Market report · August 2026
Syosset housing market report
Nassau County · Data as of October 2, 2026 · Based on OneKey® MLS · Updated monthly
12-month median price up 7.3%; inventory about flat; seller's market
Market temperature · months of supply
2.6 months · seller's market
Median sale price
$1.36M
Last year $1.1M · +24.1%
Closed sales
28
Last year 29 · −3.4%
Homes for sale
39
Last year 39 · 0.0%
Avg. days on market
42 days
Last year 29 days
% of original list
97.0%
Last year 100.0%
New listings
18
Last year 18 · 0.0%
Month and last 12 months
| Metric | August 2025 | August 2026 | Change | Thru 08/2025 | Thru 08/2026 | Change |
|---|---|---|---|---|---|---|
| New listings | 18 | 18 | 0.0% | 257 | 263 | +2.3% |
| Closed sales | 29 | 28 | −3.4% | 198 | 183 | −7.6% |
| Avg. days on market | 29 | 42 | +44.8% | 55 | 38 | −30.9% |
| Median sale price | $1,100,000 | $1,365,000 | +24.1% | $1,165,000 | $1,250,000 | +7.3% |
| % of original list | 100.0% | 97.0% | −3.0% | 98.2% | 98.7% | +0.5% |
| Homes for sale / Avg. homes for sale | 39 | 39 | 0.0% | 40 | 42 | +5.0% |
From 2013-01 to 2026-08, the rolling 12-month median moved from $533K to $1.25M.
Highlights
- 10-year median +92.3%
- 45% sold above original list in 12 months
- $1M–$1.5M is the busiest band · 40% of sales
For sale today
Syosset Single-family 46 homes
12-month median price up 8.3%; inventory up 100.0%; balanced market
Market temperature · months of supply
5.3 months · balanced market
Median sale price
$1.18M
Last year $1.09M · +8.6%
Closed sales
2
Last year 2 · 0.0%
Homes for sale
4
Last year 2 · +100.0%
Avg. days on market
63 days
Last year 26 days
% of original list
92.8%
Last year 103.4%
New listings
1
Last year 0
Month and last 12 months
| Metric | August 2025 | August 2026 | Change | Thru 08/2025 | Thru 08/2026 | Change |
|---|---|---|---|---|---|---|
| New listings | 0 | 1 | — | 12 | 11 | −8.3% |
| Closed sales | 2 | 2 | 0.0% | 8 | 9 | +12.5% |
| Avg. days on market | 26 | 63 | +142.3% | 23 | 66 | +187.0% |
| Median sale price | $1,088,500 | $1,182,500 | +8.6% | $851,500 | $922,500 | +8.3% |
| % of original list | 103.4% | 92.8% | −10.3% | 103.7% | 93.4% | −9.9% |
| Homes for sale / Avg. homes for sale | 2 | 4 | +100.0% | 2 | 3 | +50.0% |
From 2013-01 to 2026-08, the rolling 12-month median moved from $475K to $923K.
For sale today
Syosset Condo 2 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.