Market report · August 2026
Cold Spring Harbor housing market report
Suffolk County · Data as of October 2, 2026 · Based on OneKey® MLS · Updated monthly
12-month median price up 13.8%; inventory up 25.0%; seller's market
Market temperature · months of supply
3.2 months · seller's market
Median sale price
$2.26M
Last year $2.8M · −19.3%
Closed sales
4
Last year 5 · −20.0%
Homes for sale
10
Last year 8 · +25.0%
Avg. days on market
29 days
Last year 78 days
% of original list
102.0%
Last year 91.0%
New listings
3
Last year 4 · −25.0%
Month and last 12 months
| Metric | August 2025 | August 2026 | Change | Thru 08/2025 | Thru 08/2026 | Change |
|---|---|---|---|---|---|---|
| New listings | 4 | 3 | −25.0% | 44 | 44 | 0.0% |
| Closed sales | 5 | 4 | −20.0% | 32 | 37 | +15.6% |
| Avg. days on market | 78 | 29 | −62.8% | 58 | 49 | −15.5% |
| Median sale price | $2,800,000 | $2,260,000 | −19.3% | $1,889,500 | $2,150,000 | +13.8% |
| % of original list | 91.0% | 102.0% | +12.1% | 92.7% | 99.8% | +7.7% |
| Homes for sale / Avg. homes for sale | 8 | 10 | +25.0% | 10 | 7 | −30.0% |
From 2013-01 to 2026-08, the rolling 12-month median moved from $998K to $2.15M.
Highlights
- 10-year median +84.9%
- 38% sold above original list in 12 months
- $2M–$3M is the busiest band · 38% of sales
For sale today
Cold Spring Harbor Single-family 10 homes
Curious what your home is worth?
Source: OneKey® MLS, calculated by Homix following OneKey's market report method; figures may differ slightly from OneKey's own reports. Prices do not account for concessions or down-payment assistance; small samples can make percent changes look extreme.