ADU Builders & Home Remodeling Snohomish County

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.

Architect drawings side view of home with new addition.

Cross section view of architect plans of an attic addition.

Floorplan of an additional dwelling unity (ADU) in snohomish.

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.

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.

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.

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.

      EXCELLENT  
   Based on 8 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   Kelly V 
 
 
 
 Trustindex verifies that the original source of the review is Google. We cannot say enough good things about working with Cliff and Sarah and their incredible team! They took on a major project with our basement addition and we could not be more happy with the results! They stuck to the budget we provided, were transparent and attentive throughout the whole project, and everyone involved was just incredible to work with! The quality of work, attention to detail, and overall experience was 10/10. Highly recommend!
  
 
      Posted on Google  
   
   G D 
 
 
 
 Trustindex verifies that the original source of the review is Google. Cliff & Sarah the owners are the perfect team, excellent communicators, organized & stellar craftsmanship! Nothing short of flawless, I highly recommend them for your next home project!
  
 
      Posted on Google  
   
   Got Yard Landscaping Construction. 
 
 
 
 Trustindex verifies that the original source of the review is Google. 1st Ave., homes is a great and diligent Company the husband and wife team are fantastic and great people to work with all of their employees are well mannered and trustworthy. Nothing to complain about.
Fantastic finished product of work!!!
  
 
      Posted on Google  
   
   Kate Retherford 
 
 
 
 Trustindex verifies that the original source of the review is Google. My husband and I hired First Avenue Homes to build an addition on our historic home in downtown Snohomish. It was a unique project and we had a very specific vision for what how we wanted our build (keeping historic and not too modern) but Cliff, Sarah, and their team were up for the challenge! Cliff and Sarah worked with us every step of the way, partnering with us to find solutions when challenges came our way. They ultimately brought our vision to life and now we have our dream home! We are thrilled with the finished project, quality of craftsmanship, and the communication along the way. We have since hired them for another (smaller) project and we were very happy with their work there as well. We would absolutely recommend them and will continue to hire them for other projects in the future.
  
 
      Posted on Google  
   
   Daniel Schroeder 
 
 
 
 Trustindex verifies that the original source of the review is Google. Cliff and his team have done great work on a couple of projects for us! They remodeled a backyard shed into a home office, added stairs to our unfinished attic, and then finished out the attic. They’re always willing to go above and beyond, and we’ve been very pleased with their work, communication, and flexibility.

I, without hesitation, recommend Cliff and First Avenue Homes for any remodeling needs!
  
 
      Posted on Google  
   
   Greg Buell 
 
 
 
 Trustindex verifies that the original source of the review is Google. My wife and I highly recommend Clifford and the crew at First Avenue Homes. You will be so happy you hired them as well!

Clifford was very communicative and kind as we prepared for our bathroom, laundry and kitchen remodel. He guided us through the planning with expert recommendations and explained what each choice would be cost-wise. He was clear about scheduling and we were surprised how quickly he got to our project — in what we know is an industry stretched thin due to high demand.

Clifford and his guys showed up early every morning and stayed until the end of the day. And they stayed on our project until the entire project was complete. In and of itself, this makes First Avenue Homes a unicorn and a wise choice to hire! But they did excellent and thorough work, watching every detail and doing the highest quality work. We couldn’t be more satisfied with their work and we’re so glad we got their help on our house project! Thanks so much, Clifford and Sarah!
  
 
      Posted on Google  
   
   Jeff Larsen 
 
 
 
 Trustindex verifies that the original source of the review is Google. Good problem solvers. I had a challenging issue that I needed help fixing. They not only found a solution, but it turned out better then I thought possible. I'm very happy with their help and I would definitely use them again.
  
 
      Posted on Google  
   
   Sammy Bond 
 
 
 
 Trustindex verifies that the original source of the review is Google. Amazing, wonderful, and kind people.  Husband and wife team that show us what a local family owned business is all about.  We are in the beginning phases of a home addition and could not be happier we have Clifford and Sarah to guide us through.  They work with a wonderful architect and have been transparent with price lists.  They even have a binder dedicated to each project with cost estimation, plans, permits, etc. The organization and transparency are what my husband has called a rare find in the construction industry.

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.