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3924 9 Avenue

84Records
13City systems
3Open violations
46.7Penalty rate

84 recorded events, 1983–2026, from 13 city data systems. The city's paper trail here is mostly 33 311 service requests, 16 HPD housing violations, 15 ACRIS deeds & mortgages.

BoroughBrooklyn 11232
Built1931
Floors2
Res. units3
ClassS3
Owner (PLUTO)3924 9TH AVE LLC
BBL3009160043
BIN3017945

Full record, year by year   Support this site

GRADE D

A sustained record of distress well beyond its peers. More recorded distress than 95% of 1-5-unit residential buildings citywide. The citywide median for 1-5-unit residential buildings is 0 penalty points per 10 units; this building carries 46.7. In ZIP 11232, 65% of residential buildings hold an A and 8% grade D or F. How grades work

this building
A
C

Among 699,345 1-5-unit residential buildings citywide · left is less recorded distress, right is more

Open with the city right now

Open HPD violations3 total — 1 class C (immediately hazardous), 0 class B, 2 class A. Oldest open since 2025-06-05.

status snapshot refreshed weekly from HPD records

Patterns

2 heat or hot-water complaints in the last three years (winter 2023–24: 2).

No bedbug-infested units reported in the last three years of filings.

What 311 hears from this address

16 service requests in the last three years. Most common: Illegal Parking (7) · Water System (6) · Food Establishment (1) · HEAT/HOT WATER (1) · Abandoned Bike (1).

Filed construction activity

$62,800 in permitted construction work filed since 2016 (3 filings with a declared cost) — a rough measure of how actively the owner maintains the building. Permit costs cover filed construction work only — they do not capture routine maintenance or repairs done without a permit.

Rent-stabilization signals

YesBuilt before 1974 (1931)
NoSix or more residential units (3)
No421-a / J-51 tax benefit on the current tax roll

1 of 3 signals present. Only a partial profile — stabilization is possible but less likely. The definitive answer for any unit: request its rent history from NYS Homes & Community Renewal (free, at hcr.ny.gov).

Registered with HPD — the names behind the building

Registered owner(s)3924 9TH AVE LLC
Head officerKaHo Yeung
Managing agentKaHo Yeung
Last registered2024-10-24

as filed by the owner in the building's HPD registration

What the city thinks it's worth

Tax yearCity market valueAssessed value
2025$539,000 $242,550
2026$599,000 $269,550
2027$717,000 $322,650

The city's market estimate has risen 33% between tax years 2025 and 2027.

Restaurants in this building

RestaurantCuisineGradeNotes
Tung Sum BakeryBakery Products/DessertsA—

Report to 311: Food poisoning · Food safety complaint

1 restaurant · 0 with mice evidence · See them on the Mice Map

1 Food Establishment complaint to 311 at this address in the last three years (most often: Kitchen/Food Prep Area) · complaints filed by the public; DOHMH investigates, outcomes aren't published.

Flood exposure

Not in the FEMA 1%-annual-chance floodplain (2015 preliminary maps).

Not in a hurricane evacuation zone.

Not in the city's stormwater (cloudburst) flood maps under any modeled scenario.

No street-flooding or sewer-backup complaints on record at this address.

Sources: FEMA flood maps (coastal), NYC DEP Stormwater Flood Maps (cloudburst), NYC hurricane evacuation zones, and 311 records for this address.

Getting around

Subway9 Av — D · 450 ft straight-line (about a 2-minute walk) · station accessibility: none
BusNearest boarding stop: 39 St / 9 Av — B35 · 250 ft
Citi BikeNew Utrecht Ave & 9 Ave · 450 ft · station location as of 2026-09-23; live availability
School zones (2024–25 map)Elementary: P.S. 169 Sunset Park
Middle: J.H.S. 223 The Montauk. Confirm with the DOE's school search.

Distances are straight-line, not walking routes. Transit locations from the MTA and Citi Bike, bike facilities from NYC DOT, school zones from the DOE's 2024–25 maps.

Report a problem to 311

3924 9 Avenue

Heat or hot waterHeat or hot water
Apartment maintenanceApartment maintenance
Bed bugsBed bugs
Residential pestsResidential pests
Rats or miceRats or mice
Food poisoningFood poisoning
Food safety complaintFood safety complaint
Anything elseAnything else

16 311 service requests from this address in the last three years — 1 of them about heat or hot water.

311 will ask for the address, the apartment if the problem is inside, and what's wrong. Contact details are optional for most complaints; food-poisoning reports can be anonymous. Complaints appear in the city's public 311 data, usually within a day or two, and then in the Live from 311 box on this page.

Sales, deeds & mortgages

Most recent mortgage recorded against this lot: $1,300,000 on 2018-05-24 (lender: Rutigliano, Antonio and Rutigliano, Josephine). Face amount at recording — it may have since been paid down, refinanced or satisfied. View the recorded document.

DateRecordAmountPer res. unit
2018-05-24Deed $2,000,000 — from RUTIGLIANO, JOSEPHINE; RUTIGLIANO, ANTONIO to CHAN, LING LING; YEUNG, KA HO; WA LI, LUNG $2,000,000
2018-05-24Mortgage $1,300,000 — from CHEN, LING LING; YEUNG, KA HO; LI, LUNG WAL to RUTIGLIANO, ANTONIO; RUTIGLIANO, JOSEPHINE $1,300,000
2018-05-17Sold for $2,000,000 $2,000,000 $666,667
1992-07-02Mortgage $65,000 — from RUTIGLIANO, JOSEPHINE; RUTIGLIANO, ANTONIO to GREEN POINT SAVINGSBANK $65,000
1983-10-17Mortgage $32,000 — from RUTIGLIANO, ANTONIO; RUTIGLIANO, JOSEPHINE to DE MARCO, PAUL; DE MARCO, ROSE $32,000

Ten-year activity

20100
2017
2018
2019
2020
2021
2022
2023
13
2024
2025
2026
ConstructionEnforcementHousing & tenantsOwnership & moneyHealth & systems
Show as table
YearConstructionEnforcementHousing & tenantsOwnership & moneyHealth & systemsTotal
2017001001
20184035012
2019015107
2020000000
2021005005
2022015006
20232440111
202400120113
2025003003
20260072110
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The full timeline

Construction 6Enforcement 6Housing & tenants 52Ownership & money 17Health & systems 3

Every one of the 84 recorded events, 1983–2026, is laid out year by year in the full report (print-ready).

Explore: ZIP 11232 · Landlord rankings · How grades work · The map · The Mice Map