Data as of June 2026. Source: Realtor.com.
The Stony Brook, NY real estate market currently shows 51 active listings, with 36 pending sales. Homes are averaging 17 days on the market before going under contract.
Inventory has tightened compared to last year, with 18 fewer active listings — creating more competition among buyers.
Homes are selling faster, averaging 17 days on market compared to 28 days last year.
The median listing price has risen 15.3% year-over-year, from $749,500 to $864,500.
Whether you are buying or selling in Stony Brook, NY, SELL123.com can help you save significantly on commission — typically 2% compared to traditional 5% broker fees. Call (240) SELL-123 for a free consultation.
Population: 20,707 · Density: 1,116.2/mi² · Median household income: $135,529
Typical home value: $536,383 · Homeownership: 83.1%