1821 Prospect Avenue

1821 Prospect Avenue in Tremont, Bronx, has no open HPD violations, and 33 of 33 units are rent-stabilized, as of Oct 26, 2026. StreetSpy grade: B (86/100).

Multi-family elevator · 33 units · Built 2022

StreetSpy grade: B (Good, 86/100)

Fewer open violations per unit than 8 in 10 Bronx buildings this size.

How the grade works

Housing code violations (HPD)

0 open violations: 0 class C (immediately hazardous), 0 class B, 0 class A. 0 issued in the last 12 months. 0 on record.

HPD recorded no violation closed here in the last 12 months.

311 housing complaints

10 in the last 12 months, 10 in 5 years. Most common: Unsanitary Condition (5), Heat/Hot Water (3), Plumbing (2).

Bedbugs

The owner reported 0 infested units in the last 3 years of filings. HPD's bedbug filings are self-reported by the owner once a year; HPD does not inspect to confirm them.

Buildings department (DOB)

No open DOB violations. 0 DOB violations on record. Check on DOB BIS.

Evictions and housing court

0 executed evictions in the last 3 years (0 on record). 0 open HPD cases; 0 harassment findings.

Rent stabilization

33 of 33 units rent-stabilized as of 2024. Stabilized renewals: 0% for one year and 0% for two years under RGB Order #58 (Oct 1, 2026 to Sep 30, 2027).

Owner and management

Owner: PRO 1821 LLC. Head officer: SHAYA SEIDENFELD. Managing agent: MZS REALTY MANAGEMENT CORP. See the full portfolio.

Last HPD registration Aug 14, 2023. HPD registration expired Sep 1, 2024 and had not been renewed as of Oct 3, 2026. Buildings with 3+ units must register with HPD every year.

Tax lot and city IDs

BBL 2029490072. HPD Online, ACRIS, DOB BIS.

Nearest subway

How the grade is calculated

FactorOn recordPoints
Open HPD violationsNone open0
311 housing complaints (12 mo)10−14
Bedbug reports (3 yr)None reported0
Executed evictions (3 yr)None0
Housing litigationNo open cases0
Open DOB violationsNone0

Sources: NYC HPD Housing Maintenance Code Violations, NYC 311 Service Requests, NYC HPD Bedbug Reporting, NYC Marshal Evictions (DOI), NYC HPD Housing Litigations, NYC DOB Violations, NYC DOF tax bills (via JustFix Who Owns What portfolio API, v2), NYC HPD Property Registration. Methodology. Report generated 2026-10-28.