Short answer
Wallingford and Green Lake are among the most consistent housing stocks in Seattle — largely 1905 to 1930 Craftsman and box houses on regular platted lots, most with full basements and alley access. That consistency makes projects predictable: expect knob-and-tube, galvanized supply and no insulation, and expect a basement and an alley that make DADUs and conversions genuinely feasible.
---
Why the stock here is so uniform
Both neighborhoods were platted and built out in a compressed window — the streetcar era, roughly 1905 through 1930. The result is block after block of Craftsman bungalows, box houses and story-and-a-half homes on 40- to 50-foot lots, with a rear alley and a detached garage.
For a contractor, that uniformity is useful. The framing, the plumbing routes, the basement layout and the failure modes repeat from house to house. We can usually tell you what's behind a Wallingford wall before we open it, because we opened the same wall on the same house plan two streets over.
What's consistently there
**Knob-and-tube wiring** in some or all of the house. It comes out where disturbed, and any substantial remodel disturbs a lot of it.
**Galvanized supply piping,** corroding from the inside. Low pressure at upstairs fixtures is the classic sign.
**A full basement,** usually with 7 to 8 feet of headroom and a concrete floor, sometimes with an old coal chute or a former sleeping porch above.
**Unreinforced foundation walls** with no anchor bolts connecting the framing to the concrete. A seismic retrofit is straightforward here and much cheaper while the crawlspace or basement perimeter is already accessible.
**No insulation in the exterior walls,** and often none in the attic beyond a thin original layer.
**Original fir trim, hard-coat plaster, and frequently a built-in buffet or bookcases.** Worth a conversation before demo. These are better than what would replace them and expensive to reproduce.
**Alley access,** which is a real logistical advantage — dumpster placement, material staging and crew parking are all easier than in Ballard or Queen Anne.
The four projects we do most here
1. Open the kitchen to the dining room
The signature Wallingford remodel. The wall is almost always bearing — carrying the second floor or the attic joists — so it means an engineered header, point loads carried down to the foundation, and a permit. $15,000–$40,000 on top of the kitchen work itself.
Worth noting: many of these houses have a built-in buffet in that wall. Losing it is a real loss. There's usually a version of the design that relocates or reuses it.
2. Finish or convert the basement
Full-height basements make this feasible where it isn't in Ballard. Three gates:
- **Moisture first.** Grade, downspouts, perimeter drain. Finishing over a damp basement is how you build a mold job.
- **Ceiling height.** Code requires a minimum habitable ceiling height; ducts and beams eat into it. Measure before you plan.
- **Egress.** A basement bedroom needs a conforming egress window or door. Cutting a window well into a foundation wall is structural work.
3. Add a DADU in the back
This is where Wallingford and Green Lake shine. Seattle allows up to two accessory dwelling units per lot, does not require parking for them, and exempts them from certain standards. With alley access and a standard-depth lot, a detached backyard cottage is often straightforward on setbacks — which is exactly the constraint that stops it on narrow Ballard lots.
The existing detached garage is often the starting point, either converted or replaced.
4. Dormer the attic
Story-and-a-half houses have floor area up there and no headroom. A shed dormer creates a primary bedroom and bath. Structural project: those attic joists were sized as ceiling joists and generally need sistering or replacement. Full plan review, engineer's stamp, $120,000–$250,000+.
Costs
Standard Seattle rates apply. Two adjustments in this neighborhood, one in each direction:
