1. Home
  2. Blog
  3. Home Additions and Second Stories

Topic

Home Additions and Second Stories

Second storeys, room additions, primary suites and bump-outs: what they cost, what they need and how they get permitted.

Guides

Residential architecture project by Piper Cole Architects, Seattle Eastside
Home Additions and Second Stories

Are second story additions worth it in Seattle and on the Eastside?

Second stories run $350 to $550 per sq ft on the Eastside, and foundation work adds $30k to $100k. When going up pays off, and when it does not.

David Meade · September 17, 2026
Interior of Seattle Eastside home designed by David Meade AIA, Piper Cole Architects
Home Additions and Second Stories

Room addition cost in Kirkland and the Eastside

Bedroom additions $85k to $165k, primary suites $220k to $400k in Kirkland. Real 2026 ranges, permit timelines and where the money goes.

David Meade · September 17, 2026
Modern single-story custom home with flat roof and attached garage
Home Additions and Second Stories

Second story addition over a garage

Building over an attached garage is often the cheapest square footage you can add. Real 2026 Seattle costs, the slab problem, and when it works.

David Meade · September 17, 2026
Home Addition in Seattle: Architect vs. Contractor, Which Do You Need?
Home Additions and Second Stories

Home Addition in Seattle: Architect vs. Contractor, Which Do You Need?

Home addition in Seattle: do you need an architect or a contractor first? How to decide, and what each brings. Piper Cole Architects, Kirkland WA.

David Meade · July 3, 2026
Residential architecture project by Piper Cole Architects, Seattle Eastside WA
Home Additions and Second Stories

Second Story Addition Architect in Bellevue, WA

Going up instead of moving in Bellevue: the foundation question, real 2026 costs and the permit timeline. Call a licensed architect direct.

David Meade · July 2, 2026
Residential architecture project by Piper Cole Architects, Seattle Eastside WA
Home Additions and Second Stories

Home Addition Architect in Kirkland, WA

Second stories, room additions and primary suites in Kirkland, with the structural work and the permit set handled. Call David Meade on 425 753 6452.

David Meade · July 1, 2026
Residential architecture project by Piper Cole Architects, Seattle Eastside WA
Home Additions and Second Stories

Second Story Addition Architect in Kirkland, WA

Adding a floor in Kirkland: whether your foundation takes it, what it costs, and the permit path. Licensed architect, call 425 753 6452.

David Meade · July 1, 2026
Residential architecture project by Piper Cole Architects, Seattle Eastside WA
Home Additions and Second Stories

Kitchen Addition Architect on Seattle’s Eastside

Kitchen addition architect on the Seattle Eastside. Expand and reconfigure with structural, permit-ready design from Piper Cole Architects.

David Meade · June 29, 2026
Residential architecture project by Piper Cole Architects, Seattle Eastside WA
Home Additions and Second Stories

Second Story Addition Architect on Seattle’s Eastside

Second story addition architect for the Seattle Eastside. Structural checks, permit drawings and real 2026 costs. Call David Meade direct on 425 753 6452.

David Meade · June 27, 2026
Residential architecture project by Piper Cole Architects, Seattle Eastside WA
Home Additions and Second Stories

How Long Does a Home Addition Take in Seattle? Realistic 2026 Timeline

How long does a home addition take in Seattle? Phase-by-phase timeline: design, permits, bidding, construction: with realistic 2026 numbers from Piper.

David Meade · May 30, 2026
Contemporary multi-level home with a second-story balcony and glass facade in the Seattle area, illustrating a vertical addition by Piper Cole Architects.
Home Additions and Second Stories

Second Story Addition vs. Ground Floor Addition: Which Is Right for Your Seattle Home?

Adding up vs. adding out: comparing second story and ground floor additions for Seattle homeowners. Cost, zoning, disruption, and ROI analysis.

David Meade · May 30, 2026
Residential architecture project by Piper Cole Architects, Seattle Eastside WA
Home Additions and Second Stories

Home Addition Architect in Seattle, WA

What an architect does on a Seattle home addition, what it costs, and when a contractor alone is enough. Straight answer from a licensed architect.

David Meade · May 27, 2026
Rear exterior of a modern two-story home with large windows and mixed stone-and-siding cladding in the Seattle area, a second-story addition designed by Piper Cole Architects.
Home Additions and Second Stories

What a Second Story Addition Costs in Seattle

What a second story really costs in Seattle, the foundation question that decides it, and when going up beats moving. Call David direct on 425 753 6452.

David Meade · May 27, 2026
Updated craftsman-style home with a covered front porch and mature landscaping in the Seattle area, a home-addition project by Piper Cole Architects.
Home Additions and Second Stories

What a Home Addition Costs in Seattle

What a Seattle addition costs by type in 2026, what pushes it up, the fees beyond construction, and an estimator for your own size. Call 425 753 6452.

David Meade · May 26, 2026
Cedar and glass house at dusk, designed by Piper Cole Architects

Next step

Have a project in mind?

Call David Meade directly. The first feasibility check is free and usually takes about a day.

Free feasibility check

Send the address and what you have in mind. David replies within one business day with what the site and the code are likely to allow.

    What are you planning?
    Your details

    No obligation. Your details go to David only. See the privacy policy.

    Chat with David on WhatsApp