Waukesha County · 2026 data
Sussex, Wisconsin Home Market Report
Updated 2026-06-21 · by Micah Nicholes, Founder, HouseBuyerz
Who owns the homes in Sussex?
Ownership reflects the most recent public assessor records (2026).
Of the roughly 4,015 homes in Sussex, about 0.7% are held by owners with an out-of-state mailing address (below the Wisconsin average of 5.3%), and about 0.9% are titled to a company or LLC rather than a person (below the state average of 5.6%).
Across Waukesha County, the single largest corporate residential owner on record is Harbor Homes INC, holding roughly 12 single-family homes. Out-of-state and company owners are usually the most willing to sell quickly for cash — they're managing the house as an investment, not living in it.
Curious how Sussex compares to the rest of the state? See our Who Owns Wisconsin study — out-of-state and corporate ownership across all 72 counties.
In Sussex (Waukesha County, Wisconsin), the typical home is worth about $531,385, across roughly 4,015 dwellings. About 3% are owned by investors or landlords rather than the people living in them — below the Wisconsin average of 21%.
Of recent home sales, roughly 24% closed in all cash — below the statewide average of 29%. A higher cash-sale share usually signals active investor and cash-buyer demand in a market.
For homeowners, the takeaway is that there's a real, active cash market for Sussex houses — including as-is, inherited, and off-market sales that never hit the MLS. (HouseBuyerz is one of those cash buyers.)
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