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Two family brick
18 DOUGLASS STREET
BROOKLYN · Carroll Gardens-Cobble Hill-Gowanus-Red Hook · BIN 3006647
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1920Year Built
3Stories
B1Building Class
R6BZoning
3,586 sfGross Floor Area
2Units
Rent Stabilized0 Open Violations
Two family brick · 2,500 sf lot · 1.43 FAR built · Flood zone X
Locations of Work
No floor-level scope or drawing coverage on file for this building.
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
BLACK SQUARE BUILDERS CORP2403/22/2026
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
03/23/2015$3.2M—Private party → Private party$885/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
CWB ARCHITECTS109/17/2020
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
BLACK SQUARE BUILDERS CORPGeneral Contractor1003/21/2026
Building Lifecycle
All (28)Filed (2)Permit Issued (5)Signed Off (2)Violation (19)
06/09/2025
Violation issued (HPD, closed)
A
11/29/2024
Violation issued (HPD, closed)
I
03/30/2023
Signed off — Alteration
B00400210-I1
03/30/2023
Signed off — Alteration
B00390487-I1
03/22/2023
Violation issued (HPD, closed)
A
02/24/2022
Violation issued (HPD, closed)
I
02/24/2022
Violation issued (HPD, closed)
A
01/05/2022
Permit issued — Construction Fence
B00400210-I1-FN
01/05/2022
Permit issued — Construction Fence
B00390487-I1-FN
09/10/2021
Violation issued (ECB, closed)
Construction
09/10/2021
Violation issued (ECB, closed)
Construction
09/10/2021
Violation issued (ECB, closed)
Site Safety
09/10/2021
Violation issued (ECB, closed)
Site Safety
09/10/2021
Violation issued (ECB, closed)
Construction
09/10/2021
Violation issued (ECB, closed)
Construction
09/10/2021
Violation issued (ECB, closed)
Construction
06/29/2021
Violation issued (ECB, closed)
Construction
06/29/2021
Violation issued (ECB, closed)
Construction
06/29/2021
Violation issued (ECB, closed)
Construction
06/15/2021
Permit issued — Construction Fence
B00400210-I1-FN
04/08/2021
Violation issued (HPD, closed)
A
01/04/2021
Permit issued — Construction Fence
B00400210-I1-FN
09/24/2020
Permit issued — Construction Fence
B00400210-I1-FN
09/17/2020
Filed — Alteration
B00400210-I1
08/27/2020
Filed — Alteration
B00390487-I1
11/21/2017
Violation issued (HPD, closed)
I
10/08/2015
Violation issued (HPD, closed)
I
02/18/2015
Violation issued (HPD, closed)
I
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWConstruction FenceSigned-offBLACK SQUARE BUILDERS COR01/05/2022
DOB NOWConstruction FenceSigned-offBLACK SQUARE BUILDERS COR01/05/2022
DOB NOWConstruction FenceSigned-offBLACK SQUARE BUILDERS COR06/15/2021
DOB NOWConstruction FenceSigned-offBLACK SQUARE BUILDERS COR01/04/2021
DOB NOWConstruction FenceSigned-offBLACK SQUARE BUILDERS COR09/24/2020
BISPLISSUEDTRI STATE PLBG & HTG INC12/28/2023
BISSPISSUEDRRP PLUMBING CORP12/09/2022
BISPLISSUEDTRI STATE PLBG & HTG INC08/18/2022
BIS—ISSUEDBLACK SQUARE BUILDERS CORP05/20/2022
BIS—ISSUEDBLACK SQUARE BUILDERS CORP01/13/2022
BISSPISSUEDRRP PLUMBING CORP02/03/2021
BISPLISSUEDTRI STATE PLBG & HTG INC01/26/2021
BIS—ISSUEDBLACK SQUARE BUILDERS CORP08/10/2020
1 project · most recent 05/18/2023
General Wiring
FiledStatusContractorScope
05/18/2023CompleteGLENDALE ELECTL CONTNG INGeneral Wiring
Nothing on file for this building.
▾Documents — 104 on file (BIS + DOB NOW)
▸Plans & Drawings2
▸DOB NOWPlans/Sketch - Construction Fence2
09/02/2026B00390487-I1Request digital key ↗
09/02/2026B00400210-I1Request digital key ↗
▸Applications & Permits30
▸BISPLAN / WORK APPROVAL APPLICATION23
07/11/2024321932968Open ↗
05/15/2024321932968Open ↗
02/21/2024321932968Open ↗
Showing 3 of 23 on file for this type
▸BISWORK PERMIT APPLICATION4
01/13/2022321932968Open ↗
02/03/2021321958164Open ↗
01/26/2021321932968Open ↗
Showing 3 of 4 on file for this type
▸BISPARTIAL DEMO: 10-DAY NOTICE (FOR AL/EW-OT PERMITS)1
08/10/2020321932968Open ↗
▸BISPARTIAL DEMO PLAN & DS1 (FOR AL/EW-OT PERMITS)1
08/10/2020321932968Open ↗
▸BISCERTIFICATE OF OCCUPANCY: APPLICATION1
04/24/2023321932968Open ↗
▸Zoning, Tax Lot & Property Records5
▸BISZONING DIAGRAM3
07/17/2019321932968Open ↗
06/06/2019321932968Open ↗
06/06/2019321932968Open ↗
▸BISVERIFY TAX LOT1
08/22/2024321932968Open ↗
▸BISCO OBJ: VERIFY ADDRESS-TOPO STAMP1
01/17/2024321932968Open ↗
▸Seals & Professional Certifications8
▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION3
05/31/2019321958164Open ↗
03/20/2019321932968Open ↗
03/20/2019321932968Open ↗
▸BISPROFESSIONAL CERTIFICATION STATEMENT2
05/31/2019321958164Open ↗
03/20/2019321932968Open ↗
▸BISPROFESSIONAL CERTIFIED CHECKLIST2
05/31/2019321958164Open ↗
03/20/2019321932968Open ↗
▸DOB NOWDPL-1: Design Professional Seal & Signature1
08/13/2026B00400210-I1Open ↗
▸Trade Schedules & Equipment14
▸BISSCHEDULE B - PLUMBING5
08/04/2023321932968Open ↗
08/03/2023321932968Open ↗
08/02/2023321932968Open ↗
Showing 3 of 5 on file for this type
▸BISSCHEDULE B - PLUMBING/SPRINKLER/STANDPIPE2
05/31/2019321958164Open ↗
03/20/2019321932968Open ↗
▸BISHVAC & SERVICE WATER HEATING EQUIPMENT1
02/09/2023321932968Open ↗
▸BISHVAC & SERVICE WATER HEATING SYSTEM CONTROLS1
02/09/2023321932968Open ↗
▸BISSPRINKLER SYSTEMS1
04/18/2023321958164Open ↗
▸BISSPRINKLER (SP) SIGNOFF1
05/02/2023321958164Open ↗
▸BISEQUIPMENT USE APPLICATION/PERMIT1
07/30/2024321932968Open ↗
▸BISHEATING SYSTEMS1
02/09/2023321932968Open ↗
▸BISEQUIPMENT USE PERMITS1
08/01/2024321932968Open ↗
▸Safety & Tenant Protection3
▸BISSTREET TREE CHECKLIST1
03/20/2019321932968Open ↗
▸BISTPP1: TENANT PROTECTION PLAN1
01/13/2022321932968Open ↗
▸BISTenant Protection Plan and Notes1
03/20/2019321932968Open ↗
▸Environmental & Asbestos1
▸BISASBESTOS: COMPLETION OR CLOSEOUT (ACP20/21/5)1
08/10/2020321932968Open ↗
▸Energy Compliance11
▸BISAIR SEALING AND INSULATION - VISUAL1
02/09/2023321932968Open ↗
▸BISINTERIOR LIGHTING POWER1
02/09/2023321932968Open ↗
▸BISFENESTRATION U-FACTOR & PRODUCT RATING1
02/09/2023321932968Open ↗
▸BISFENESTRATION AREAS1
02/09/2023321932968Open ↗
▸BISINSULATION PLACEMENT & R VALUES1
02/09/2023321932968Open ↗
▸BISENERGY CODE COMPLIANCE INSPECTIONS1
02/09/2023321932968Open ↗
▸BIS* HVAC INSULATION AND SEALING1
02/09/2023321932968Open ↗
▸BISAS-BUILT ENERGY ANALYSIS (EN2)1
02/09/2023321932968Open ↗
▸BISTECHNICAL REPORT: ENERGY CODE PROGRESS INSPS1
03/20/2019321932968Open ↗
▸BISELECTRICAL ENERGY CONSUMPTION1
02/09/2023321932968Open ↗
▸BISFENESTRATION AIR LEAKAGE1
02/09/2023321932968Open ↗
▸Inspections & Test Reports3
▸BISFIRE-RESISTANT PENETRATIONS AND JOINTS (FIRESTOP)1
02/09/2023321932968Open ↗
▸BISFIRE-RESISTIVE RATED CONSTRUCTION1
02/09/2023321932968Open ↗
▸BISMECHANICAL SYSTEMS1
02/09/2023321932968Open ↗
▸Approvals, Objections & Sign-offs4
▸BISSCHEDULE A - OCCUPANCY / USE2
03/20/2019321932968Open ↗
03/20/2019321932968Open ↗
▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST1
05/02/2023321958164Open ↗
▸BISFINAL1
04/18/2023321958164Open ↗
▸Cost, Insurance & Ownership4
▸BISCOST AFFIDAVIT2
05/31/2019321958164Open ↗
03/20/2019321932968Open ↗
▸BISCOST AFFIDAVIT (FINAL): PW32
04/20/2023321932968Open ↗
04/18/2023321958164Open ↗
▸Filing & Intake Forms15
▸BISADDITIONAL INFORMATION12
08/22/2024321932968Open ↗
02/21/2024321932968Open ↗
08/08/2023321932968Open ↗
Showing 3 of 12 on file for this type
▸BISEFILING COVER SHEET3
05/31/2019321958164Open ↗
03/20/2019321932968Open ↗
03/20/2019321932968Open ↗
▸Other Documents4
▸BISMAINTENANCE INFORMATION1
02/09/2023321932968Open ↗
▸BISPERMANENT CERTIFICATE1
02/09/2023321932968Open ↗
▸BISPLOT DIAGRAM1
03/20/2019321932968Open ↗
▸BISCHIMNEYS AND VENTS1
02/09/2023321932968Open ↗