643 Cauldwell Avenue

Owner: Mark J. Schwartz

Acquired: June 10, 2026, $5.7 million

Debt: June 10, 2026, $5.5 million

Built: 1913

Renovated: 1996

SF: 28,704

Dwelling units: 41

No. of buildings: 1

Class: Over Six Families Without Stores (C1)

Floors: 6

HPD Ownership Registration Information

Last registered: 2025-08-05 (expires 2026-09-01)

Transactions:

• Mark J. Schwartz and GRE Holdings borrowed $5.5 million from Customers Bank for 643 Cauldwell Avenue and 647 Cauldwell Avenue, Longwood, Bronx on June 10, 2026.

• Sharp Management sold 643 Cauldwell Avenue and 647 Cauldwell Avenue, Longwood, Bronx for $5.7 million to Mark J. Schwartz and GRE Holdings on June 10, 2026.

Development:

• Lucio.Gil Rumaldo filed alteration job X01308175 for 660 sqft building with 41 apartments in Longwood, Bronx, on October 24, 2025.

• Martin Kirzner filed alteration job 220334635 for RES building with 41 apartments in Longwood, Bronx, on September 11, 2013.

• Richard Olsen filed alteration job 210032793 for building with 37 apartments in Longwood, Bronx, on February 05, 2008.

• Vincent Carvel filed alteration job 201077075 for building in Longwood, Bronx, on September 13, 2006.

• Kenneth Olsen filed alteration job 200879317 for building in Longwood, Bronx, on September 07, 2004.

Violations:

According to city public data, the properties have received two DOB violations, $11,250 in ECB penalties, 75 housing violations, and $10,970 in OATH penalties in the last year.