21 Main St is a 2,207 square foot house on a 13 acre lot with 3 bedrooms and 2 bathrooms. - it last sold on May 18, 2026 for $391,800. Based on Redfin's Alstead data, we estimate the home's value is $436,129.
Single-familyProperty Type
1763Year Built
13 acresLot Size
$198Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$436,129
$44K since sold in May 2026$16K since October
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Estimate history
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This home's estimate is 21.8% lower than the average sale price ($557K) of 6 comparable homes.