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Teardown and Rebuild: Turn One Old House Into Several New Homes

A teardown-rebuild removes an existing house that is near the end of its useful life and replaces it with new construction. Under middle housing rules, the replacement no longer has to be one bigger house — it can be two to six new homes.

OLD HOUSE
STREET
TH 1
TH 2
TH 3
TH 4
SHARED DRIVE
STREET
Skid steer tearing down an old houseDemolition
Two excavators digging into a building siteExcavation
Workers preparing the ground for a concrete pourFoundation
01

Signs a Teardown Makes More Sense Than a Remodel

  • The house needs a new roof, windows, electrical and plumbing at the same time.
  • Foundation or drainage problems are significant.
  • The layout cannot be fixed without moving most interior walls.
  • The house sits in the middle of the lot, blocking any second building.
  • The land is worth far more than the structure — common for 1950s–1970s ramblers in Lynnwood, Edmonds, Shoreline and Mountlake Terrace.
02

What Happens Before the Excavator Arrives

  1. 01
    Hazardous materials survey
    Homes built before 1980 often contain asbestos in flooring, siding, pipe wrap or textured ceilings. A survey is required before demolition, and any asbestos is removed by a certified abatement contractor.
  2. 02
    Utility disconnects
    Power, gas, water and sewer capped and documented.
  3. 03
    Demolition permit
    Issued by the city, often alongside the new building permit.
  4. 04
    Air quality notice
    Puget Sound Clean Air Agency requires notification before most demolitions.
  5. 05
    Salvage
    Fixtures, lumber and appliances diverted from landfill where it is practical.
Older brick-red house with a large front yardOlder house
Surveyor taking readings with a total station in a grassy fieldSurvey
Excavator beside a partly demolished houseSite clearing
03

Keep, Sell or Mix

PlanHow it works
Keep all unitsRefinance into long-term rental financing after completion
Sell all unitsUnit lot subdivision, sell each townhome or cottage
Live in one, sell the restSales proceeds retire the construction loan
Live in one, rent the restRental income supports the owner's unit
04

Teardown FAQ

QCan I live in the old house while permits are processed?

Yes. Demolition usually happens only after building permits are approved, so most owners stay put through design and permitting.

QWhat if the old house has a tenant?

Washington and some cities have notice requirements for tenants when a rental is demolished. We build that notice period into the schedule.

QIs it cheaper to keep the foundation?

Rarely for multi-unit projects. The new layout almost never matches the old footprint.

Free lot review

Find Out What Your Old House Is Really Worth as a Site

Send us the address. Within two business days you get a written lot review: how many units the city allows, what the site will cost to prepare, and which housing type makes the most sense for your goals.

Get a Lot Review Call (425) 555-0164