Architect in Seattle, WA | Residential Architecture | Piper Cole

*By David Meade, AIA, NCARB | Piper Cole Architects*

> TL;DR: Piper Cole Architects is a licensed AIA architecture firm serving Seattle homeowners from our Kirkland base — 30 minutes from most Seattle neighborhoods. I’m David Meade, AIA, NCARB, and my team handles custom homes ($350K–$1.2M), additions ($250K–$600K), and ADUs ($150K–$450K) across the greater Seattle metro. If you’re planning a project, call us at 425-753-6452.

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Why Seattle Homeowners Hire an Architect from Kirkland

I get this question regularly: “David, why would I hire an architect from Kirkland for my Seattle project?” The honest answer is geography matters less than expertise and relationships. Our office is 30 minutes from Capitol Hill, Queen Anne, Ballard, and Magnolia. We have active permit applications in Seattle Department of Construction & Inspections (SDCI) right now. We know the plan reviewers. We know which Seattle neighborhoods trigger Mandatory Design Review and which don’t. That local code knowledge is worth far more than an office address inside city limits.

Piper Cole Architects is a full-service residential architecture firm. I’m a licensed architect in Washington State, AIA member, and NCARB certified — meaning my credentials are recognized nationally. For Seattle homeowners, that matters because your project deserves someone who’s accountable: licensed professionals carry professional liability insurance and are legally responsible for our designs in a way that unlicensed designers are not.

Projects We Handle in Seattle

Seattle’s housing stock is diverse — craftsman bungalows in Columbia City, mid-century ranches in Magnolia, view properties on Queen Anne Hill, dense urban infill lots in Fremont. We work across all of it. Here’s what we design most often for Seattle clients:

Custom Homes

New construction on Seattle lots is complex. You’re navigating FAR limits, setbacks, height limits, tree canopy ordinances, and often stormwater management requirements. We handle every dimension of that — from lot feasibility analysis before you close on land through construction administration when the framing goes up.

Additions

Seattle’s older homes frequently have undersized kitchens, master suites that don’t meet modern expectations, or no room for a home office. A well-designed addition solves all three without destroying what makes the original house charming. We’ve added second stories, rear family room expansions, and attached garages across dozens of Seattle neighborhoods.

ADUs (Accessory Dwelling Units)

Seattle allows two ADUs per lot — a backyard cottage (DADU) plus an attached or internal ADU (AADU). The rental income potential is significant: $2,000–$3,500/month for a well-located Seattle ADU. We design both types and manage the full permit process through SDCI.

Whole-House Remodels

When a home needs structural reconfiguration — opening the floor plan, adding a daylight basement, or a full gut renovation — you need stamped architectural drawings. We produce them.

Seattle Neighborhoods We Serve

We actively work in:

Neighborhood	Common Project Types
Capitol Hill	ADUs, whole-house remodels, row home additions
Queen Anne	View home expansions, custom infill
Magnolia	Additions, custom homes on large lots
Ballard	DADUs, garage conversions, additions
Fremont	Urban infill custom homes, ADUs
Madison Park	Waterfront adjacency, high-end additions
Leschi	Hillside view home additions
Mount Baker	Craftsman renovations, additions
Seward Park	Large-lot custom homes, ADUs

Seattle Permitting: What to Expect in 2026

Seattle’s permit timeline is one of the most common questions I field. SDCI has three main tracks relevant to residential work:

Standard Review: Full plan review for new construction and major additions. As of 2026, expect approximately 5–7 months for initial permit issuance after a complete application. Complex projects with design review add 2–4 months on top.

SDCI Streamlined Review: Available for certain additions and ADUs meeting specific criteria. Faster — approximately 3–4 months from complete application. Not every project qualifies.

Over-the-Counter (OTC): Simple work like interior remodels without structural changes. Can be issued same-day to a few weeks. Rarely applicable to the projects we handle.

The 2026 Seattle permit fee schedule ties fees to project valuation. For a $500,000 addition, expect permit fees in the range of $8,000–$14,000 depending on the specific permit types required. We include a permit fee estimate in every project proposal.

Seattle’s Unique Design Challenges

Seattle is not a simple city to build in. A few things that surprise clients who’ve built elsewhere:

Steep Lots and Landslide Hazard Zones. Much of Seattle sits in Landslide Hazard Areas or Steep Slope Overlay Zones. Projects in these areas require geotechnical reports and often trigger special structural requirements.

View Corridor Protection. Properties near Puget Sound, Lake Washington, Lake Union, or the Ship Canal face height restrictions that protect neighbor view corridors. We study these early in schematic design.

Seattle Design Review. Projects in Urban Design Framework areas or exceeding certain size thresholds go through Mandatory or Administrative Design Review — a public process that evaluates massing, materials, and relationship to the street. We’ve navigated both.

Tree Canopy Ordinance. Seattle’s exceptional tree ordinance (updated in recent years) significantly limits which trees can be removed. We do tree surveys early to prevent surprises that would force a redesign.

Shoreline Management Act. Properties within 200 feet of Puget Sound, major lakes, or streams fall under shoreline overlay regulations with additional setbacks and use restrictions.

What Does an Architect Cost for a Seattle Project?

Cost ranges for 2026 Seattle projects (construction cost, not including architect fees):

• Custom home: $350,000–$1,200,000+ (varies by size, finishes, lot complexity)
• Addition (500–1,200 sqft): $250,000–$600,000
• DADU/backyard cottage: $260,000–$480,000
• AADU/garage conversion ADU: $80,000–$220,000
• Whole-house remodel: $200,000–$600,000+

Architect fees at Piper Cole Architects typically run 8–12% of construction cost for full service (design through construction administration). For a $350,000 addition, that’s $28,000–$42,000 for an architect who manages your permit, coordinates your engineer, reviews every contractor invoice, and catches construction errors before they become expensive problems.

Why PCA vs. an Interior Designer or Design-Build Firm?

Interior designers are talented at finishes and space planning but cannot stamp permit drawings. In Washington State, RCW 18.08 governs architectural practice — only licensed architects can provide architectural services for permitted structures. If your project requires permit drawings (almost everything structural does), you need a licensed architect.

Design-build firms are contractors who also offer design. The conflict of interest is real: the entity designing your project is the same one building it and marking up every subcontractor. You have no independent advocate. At Piper Cole, my loyalty is to you, not to a construction budget I’m trying to maximize.

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Frequently Asked Questions

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Work With Piper Cole Architects

If you’re planning a custom home, addition, or ADU in Seattle, I’d like to hear about your project. Piper Cole Architects offers a free initial consultation — we’ll talk through your goals, your site, and your budget, and I’ll give you an honest assessment of what’s achievable. No pressure, no commitment.

Call us at 425-753-6452 or use the link below to schedule directly.

Contact Piper Cole Architects

Explore more:

• Architect in Kirkland, WA
• Home Addition Architect Seattle
• ADU Architect Kirkland
• Residential Architecture Services

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Sources

• Seattle Department of Construction & Inspections (SDCI) — Permit Timeline Dashboard, 2026: seattle.gov/sdci
• Washington State Legislature, RCW 18.08 — Architecture: app.leg.wa.gov
• Seattle Municipal Code 23.44 — Single Family Residential: seattle.gov
• Seattle 2035 Comprehensive Plan, Urban Design Framework: seattle.gov/opcd