103 Joralemon Street
Brooklyn Heights, Brooklyn
Parcel ID (BBL): 3002530006
Owner: Mortar Group
Acquired: January 12, 2026, $6 million
Debt: January 12, 2026, $6.7 million
Built: 1899
SF: 6,000
Dwelling units: 5
No. of buildings: 1
Class: Five to Six Families (C2)
Floors: 4
HPD Ownership Registration Information
Last registered: 2026-01-23 (expires 2026-09-01)
Joralemon Mg Llc
Corporate Owner
346 346 Metropolitan Avenue 2A Brooklyn, NY, 11211
Site Manager
Transactions:
• Mortar Group borrowed $6.7 million from Hirshmark Capital for 103 Joralemon Street, Brooklyn Heights, Brooklyn on January 12, 2026.
• Susan Aroldi sold 103 Joralemon Street, Brooklyn Heights, Brooklyn for $6 million to Mortar Group on January 12, 2026.
Development:
• Mortar Group filed major alteration job B01339087 for 6,137 sqft R-2 building with 4 apartments in Brooklyn Heights, Brooklyn, on January 20, 2026.
• Susan Aroldi filed major alteration job 320160348 for 7,500 sqft R-2 building with 5 apartments in Brooklyn Heights, Brooklyn, on May 19, 2010.
• Gagandeep Singh filed alteration job B01379710 for 805 sqft building with 5 apartments in Brooklyn Heights, Brooklyn, on April 04, 2026.
• Gagandeep Singh filed alteration job B01379711 for 975 sqft building with 5 apartments in Brooklyn Heights, Brooklyn, on March 31, 2026.
• Francesca Gaccione filed alteration job B01317129 for 6,000 sqft R-2 building with 5 apartments in Brooklyn Heights, Brooklyn, on January 22, 2026.
Condominium:
• Francesca Gaccione filed plans CD260121 on March 27, 2026 for 4-unit condominium called 103 Joralemon Street Condominium at 103 Joralemon Street.
Violations:
According to city public data, the properties have received $650 in OATH penalties in the last year.