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Walk-up cooperative
521 EAST 81 STREET
MANHATTAN · Upper East Side-Yorkville · BIN 1051135
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1910Year Built
5Stories
C6Building Class
R8BZoning
8,320 sfGross Floor Area
20Units
Rent Stabilized4 Open Violations ▸
Walk-up cooperative · Owner of record: 519 EAST 81 ST OWNERS CORP · 2,554 sf lot · 3.26 FAR built · Flood zone X
Locations of Work
No floor-level scope or drawing coverage on file for this building.
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
MNK ENTERPRISES LLC903/22/2026
MARLBORO REALTY ASSOCIATES303/22/2026
519 EAST 81 ST OWNERS CORP103/22/2026
519 EAST 81ST OWNERS CORP503/22/2026
EIGHTY FIRST ASSOC203/22/2026
519 E. 81 ST OWNERS CO.103/22/2026
81 ASSOCIATES103/22/2026
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
MOHAMMAD AHEAD, PE103/13/2023
ENTHINK ENGINEERS LLC203/10/2023
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
MNK ENTERPRISES LLCGeneral Contractor603/21/2026
DNS CONTRACTING NYC INCGeneral Contractor303/21/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
NORMAN C. LOK818103/13/2023
Building Lifecycle
All (41)Filed (3)Permit Issued (3)Signed Off (3)Violation (32)
04/16/2026
Violation issued (HPD, closed)
C
04/16/2026
Violation issued (HPD, closed)
C
09/15/2023
Signed off — Alteration
INSTALLATION OF TEMPORARY HEAVY DUTY SIDEWALK SHED AS PER PLANS. NO CHANGE IN USE, EGRESS OR OCCUPANCY. SIDEWALK SHED SHALL COMPLY WITH CHAPTER #33 OF 2022 THE NYC BUILDING CODE. LIVE LOAD 300PSF.
M00841995-I1
09/11/2023
Signed off — Alteration
PROPOSED INSTALLATION OF TEMPORARY PIPE SCAFFOLD AS PER PLANS. WORK SHALL COMPLY WITH CHAPTER #33 OF 2022 THE NYC BUILDING CODE. NO CHANGE IN USE, OCCUPANCY, OR EGRESS UNDER THIS APPLICATION.
M00842000-I1
08/23/2023
Signed off — Alteration
M00831084-I1
05/18/2023
Permit issued — General Construction
M00831084-I1-GC
03/15/2023
Violation issued (HPD, closed)
A
03/13/2023
Filed — Alteration
M00831084-I1
03/10/2023
Filed — Alteration
INSTALLATION OF TEMPORARY HEAVY DUTY SIDEWALK SHED AS PER PLANS. NO CHANGE IN USE, EGRESS OR OCCUPANCY. SIDEWALK SHED SHALL COMPLY WITH CHAPTER #33 OF 2022 THE NYC BUILDING CODE. LIVE LOAD 300PSF.
M00841995-I1
03/10/2023
Filed — Alteration
PROPOSED INSTALLATION OF TEMPORARY PIPE SCAFFOLD AS PER PLANS. WORK SHALL COMPLY WITH CHAPTER #33 OF 2022 THE NYC BUILDING CODE. NO CHANGE IN USE, OCCUPANCY, OR EGRESS UNDER THIS APPLICATION.
M00842000-I1
03/10/2023
Permit issued — Supported Scaffold
M00842000-I1-SF
03/10/2023
Permit issued — Sidewalk Shed
M00841995-I1-SH
02/15/2022
Violation issued (HPD, closed)
A
05/16/2019
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
05/16/2019
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
05/16/2019
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
02/04/2019
Violation issued (ECB, closed)
Quality of Life
02/04/2019
Violation issued (ECB, closed)
Construction
02/04/2019
Violation issued (ECB, closed)
Construction
02/04/2019
Violation issued (ECB, closed)
Construction
10/09/2018
Violation issued (HPD, closed)
I
01/03/2008
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
01/19/2007
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
01/06/2006
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
01/31/2005
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
02/13/2004
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
03/19/2003
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
03/26/2002
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
02/27/2001
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
02/07/2000
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
03/16/1999
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
05/04/1998
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
02/10/1997
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
05/22/1995
Violation issued (ECB, closed)
Construction
03/18/1994
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
03/18/1993
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
04/22/1991
Violation issued (ECB, closed)
Construction
04/22/1991
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
01/22/1990
Violation issued (ECB, closed)
Construction
08/30/1989
Violation issued (ECB, closed)
Construction
09/01/1983
Violation issued (HPD, open)
A
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWGeneral ConstructionSigned-offDNS CONTRACTING NYC INC05/18/2023
DOB NOWSupported ScaffoldSigned-offMNK ENTERPRISES LLC03/10/2023
DOB NOWSidewalk ShedSigned-offMNK ENTERPRISES LLC03/10/2023
3 projects · most recent 03/21/2025
General Wiring
FiledStatusContractorScope
03/21/2025Permit IssuedINFINITI ELECTRIC CORP1 meters, 1 new_meters
03/27/2023CompleteHORSEPOWER ELECTRIC.&General Wiring
03/10/2023CompleteRICHARD NEU—
Nothing on file for this building.
▾Documents — 7 on file (BIS + DOB NOW)
▸Plans & Drawings3
▸DOB NOWPlans/Sketch3
08/31/2026M00841995-I1Request digital key ↗
08/31/2026M00842000-I1Request digital key ↗
08/31/2026M00831084-I1Request digital key ↗
▸Seals & Professional Certifications3
▸DOB NOWDPL-1: Design Professional Seal & Signature3
08/31/2026M00831084-I1Open ↗
08/13/2026M00841995-I1Open ↗
08/13/2026M00842000-I1Open ↗
▸Environmental & Asbestos1
▸DOB NOWDEP ACP-5: Asbestos Assessment Report1
08/31/2026M00831084-I1Open ↗