Free while in beta — every NYC building gets a report
like this, updated weekly from city records. If it's useful,
chip in to keep it free
This building is not graded (non-residential or no residential units
on record) — the report below covers its full public record.
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 year
City market value
Assessed 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.
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.
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.
Date
Record
Amount
Per res. unit
2012-05-17
Mortgage $1,000,000 — from KORNFELD, ALAN; ROSENBLUM, JULES; RKR REALTY ASSOCIATES, LLC; ROSENBLUM, SANFORD to 1520 AVENUE J REALTY, LLC
$1,000,000
2012-05-17
Agreement $3,500,000 — from ROSENBLUM, SANFORD; KORNFELD, ALAN; RKR REALTY ASSOCIATES, LLC; ROSENBLUM, JULES to 1520 AVENUE J REALTY, LLC
$3,500,000
2012-05-17
Agreement $3,500,000 — from 1520 AVENUE J REALTY, LLC to RKR REALTY ASSOCIATES, LLC; KORNFELD, ALAN; ROSENBLUM, JULES; ROSENBLUM, SANFORD
$3,500,000
2010-04-28
RPTT&RET $73,123,490 — from DUANE READE SHAREHOLDERS LLC to WALGREEN CO
$73,123,491
2007-12-05
Mortgage $3,500,000 — from 1520 AVENUE J REALTY, LLC to ROSENBLUM, SANFORD; RKR REALTY ASSOCIATES, LLC; KORNFELD, ALAN; ROSENBLUM, JULES
$3,500,000
2007-12-05
Deed $4,100,000 — from ROSENBLUM, JULES; KORNFELD, ALAN; ROSENBLUM, SANFORD to 1520 AVENUE J REALTY, LLC
$4,100,000
1990-06-13
Mortgage $250,000 — from KORNFELD, ALAN; ROSENBLUM, SANFORD; ROSENBLUM, JULES to INDEPENDENCE SAVS BANK
$250,000
1983-04-06
Mortgage $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
Year
Enforcement
Housing & tenants
Ownership & money
Health & systems
Total
2017
0
2
0
0
2
2018
0
1
0
0
1
2019
0
4
0
0
4
2020
0
7
0
0
7
2021
0
8
0
0
8
2022
0
12
0
0
12
2023
1
27
2
0
30
2024
1
19
5
1
26
2025
0
32
3
4
39
2026
0
1
0
1
2
This record is free. Keeping it free costs money. Servers, data pipelines, weekends. Pay what you want — a dollar helps.
2023-12-15311: General Construction/Plumbing — Cons - Contrary/Beyond Approved Plans/Permits
2023-12-15311: Building/Use — No Certificate Of Occupancy/Illegal/Contrary To CO
2023-12-15311: Building/Use — Illegal Conversion Of Residential Building/Space
2023-11-30EASE — from GESHER YEUDA, INC. to 1520 AVENUE J REALTY LLC
2023-10-31ECB CLASS - 1 violation: ALTERED/ CHANGED BUILDING OCCUPIED WITHOUT A VALID CERTIFICATE OF OCCUPANCY. AS PER JOB APPLICATION #B00776985; AT TIME OF INSPECT$1,250
2023-10-30311: Investigations and Discipline (IAD) — Investigative Inspection
2013-02-01Mortgage assigned — from KORNFELD, ALAN; ROSENBLUM, SANFORD; ROSENBLUM, JULES; RKR REALTY ASSOCIATES LLC to HASH 1000 LLC
2013-02-01Mortgage assigned — from RKR REALTY ASSOCIATES LLC; KORNFELD, ALAN; ROSENBLUM, SANFORD; ROSENBLUM, JULES to HASH 1000 LLC
2012
2012-08-29311: Graffiti — Graffiti
2012-05-17Mortgage assigned — from ROSENBLUM, JULES; ROSENBLUM, SANFORD; KORNFELD, ALAN to 1520 AVENUE J REALTY, LLC
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
2012-04-02311: Graffiti — Graffiti
2010
2010-08-05311: Graffiti — Graffiti
2010-04-28RPTT&RET $73,123,490 — from DUANE READE SHAREHOLDERS LLC to WALGREEN CO$73,123,491
2007
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
2000
2000-12-13CERT — from COMMISSIONER OF FINANCE OF NEW YORK CITY
1998
1998-06-11Permit PL — ISSUED
1998-04-24Permit EW — ISSUED
1998-04-24Permit EQ — ISSUED
1998-04-24Permit EQ — ISSUED
1998-04-24Permit EW — ISSUED
1997
1997-10-02Permit PL — ISSUED
1997-09-15Permit EQ — ISSUED
1997-09-15Permit AL — ISSUED
1995
1995-07-28Mortgage satisfied — from ROSENBLUM, SANFORD; KORNFELD, ALAN; ROSENBLUM, JULES to INDEPENDENCE SAVINGSBANK
1995-02-16Permit EW — ISSUED
1990
1990-06-13Mortgage satisfied — from KORNFELD, ALLAN AKA; ROSENBLUM, JULES; ROSENBLUM, SANFORD; KORNFELD, ALAN to INDEPENDENCE SAVINGSBK
1990-06-13Mortgage $250,000 — from KORNFELD, ALAN; ROSENBLUM, SANFORD; ROSENBLUM, JULES to INDEPENDENCE SAVS BANK$250,000
1983
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
1980
1980-12-02Deed — from 1520 AVENUE J ASSOCIATES to KORNFELD ALAN; ROSENBLUM JULES; ROSENBLUM SANFORD
1980-12-02Deed — from DORFMAN LESTER; LURIO EMANUEL DECD; FIRESTONE MURRAY to 1520 AVENUE J ASSOCIATES
1977
1977-06-09Deed — from CHESTHILL REALTY CORP to LURIO EMANUEL EXECUTOR OF
1973
1973-11-28SAGE — from LURIO FANNIE; CHESTHILL RLTY CORP
1973-08-17Mortgage assigned — from KINGS HIGHWAY SAVS BK; FRANKLIN SAVS B NY to LURIO FANNIE