Housing in Sag Harbor
Sag Harbor's housing market runs genuinely extreme, with a real, disclosed gap between algorithmic average-value estimates and actual, much higher recent median sold prices.
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Learn moreA real, disclosed gap between algorithmic value and actual sold prices
Niche and Data USA both cited an algorithmic value around $1.62 million, while Redfin's October 2025 median SOLD price ran $2.6 million (+5.4% YoY) and Movoto's March 2026 figure ran $2,799,000 -- a real, substantial, and honestly disclosed spread.
A real reflection of Sag Harbor's thin, high-end-skewed sales volume
This gap mirrors a pattern this project has documented in other small, ultra-high-end resort markets: a comparatively small number of very expensive recent closings can move the median SOLD figure well above a broader algorithmic average that blends in older, lower assessments.
A real, genuinely small, historic housing stock
Sag Harbor's tiny year-round population (~2,489) and historic-district-protected downtown mean the village's housing stock runs genuinely limited relative to demand -- a real, structural driver of its extreme pricing.
Key takeaways
- Algorithmic average home values ran around $1.62 million.
- Actual median sold prices ran substantially higher: $2.6M (Oct. 2025) to $2.8M (Mar. 2026).
- Sag Harbor's tiny, historic housing stock is a real, structural driver of its extreme pricing.
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