Building Biography

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1520 Avenue J

172Records
9City systems
0Open violations
—Penalty rate

172 recorded events, 1973–2026, from 9 city data systems. The city's paper trail here is mostly 125 311 service requests, 28 ACRIS deeds & mortgages, 9 DOB permits.

BoroughBrooklyn
Built1921
Floors1
Res. units0
ClassK1
Owner (PLUTO)1520 AVENUE J REALTY, LLC
BBL3067170009
BIN—

Full record, year by year   Support this site

Patterns

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

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

$1,250 in enforcement penalties imposed (ECB/OATH) in the last three years.

What 311 hears from this address

61 service requests in the last three years. Most common: Illegal Parking (12) · Noise (9) · Sidewalk Condition (6) · General Construction/Plumbing (5) · Building/Use (4) · Air Quality (4).

Filed construction activity

No permitted work with a declared cost filed in the last decade. Permit costs cover filed construction work only — they do not capture routine maintenance or repairs done without a permit.

What the city thinks it's worth

Tax yearCity market valueAssessed value
2025$1,095,933 $493,170
2026$1,082,000 $486,900
2027$0 $0

The city's market estimate has fallen 100% between tax years 2025 and 2027.

Restaurants in this building

RestaurantCuisineGradeNotes
Starbucks CoffeeCoffee/TeaA—

Report to 311: Food poisoning · Food safety complaint

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

2 Food Establishment complaints to 311 at this address in the last three years (most often: Toilet Facility) · 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.

Report a problem to 311

1520 Avenue J

Rats or miceRats or mice
Food poisoningFood poisoning
Food safety complaintFood safety complaint
Anything elseAnything else

61 311 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: $1,000,000 on 2012-05-17 (lender: 1520 Avenue J Realty, LLC), covering 2 lots — the amount covers all of them. Face amount at recording — it may have since been paid down, refinanced or satisfied. View the recorded document.

DateRecordAmountPer res. unit
2012-05-17Mortgage $1,000,000 — from KORNFELD, ALAN; ROSENBLUM, JULES; RKR REALTY ASSOCIATES, LLC; ROSENBLUM, SANFORD to 1520 AVENUE J REALTY, LLC $1,000,000
2012-05-17Agreement $3,500,000 — from ROSENBLUM, SANFORD; KORNFELD, ALAN; RKR REALTY ASSOCIATES, LLC; ROSENBLUM, JULES to 1520 AVENUE J REALTY, LLC $3,500,000
2012-05-17Agreement $3,500,000 — from 1520 AVENUE J REALTY, LLC to RKR REALTY ASSOCIATES, LLC; KORNFELD, ALAN; ROSENBLUM, JULES; ROSENBLUM, SANFORD $3,500,000
2010-04-28RPTT&RET $73,123,490 — from DUANE READE SHAREHOLDERS LLC to WALGREEN CO $73,123,491
2007-12-05Mortgage $3,500,000 — from 1520 AVENUE J REALTY, LLC to ROSENBLUM, SANFORD; RKR REALTY ASSOCIATES, LLC; KORNFELD, ALAN; ROSENBLUM, JULES $3,500,000
2007-12-05Deed $4,100,000 — from ROSENBLUM, JULES; KORNFELD, ALAN; ROSENBLUM, SANFORD to 1520 AVENUE J REALTY, LLC $4,100,000
1990-06-13Mortgage $250,000 — from KORNFELD, ALAN; ROSENBLUM, SANFORD; ROSENBLUM, JULES to INDEPENDENCE SAVS BANK $250,000
1983-04-06Mortgage $100,000 — from KORNFELD, ALLAN A/K/A; KORNFELD, ALAN; ROSENBLUM, SANFORD; ROSENBLUM, JULES; RKR REALTY AS to INDEPENDENCE SAVINGSBNK $100,000

Ten-year activity

50250
2017
2018
2019
2020
2021
2022
2023
2024
39
2025
2026
EnforcementHousing & tenantsOwnership & moneyHealth & systems
Show as table
YearEnforcementHousing & tenantsOwnership & moneyHealth & systemsTotal
201702002
201801001
201904004
202007007
202108008
20220120012
20231272030
20241195126
20250323439
202601012
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The full timeline

Construction 9Enforcement 3Housing & tenants 125Ownership & money 29Health & systems 6

Every one of the 172 recorded events, 1973–2026, is laid out year by year in the full report (print-ready).

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