Standard plan profileA6b
Backyard quad behind house
5 homes, existing house kept
The existing house stays as-is, with four compact townhomes placed in the rear yard.
Urban Acupuncture modeled standard plan
Repeatable program, parcel screening, schematic placement, and economics model — not City-pre-approved construction drawings.
- Homes
- 5
- Building type
- Four three-story townhomes behind a retained house
- Existing house
- Keep as-is
- Typical new footprint
- 39 × 39 ft
- New-building height
- 3 stories
- New-home bedrooms
- 3 bedrooms
Representative site plan
New: 4 homes in a 39×39 ft pack. Drawn on a typical lot — every real lot differs, so this is illustrative, not a site-specific layout.
The program
5 homes — 4 market townhomes in a 39x39 backyard quad.
+4 net new homes per lot (market-rate).
Workbook-baseline economics
You keep the existing home; the rear project could produce $345K–$368K in gross modeled owner value before mortgage payoff and taxes.
- Gross modeled rear-project owner value
- $345K–$368K
- All-in project cost
- $1.98M
- Does it pencil?
- Tight
- What to check first
- Parcel-specific inputs
Across conservative and base selling-cost cases, before mortgage payoff and taxes.
$495K per home
A 10% market-home price drop erases the profit under conservative selling costs.
Representative workbook baseline — not adjusted for a specific parcel.
Illustrative workbook baseline — a real packet adjusts these with the parcel's own assessor, market, and rent data.
Where it fits
Neighborhood-residential lots near major transit with at least 49 ft of usable rear width, roughly 100 ft of lot depth, and a clear back yard deep enough for a 39 ft by 39 ft quad behind the existing house.
What must be true
- A transit-served neighborhood-residential lot with a clear rear yard
- At least about 49 feet of usable rear width and 39 feet of clear depth
- A continuous access path to the rear homes
Verify before relying on it
- Surveyed rear-yard clearances and existing-building location
- Trees, access, utilities, drainage, and emergency response
- Townhome sale prices and construction access
Check Backyard quad behind house at a Seattle address
Choose a parcel to open this exact model in the feasibility packet. We will test its screening match, place the program schematically, and adjust the economics with parcel data.
If the plan does not pass this parcel's screening, the packet will say so and offer other paths.
Funding and programs that may apply
Programs that may pair with this plan
Matched from plan facts only. Parcel geography, income, utility territory, and owner facts can change the final list.
Home Improvement Property Tax Exemption
King County Assessor / RCW 84.36.400
Temporary property-tax exemption on qualifying added improvement value.
Exempts added value up to 30% of original structure value
Washington HEAR Home Electrification Rebates
Washington Department of Commerce / local HEAR administrators
Point-of-sale rebates for heat pumps, heat-pump water heaters, electrical panels, and related electrification work.
Up to $14,000 / household