Custom Design
Tailored to You
Seamless
Integration
Year-Round
Comfort
Quality
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Local Team.
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MORE SPACE. MORE POSSIBILITIES.
Custom Room Additions That Help Your Home Grow With You
The way we live changes over time. Families grow, work moves home, and the house that once felt perfect can start to feel crowded.
A custom room addition creates the space you need while preserving the home and neighborhood you already love.
As an experienced Design/Build contractor, Sun Spaces creates custom room additions that feel natural, functional, and fully integrated with the existing home.
DESIGNED AROUND REAL LIFE
Why Homeowners Invest in Room Additions
A custom room addition creates opportunities to improve how your home works without giving up the neighborhood, community, and lifestyle you’ve already built.
Create More Living Space
Whether your family is growing or you simply need more room to live comfortably, a custom room addition creates the extra space your home has been missing while maintaining the character of the original design.
Improve the Flow of Your Home
A well-designed room addition can do more than add square footage. It can improve how rooms connect, create better circulation, and make everyday living feel more open, functional, and enjoyable.
Adapt to Changing Needs
Life changes over time, and your home should be able to change with it. Room additions create flexibility for growing families, remote work, guests, hobbies, and the evolving needs of everyday life.
Stay in the Neighborhood You Love
A custom room addition allows you to gain the space you need without leaving the community you’ve invested in. Expand your home while remaining close to the people, places, and routines you enjoy most.
BUILT FOR THE WAY YOU LIVE
Why Homeowners Choose Sun Spaces
When you’re expanding your home, the contractor you choose matters just as much as the design itself. A successful room addition requires thoughtful planning, quality construction, and a finished result that feels fully integrated with the existing home. For more than 50 years, Sun Spaces has helped homeowners across the Greater Eastside create custom additions designed around the way they live.
DESIGNED AROUND NATURAL LIGHT
A Home That Feels More Open, Bright, and Connected
One of the most noticeable transformations homeowners experience after adding a sunroom is how much brighter the home feels. Many custom sunrooms are designed around large window systems, skylights, roof glazing, and open architectural layouts that bring daylight deep into the home. Natural light can make rooms feel larger, create a stronger connection to the outdoors, and help transform underused areas into some of the most inviting spaces in the house. Because every home is different, each design is customized to take advantage of views, orientation, and the surrounding property.
DESIGNED FOR THE GREATER EASTSIDE CLIMATE
Can a Sunroom Be Comfortable Year Round in Washington?
Yes, when it is designed and built correctly.
Homes throughout Bellevue, Kirkland, Redmond, Issaquah, and the Greater Eastside experience changing weather throughout the year. A properly designed sunroom should provide comfort, natural light, and usability regardless of the season.
Sun Spaces designs permanent residential additions intended for everyday use rather than temporary or seasonal enclosures.
Features may include:
The result is a bright, comfortable living space designed to be enjoyed throughout the year.
OUR SERVICES
A Simple, Collaborative Process
Virtual Assessment
We start with a conversation about your goals, budget, and ideas.
Custom Design
We design a solution that fits your home and how you plan to use it.
Planning & Permits
We handle the details so your project moves forward smoothly.
Expert Construction
Your space is built with attention to detail and long-term quality.
FREQUENTLY ASKED QUESTIONS