Luxury Home Additions On Mercer Island

Enlarge Your Home's Layout And Improve Practicality With A New Addition

With 15+ home additions built, it has never been easier to make the Wise Choice.

cozy interior of a farmhouse living room

Home Additions Provide More Space For More Joy In Your Mercer Island Home

Living in a home in the perfect Mercer Island location but constantly feeling cramped? It's time to explore home additions!

Adding extra space will give you much-needed room to breathe and make each room truly yours. Imagine having an extra living space where the primary bedroom connects perfectly with your own personal bathroom or a separate wing for in-laws.

Home additions are not only a fantastic way to gain some much-needed extra room but they also create a space that feels as if it was meant just for you. What are you waiting for? Start envisioning your Mercer Island home upgrade today!

Here are some popular home additions upgrades:

Home Additions Boost Your Mercer Island Home's Value

When you decide to upgrade your Mercer Island home with a home addition, it's not just about creating additional space--it's an investment that will also increase home value. Home additions allow you to infuse personal touches and add style to your Mercer Island home while providing additional comfort.

The stunning transformation of your home can help give you a sense of pride and accomplishment--plus, the added bonus of recouping value when it comes time to sell your Mercer Island home is an incredibly reassuring feeling.

Chic living room interior in gray colors

How our Home Addition Process Works

Our goal is for you to get the home addition you love, so we've built our process with you in mind. We value simplicity and transparency because it always provides the best outcome!


Step 1. Get In Touch

Please fill out the contact form to get started. The next step is for us to have a phone consultation to understand what you envision for your updated space!


Step 2. We'll Do The Work

After our on-site consultation where we'll discuss budget, timeline, and materials, we'll send over a final proposal. Upon approval, we'll begin construction on your agreed-upon project start date!


Step 3. Love Your New Space

After cleaning up, we'll do a post-job walkthrough together to ensure everything is as it should be. From there, your new space is yours to enjoy!

Home Addition Prices On Mercer Island

Transparency Is At The Heart Of Everything We Do Because We Want You To Be In The Know! This Includes The Pricing Of Our Home Addition Construction Projects.

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Base Home Additions*


This is typical for a 200-300 sq ft addition. A popular addition in this tier is a 200 sq ft master suite with a walk-in closet.

From ground break to completion in 14-18 weeks.

Average Home Addition

Average Home Additions*


This is typical for a 500-600 sq ft addition. A popular addition in this tier is a 550 sq ft upgrade of living space or bedrooms, a full bathroom and closet space customized as needed.

From ground break to completion in 18-22 weeks.

a room with a lot of windows and chairs.

High-End Home Additions*


This is typical for a 900-1000 sq ft addition. A popular addition in this tier is a 900 sq ft upgrade of living space, 2 full bathrooms, and reconfiguring walls as needed. Includes other custom work.

From ground break to completion in 22+ weeks.

*Prices are averages and may change depending on your square footage, choice of materials, appliances, and finishes. You’ll receive an exact quote for your unique home addition after the in-house consultation.

Home Addition Cost Calculator

Building an addition to your home is a great way to add square footage to your house and make room for the things you love. In Seattle, it’s typical to spend between 25% and 75% of the value of your home on an addition. This means that if you have an $800,000 home, you should expect to budget anywhere between $200k and $600K for your project.

Besides the look you want and your favorite appliances, there are multiple factors that go into building an addition:

Use our calculators to get a more defined idea of what your home addition investment will look like.

Drag the sliders to adjust your values


This structure will include a bathroom or a kitchen.


Your Rough Estimate Is:


Bathroom size in square feet
Quality of appliances, materials, and complexity
Your Rough Estimate Is

Home Additions Gallery

If you're looking for inspiration for your next home addition project, you can count on us! Check out our gallery below.

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Home Additions Completed
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Here’s What Our Customers Say…

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Frequently Asked Questions

Grow Your Space With A Home Addition

If you're ready to enhance your quality of living, let's chat.