520 4th St is a 885 square foot house on a 3,300 square foot lot with 2 bedrooms and 2 bathrooms. - it last sold on May 23, 2025 for $700,000. Based on Redfin's Key Colony Beach data, we estimate the home's value is $744,404.
Single-familyProperty Type
1967Year Built
3,300 sq ftLot Size
$841Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$744,404
$44K since sold in May 2025$19K since October
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 9.2% higher than the average sale price ($682K) of 6 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Sep 16, 2026 • Final
Building
Tear off the existing roof and install a new modified bitumen membrane with a self-adhered base sheet.
Roofing
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.