Paper-prepared
670 Union Street
Brooklyn · Condo
Condo
Type
14
Units
1920
Year built
Brooklyn
Borough
R4 · Condo; Residential Unit In Elevator Bldg
Public records
What we know about 670 Union Street
Sales (5yr)
31
Median price
$2.90M
Avg price per square foot
$1,615
Last sale
Apr 2026
Open violations
13
Violations (5yr)
2
Permits (5yr)
3
Latest Aug 2022
Energy Star
Not available
Last C of O
Feb 2023
Issued
Recent closed sales
| Date | Unit | Beds / Baths | SF | Price |
|---|---|---|---|---|
| Apr 2026 | 4A | 3 / 3.5 | 2,041 | $3,850,000 |
| Jan 2026 | 3A | 2 / 2 | 1,395 | $2,425,000 |
| Jan 2026 | Not available | 2 / 2 | 1,395 | $2,425,000 |
| Jan 2023 | 5B | 1 / 1 | 622 | $995,000 |
| Jan 2023 | 5B | 1 / 1 | 619 | $1,013,159 |
Source: NYC ACRIS · public record