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321 9 Street

152Records
12City systems
1Open violations
30Penalty rate
Brooklyn · ZIP 11215 · Neighborhood: Park Slope
Open in the map

152 recorded events, 1967–2026, from 12 city data systems. The city's paper trail here is mostly 57 311 service requests, 22 ACRIS deeds & mortgages, 22 HPD housing violations.

BoroughBrooklyn 11215
Built1925
Floors3
Res. units4
ClassS4
Owner (PLUTO)321 9TH ST REALTY CORP
BBL3010050072
BIN3022141

Full record, year by year   Support this site

GRADE C

A meaningful record of code violations or complaints relative to its peers. More recorded distress than 90% 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 30. In ZIP 11215, 70% of residential buildings hold an A and 4% 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 violations1 total — 0 class C (immediately hazardous), 1 class B, 0 class A. Oldest open since 2017-04-06.

status snapshot refreshed weekly from HPD records

Patterns

No heat or hot-water complaints in the last three years.

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

What 311 hears from this address

13 service requests in the last three years. Most common: Noise (7) · Rodent (2) · Commercial Disposal Complaint (1) · Street Light Condition (1) · Illegal Parking (1) · Missed Collection (1).

Filed construction activity

$6,000 in permitted construction work filed since 2016 (2 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 (1925)
NoSix or more residential units (4)
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)321 9TH STREET REALTY CORP.
Head officerLISA ALIBERTI
Managing agentLISA ALIBERTI
Last registered2025-11-20

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

What the city thinks it's worth

Tax yearCity market valueAssessed value
2025$2,081,000 $936,450
2026$2,175,000 $978,750
2027$2,610,000 $1,174,500

The city's market estimate has risen 25% between tax years 2025 and 2027.

Restaurants in this building

RestaurantCuisineGradeNotes
Stella'sCaribbeanNot yet gradedMice evidence

Report to 311: Food poisoning · Food safety complaint

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

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

Subway4 Av-9 St — F G R · 900 ft straight-line (about a 5-minute walk) · station accessibility: none
BusNearest boarding stop: 9 St / 5 Av — B61 · 150 ft
Citi Bike10 St & 5 Ave · 450 ft · station location as of 2026-09-23; live availability
School zones (2024–25 map)Elementary: P.S. 039 Henry Bristow. 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

321 9 Street

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

13 311 service requests from this address in the last three years.

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: $209,175 on 1993-12-01 (lender: Peniros, Mark). Face amount at recording — it may have since been paid down, refinanced or satisfied. View the recorded document.

DateRecordAmountPer res. unit
1993-12-01Mortgage $209,175 — from 321 9TH STREET RLTYCP to PENIROS, MARK $209,175
1987-03-10Mortgage $295,000 — from PONIROS, EVANS; PONIROS, JOHN; PONIROS RLTY CORP; 317 NINTH ST RLTY INC; PONIROS, JEANNIE to PEOPLES WESTCHESTERSV/B $295,000
1986-03-18Mortgage $80,000 — from PONIROS REALTY CORP; 321 9 TH ST CORP; MAJOPON REALTY CORP; 317 NINTH ST REALTYINC to WINFIELD CAPITAL CORP $80,000
1984-02-29Mortgage $161,394 — from 321 9TH STREET CORP; MAJORON REALTY CORP.; PONIROS REALTY CORP; 317 NINTH ST RLTY, INC. to WINFIELD CAPITAL CORP. $161,394

Ten-year activity

20100
2017
2018
2019
2020
2021
2022
2023
2024
15
2025
2026
ConstructionEnforcementHousing & tenantsHealth & systems
Show as table
YearConstructionEnforcementHousing & tenantsHealth & systemsTotal
201720608
201800606
201900516
202002204
2021028010
202200617
202300505
202400426
20250012315
202600415
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The full timeline

Construction 23Enforcement 11Housing & tenants 85Ownership & money 22Health & systems 11

Every one of the 152 recorded events, 1967–2026, is laid out year by year in the full report (print-ready).

Explore: ZIP 11215 · Landlord rankings · How grades work · The map · The Mice Map