609 West 137 Street

Owner: Janusz Sendowski

Acquired: July 22, 2025, $9 million

Built: 1906

Renovated: 1986

SF: 38,750

Dwelling units: 36

No. of buildings: 1

Class: Semi-fireproof (Without Stores) (D1)

Floors: 6

HPD Ownership Registration Information

Last registered: 2025-09-11 (expires 2026-09-01)

Transactions:

• Bonjour Capital sold 609 West 137th Street, Harlem, Manhattan for $9 million to Janusz Sendowski on July 22, 2025.

Development:

• Heshy Nemetsky filed plans for alteration in Harlem, Manhattan, on August 15, 2008.

• Mark Moseson filed plans for alteration in Harlem, Manhattan, on October 19, 2012.

• Mark Moseson filed plans for alteration in Harlem, Manhattan, on July 28, 2010.

• Charles Dayan filed plans for alteration in Harlem, Manhattan, on April 30, 2013.

• Mark Moseson filed plans for alteration in Harlem, Manhattan, on March 23, 2011.

Violations:

According to city public data, the properties have received $450 in OATH penalties in the last year.

Latest Stories:

• Janusz Sendowski pays $62M to Bonjour Capital for 5 rentals in Harlem, gets $46.5M loan (July 23, 2025)