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Key takeaways
- On a shoreline lot, zoning is only the start. The Shoreline Master Program, critical areas and tree rules all subtract buildable area.
- Shoreline setback is measured from the ordinary high water mark, not the property line.
- As a planning range, new custom homes run $400 to $900 per square foot, with prime waterfront toward the top of that range.
- Plan on 18 to 30 months from design start to move in, including 6 to 10 months of permitting for a new house in Seattle; shoreline review can add time.
- The most valuable hour on a waterfront project is mapping buildable area before you make an offer.
Waterfront homes are the heart of this practice. They are also the projects where the difference between a good architect and a cheap set of drawings shows up as a year of delay.
Why lakefront is a different project
On a normal lot, zoning sets your envelope. On a shoreline lot you have zoning plus the Shoreline Management Act, a local Shoreline Master Program, critical areas rules, often tree retention, and sometimes a geotechnical requirement. Each one subtracts from your buildable area before you draw a line.
- Shoreline setback measured from ordinary high water mark, not the property line.
- Vegetation conservation areas that restrict what can be cleared.
- Steep slope and critical areas buffers on many Lake Washington parcels.
- View corridor and privacy constraints from neighbours on both sides.
Shoreline rules and buildable area
In Kirkland, shoreline jurisdiction on Lake Washington, Forbes Creek and North Creek is governed by the Kirkland Shoreline Master Program under KZC Chapter 83. Development inside that jurisdiction triggers a separate substantial development or exemption review on top of the building permit.
The single most valuable hour on a waterfront project is the one spent mapping actual buildable area before an offer is made. I have told buyers to walk away from lots.
Before you buy the lot
Have the buildable area checked first
Call David with the address. A short conversation can save you from a lot that will not build what you want.
What lakefront costs per square foot
| Scope | Range, Seattle metro 2026 |
|---|---|
| New custom home, planning range | $400 to $900 per sq ft |
| High finish, structural glass, difficult site | Top of the $400 to $900 per sq ft range |
| Medina, Clyde Hill and prime waterfront | Toward the top of the $400 to $900 per sq ft range |
| Architect fee, design and permit | Fixed fee, most $10,000 to $200,000 |
The new homes we design are typically $2M to $6M to build. Market ranges for planning, not a quote.
What pushes waterfront to the top of the range: shoreline permitting time, geotechnical and shoring, moisture detailing that has to be right, and the glass. Structural glazing with a lake view is the single most expensive square footage in the house.
Timeline, honestly
On a custom home, plan on 18 to 30 months from design start to move in: permitting typically takes 6 to 10 months for a new house in Seattle and construction 12 to 18 months. On waterfront, shoreline review can add to that; how the shoreline exemption works is set out separately.
Choosing an architect for waterfront
Ask three questions. Have you taken a shoreline substantial development permit through this specific jurisdiction. What did you find on the last waterfront geotechnical report that changed the design. Who will actually draw my house.
On every project here the answer to the last one is David.
Talk to the architect
Waterfront work, principal-led
Call 425 753 6452 or WhatsApp David directly. The first feasibility check is free, no obligation.