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Two family brick
515 81ST STREET
BROOKLYN · Bay Ridge · BIN 3151416
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1915Year Built
2Stories
B1Building Class
R4-1Zoning
2,570 sfGross Floor Area
2Units
Rent Stabilized1 Active Violation ▸
Two family brick · 2,633 sf lot · 0.98 FAR built · Flood zone X
Locations of Work
ArchitectureMechanicalPlumbingGeneral
Names shown beside floors are taken automatically from the text of filed documents and may be incomplete or wrong.
Permit Issued — active, not yet Signed-off
Floor 2Under Construction3p · 1 filing · 20 docs
Floor 1Under Construction3p · 1 filing · 20 docs
CellarUnder Construction3p · 1 filing · 20 docs
Site & exteriorUnder Construction1 filing · 20 docs
Filed — no permit issued4p · 1 filing · 1 doc
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
03/31/2026$1.7M—Private party → Private party$661/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
Chun Feng, Architect309/11/2026
Bild Architecture103/16/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
Mercury Building AssociatesGeneral Contractor207/08/2026
American Standard P&H CororpPlumbing107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
Sq. Arch4802309/11/2026
NKM Engineering6244105/08/2026
Building Lifecycle
All (39)Filed (4)Permit Issued (3)Violation (7)Objection (1)Special Inspection (24)
09/11/2026
Filed — Alteration
GENERAL RENOVATION OF 2-FAMILY HOUSE WITH REPLACE/RELOCATED/NEW PLUMBING FIXTURES AND BOILER AND H.W.H AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
B01396412-P1
09/10/2026
Special inspection requirement — HVAC-R and service water heating equipment
Chun Feng
09/10/2026
Special inspection requirement — Maintenance information
Chun Feng
09/10/2026
Special inspection requirement — HVAC-R and service water piping design and insulation
Chun Feng
09/10/2026
Special inspection requirement — Energy Code Compliance Inspections
Chun Feng
09/10/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
Chun Feng
09/10/2026
Special inspection requirement — HVAC-R and service water heating system controls
Chun Feng
05/26/2026
Permit issued — Mechanical Systems
B01396412-I1-GC
05/26/2026
Permit issued — Mechanical Systems
B01396412-I1-MS
05/21/2026
Permit issued — Plumbing
B01396412-S1-PL
05/08/2026
Filed — Alteration
GENERAL RENOVATION OF 2-FAMILY HOUSE WITH REPLACE/RELOCATED/NEW PLUMBING FIXTURES AND BOILER AND H.W.H AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
B01396412-S1
05/08/2026
Filed — Alteration
GENERAL RENOVATION OF 2-FAMILY HOUSE WITH REPLACE/RELOCATED/NEW PLUMBING FIXTURES AND BOILER AND H.W.H AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
B01396412-I1
05/07/2026
Special inspection requirement — HVAC-R and service water heating system controls
Chun Feng
05/07/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
Chun Feng
05/07/2026
Special inspection requirement — HVAC-R and service water heating equipment
Chun Feng
05/07/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
Chun Feng
05/07/2026
Special inspection requirement — Energy Code Compliance Inspections
Chun Feng
05/07/2026
Special inspection requirement — HVAC-R and service water heating equipment
Chun Feng
05/07/2026
Special inspection requirement — Maintenance information
Chun Feng
05/07/2026
Special inspection requirement — HVAC-R and service water piping design and insulation
Chun Feng
05/07/2026
Special inspection requirement — Fenestration areas
Chun Feng
05/07/2026
Special inspection requirement — HVAC-R and service water piping design and insulation
Chun Feng
05/07/2026
Special inspection requirement — Energy Code Compliance Inspections
Chun Feng
05/07/2026
Special inspection requirement — Fire-Resistance Rated Construction
Chun Feng
05/07/2026
Special inspection requirement — Air barrier - visual inspection
Chun Feng
05/07/2026
Special inspection requirement — Fenestration air leakage
Chun Feng
05/07/2026
Special inspection requirement — Fenestration and door U-factor and product ratings
Chun Feng
05/07/2026
Special inspection requirement — HVAC-R and service water heating system controls
Chun Feng
05/02/2026
Special inspection requirement — Final
Chun Feng
05/02/2026
Special inspection requirement — Mechanical Systems
NARESH MAHANGU
03/27/2026
Objection raised — Other
03/16/2026
Filed — Alteration
REMOVAL OF ILEGAL REAR ENTRANCE AND RESTORING ORIGINAL CONDITION TO RESOLVE WWP VIOLATION #37011658K.
B01351414-I1
01/23/2026
Violation issued (HPD, closed)
I
01/22/2026
Violation issued (HPD, closed)
C
01/22/2026
Violation issued (HPD, open)
B
07/06/2018
Violation issued (ECB, closed)
Construction
11/02/2017
Violation issued (ECB, closed)
Construction
12/13/2011
Violation issued (ECB, closed)
Plumbing
11/01/1989
Violation issued (ECB, closed)
Construction
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWMechanical SystemsPermit IssuedMercury Building Associates05/26/2026
DOB NOWMechanical SystemsPermit IssuedMercury Building Associates05/26/2026
DOB NOWPlumbingPermit IssuedAmerican Standard P&H Cororp05/21/2026
1 project · most recent 09/11/2026
Air Conditioning Systems
FiledStatusContractorScopeMake / Model / Capacity
09/11/2026Permit IssuedMercury Building AssociatesAir Conditioning Systems
Cooling
Mitsubishi Electric MUZ-WX09NL 9,000 BTU · Split System ×1
MUZ-WX18NL 18,000 BTU · Split System ×1
1 project · most recent 09/11/2026
Gas Water/Sanitary
FiledStatusContractorScope
09/11/2026Permit IssuedAmerican Standard P&HGas, Water/Sanitary
1 project · most recent 06/19/2026
General Wiring
FiledStatusContractorScope
06/19/2026Permit IssuedJ Y ElectricGeneral Wiring
▾Special Inspection Requirements (DOB NOW) — 24
DateRequirementInspectorRole
09/10/2026HVAC-R and service water heating equipmentChun Fengenergy_progress
09/10/2026Maintenance informationChun Fengenergy_progress
09/10/2026HVAC-R and service water piping design and insulationChun Fengenergy_progress
09/10/2026Energy Code Compliance InspectionsChun Fengprogress
09/10/2026Fire-Resistant Penetrations and JointsChun Fengspecial
09/10/2026HVAC-R and service water heating system controlsChun Fengenergy_progress
05/07/2026HVAC-R and service water heating system controlsChun Fengenergy_progress
05/07/2026Fire-Resistant Penetrations and JointsChun Fengspecial
05/07/2026HVAC-R and service water heating equipmentChun Fengenergy_progress
05/07/2026Fire-Resistant Penetrations and JointsChun Fengspecial
05/07/2026Energy Code Compliance InspectionsChun Fengprogress
05/07/2026HVAC-R and service water heating equipmentChun Fengenergy_progress
05/07/2026Maintenance informationChun Fengenergy_progress
05/07/2026HVAC-R and service water piping design and insulationChun Fengenergy_progress
05/07/2026Fenestration areasChun Fengenergy_progress
05/07/2026HVAC-R and service water piping design and insulationChun Fengenergy_progress
05/07/2026Energy Code Compliance InspectionsChun Fengprogress
05/07/2026Fire-Resistance Rated ConstructionChun Fengprogress
05/07/2026Air barrier - visual inspectionChun Fengenergy_progress
05/07/2026Fenestration air leakageChun Fengenergy_progress
05/07/2026Fenestration and door U-factor and product ratingsChun Fengenergy_progress
05/07/2026HVAC-R and service water heating system controlsChun Fengenergy_progress
05/02/2026FinalChun Fengprogress
05/02/2026Mechanical SystemsNARESH MAHANGUspecial
▾Documents — 32 on file (BIS + DOB NOW)
▸Plans & Drawings2
▸DOB NOWPlans/Sketch2
08/17/2026B01396412-I1Request digital key ↗
08/17/2026B01396412-S1Request digital key ↗
▸Seals & Professional Certifications27
▸DOB NOWProgress Inspector Seal & Signature20
10/14/2026B01396412-P1Open ↗
10/14/2026B01396412-P1Open ↗
10/14/2026B01396412-P1Open ↗
Showing 3 of 20 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature4
10/14/2026B01396412-P1Open ↗
08/26/2026B01396412-I1Open ↗
08/26/2026B01396412-I1Open ↗
Showing 3 of 4 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature3
10/14/2026B01396412-P1Open ↗
08/17/2026B01396412-I1Open ↗
08/17/2026B01396412-S1Open ↗
▸Environmental & Asbestos3
▸DOB NOWDEP ACP-5: Asbestos Assessment Report3
10/14/2026B01396412-P1Open ↗
08/17/2026B01396412-I1Open ↗
08/17/2026B01396412-S1Open ↗