
Home Additions In Seattle
Home Additions
With Over 20 Years Of Experience, GLC Creates Seamless Home Additions That Blend Perfectly With Your Existing Home—Built To Last In The Pacific Northwest.

Proudly Based In
Seattle, WA
About This Service
Expand Your Home Without Moving
Home additions offer the perfect solution for Seattle homeowners who love their neighborhood but need more space. Whether it's a growing family, home office needs, or simply more room to enjoy, our expert addition team delivers seamless expansions that match your existing home's architecture and style.
Stay In Your Neighborhood
Love your Seattle location but need more space? Home additions let you stay put while gaining the square footage your family needs.
Increase Property Value
Quality home additions significantly increase resale value in Seattle's competitive real estate market—often more than the construction cost.
Customized For Your Needs
Design every detail to match your lifestyle—master suites, home offices, expanded kitchens, or entertainment spaces built your way.
Seamless Integration
Our additions blend perfectly with your existing home—matching architecture, materials, and style so it looks original, not added.

Our Results
Before & After Transformations
Browse through our portfolio of additions projects across Seattle and the Puget Sound. Each transformation showcases our commitment to quality craftsmanship and attention to detail.


Second Story Addition — Fremont, Seattle


Rear Family Room Addition — Magnolia, Seattle
Our Process
How We Work
We follow a proven process to ensure your project is completed on time, within budget, and to your exact specifications.

Design Consultation
We assess your property, discuss goals, and create addition designs that integrate seamlessly with your home's architecture.

Engineering & Permits
Structural engineering, blueprints, and complete permit handling with Seattle's building department for a smooth approval process.

Construction
Expert foundation work, framing, roofing, and finishing with minimal disruption to your daily life and timeline adherence.

Final Walkthrough
Complete inspection, finish work touch-ups, and orientation to your new space—ensuring total satisfaction before project completion.
Why Choose Us
Why Homeowners Trust GLC Remodeling

50+
Projects Completed
Across The Puget Sound
Transparent Pricing
We provide detailed estimates upfront, so you know exactly what to expect. No hidden costs, no surprises—just honest pricing for quality work.

Built to Last
Quality Materials
We source premium materials that withstand Seattle's climate while delivering lasting beauty and performance for your additions project.
Permit Handling
We navigate Seattle's permitting process for you
Timely Completion
Projects completed on schedule, every time
Clear Communication
Regular updates throughout your project
Locally Owned & Operated
As Seattle natives, we understand the unique needs of Puget Sound homeowners. We're your neighbors, committed to building lasting relationships through exceptional additions services.

What Our Clients Say
Additions Reviews
Additional Services
Explore Our Other Remodeling Services
Common Questions
Home Addition FAQs
Have questions about your upcoming kitchen remodel? Here are the answers to the most common questions we receive from homeowners.
Home additions typically take 3-6 months depending on size and complexity. Second-story additions may take 4-8 months.
Yes, all home additions require permits from Seattle's Department of Construction and Inspections. We handle all permitting.
Absolutely. We match materials, architectural style, and finishes so your addition looks like it's always been part of your home.
Home additions range from $250-$550 per square foot depending on type and finishes. We provide detailed quotes for your specific project.

Ready to Get Started?
Transform Your Home With Expert Additions Services
Schedule your free consultation today and discover why Seattle homeowners trust GLC for their additions needs. No pressure, just honest advice and expert guidance.

Let's Discuss Your Additions Project
Request A Free Quote
Fill out the form below and one of our additions experts will contact you within 24 hours to schedule your free in-home consultation.
Free In-Home Consultation
We come to you—no showroom visits needed
24-Hour Response Time
We value your time and respond quickly
4.9 Star Rated
Trusted by homeowners throughout the Puget Sound
Prefer to call?
818-293-4469Request a Free Quote
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