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Miscellaneous two family
525 48TH STREET
BROOKLYN · BIN 3012327
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1901Year Built
2Stories
B9Building Class
R6BZoning
2,836 sfGross Floor Area
2Units
2 Active Violations ▸FDNY Report ↗
Miscellaneous two family · 2,003 sf lot · 1.42 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 3Under Construction4p · 1 filing · 20 docs
Floor 2Under Construction4p · 1 filing · 20 docs
Floor 1Under Construction4p · 1 filing · 20 docs
CellarUnder Construction4p · 1 filing · 20 docs
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
01/12/2026$1.5M—Private party → Private party$539/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
Chun Feng, Architect409/16/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
High Quality ConstructionGeneral Contractor104/09/2026
Mercury Building AssociatesGeneral Contractor107/08/2026
VMC Plumbing & HeatingPlumbing106/28/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
NKM Engineering6244409/16/2026
Building Lifecycle
All (21)Filed (4)Permit Issued (3)Violation (2)Special Inspection (12)
09/17/2026
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
09/16/2026
Filed — Alteration
GENERAL RENOVATION OF AN EXISTING 3 STORY 2-FAMILY BUILDING WITH REPAIR/REPLACE/NEW PARTITION, DOOR, CEILING, FLOOR, PAINTING WORK AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
B01360467-P2
09/16/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
NARESH MAHANGU
09/16/2026
Special inspection requirement — Energy Code Compliance Inspections
NARESH MAHANGU
06/19/2026
Filed — Alteration
GENERAL RENOVATION OF AN EXISTING 3 STORY 2-FAMILY BUILDING WITH REPAIR/REPLACE/NEW PARTITION, DOOR, CEILING, FLOOR, PAINTING WORK AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
B01360467-P1
06/09/2026
Special inspection requirement — Energy Code Compliance Inspections
NARESH MAHANGU
06/09/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
NARESH MAHANGU
05/22/2026
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
04/21/2026
Permit issued — General Construction
B01360467-I1-GC
04/09/2026
Permit issued — Plumbing
B01360467-S1-PL
04/07/2026
Permit issued — General Construction
B01360467-I1-GC
04/01/2026
Filed — Alteration
GENERAL RENOVATION OF AN EXISTING 3 STORY 2-FAMILY BUILDING WITH REPAIR/REPLACE/NEW PARTITION, DOOR, CEILING, FLOOR, PAINTING WORK AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
B01360467-S1
03/30/2026
Filed — Alteration
GENERAL RENOVATION OF AN EXISTING 3 STORY 2-FAMILY BUILDING WITH REPAIR/REPLACE/NEW PARTITION, DOOR, CEILING, FLOOR, PAINTING WORK AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
B01360467-I1
02/16/2026
Special inspection requirement — Fire-Resistance Rated Construction
NARESH MAHANGU
02/16/2026
Special inspection requirement — Final
Chun Feng
02/16/2026
Special inspection requirement — Fenestration air leakage
NARESH MAHANGU
02/16/2026
Special inspection requirement — Air barrier - visual inspection
NARESH MAHANGU
02/16/2026
Special inspection requirement — Fenestration areas
NARESH MAHANGU
02/16/2026
Special inspection requirement — Fenestration and door U-factor and product ratings
NARESH MAHANGU
02/16/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
NARESH MAHANGU
02/16/2026
Special inspection requirement — Energy Code Compliance Inspections
NARESH MAHANGU
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWGeneral ConstructionPermit IssuedMercury Building Associates04/21/2026
DOB NOWPlumbingPermit IssuedM. Spinelli PLB & Heating04/09/2026
DOB NOWGeneral ConstructionPermit IssuedHigh Quality Construction04/07/2026
1 project · most recent 09/16/2026
Gas Water/Sanitary
FiledStatusContractorScope
09/16/2026Permit IssuedVMC Plumbing & HeatingGas, Water/Sanitary
2 projects · most recent 05/26/2026
General Wiring
FiledStatusContractorScope
05/26/2026CompleteJ Y Electric3 meters, 3 new_meters
05/01/2026CompleteJ Y ElectricGeneral Wiring
▾Special Inspection Requirements (DOB NOW) — 12
DateRequirementInspectorRole
09/16/2026Fire-Resistant Penetrations and JointsNARESH MAHANGUspecial
09/16/2026Energy Code Compliance InspectionsNARESH MAHANGUprogress
06/09/2026Energy Code Compliance InspectionsNARESH MAHANGUprogress
06/09/2026Fire-Resistant Penetrations and JointsNARESH MAHANGUspecial
02/16/2026Fire-Resistance Rated ConstructionNARESH MAHANGUprogress
02/16/2026FinalChun Fengprogress
02/16/2026Fenestration air leakageNARESH MAHANGUenergy_progress
02/16/2026Air barrier - visual inspectionNARESH MAHANGUenergy_progress
02/16/2026Fenestration areasNARESH MAHANGUenergy_progress
02/16/2026Fenestration and door U-factor and product ratingsNARESH MAHANGUenergy_progress
02/16/2026Fire-Resistant Penetrations and JointsNARESH MAHANGUspecial
02/16/2026Energy Code Compliance InspectionsNARESH MAHANGUprogress
▾Documents — 23 on file (BIS + DOB NOW)
▸Plans & Drawings3
▸DOB NOWPlans/Sketch3
08/17/2026B01360467-S1Request digital key ↗
08/17/2026B01360467-I1Request digital key ↗
08/17/2026B01360467-P1Request digital key ↗
▸Applications & Permits4
▸DOB NOWLPC Approval/Permit4
10/04/2026B01360467-P2Open ↗
08/17/2026B01360467-P1Open ↗
08/13/2026B01360467-S1Open ↗
Showing 3 of 4 on file for this type
▸Seals & Professional Certifications12
▸DOB NOWProgress Inspector Seal & Signature5
10/04/2026B01360467-P2Open ↗
08/27/2026B01360467-I1Open ↗
08/27/2026B01360467-I1Open ↗
Showing 3 of 5 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature4
10/04/2026B01360467-P2Open ↗
08/17/2026B01360467-P1Open ↗
08/17/2026B01360467-I1Open ↗
Showing 3 of 4 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature3
10/04/2026B01360467-P2Open ↗
08/27/2026B01360467-I1Open ↗
08/23/2026B01360467-P1Open ↗
▸Environmental & Asbestos4
▸DOB NOWDEP ACP-5: Asbestos Assessment Report4
10/04/2026B01360467-P2Open ↗
08/17/2026B01360467-I1Open ↗
08/17/2026B01360467-P1Open ↗
Showing 3 of 4 on file for this type