Short answer
West Seattle is several housing markets in one peninsula: 1900–1930 bungalows around the Junction and Admiral, mid-century homes across Delridge and High Point, and view-lot construction along Alki and the bluffs. Sloped and bluff-adjacent parcels are often mapped as environmentally critical areas, which changes the permit route for any exterior work.
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Four West Seattles, four remodel profiles
**The Junction and Admiral.** Craftsman bungalows and story-and-a-half homes from roughly 1905 to 1935, on standard city lots. Same profile as Ballard: knob-and-tube, galvanized supply, unreinforced foundations, no insulation, original fir trim worth saving.
**Alki and the bluff streets.** View property. A mix of original beach cottages, mid-century homes and substantial rebuilds. Slope, drainage and critical-area designation dominate the planning. Salt air is a real factor in exterior material selection.
**Delridge, High Point, Highland Park.** Predominantly mid-century — 1940s through 1960s ramblers, split-levels and daylight basements, plus significant newer development around High Point. Sound framing, dated layouts, generally more room to work on site.
**Fauntleroy and Arbor Heights.** Larger lots, a mix of mid-century and later construction, quieter streets and much easier logistics than the north end of the peninsula.
Which one you're in changes the project more than the address suggests.
Critical areas and slope
Substantial parts of West Seattle sit on the bluff faces above Puget Sound and the Duwamish, and those parcels are commonly mapped as **steep slope, landslide-prone or erosion hazard** environmentally critical areas.
On an ECA parcel, SDCI's rules push exterior work out of the fast permit lane: exterior work beyond window, siding and roofing replacement, foundation alterations, and projects disturbing more than 750 square feet of land all require full plan review. Practically that means a geotechnical report, engineered drainage and erosion control, and a permit timeline measured in months.
Interior remodels on the same parcels are usually unaffected. So the first question on any West Seattle exterior project is: is this parcel mapped? SDCI's parcel mapping answers it in about two minutes and can save two months.
Access, and the bridge question
The West Seattle Bridge closed in 2020 and reopened in September 2022. Access is normal again, and it is not the constraint it was.
What still matters:
- **Peninsula geography.** Everything comes in over a small number of routes. Deliveries and concrete pours are worth booking with margin, particularly at commute times.
- **Steep streets on the bluff.** Same issue as Queen Anne — long carries, constrained staging, difficult deliveries.
- **Better site access in the south and west.** Delridge, Fauntleroy and Arbor Heights lots typically have driveways and room to stage, which is a genuine cost advantage.
What people remodel in West Seattle
**Opening the main floor of a bungalow.** Kitchen to dining, usually a bearing wall, header and point loads. $15,000–$40,000 on top of the kitchen.
**Adding a primary suite over the garage or in the attic.** Common in Admiral and the Junction. Structural — attic joists in a 1920s house were sized as ceiling joists.
**Reworking a mid-century plan in Delridge or High Point.** Removing the wall between kitchen and living, adding a bathroom, insulating and replacing windows. Good structure, dated layout — a high-return remodel profile.
**View glass and decks on the bluff.** Enlarged openings, sliders, and outdoor space. Structural, and on an ECA lot subject to full review and geotechnical input. Deck footings on a slope are engineered elements.
**DADUs.** Seattle permits up to two accessory dwelling units per lot with no parking requirement, and West Seattle's larger south-end lots often accommodate a detached unit comfortably.
**Salt-air exterior work.** On Alki and the bluff, fastener corrosion, finish failure and accelerated weathering are real. Stainless fasteners, appropriate flashings and a coating schedule are worth specifying rather than defaulting.
Costs
Seattle rates apply across the peninsula. The variables:
