639 Union Street, Brooklyn

City inspectors were last at this 8-unit walk-up apartment building on July 20, 2026, and the resulting violation remains open.

639 Union Street is a 8-unit building in Brooklyn, New York City (BBL 3004340054). This building is associated with 639 Union Street, LLC. Brix tracks 9 open HPD violations for this property, along with inspection history, DOB filings, tenant complaints, and rent stabilization status.

Built in 1931, this walk-up apartment building sits in Brooklyn and is tracked by Brix using public NYC records from HPD, DOB, ACRIS, and 311.

Tenants have filed 36 HPD complaints about this building over the last five years, most often about appliance.

What tenants have called the city about here over the last five years:

• Heat/hot Water: 6 complaints
• Electric: 6 complaints
• Appliance: 6 complaints
• Paint/plaster: 5 complaints

The most recent complaint on this building was filed July 16, 2026.

Conditions cited on open violations at this address:

• § 27-2045(B)(1)(B) HMC, § 12-06, § 12-07, § 12-09 RCNY REPAIR, REPLACE OR PROVIDE AN APPROVED AND OPERATIONAL CARBON MONOXIDE DETECTING DEVICE, INSTALLED IN ACC
• § 27-2005 HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE LOWER SASH, INNER GLASS PANE AT 1ST WINDOW FROM WEST AT NORTH WALL
• § 27-2044, 2041
• § 27-2045(B)(1)(A) HMC, § 12-01, § 12-03 RCNY REPAIR, REPLACE OR PROVIDE AN APPROVED AND OPERATIONAL SMOKE DETECTING DEVICE, INSTALLED IN ACCORDANCE WITH DEPART

The building last changed hands on June 21, 2010 for $850,000, according to recorded deeds.

Brix rating: Concerning (6/100). View the Building Report on Brix.

See every NYC building owned by 639 Union Street, LLC on the landlord portfolio page.