1821 Prospect Avenue
East Morrisania, Bronx
Parcel ID (BBL): 2029490072
Owner: Mzs Realty
Debt: December 10, 2025, $9.8 million
Built: 2022
Renovated: 2020
SF: 17,620
Dwelling units: 33
No. of buildings: 1
Class: Semi-fireproof (Without Stores) (D1)
Floors: 7
Legacy BBLs: 2029490073
HPD Ownership Registration Information
Last registered: 2025-10-31 (expires 2026-09-01)
Pro 1821 Llc
Corporate Owner
1314 59 STREEt BROOKLYn, NY, 11219
Mzs Realty Management Corp
Agent
1314 59 STREET BROOKLYn, NY, 11219
Site Manager
Transactions:
• MZS Realty borrowed $9.8 million from Protective Life Insurance Company for 1821 Prospect Avenue, East Morrisania, Bronx on December 10, 2025.
• Shaya Seidenfeld borrowed $8.2 million from BridgeCity Capital for 1821 Prospect Avenue, East Morrisania, Bronx on March 21, 2024.
• Shaya Seidenfeld borrowed $5.9 million from Northeast Community Bank for 1821 Prospect Avenue, East Morrisania, Bronx on March 31, 2022.
Development:
• Shaya Seidenfeld filed plans for alteration in East Morrisania, Bronx, on May 01, 2023.
• Shaya Seidenfeld filed plans for alteration in East Morrisania, Bronx, on April 18, 2023.
• Shaya Seidenfeld filed plans for alteration in East Morrisania, Bronx, on February 24, 2023.
• Shaya Seidenfeld filed plans for alteration in East Morrisania, Bronx, on June 24, 2021.
• Shaya Seidenfeld filed plans for alteration in East Morrisania, Bronx, on June 10, 2021.
Violations:
According to city public data, the properties have received $1,800 in OATH penalties in the last year.