Home services in Hillsdale, NJ

Hillsdale's housing is mostly owner-occupied single-family houses with a large pre-1960 share. ACS 2020–2024 5-year estimates put the median year built at 1959 (±3 years). About 52% of housing units were built before 1960, including about 22% before 1940, and about 26% in the 1960s. Only about 9% date from 1990 or later. About 87% of the borough's roughly 3,600 units are single-family detached houses, and about 93% of occupied homes are owner-occupied. Utility gas is the main heating fuel in about 93% of occupied homes. Electricity is about 4% and fuel oil about 2% (76 homes, ±53). The borough's 2025 Housing Element also maps wetlands, steep slopes and stream buffers, which can affect additions and other work on some lots.