Do I need an architect for a home addition in Seattle?

For additions over 200 sq ft or those requiring structural changes, a licensed architect is typically required for building permits in Seattle and Kirkland. Piper Cole Architects can guide you through the full permitting process.

How long does a residential architecture project take?

Design phases typically take 3–6 months depending on scope. Permitting in the Seattle area can add 2–6 months. Construction depends on complexity. Piper Cole Architects coordinates all phases to keep your project on schedule.

What is the cost of a residential architect in Seattle?

Architect fees for residential projects in the Seattle area typically range from 8–15% of total construction cost, or $150–$250/hour for hourly work. Contact us for a project-specific estimate.

Residential Architecture in Seattle & Kirkland, WA

Piper Cole Architects has been designing exceptional homes across the Seattle metro area since 2000. With over 800 residential projects delivered, our award-winning team brings creativity, precision, and deep local knowledge to every commission.

Our Residential Services

Custom New Home Design — From the first sketch to move-in day, we design homes that reflect your vision and suit your site.
Home Additions — Expanding your home requires expertise in seamlessly integrating new with existing. We excel at additions that feel like they were always there.
Whole-Home Renovations — We reimagine spaces from the inside out, improving flow, light, and livability while honoring what makes your home special.
Interior Architecture — Staircases, built-ins, ceiling details, and spatial transitions — the interior decisions that define how a home feels.

Areas We Serve

We work with homeowners throughout the Seattle Eastside and greater Pacific Northwest, including Kirkland, Seattle, Bellevue, Redmond, Mercer Island, Issaquah, Sammamish, Bothell, and Woodinville.

Our Approach

Every residential project begins with listening. We take time to understand how you live, what you value, and how your home can better serve your daily life. From initial consultation through construction administration, we are your advocate and partner.

Frequently Asked Questions

How much does a residential architect cost in Seattle?

Architectural fees for residential projects in the Seattle area typically range from 8% to 15% of construction cost, depending on scope and complexity. We provide transparent fee proposals at the outset of every project.

Do I need an architect for a home addition in Washington State?

For additions over a certain square footage or that involve structural changes, Washington State and most local jurisdictions require stamped architectural drawings. An architect also ensures your addition meets code and adds lasting value to your home.

How long does the residential design process take?

A typical residential project moves through design and permitting in 6 to 12 months, depending on complexity and jurisdiction. We manage the schedule closely to keep your project on track.

Start Your Residential Project

Ready to talk about your home? Schedule a free consultation with Piper Cole Architects today.

Explore Our Other Services

Residential Architecture — Custom homes, ADUs, and additions across the Seattle Eastside.
Commercial Architecture — Office, retail, and mixed-use projects in the greater Seattle area.
Interior Architecture — Spatial planning, interior detailing, and finish selections.
Renovation & Restoration — Historic renovations and whole-home remodels.
Our Design Process — See how we guide projects from concept to completion.

From Our Blog

Ready to Start Your Project?
Contact Piper Cole Architects for a free initial consultation. We serve Kirkland, Seattle, Bellevue, Redmond, and the greater Eastside.

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