What this means: under 3 months of inventory means sellers hold the upper hand in Stony Brook right now. Homes are selling in a median of 23 days. One caveat, always: a median can move because different kinds of homes sold, not because values changed. The trend numbers matter more than any single month.
As of 2026-06, the median sold price in Stony Brook was $832,500. Medians shift with the mix of homes sold, so treat it as a compass, not an appraisal.
Right now Stony Brook is a seller market, based on 1.38 months of inventory. Under 3 months favors sellers, over 6 favors buyers.
The median is 23 days on market as of 2026-06. Well prepared and well priced homes move faster than the median.