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BuildNYC
One family attached or semi-detached
729 55TH STREET
BROOKLYN · BIN 3014844
💬 Discuss this project
1930Year Built
2Stories
A5Building Class
R6BZoning
1,288 sfGross Floor Area
1Units
1 Active Violation ▸FDNY Report ↗
One family attached or semi-detached · 2,404 sf lot · 0.54 FAR built · Flood zone X
Locations of Work
ArchitecturePlumbing
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 Construction9p · 2 filings · 20 docs
Floor 1Under Construction9p · 2 filings · 20 docs
CellarUnder Construction9p · 2 filings · 20 docs
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
11/03/2025$1.7M—— → —$1,320/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
NKM Engineering107/21/2026
Chun Feng, Architect407/13/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
Mercury Building AssociatesGeneral Contractor107/08/2026
American Standard P&H CororpPlumbing107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
Sq. Arch4802407/13/2026
Building Lifecycle
All (44)Filed (5)Permit Issued (2)Violation (4)Objection (8)Special Inspection (25)
10/02/2026
Objection resolved — Resolved
09/22/2026
Objection resolved — Addressed
09/15/2026
Objection resolved — Addressed
09/15/2026
Objection resolved — Addressed
09/01/2026
Objection raised — Scope
09/01/2026
Objection raised — Scope
08/31/2026
Objection raised — Scope
08/31/2026
Objection raised — Cost
07/21/2026
Filed — Alteration
HORIZANTAL ENLARGEMENT OF AN EXISTING 2-STY BRICK BUILDING ON 2ND FLOOR. NO CHANGE ON USE AND EGRESS OR OCCUPANCY.
B01429548-I1
07/14/2026
Special inspection requirement — Permanent certificate
07/14/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
07/14/2026
Special inspection requirement — Masonry
07/14/2026
Special inspection requirement — Energy Code Compliance Inspections
07/14/2026
Special inspection requirement — Fire-Resistance Rated Construction
07/14/2026
Special inspection requirement — Fenestration air leakage
07/14/2026
Special inspection requirement — Fenestration areas
07/14/2026
Special inspection requirement — Insulation placement and R values
07/14/2026
Special inspection requirement — Air barrier - visual inspection
07/14/2026
Special inspection requirement — Interior lighting power
07/14/2026
Special inspection requirement — Fenestration and door U-factor and product ratings
07/13/2026
Filed — Alteration
GENERAL RENOVATION OF 2-FAMILY BUILDING WITH REMOVING PARTITION, REPAIRING WALLS, CEILING, NEW FLOOR TILES, PARTITION, DOOR, REPLACING WINDOWS AND PAINTING AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
B01382859-P2
07/13/2026
Filed — Alteration
GENERAL RENOVATION OF 2-FAMILY BUILDING WITH REMOVING PARTITION, REPAIRING WALLS, CEILING, NEW FLOOR TILES, PARTITION, DOOR, REPLACING WINDOWS AND PAINTING AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
B01382859-P1
07/13/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
Chun Feng
07/13/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
Chun Feng
07/13/2026
Special inspection requirement — Energy Code Compliance Inspections
Chun Feng
07/13/2026
Special inspection requirement — Energy Code Compliance Inspections
Chun Feng
07/13/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
Chun Feng
07/13/2026
Special inspection requirement — Energy Code Compliance Inspections
Chun Feng
07/13/2026
Special inspection requirement — Final
Chun Feng
07/13/2026
Special inspection requirement — Fire-Resistance Rated Construction
Chun Feng
07/13/2026
Special inspection requirement — Fenestration and door U-factor and product ratings
Chun Feng
07/13/2026
Special inspection requirement — Interior lighting power
Chun Feng
07/13/2026
Special inspection requirement — Fenestration air leakage
Chun Feng
07/13/2026
Special inspection requirement — Air barrier - visual inspection
Chun Feng
07/13/2026
Special inspection requirement — Fenestration areas
Chun Feng
07/10/2026
Special inspection requirement — Structural Stability – Alterations of existing buildings
07/09/2026
Violation issued (ECB, closed)
Unknown
07/09/2026
Violation issued (ECB, closed)
Construction
07/09/2026
Violation issued (ECB, closed)
Construction
07/09/2026
Violation issued (ECB, open)
Construction
04/17/2026
Permit issued — Plumbing
B01382859-S1-PL
04/16/2026
Permit issued — General Construction
B01382859-I1-GC
04/09/2026
Filed — Alteration
GENERAL RENOVATION OF 2-FAMILY BUILDING WITH REMOVING PARTITION, REPAIRING WALLS, CEILING, NEW FLOOR TILES, PARTITION, DOOR, REPLACING WINDOWS AND PAINTING AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
B01382859-I1
04/09/2026
Filed — Alteration
GENERAL RENOVATION OF 2-FAMILY BUILDING WITH REMOVING PARTITION, REPAIRING WALLS, CEILING, NEW FLOOR TILES, PARTITION, DOOR, REPLACING WINDOWS AND PAINTING AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
B01382859-S1
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWPlumbingPermit IssuedAmerican Standard P&H Cororp04/17/2026
DOB NOWGeneral ConstructionPermit IssuedMercury Building Associates04/16/2026
1 project · most recent 07/13/2026
Gas Water/Sanitary
FiledStatusContractorScope
07/13/2026Permit IssuedAmerican Standard P&HGas, Water/Sanitary
1 project · most recent 05/21/2026
General Wiring
FiledStatusContractorScope
05/21/2026Permit IssuedEric & NG ElectricalGeneral Wiring
1 project · most recent 07/13/2026
FiledStatusContractorScope
07/13/2026Permit IssuedAmerican Standard P&H1 scope_items
▾Special Inspection Requirements (DOB NOW) — 25
DateRequirementInspectorRole
07/14/2026Permanent certificate—energy_progress
07/14/2026Fire-Resistant Penetrations and Joints—special
07/14/2026Masonry—special
07/14/2026Energy Code Compliance Inspections—progress
07/14/2026Fire-Resistance Rated Construction—progress
07/14/2026Fenestration air leakage—energy_progress
07/14/2026Fenestration areas—energy_progress
07/14/2026Insulation placement and R values—energy_progress
07/14/2026Air barrier - visual inspection—energy_progress
07/14/2026Interior lighting power—energy_progress
07/14/2026Fenestration and door U-factor and product ratings—energy_progress
07/13/2026Fire-Resistant Penetrations and JointsChun Fengspecial
07/13/2026Fire-Resistant Penetrations and JointsChun Fengspecial
07/13/2026Energy Code Compliance InspectionsChun Fengprogress
07/13/2026Energy Code Compliance InspectionsChun Fengprogress
07/13/2026Fire-Resistant Penetrations and JointsChun Fengspecial
07/13/2026Energy Code Compliance InspectionsChun Fengprogress
07/13/2026FinalChun Fengprogress
07/13/2026Fire-Resistance Rated ConstructionChun Fengprogress
07/13/2026Fenestration and door U-factor and product ratingsChun Fengenergy_progress
07/13/2026Interior lighting powerChun Fengenergy_progress
07/13/2026Fenestration air leakageChun Fengenergy_progress
07/13/2026Air barrier - visual inspectionChun Fengenergy_progress
07/13/2026Fenestration areasChun Fengenergy_progress
07/10/2026Structural Stability – Alterations of existing buildings—special
▾Documents — 31 on file (BIS + DOB NOW)
▸Plans & Drawings5
▸DOB NOWPlans/Sketch5
09/03/2026B01382859-I1Request digital key ↗
09/03/2026B01382859-S1Request digital key ↗
09/03/2026B01382859-P1Request digital key ↗
Showing 3 of 5 on file for this type
▸Zoning, Tax Lot & Property Records7
▸DOB NOWRestrictive Declaration/Easement 14
09/03/2026B01382859-P1Open ↗
09/03/2026B01382859-P2Open ↗
08/13/2026B01382859-S1Open ↗
Showing 3 of 4 on file for this type
▸DOB NOWZD1: DOB Zoning Diagram2
10/12/2026B01429548-I1Open ↗
08/16/2026B01429548-I1Open ↗
▸DOB NOWZoning Exhibit form (1-5)1
10/12/2026B01429548-I1Open ↗
▸Seals & Professional Certifications12
▸DOB NOWDPL-1: Design Professional Seal & Signature5
09/03/2026B01382859-I1Open ↗
09/03/2026B01382859-S1Open ↗
09/03/2026B01382859-P1Open ↗
Showing 3 of 5 on file for this type
▸DOB NOWProgress Inspector Seal & Signature4
08/29/2026B01382859-P2Open ↗
08/23/2026B01382859-S1Open ↗
08/23/2026B01382859-P1Open ↗
Showing 3 of 4 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature3
08/29/2026B01382859-P2Open ↗
08/23/2026B01382859-S1Open ↗
08/23/2026B01382859-P1Open ↗
▸Environmental & Asbestos5
▸DOB NOWDEP ACP-5: Asbestos Assessment Report5
09/03/2026B01382859-I1Open ↗
09/03/2026B01382859-S1Open ↗
09/03/2026B01382859-P1Open ↗
Showing 3 of 5 on file for this type
▸Other Documents2
▸DOB NOWLocal Law 92/94 of 2019 Sustainable Roof Zone1
08/16/2026B01429548-I1Open ↗
▸DOB NOWSite Survey: Initial1
08/16/2026B01429548-I1Open ↗