DADU feasibility · Wedgwood & View Ridge

Building a DADU in Wedgwood & View Ridge

Only about one lot in ten across Wedgwood's 5,821 parcels is under 5,000 sq ft, and 78.3% of homes are detached. Its 32% canopy and 13.3% potential-landslide mapping mean the trees and the eastern ridge still get a say.

If you are looking for the most DADU-friendly lot geometry in Seattle, this is it — and the tree canopy is the reason projects still get reshaped. This profile is measured from City of Seattle open data across 5,821 parcels in Wedgwood/View Ridge — not estimated, and not the same numbers as any other neighborhood on this site.

A detached accessory dwelling unit of the kind Seattle homeowners build in Wedgwood & View Ridge.
Example of a completed Seattle DADU — not a Wedgwood & View Ridge property.
89%of lots are 5,000 sq ft or larger
6.9%mapped steep slope (40%+)
32%tree canopy cover
78.3%of homes are detached houses

Lot sizes in Wedgwood & View Ridge

Only about one lot in ten is under 5,000 sq ft. The majority sit between 5,000 and 7,200, and a large block is above 7,200 — this is the original SF 7200 platting, and it shows. Physical fit is almost never the problem in Wedgwood.

Under 3,200 sq ft2613,200 – 5,0003605,000 – 7,2002,9407,200 – 10,0001,666Over 10,000594

Parcel counts by lot size, Wedgwood/View Ridge. Source: King County parcels via Seattle's ADUniverse dataset.

11% of parcels here are under 5,000 sq ft and 89% are 5,000 sq ft or larger — a high share among the 18 areas profiled here. Seattle repealed the old 3,200 sq ft minimum lot area for a DADU, so small lots are no longer excluded; they are simply governed by the floor-area budget instead.

What the ground looks like

Stable ground with modest steep slope along the ravine edges and a pocket of potential-slide ground near the eastern ridge. The real constraint is canopy: this is one of the most heavily treed areas in the city.

Steep slope (40%+)median 7.7%6.9%Potential landslidemedian 4.4%13.3%Liquefaction-pronemedian 8.7%4.3%Tree canopymedian 26.9%32%

Wedgwood & View Ridge against the median of the 18 Seattle areas profiled here. Hazard layers clipped to the neighborhood boundary; canopy is area-weighted by census block group.

What decides feasibility here, in order

Ranked by what this neighborhood's own measurements say — not a generic checklist.

  1. 01

    Slope and landslide-prone ground

    6.9% of Wedgwood & View Ridge is mapped as steep slope (40% or greater) and 13.3% as potential landslide area, against Seattle medians of 7.7% and 4.4% across the areas profiled here. Land inside an Environmentally Critical Area under SMC 25.09 triggers additional review and, in practice, a geotechnical report before design.

  2. 02

    Protected trees

    Tree canopy covers 32% of Wedgwood & View Ridge (Seattle median here: 26.9%). Seattle's tree code (SMC 25.11) protects trees by tier, and a Tier 2 tree with its root protection area falling across your rear yard can move or shrink a cottage even on a large lot.

  3. 03

    Side sewer, water and electrical capacity

    7% of buildings here predate 1940 and 65% were built between 1940 and 1975. Older stock means older side sewers and smaller electrical services — the two utility findings that most often reset a DADU budget.

  4. 04

    Liquefaction and soil conditions

    4.3% of Wedgwood & View Ridge sits on mapped liquefaction-prone soils (Seattle median here: 8.7%). This rarely stops a project, but it changes foundation design and belongs in the budget before you price a build.

  5. 05

    Physical fit on a small lot

    11% of parcels here are under 5,000 sq ft. Lot size no longer disqualifies a DADU, but on a tight lot the lot-wide FAR and lot-coverage budget — which ADU floor area now counts toward — usually binds before setbacks do.

Zoning and utilities

Zoning mix

  • SF 50003,338 parcels
  • SF 72002,145 parcels
  • LR2158 parcels
  • LR363 parcels
  • LR138 parcels

94.2% of parcels are Neighborhood Residential or Residential Small Lot; 4.7% are Lowrise. Zone labels reflect the parcel dataset's legacy single-family categories, which map into today's Neighborhood Residential zone under Ordinance 127376.

Housing age

  • Before 19407%
  • 1940 – 197565%
  • After 197526%

Predominantly mid-century. Panel capacity and the distance from the house to the rear of a deep lot — which drives trenching cost for sewer, water, and power — are the two costs people underestimate.

Wedgwood & View Ridge DADU questions

Can I build a DADU in Wedgwood & View Ridge?

In almost all cases the zoning allows it. 94.2% of parcels in Wedgwood & View Ridge sit in Neighborhood Residential or Residential Small Lot zoning, where detached accessory dwelling units are permitted, and Seattle removed both the old minimum-lot-size test and the owner-occupancy requirement. The real question is whether a compliant cottage physically fits your lot and whether utilities can serve it.

How big can a DADU be in Wedgwood & View Ridge?

The citywide caps apply: 1,000 sq ft of gross floor area for an ADU with up to two bedrooms, or 1,200 sq ft with three or more. On top of that, your lot has a single FAR and lot-coverage budget shared with the existing house — which is what actually limits most projects. With 89% of Wedgwood & View Ridge parcels at 5,000 sq ft or larger, most owners here have room to reach the cap rather than being cut off by it.

What is most likely to block a DADU in Wedgwood & View Ridge?

Slope and landslide-prone ground — 6.9% of Wedgwood & View Ridge is mapped as steep slope (40% or greater) and 13.3% as potential landslide area, against Seattle medians of 7.7% and 4.4% across the areas profiled here. Land inside an Environmentally Critical Area under SMC 25.09 triggers additional review and, in practice, a geotechnical report before design.

Read these before you spend anything on Wedgwood & View Ridge

Free, written for Seattle's code, and picked from Wedgwood & View Ridge's own numbers rather than a generic list.

89% of Wedgwood & View Ridge lots are 5,000 sq ft or larger. Front, side, rear and the alley case are what turn that into a buildable rectangle.Seattle DADU Setback Requirements (2026): Front, Side, Rear, Alley
6.9% of Wedgwood & View Ridge is mapped steep slope and 13.3% is landslide-prone. Either one puts critical-area review on the table before a designer is paid.Seattle Critical Areas: When ECA Review Kills the Fast DADU Permit
At 32% canopy, Wedgwood & View Ridge is above the median of the 18 areas profiled here. A single Tier 2 tree moves a cottage further than any setback does.Seattle's Tree Ordinance and Your DADU: How Tier 2 Trees Decide Where a Cottage Can Go
94.2% of Wedgwood & View Ridge parcels are Neighborhood Residential, where the state middle-housing law as Seattle implemented it sets the unit count.HB 1110 on Your Lot: How Many Units Can You Actually Build in Seattle?
Most of Wedgwood & View Ridge's housing is post-1940, so the surprises here are budget ones rather than record ones. This is the line-by-line build cost.Seattle DADU Cost in 2026: A Builder's Line-by-Line Budget

All 20 guides and notes → · every record we can read on a Seattle parcel →

Next step

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This page tells you what Wedgwood & View Ridge looks like as a whole. The customized feasibility report runs your specific address through the same review — setbacks and FAR headroom, tree tiers, mapped critical areas, side sewer and panel capacity, and a permit path — measured from City records and reviewed by a person. Prefer to self-study? The Pro Guide covers the same rules.

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