3723 18th Avenue

3723 18th Avenue in Flatbush, Brooklyn, has 70 open HPD violations, 24 of them class C, and 38 of 46 units are rent-stabilized, as of Oct 26, 2026. StreetSpy grade: F (35/100).

Multi-family walk-up · 46 units · Built 1930

StreetSpy grade: F (Severe, 35/100)

More open violations per unit than 7 in 10 Brooklyn buildings this size.

How the grade works

Housing code violations (HPD)

70 open violations: 24 class C (immediately hazardous), 25 class B, 21 class A. 2 issued in the last 12 months. 322 on record. Oldest open violation issued 2005-01-31. Newest violation issued 2026-09-28.

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

5 open violations are classified rent-impairing under NY Multiple Dwelling Law section 302-a. Section 302-a; NY Courts guidance on getting repairs.

311 housing complaints

22 in the last 12 months, 345 in 5 years. Most common: Heat/Hot Water (12), Unsanitary Condition (4), Plumbing (2), Water Leak (2), Door/Window (1).

Bedbugs

The owner reported 2 infested units in the last 3 years. HPD's bedbug filings are self-reported by the owner once a year; HPD does not inspect to confirm them.

Buildings department (DOB)

1 open DOB violation, a Local Law violation issued before 2000. 4 DOB violations on record. Check on DOB BIS.

Evictions and housing court

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

Rent stabilization

38 of 46 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).

Rent-stabilized units on city tax bills: 38 in 2024, 42 in 2007. Source: DOF tax bills for 2007 and 2024; years with no bill on file are left out.

Owner and management

Owner: 3723 18TH AVE APTS LLC. Head officer: NICHOLAS G MALAFIS. Managing agent: GNM MANAGEMENT LLC. This owner has 4 buildings on record, 1 graded D or F. See the full portfolio.

Last HPD registration Aug 7, 2025. Registration on file through Sep 1, 2026; renewal not yet in the city's data.

Tax lot and city IDs

BBL 3054180018, HPD building ID 142773. HPD Online, ACRIS, DOB BIS.

Nearest subway

How the grade is calculated

FactorOn recordPoints
Open HPD violations70 open (24 class C, 25 class B, 21 class A). 5 rent-impairing−40
311 housing complaints (12 mo)22−14
Bedbug reports (3 yr)2 infested units−8
Executed evictions (3 yr)2−3
Housing litigationNo open cases0
Open DOB violations1 open DOB violation, a Local Law violation issued before 20000

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.