Home Additions on Whidbey Island
More Space. Same Home You Love.
Sometimes the right move isn’t finding a new home — it’s making the one you already have work better for your family.
Whether you need more room for a growing household, space for guests, a home office, or simply a better layout, a thoughtfully designed addition can transform the way you live while preserving everything you already love about your home.
Since 1992, Gilles Construction has designed and built home additions throughout Whidbey Island that blend seamlessly with existing homes. Our goal is simple: create spaces that feel like they’ve always belonged.
Thoughtfully Designed to Fit Your Home
A successful addition shouldn’t look like an addition.
It should feel like a natural extension of your home — matching its architecture, materials, flow, and character while creating the additional space your family needs.
Every project begins with understanding how you live today and how your needs may evolve in the years ahead.
Types of Home Additions
Whether you’re creating space for family, work, or entertaining, we build additions designed around your lifestyle.
Primary Suite Additions
Create a private retreat with expanded bedrooms, bathrooms, and walk-in closets.
Family Room Additions
Add comfortable gathering space that naturally connects with the rest of your home.
Kitchen Expansions
Open up the heart of your home with layouts designed for cooking, entertaining, and everyday living.
Guest Suites
Provide comfortable accommodations for visiting family and friends while maintaining privacy.
Home Offices & Flexible Spaces
Design spaces that adapt to remote work, hobbies, or changing family needs.
Garage & Workshop Additions
Expand storage, workspace, or vehicle protection while complementing your home’s existing design.
Why Build an Addition?
A carefully planned addition can help you:
- Stay in the neighborhood you love
- Increase functional living space
- Improve your home’s value
- Accommodate a growing family
- Create space for aging parents or guests
- Modernize the way your home functions
- Adapt your home for future needs
Our Process
Listening Comes First
Every project begins with a conversation about your goals, your home, and how additional space can improve everyday life.
Planning the Details
We’ll evaluate your existing home, discuss design possibilities, establish realistic budgets, and coordinate with architects or designers as needed.
Building With Care
Because additions connect new construction with existing homes, careful craftsmanship matters. Our experienced team works to ensure the finished space feels cohesive while minimizing disruption during construction.
Enjoy Your Expanded Home
The best additions don’t just add square footage — they make everyday living easier, more comfortable, and more enjoyable.
Why Families Choose Gilles Construction
Since 1992
More than three decades serving homeowners throughout Whidbey Island.
Family-Owned
You’ll work directly with a builder who values communication, relationships, and quality.
Seamless Design
We carefully integrate additions with your home’s existing architecture.
Local Knowledge
Understanding Whidbey Island permitting, neighborhoods, and building requirements.
Built Honestly
Craftsmanship, transparency, and long-term relationships have guided every project since the beginning.
Home Additions Throughout Whidbey Island
We build home additions for homeowners across Whidbey Island, including:
- Clinton
- Langley
- Freeland
- Greenbank
- Coupeville
- Oak Harbor
- Useless Bay
- Mutiny Bay
- Penn Cove
Every home — and every property — presents unique opportunities. Our decades of local experience help ensure your addition is thoughtfully designed, carefully planned, and beautifully integrated with your existing home.
Frequently Asked Questions
Can my addition match the existing style of my home?
Yes. Our goal is to design additions that blend naturally with your home’s architecture, materials, and finishes so the new space feels original to the house.
Do you help with design and planning?
Absolutely. We work closely with homeowners, architects, and designers to create additions that meet your goals while respecting your budget and property.
How long does a home addition take?
Every project is different, but timelines depend on the size of the addition, permitting requirements, and construction complexity. We’ll provide a clear schedule during the planning process.
Can I stay in my home during construction?
In many cases, yes. We’ll discuss your project’s construction plan and help determine the best approach for minimizing disruption.
Where do you build?
We build home additions throughout Whidbey Island, including Clinton, Langley, Freeland, Greenbank, Coupeville, Oak Harbor, and surrounding communities.