637 9th Avenue, Manhattan

City inspectors were last at this 50-unit elevator apartment building on May 11, 2026, and the resulting violation remains open.

637 9th Avenue is a 50-unit building in Manhattan, New York City (BBL 1010540036). This building is associated with Grandma-pa Realty Ltd. Brix tracks 12 open HPD violations for this property, along with inspection history, DOB filings, tenant complaints, and rent stabilization status.

Built in 1940, this elevator apartment building sits in Manhattan 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 unsanitary condition.

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

• Unsanitary Condition: 13 complaints
• General: 12 complaints
• Water Leak: 3 complaints
• Plumbing: 2 complaints

The most recent complaint on this building was filed October 7, 2026.

Conditions cited on open violations at this address:

• (A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW
• § 27-2005 HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE LATCH SET AT VESTIBULE DOOR AT PUBLIC HALL, 1st STORY
• § 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
• § 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

The building last changed hands on August 11, 1981, according to recorded deeds.

Brix score: 31/100. View the Building Report on Brix.

See every NYC building owned by Grandma-pa Realty Ltd on the landlord portfolio page.