Long Island commercial real estate

Nassau County commercial real estate

Aggregate medians for Nassau County, New York. Closed sales in this rollup run from Jan 2, 2025 through Oct 1, 2026. Data as of Oct 6, 2026. No individual sale, address, or party is shown.

1,712
Closed building sales in the aggregate
9
Asset classes with a published median
$192–$383
Range of published building medians, per SF
$25–$149
Range of published land medians, per land SF
Median closed price per square foot by asset class in Nassau County, New York
Asset classMedian $/SF (n)
Retailper building SF$304 (586)
Land under 1 acreper land SF$149 (1,762)
Land, 1 to 5 acresper land SF$63 (177)
Land, 5 acres and largerper land SF$25 (19)
Officeper building SF$278 (279)
Multifamilyper building SF$383 (399)
Industrialper building SF$230 (200)
Specialtyper building SF$192 (21)
Mixed-useper building SF$267 (14)

Buildings are priced per building square foot. Land is priced per land square foot, split by parcel size. Those two units are never mixed into one range.

A median is published only when at least 5 closed sales support it. Below that, the median and the sample size are both withheld.

Figures are aggregate medians from our closed-comp data. They are not an appraisal, and no individual sale is shown.