable project management from planning through construction.

Build Your Dream Home with First Avenue Homes

Need Financing?

First Avenue Homes partners with RenoFi to help homeowners finance renovation and construction projects.

Homeowners can get pre-qualified or see how much they can borrow. RenoFi helps match each project with the right financing option.

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