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Four families
913 UNION STREET
BROOKLYN · BIN 3024585
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1895Year Built
4Stories
C3Building Class
R7BZoning
4,449 sfGross Floor Area
4Units
Rent Stabilized1 Open Violation ▸FDNY Report ↗
Four families · Owner of record: KEYSTONE 913 UNION LLC · 1,800 sf lot · 2.47 FAR built · Flood zone X
Locations of Work
ArchitectureMechanicalPlumbing
Roof4p · 1 filing · 14 docs
Floor 41p · 1 filing · 14 docs
Floor 32p · 2 filings · 20 docs
Floor 21p · 1 filing · 10 docs
Floor 11p · 1 filing · 14 docs
Basement7p · 3 filings · 20 docs
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
KEYSTONE 913 UNION LLC103/22/2026
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
01/30/2026$5.8M—— → —$1,292/sf building
08/11/2022$3.9M—Private party → KEYSTONE 913 UNION LLC$882/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
SA-DA ARCHITECTURE501/26/2024
PVE ENGINEERING108/18/2023
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
BIG ORANGE EXPEDITING1203/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
NAPOLI CONSTRUCTION OF NYGeneral Contractor1203/21/2026
INFINITI ELECTRIC CORPElectrical103/22/2026
INFINITI ESC PLUMBING CORPlumbing107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
SA-DA ARCHITECTURE2640501/26/2024
ASE ENGINEERING PLLC5785108/18/2023
Building Lifecycle
All (65)Filed (6)Permit Issued (5)Signed Off (4)Violation (12)Inspection (4)Objection (18)Special Inspection (16)
05/15/2024
Signed off — Alteration
STRUCTURAL WORK AS PER PLANS FILED HEREWITH. NO CHANGE IN USE, EGRESS AND OCCUPANCY.
B00907969-I1
04/16/2024
Signed off — Alteration
WORK TO BASEMENT, FLOORS 1,2,3,4 AND ROOF OF AN EXISTING 4 FAMILY, 5 STORY MULTIPLE DWELLING BUILDING. ALTERATIONS TO CONSIST OF NEW INTERIOR PARTITION WORK AND FENESTRATION REPLACEMENT. NO CHANGE TO ZOONING, USE, EGRESS OR OCCUPANCY UNDER THIS APPLICATIO
B00813988-I1
04/16/2024
Signed off — Alteration
PLUMBING WORK TO BASEMENT, FLOORS 1.2.3.4 AND ROOF OF AN EXISTING 4 FAMILY, 5 STORY MULTIPLE DWELLING BUILDING. ALTERATIONS TO CONSIST OF NEW, REMOVED + RELOCATED PLUMBING FIXTURES. NO CHANGE TO ZOONING, USEM EGRESS OR OCCUPANCY UNDER THIS APPLICATION.
B00808994-I1
04/16/2024
Signed off — Alteration
WORK TO BASEMENT, 1ST-4TH FLOORS AND ROOF OF AN EXISTING 4 FAMILY, 5 STORY MULTIPLE DWELLING BUILDING. ALTERATIONS TO CONSIST OF A NEW HVAC SYSTEM AND NEW BATHROOM EXHAUST VENTS. NO CHANGE TO ZONING, USE, EGRESS OR OCCUPANCY.
B00814891-I1
04/12/2024
Violation issued (HPD, closed)
A
04/03/2024
Permit issued — Mechanical Systems
B00814891-I1-MS
02/05/2024
Inspection — Certified Water and Sanitary-WS-Fixtures-Finish
Certified
View inspection ↗
01/29/2024
Special inspection requirement — Concrete - Cast-In-Place
Alexander Stoltz
01/29/2024
Special inspection requirement — Fire-Resistant Penetrations and Joints
Alexander Stoltz
01/29/2024
Special inspection requirement — Fire-Resistance Rated Construction
Alexander Stoltz
01/29/2024
Special inspection requirement — Final
Alexander Stoltz
01/29/2024
Special inspection requirement — Fire-Resistant Penetrations and Joints
Alexander Stoltz
01/26/2024
Filed — Alteration
PLUMBING WORK TO BASEMENT, FLOORS 1.2.3.4 AND ROOF OF AN EXISTING 4 FAMILY, 5 STORY MULTIPLE DWELLING BUILDING. ALTERATIONS TO CONSIST OF NEW, REMOVED + RELOCATED PLUMBING FIXTURES. NO CHANGE TO ZOONING, USEM EGRESS OR OCCUPANCY UNDER THIS APPLICATION.
B00808994-P1
01/26/2024
Filed — Alteration
WORK TO BASEMENT, FLOORS 1,2,3,4 AND ROOF OF AN EXISTING 4 FAMILY, 5 STORY MULTIPLE DWELLING BUILDING. ALTERATIONS TO CONSIST OF NEW INTERIOR PARTITION WORK AND FENESTRATION REPLACEMENT. NO CHANGE TO ZOONING, USE, EGRESS OR OCCUPANCY UNDER THIS APPLICATIO
B00813988-P2
12/29/2023
Permit issued — Structural
B00907969-I1-ST
11/20/2023
Violation issued (HPD, closed)
I
10/10/2023
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Roughing
Certified
View inspection ↗
10/10/2023
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Underground
Certified
View inspection ↗
10/10/2023
Special inspection requirement — Fire-Resistant Penetrations and Joints
Alexander Stoltz
10/02/2023
Inspection — Certified Remove/Cap - work done in accordance with code
Certified
View inspection ↗
09/18/2023
Permit issued — Plumbing
B00808994-I1-PL
08/23/2023
Objection raised — Structural
08/23/2023
Objection resolved — Addressed
08/23/2023
Objection raised — Admin
08/23/2023
Objection resolved — Addressed
08/23/2023
Objection raised — Admin
08/23/2023
Objection resolved — Addressed
08/23/2023
Objection raised — Admin
08/23/2023
Objection resolved — Addressed
08/23/2023
Objection raised — Admin
08/23/2023
Objection resolved — Addressed
08/18/2023
Filed — Alteration
STRUCTURAL WORK AS PER PLANS FILED HEREWITH. NO CHANGE IN USE, EGRESS AND OCCUPANCY.
B00907969-I1
07/21/2023
Special inspection requirement — Final
alon egozi
07/21/2023
Special inspection requirement — Post-installed Anchors
alon egozi
07/21/2023
Special inspection requirement — Structural Stability – Alterations of existing buildings
alon egozi
07/21/2023
Special inspection requirement — Structural Steel - Details
alon egozi
07/21/2023
Special inspection requirement — Structural Wood Frame
alon egozi
07/18/2023
Permit issued — General Construction
B00813988-I1-GC
04/06/2023
Permit issued — General Construction
B00813988-I1-GC
04/03/2023
Objection resolved — Addressed
04/03/2023
Objection resolved — Addressed
04/03/2023
Objection resolved — Addressed
04/03/2023
Objection resolved — Addressed
04/03/2023
Special inspection requirement — Energy Code Compliance Inspections
Alexander Stoltz
03/31/2023
Objection raised — Inspections
03/31/2023
Objection raised — Inspections
03/31/2023
Objection raised — Zoning
03/31/2023
Objection raised — Scope
03/28/2023
Filed — Alteration
PLUMBING WORK TO BASEMENT, FLOORS 1.2.3.4 AND ROOF OF AN EXISTING 4 FAMILY, 5 STORY MULTIPLE DWELLING BUILDING. ALTERATIONS TO CONSIST OF NEW, REMOVED + RELOCATED PLUMBING FIXTURES. NO CHANGE TO ZOONING, USEM EGRESS OR OCCUPANCY UNDER THIS APPLICATION.
B00808994-I1
03/28/2023
Filed — Alteration
WORK TO BASEMENT, 1ST-4TH FLOORS AND ROOF OF AN EXISTING 4 FAMILY, 5 STORY MULTIPLE DWELLING BUILDING. ALTERATIONS TO CONSIST OF A NEW HVAC SYSTEM AND NEW BATHROOM EXHAUST VENTS. NO CHANGE TO ZONING, USE, EGRESS OR OCCUPANCY.
B00814891-I1
03/27/2023
Violation issued (HPD, closed)
A
03/21/2023
Filed — Alteration
WORK TO BASEMENT, FLOORS 1,2,3,4 AND ROOF OF AN EXISTING 4 FAMILY, 5 STORY MULTIPLE DWELLING BUILDING. ALTERATIONS TO CONSIST OF NEW INTERIOR PARTITION WORK AND FENESTRATION REPLACEMENT. NO CHANGE TO ZOONING, USE, EGRESS OR OCCUPANCY UNDER THIS APPLICATIO
B00813988-I1
01/19/2023
Special inspection requirement — Fire-Resistant Penetrations and Joints
Alexander Stoltz
01/19/2023
Special inspection requirement — Heating Systems
Alexander Stoltz
01/18/2023
Special inspection requirement — Mechanical Systems
Alexander Stoltz
01/18/2023
Special inspection requirement — Final
Alexander Stoltz
03/02/2022
Violation issued (HPD, closed)
A
04/13/2021
Violation issued (HPD, closed)
A
10/31/2019
Violation issued (HPD, closed)
I
11/15/2016
Violation issued (HPD, closed)
I
Latest 60 of 65 events.
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWMechanical SystemsSigned-offNAPOLI CONSTRUCTION OF NY04/03/2024
DOB NOWStructuralSigned-offNAPOLI CONSTRUCTION OF NY12/29/2023
DOB NOWPlumbingSigned-offINFINITI ESC PLUMBING COR09/18/2023
DOB NOWGeneral ConstructionSigned-offNAPOLI CONSTRUCTION OF NY07/18/2023
DOB NOWGeneral ConstructionSigned-offNAPOLI CONSTRUCTION OF NY04/06/2023
BISPLISSUEDWALTER J.GRANDE P & H INC04/24/1998
BIS—ISSUEDSTETT REALTY ASSOCIATESW04/14/1998
1 project · most recent 04/18/2023
General Wiring
FiledStatusContractorScope
04/18/2023CompleteINFINITI ELECTRIC CORPGeneral Wiring
▾Field Inspections (DOB CAP) — 4
DateTypeResultReport
02/05/2024Certified Water and Sanitary-WS-Fixtures-FinishCertifiedView ↗
10/10/2023Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
10/10/2023Certified Water and Sanitary-WS-Sanitary Piping-UndergroundCertifiedView ↗
10/02/2023Certified Remove/Cap - work done in accordance with codeCertifiedView ↗
▾Special Inspection Requirements (DOB NOW) — 16
DateRequirementInspectorRole
01/29/2024Concrete - Cast-In-PlaceAlexander Stoltzspecial
01/29/2024Fire-Resistant Penetrations and JointsAlexander Stoltzspecial
01/29/2024Fire-Resistance Rated ConstructionAlexander Stoltzprogress
01/29/2024FinalAlexander Stoltzprogress
01/29/2024Fire-Resistant Penetrations and JointsAlexander Stoltzspecial
10/10/2023Fire-Resistant Penetrations and JointsAlexander Stoltzspecial
07/21/2023Finalalon egoziprogress
07/21/2023Post-installed Anchorsalon egozispecial
07/21/2023Structural Stability – Alterations of existing buildingsalon egozispecial
07/21/2023Structural Steel - Detailsalon egozispecial
07/21/2023Structural Wood Framealon egoziprogress
04/03/2023Energy Code Compliance InspectionsAlexander Stoltzprogress
01/19/2023Fire-Resistant Penetrations and JointsAlexander Stoltzspecial
01/19/2023Heating SystemsAlexander Stoltzspecial
01/18/2023Mechanical SystemsAlexander Stoltzspecial
01/18/2023FinalAlexander Stoltzprogress
▾Documents — 42 on file (BIS + DOB NOW)
▸Plans & Drawings6
▸DOB NOWPlans/Sketch6
08/27/2026B00808994-I1Request digital key ↗
08/27/2026B00808994-P1Request digital key ↗
08/26/2026B00813988-I1Request digital key ↗
Showing 3 of 6 on file for this type
▸Applications & Permits6
▸DOB NOWLPC Approval/Permit6
08/13/2026B00814891-I1Open ↗
08/13/2026B00813988-I1Open ↗
08/13/2026B00813988-P2Open ↗
Showing 3 of 6 on file for this type
▸Seals & Professional Certifications19
▸DOB NOWSpecial Inspector Seal & Signature8
09/17/2026B00808994-P1Open ↗
09/02/2026B00808994-I1Open ↗
08/28/2026B00813988-I1Open ↗
Showing 3 of 8 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature6
08/27/2026B00808994-I1Open ↗
08/27/2026B00808994-P1Open ↗
08/27/2026B00907969-I1Open ↗
Showing 3 of 6 on file for this type
▸DOB NOWProgress Inspector Seal & Signature5
08/28/2026B00813988-I1Open ↗
08/28/2026B00813988-I1Open ↗
08/26/2026B00907969-I1Open ↗
Showing 3 of 5 on file for this type
▸Environmental & Asbestos6
▸DOB NOWDEP ACP-5: Asbestos Assessment Report6
08/27/2026B00808994-I1Open ↗
08/27/2026B00808994-P1Open ↗
08/26/2026B00813988-P2Open ↗
Showing 3 of 6 on file for this type
▸Other Documents5
▸DOB NOWProof of Historic Building5
08/13/2026B00808994-P1Open ↗
08/13/2026B00808994-I1Open ↗
08/13/2026B00813988-I1Open ↗
Showing 3 of 5 on file for this type