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Three families
177 EAST 31 STREET
BROOKLYN · East Flatbush-Erasmus · BIN 3110473
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1910Year Built
2Stories
C0Building Class
R6Zoning
2,080 sfGross Floor Area
3Units
FDNY Report ↗
Three families · 1,967 sf lot · 1.06 FAR built · Flood zone X
Locations of Work
ArchitecturePlumbing
Permit Issued — active, not yet Signed-off
Floor 2Under Construction4p · 1 filing · 17 docs
Floor 1Under Construction4p · 1 filing · 17 docs
Sub-BasementUnder Construction4p · 1 filing · 17 docs
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
05/30/2025$1.0M—Private party → Private party$495/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
BITOPI CONSULTANTS LLC110/29/2025
IKRA CONSULTING LLC109/23/2025
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
KNIGHTVISION8555403/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
MS PAUL CORPGeneral Contractor104/09/2026
BT'S PLUMBING AND HEATINGPlumbing107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
BITOPI CONSULTANTS LLC7036210/29/2025
Building Lifecycle
All (21)Filed (2)Permit Issued (2)Objection (6)Special Inspection (11)
01/02/2026
Permit issued — Plumbing
B01290870-S1-PL
12/03/2025
Objection resolved — Addressed
12/03/2025
Objection resolved — Addressed
12/03/2025
Objection resolved — Addressed
12/02/2025
Permit issued — General Construction
B01290870-I1-GC-CX
11/17/2025
Objection raised — Mechanical
11/17/2025
Objection raised — Plumbing
11/17/2025
Objection raised — Cost
10/29/2025
Filed — Alteration
FILING HEREWITH PLANS FOR THE INSTALLATION OF NEW PLUMBING FIXTURES ON FIRST FLOOR AND BASEMENT. CAP & REMOVE SINK ON BASEMENT LEVEL. REMOVAL OF COOKING EQUIPMENT AND BOILER & HOT WATER TANK AT BASEMENT LEVEL.
B01290870-S1
09/23/2025
Filed — Alteration
FILING HEREWITH PLANS FOR THE INSTALLATION OF NEW PLUMBING FIXTURES ON FIRST FLOOR AND BASEMENT. CAP & REMOVE SINK ON BASEMENT LEVEL. REMOVAL OF COOKING EQUIPMENT AND BOILER & HOT WATER TANK AT BASEMENT LEVEL.
B01290870-I1
09/21/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
KAMRUL AHSAN
09/21/2025
Special inspection requirement — Mechanical Systems
KAMRUL AHSAN
09/21/2025
Special inspection requirement — Energy Code Compliance Inspections
KAMRUL AHSAN
09/21/2025
Special inspection requirement — Final
KAMRUL AHSAN
09/21/2025
Special inspection requirement — Fenestration air leakage
KAMRUL AHSAN
09/21/2025
Special inspection requirement — Fenestration and door U-factor and product ratings
KAMRUL AHSAN
09/21/2025
Special inspection requirement — Fenestration areas
KAMRUL AHSAN
09/21/2025
Special inspection requirement — HVAC-R and service water heating system controls
KAMRUL AHSAN
09/21/2025
Special inspection requirement — HVAC-R and service water heating equipment
KAMRUL AHSAN
09/21/2025
Special inspection requirement — Insulation placement and R values
KAMRUL AHSAN
09/21/2025
Special inspection requirement — Lighting in dwelling units
KAMRUL AHSAN
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWPlumbingPermit IssuedBT'S PLUMBING AND HEATING01/02/2026
DOB NOWGeneral ConstructionPermit IssuedMS PAUL CORP12/02/2025
1 project · most recent 10/29/2025
Heating and Air Conditioning Systems
FiledStatusContractorScopeMake / Model / Capacity
10/29/2025Permit IssuedMS PAUL CORPHeating and Air Conditioning Systems
Heat / Cool
Mitsubishi Electric MSZ-4C36NA3 36,000 BTU · Split System ×3
1 project · most recent 10/29/2025
Gas Water/Sanitary
FiledStatusContractorScope
10/29/2025Permit IssuedBT'S PLUMBING AND HEATINGGas, Water/Sanitary
1 project · most recent 12/15/2025
General Wiring
FiledStatusContractorScope
12/15/2025Permit IssuedOGC ELECTRICAL CONTRACTORGeneral Wiring
▾Special Inspection Requirements (DOB NOW) — 11
DateRequirementInspectorRole
09/21/2025Fire-Resistant Penetrations and JointsKAMRUL AHSANspecial
09/21/2025Mechanical SystemsKAMRUL AHSANspecial
09/21/2025Energy Code Compliance InspectionsKAMRUL AHSANprogress
09/21/2025FinalKAMRUL AHSANprogress
09/21/2025Fenestration air leakageKAMRUL AHSANenergy_progress
09/21/2025Fenestration and door U-factor and product ratingsKAMRUL AHSANenergy_progress
09/21/2025Fenestration areasKAMRUL AHSANenergy_progress
09/21/2025HVAC-R and service water heating system controlsKAMRUL AHSANenergy_progress
09/21/2025HVAC-R and service water heating equipmentKAMRUL AHSANenergy_progress
09/21/2025Insulation placement and R valuesKAMRUL AHSANenergy_progress
09/21/2025Lighting in dwelling unitsKAMRUL AHSANenergy_progress
▾Documents — 17 on file (BIS + DOB NOW)
▸Plans & Drawings2
▸DOB NOWPlans/Sketch2
08/20/2026B01290870-S1Request digital key ↗
08/20/2026B01290870-I1Request digital key ↗
▸Seals & Professional Certifications13
▸DOB NOWProgress Inspector Seal & Signature9
09/04/2026B01290870-I1Open ↗
09/04/2026B01290870-I1Open ↗
09/04/2026B01290870-I1Open ↗
Showing 3 of 9 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature2
08/13/2026B01290870-I1Open ↗
08/13/2026B01290870-S1Open ↗
▸DOB NOWSpecial Inspector Seal & Signature2
09/04/2026B01290870-I1Open ↗
09/04/2026B01290870-I1Open ↗
▸Environmental & Asbestos2
▸DOB NOWDEP ACP-5: Asbestos Assessment Report2
08/13/2026B01290870-I1Open ↗
08/13/2026B01290870-S1Open ↗