Kirkland Home Addition Contractor

Kirkland Home Additions — Room Additions & House Expansions

Need more space without moving? New Day Construction is your trusted Kirkland home additions contractor. We build seamless house expansions, room additions, and bump-outs across the Seattle Eastside. With 21+ years of experience and 250+ completed projects, our team creates additions that look like they’ve always been part of your home—adding comfort, function, and value.

From second-story additions and kitchen expansions to in-law suites (ADU-style), sunrooms, and garage conversions, we handle everything: planning, permits, and construction.

Why Choose New Day Construction for Your Kirkland Home Addition

• Local & licensed: Serving Kirkland, Bellevue, Redmond, Bothell, and Woodinville
• Design-build expertise: 3D renderings, engineering, and clear planning
• Seamless results: Additions that match your home’s style and structure
• Upfront pricing: Detailed estimates with no hidden costs
• Clear communication: Regular updates and organized job sites
• Warranty-backed work: Quality craftsmanship you can trust

How to Find the Best Home Addition Contractor in Kirkland

1. Local knowledge: Choose a builder familiar with Kirkland codes, permits, and zoning.
2. Proven results: Look for contractors with a track record of second stories, expansions, and remodels.
3. Full design-build: A team that handles design and construction avoids delays and budget issues.
4. Transparent estimates: Itemized costs for materials, finishes, and labor.
5. Good communication: One project manager and weekly updates keep projects stress-free.
6. Warranty support: Strong warranties give peace of mind long after completion.

At New Day Construction, we meet all these standards—making home additions smooth and predictable.

Types of Home Additions We Build in Kirkland

Every property has different needs. We design house additions that fit your family, budget, and lifestyle.

• Second-Story Additions: Double your space without losing your yard. Ideal for new bedrooms, a primary suite, or a loft.
• Bump-Outs: Add 100–300 sq ft to your kitchen, bath, or living area for more comfort and light.
• In-Law Suites (ADU-Style): Private spaces with a bedroom, bath, and kitchenette—great for aging parents or rental income.
• Sunrooms: Bright spaces with quality windows and insulation for year-round relaxation.
• Garage Conversions: Turn a garage into a guest suite, home office, or rental unit.
• Room Additions: Add a home office, playroom, dining room, or expand your living room with open layouts and vaulted ceilings.
• Wing Additions: Multi-room projects such as a new suite, mudroom + pantry, or guest wing.
• Basement Conversions: Finish your basement into a gym, media room, or rental-ready apartment.
• Decks & Outdoor Living: Composite decks, covered patios, or outdoor kitchens built for the Pacific Northwest.

Benefits of a Home Addition in Kirkland

• More space: Add bedrooms, living areas, or work-from-home spaces.
• Rental income: Create a private suite or ADU to offset your mortgage.
• Family living: Comfortable areas for aging parents or returning children.
• Higher property value: Additions make homes more attractive in Kirkland’s market.
• Energy efficiency: New windows, insulation, and HVAC lower bills.
• Curb appeal: Additions that match your home improve its look inside and out.

Average Cost & Timeline

Costs depend on size, structure, and finishes. Most room additions and bump-outs start in the mid-five figures. Larger second-story or wing additions cost more. We provide clear, itemized estimates so you can plan with confidence.

Timelines for most additions range from 6–9 months, including design, permits, and construction. The schedule depends on project scope and city reviews.

Our Home Addition Process

1) Consultation & Planning

We review your goals, budget, and property to see what’s possible.

2) Design & Engineering

Our team prepares custom layouts, 3D renderings, and construction plans.

3) Permitting

We manage city approvals and handle all required permits.

4) Construction

Our crew builds with care, keeping the site safe and clean while staying on schedule.

5) Final Walkthrough & Warranty

You review the finished project with us, and we provide warranty-backed support.

Serving Kirkland & the Seattle Eastside

Kirkland • Bellevue • Redmond • Bothell • Woodinville • Kenmore • Sammamish • Issaquah

Home Additions FAQ — Kirkland, WA

Do I need a permit for a home addition?

Yes. We handle permits, inspections, and city coordination to keep your project on track.

Will my addition match my home?

Yes. We align siding, rooflines, windows, and interiors so it looks like part of the original build.

Can you build space for aging parents or rental income?

Yes. We design in-law suites and ADU-style units that are private, safe, and rental-ready.

What affects cost the most?

Size, structure, site conditions, and finish choices have the biggest impact.

Do you help with design?

Yes. We guide you with layouts, finishes, and 3D previews so you can visualize your new space.

Start Your Kirkland Home Addition

Ready to expand your home with more space and value? From second-story additions to in-law suites and sunrooms, New Day Construction is Kirkland’s top choice.

Call 425-584-2936 or request your free consultation today. Let’s design and build an addition that fits your family and future.

Licensed • Bonded • Insured — Washington State Contractor License: NEWDADC823QR