← Back
Two family converted from one family
877 UNION STREET
BROOKLYN · BIN 3024603
💬 Discuss this project
1885Year Built
3Stories
B3Building Class
R7BZoning
4,032 sfGross Floor Area
2Units
Two family converted from one family · 1,995 sf lot · 2.02 FAR built · Flood zone X
Locations of Work
ArchitectureMechanicalPlumbing
Permit Issued — active, not yet Signed-off
Floor 3Under Construction16p · 2 filings · 20 docs
Floor 2Under Construction15p · 2 filings · 20 docs
Floor 1Under Construction14p · 2 filings · 20 docs
CellarUnder Construction6p · 1 filing · 8 docs
BasementUnder Construction5p · 1 filing · 8 docs
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
12/11/2024$4.6M—Private party → Private party$1,141/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
VILLA PEX CONSULTING ENGINEERING212/02/2025
UNION STREET STUDIO, LLC611/10/2025
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
PELHAM BAY CONSTRUCTION LGeneral Contractor507/08/2026
CORNERSTONE MECHANICAL INGeneral Contractor104/09/2026
COBOT PLUMBING AND HEATING INCPlumbing107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
VILLA PEX CONSULTING ENGI8408212/02/2025
FRAMEWORK ENGINEERING PC8217211/10/2025
Building Lifecycle
All (75)Filed (8)Permit Issued (7)Signed Off (2)Inspection (1)Objection (54)Special Inspection (3)
06/16/2026
Signed off — Alteration
Interior renovation comprising alterations to partitions and finishes; construct new bathroom; no change to use, occupancy, egress or bulk.
B01169074-S2
03/19/2026
Objection resolved — Addressed
03/12/2026
Objection resolved — Addressed
02/02/2026
Objection resolved — Addressed
02/02/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
JAMES NAPOLI
12/26/2025
Permit issued — General Construction
B01169074-I1-GC
12/26/2025
Permit issued — General Construction
B01205972-I1-GC
12/11/2025
Objection raised — Scope
12/11/2025
Objection raised — Fire_Protection
12/02/2025
Filed — Alteration
Interior renovation comprising alterations to partitions and finishes; construct new bathroom; no change to use, occupancy, egress or bulk.
B01169074-P3
11/18/2025
Objection raised — Admin
11/10/2025
Filed — Alteration
Interior renovation comprising alterations to partitions and finishes; construct new bathroom; no change to use, occupancy, egress or bulk.
B01169074-P1
11/06/2025
Signed off — Alteration
Interior removal of non-loadbearing partitions and finishes only. Final construction to be performed under separate application. No change to use occupancy or egress.
B01205868-I1
11/05/2025
Filed — Alteration
Interior renovation comprising alterations to partitions and finishes; construct new bathroom; no change to use, occupancy, egress or bulk.
B01169074-P2
10/24/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
JAMES NAPOLI
09/02/2025
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Roughing
Certified
View inspection ↗
07/28/2025
Permit issued — Plumbing
B01169074-S1-PL
07/23/2025
Objection resolved — Addressed
07/15/2025
Permit issued — General Construction
B01169074-I1-GC
07/15/2025
Permit issued — General Construction
B01205972-I1-GC
07/07/2025
Objection raised — Cost
07/01/2025
Objection resolved — Addressed
07/01/2025
Objection resolved — Addressed
06/27/2025
Objection resolved — Addressed
06/26/2025
Objection resolved — Addressed
06/26/2025
Objection resolved — Addressed
06/24/2025
Permit issued — Mechanical Systems
B01169074-S2-MS
06/18/2025
Objection resolved — Addressed
06/17/2025
Objection resolved — Addressed
06/17/2025
Objection resolved — Addressed
06/17/2025
Objection resolved — Addressed
06/09/2025
Objection resolved — Addressed
06/04/2025
Objection resolved — Addressed
06/04/2025
Objection resolved — Addressed
06/04/2025
Objection resolved — Addressed
06/04/2025
Objection resolved — Addressed
05/15/2025
Permit issued — General Construction
B01205868-I1-GC
05/05/2025
Objection resolved — Addressed
05/05/2025
Objection resolved — Addressed
05/05/2025
Objection resolved — Addressed
05/05/2025
Objection resolved — Addressed
05/05/2025
Objection resolved — Addressed
05/02/2025
Objection resolved — Addressed
05/01/2025
Objection raised — Zoning
05/01/2025
Objection raised — Cost
05/01/2025
Objection raised — Fire_Protection
05/01/2025
Objection raised — Fire_Protection
05/01/2025
Objection raised — Fire_Protection
05/01/2025
Objection raised — Zoning
04/23/2025
Filed — Alteration CO
Reconfiguration of existing 2-family dwelling. Relocation of kitchen and other minor modifications. No change to building use group, occupancy or egress.
B01205972-I1
04/23/2025
Objection resolved — Addressed
04/21/2025
Objection raised — Cost
04/21/2025
Objection raised — Energy
04/09/2025
Filed — Alteration
Interior removal of non-loadbearing partitions and finishes only. Final construction to be performed under separate application. No change to use occupancy or egress.
B01205868-I1
04/06/2025
Objection resolved — Addressed
04/06/2025
Objection resolved — Addressed
04/04/2025
Special inspection requirement — Final
Brynnemarie Lanciotti
03/11/2025
Objection raised — Scope
03/11/2025
Objection raised — Mechanical
03/11/2025
Objection raised — Fire_Protection
Latest 60 of 75 events.
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWGeneral ConstructionPermit IssuedPELHAM BAY CONSTRUCTION L12/26/2025
DOB NOWGeneral ConstructionPermit IssuedPELHAM BAY CONSTRUCTION L12/26/2025
DOB NOWPlumbingPermit IssuedCOBOT PLUMBING AND HEATIN07/28/2025
DOB NOWGeneral ConstructionPermit IssuedPELHAM BAY CONSTRUCTION L07/15/2025
DOB NOWGeneral ConstructionPermit IssuedPELHAM BAY CONSTRUCTION L07/15/2025
DOB NOWMechanical SystemsSigned-offCORNERSTONE MECHANICAL IN06/24/2025
DOB NOWGeneral ConstructionSigned-offPELHAM BAY CONSTRUCTION L05/15/2025
BISOTISSUEDV & G CUSTOM BUILDERS04/21/2017
BISPLISSUEDJETWORK SERVICES LLC02/14/2017
BISOTISSUEDV & G CUSTOM BUILDERS01/26/2017
1 project · most recent 12/02/2025
Heating and Air Conditioning Systems Ventilation Systems
FiledStatusContractorScopeMake / Model / Capacity
12/02/2025Permit IssuedPELHAM BAY CONSTRUCTION LHeating and Air Conditioning Systems, Ventilation Systems
Heat / Cool
Mitsubishi Electric MITSUBISHI MXZ-SM48NAMHZ2 48,000 BTU · Heat Pump Outdoor ×4
Mitsubishi PEFY-P30NMAU-E4 30,000 BTU · Vrf Indoor ×4
Mitsubishi PKFY-P06NLMU-ER1.TH 60,000 BTU · Vrf Indoor ×4
MITSUBISHI MXZ-SM42NAMHZ-U1 42,000 BTU · Heat Pump Outdoor ×2
Mitsubishi PEFY-P18NMAU-E4 18,000 BTU · Vrf Indoor ×2
Mitsubishi PKFY-P08NLMU-ER1.TH 8,000 BTU · Vrf Indoor ×2
Mitsubishi PKFY-P15NLMU-ER1.TH 15,000 BTU · Vrf Indoor ×2
Mitsubishi PVFY-P18NAMU-E1 18,000 BTU · Vrf Indoor ×2
Ventilation
Fantech FANTECH ATMO 150E 150 CFM · Erv ×2
1 project · most recent 12/02/2025
Gas Water/Sanitary
FiledStatusContractorScope
12/02/2025Permit IssuedCOBOT PLUMBING AND HEATINGas, Water/Sanitary
1 project · most recent 06/11/2025
General Wiring
FiledStatusContractorScope
06/11/2025CompleteKEPLER ELECTRICAL CONTGeneral Wiring
▾Field Inspections (DOB CAP) — 1
DateTypeResultReport
09/02/2025Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
▾Special Inspection Requirements (DOB NOW) — 3
DateRequirementInspectorRole
02/02/2026Fire-Resistant Penetrations and JointsJAMES NAPOLIspecial
10/24/2025Fire-Resistant Penetrations and JointsJAMES NAPOLIspecial
04/04/2025FinalBrynnemarie Lanciottiprogress
▾Documents — 68 on file (BIS + DOB NOW)
▸Plans & Drawings8
▸DOB NOWPlans/Sketch8
08/22/2026B01169074-P2Request digital key ↗
08/22/2026B01169074-P1Request digital key ↗
08/22/2026B01169074-P3Request digital key ↗
Showing 3 of 8 on file for this type
▸Applications & Permits13
▸DOB NOWLPC Approval/Permit8
08/13/2026B01205868-I1Open ↗
08/13/2026B01169074-P1Open ↗
08/13/2026B01169074-S1Open ↗
Showing 3 of 8 on file for this type
▸BISWORK PERMIT APPLICATION3
05/01/2017321446262Open ↗
02/14/2017321446262Open ↗
01/26/2017321446262Open ↗
▸BISPLAN - WORK & PERMITS - SUPPPORTING DOCUMENTATION1
09/21/2017321446262Open ↗
▸BISPLAN / WORK APPROVAL APPLICATION1
12/05/2016321446262Open ↗
▸Zoning, Tax Lot & Property Records1
▸DOB NOWHouse Number Verification: TOPO Stamp1
08/13/2026B01205972-I1Open ↗
▸Seals & Professional Certifications15
▸DOB NOWDPL-1: Design Professional Seal & Signature8
08/22/2026B01169074-S2Open ↗
08/22/2026B01169074-P1Open ↗
08/22/2026B01169074-P3Open ↗
Showing 3 of 8 on file for this type
▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION4
08/30/2017321446262Open ↗
01/23/2017321446262Open ↗
12/15/2016321446262Open ↗
Showing 3 of 4 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature2
08/27/2026B01169074-S1Open ↗
08/25/2026B01169074-P1Open ↗
▸DOB NOWProgress Inspector Seal & Signature1
08/23/2026B01205868-I1Open ↗
▸Trade Schedules & Equipment1
▸BISSCHEDULE B - PLUMBING/SPRINKLER/STANDPIPE1
12/05/2016321446262Open ↗
▸Safety & Tenant Protection2
▸BISTenant Protection Plan and Notes1
12/05/2016321446262Open ↗
▸DOB NOWStreet Tree Checklist1
08/13/2026B01205972-I1Open ↗
▸Environmental & Asbestos9
▸DOB NOWDEP ACP-5: Asbestos Assessment Report8
08/22/2026B01169074-P1Open ↗
08/22/2026B01169074-S2Open ↗
08/22/2026B01169074-P3Open ↗
Showing 3 of 8 on file for this type
▸BISASBESTOS: CERTIFICATION (DEP ACP5)1
12/05/2016321446262Open ↗
▸Energy Compliance4
▸BISTECHNICAL REPORT: ENERGY CODE PROGRESS INSPS3
08/30/2017321446262Open ↗
01/23/2017321446262Open ↗
12/05/2016321446262Open ↗
▸BISAS-BUILT ENERGY ANALYSIS1
08/30/2017321446262Open ↗
▸Approvals, Objections & Sign-offs4
▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST2
10/05/2017321446262Open ↗
08/30/2017321446262Open ↗
▸BISLANDMARKS APPROVAL1
12/15/2016321446262Open ↗
▸BISLETTERS - SUPPORTING DOCUMENTATION1
08/30/2017321446262Open ↗
▸Cost, Insurance & Ownership3
▸BISCOST AFFIDAVIT3
10/05/2017321446262Open ↗
08/30/2017321446262Open ↗
12/05/2016321446262Open ↗
▸Filing & Intake Forms3
▸BISBOROUGH INTAKE FORM2
10/05/2017321446262Open ↗
08/30/2017321446262Open ↗
▸BISEFILING COVER SHEET1
12/05/2016321446262Open ↗
▸Other Documents5
▸DOB NOWProof of Historic Building4
08/13/2026B01205868-I1Open ↗
08/13/2026B01169074-I1Open ↗
08/13/2026B01205972-I1Open ↗
Showing 3 of 4 on file for this type
▸DOB NOWProperty Ownership Certification1
08/13/2026B01205972-I1Open ↗