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One family attached or semi-detached
20 POLHEMUS PLACE
BROOKLYN · BIN 3024875
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1895Year Built
3Stories
A5Building Class
R6BZoning
3,080 sfGross Floor Area
1Units
One family attached or semi-detached · 1,728 sf lot · 1.78 FAR built · Flood zone X
Locations of Work
ArchitectureFire Protection
Floor 33p · 2 filings · 20 docs
Floor 24p · 1 filing · 15 docs
Floor 12p · 1 filing · 15 docs
Cellar2p · 1 filing · 15 docs
Basement2p · 1 filing · 15 docs
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
06/01/2021$3.8M—Private party → Private party$1,218/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
FERGUSON & SHAMAMIAN ARCHITECTS808/24/2022
CES ENGINEERING LLC204/04/2022
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
J CALLAHAN CONSULTING2003/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
PETER DI NATALE & ASSOC IGeneral Contractor203/21/2026
HYDRO MECHANICAL INCPlumbing207/08/2026
MARK FERGUSONElectrical103/21/2026
HYDRO MECHANICAL INCFire Protection107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
CES ENGINEERING LLC1277404/04/2022
Building Lifecycle
All (30)Filed (10)Permit Issued (4)Signed Off (2)Inspection (10)Special Inspection (4)
11/15/2022
Signed off — Alteration
Herewith filing for removal, relocation and installation of fixtures, as per plans submitted.
B00540274-I1
08/24/2022
Filed — Alteration
Herewith filing for removal, relocation and installation of fixtures, as per plans submitted.
B00540274-P5
08/05/2022
Filed — Alteration
Herewith filing for removal, relocation and installation of fixtures, as per plans submitted.
B00540274-P4
07/01/2022
Inspection — Pass-Final CND-Occupancy Inspection
Pass
View inspection ↗
06/30/2022
Signed off — Alteration
Installation of sprinklers throughout single family
B00540763-I1
06/02/2022
Inspection — Pass-Final PL - Up to 3 Requested Floors
Pass
View inspection ↗
05/26/2022
Filed — Alteration
Herewith filing for removal, relocation and installation of fixtures, as per plans submitted.
B00540274-P3
05/18/2022
Inspection — Certified Sprinkler-SP-Fixtures-Finish
Certified
View inspection ↗
04/04/2022
Filed — Alteration
Installation of sprinklers throughout single family
B00540763-P1
04/04/2022
Special inspection requirement — Sprinkler Systems
Delbert Smith
04/04/2022
Special inspection requirement — Fire-Resistant Penetrations and Joints
Delbert Smith
03/24/2022
Special inspection requirement — Fire-Resistant Penetrations and Joints
Delbert Smith
03/22/2022
Filed — Alteration CO
Herewith filing for the conversion of an existing two (2) family to a single family home. Work to include general construction, as per plans submitted. A new certificate of occupancy to be obtained.
B00539740-P1
03/22/2022
Filed — Alteration
Herewith filing for removal, relocation and installation of fixtures, as per plans submitted.
B00540274-P2
03/11/2022
Special inspection requirement — Fire-Resistant Penetrations and Joints
Delbert Smith
01/28/2022
Inspection — Certified Sprinkler-SP-Piping Dry/Wet-Hydrostatic Test
Certified
View inspection ↗
01/28/2022
Inspection — Certified Sprinkler - SP - Roughing
Certified
View inspection ↗
01/21/2022
Permit issued — Sprinklers
B00540763-I1-EW-SP
01/20/2022
Permit issued — Plumbing
B00540274-I1-PL
11/19/2021
Inspection — Pass-Final PL - Up to 3 Requested Floors
Pass
View inspection ↗
11/05/2021
Inspection — Pass-Final PL - Up to 3 Requested Floors
Pass
View inspection ↗
11/02/2021
Inspection — Certified Remove/Cap - work done in accordance with code
Certified
View inspection ↗
10/26/2021
Filed — Alteration
Herewith filing for removal, relocation and installation of fixtures, as per plans submitted.
B00540274-P1
09/10/2021
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Roughing
Certified
View inspection ↗
09/10/2021
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Underground
Certified
View inspection ↗
09/01/2021
Permit issued — General Construction
B00539740-I1-GC
08/30/2021
Permit issued — Plumbing
B00540274-I1-PL
07/20/2021
Filed — Alteration CO
Herewith filing for the conversion of an existing two (2) family to a single family home. Work to include general construction, as per plans submitted. A new certificate of occupancy to be obtained.
B00539740-I1
06/30/2021
Filed — Alteration
Herewith filing for removal, relocation and installation of fixtures, as per plans submitted.
B00540274-I1
06/24/2021
Filed — Alteration
Installation of sprinklers throughout single family
B00540763-I1
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWSprinklersSigned-offHYDRO MECHANICAL INC01/21/2022
DOB NOWPlumbingSigned-offHYDRO MECHANICAL INC01/20/2022
DOB NOWGeneral ConstructionPermit IssuedPETER DI NATALE & ASSOC I09/01/2021
DOB NOWPlumbingSigned-offHYDRO MECHANICAL INC08/30/2021
BISEQISSUEDRENNON CONSTRUCTION CORP08/07/2017
1 project · most recent 09/24/2021
General Wiring
FiledStatusContractorScope
09/24/2021CompleteJSP ELECTL CNTNG CORPGeneral Wiring
▾Field Inspections (DOB CAP) — 10
DateTypeResultReport
07/01/2022Pass-Final CND-Occupancy InspectionPassView ↗
06/02/2022Pass-Final PL - Up to 3 Requested FloorsPassView ↗
05/18/2022Certified Sprinkler-SP-Fixtures-FinishCertifiedView ↗
01/28/2022Certified Sprinkler-SP-Piping Dry/Wet-Hydrostatic TestCertifiedView ↗
01/28/2022Certified Sprinkler - SP - RoughingCertifiedView ↗
11/19/2021Pass-Final PL - Up to 3 Requested FloorsPassView ↗
11/05/2021Pass-Final PL - Up to 3 Requested FloorsPassView ↗
11/02/2021Certified Remove/Cap - work done in accordance with codeCertifiedView ↗
09/10/2021Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
09/10/2021Certified Water and Sanitary-WS-Sanitary Piping-UndergroundCertifiedView ↗
▾Special Inspection Requirements (DOB NOW) — 4
DateRequirementInspectorRole
04/04/2022Sprinkler SystemsDelbert Smithspecial
04/04/2022Fire-Resistant Penetrations and JointsDelbert Smithspecial
03/24/2022Fire-Resistant Penetrations and JointsDelbert Smithspecial
03/11/2022Fire-Resistant Penetrations and JointsDelbert Smithspecial
▾Documents — 60 on file (BIS + DOB NOW)
▸Plans & Drawings10
▸DOB NOWPlans/Sketch10
09/01/2026B00540763-I1Request digital key ↗
09/01/2026B00540763-P1Request digital key ↗
09/01/2026B00540274-P4Request digital key ↗
Showing 3 of 10 on file for this type
▸Applications & Permits11
▸DOB NOWLPC Approval/Permit8
09/01/2026B00540274-P4Open ↗
09/01/2026B00540274-P2Open ↗
09/01/2026B00540274-P1Open ↗
Showing 3 of 8 on file for this type
▸BISPLAN / WORK APPROVAL APPLICATION1
08/08/2017321634488Open ↗
▸BISWORK PERMIT APPLICATION1
08/08/2017321634488Open ↗
▸BISNon-Directive 14 Construction Sign Off Including Sign Applications1
03/23/2021321634488Open ↗
▸Zoning, Tax Lot & Property Records1
▸DOB NOWHouse Number Verification: TOPO Stamp1
08/13/2026B00539740-I1Open ↗
▸Seals & Professional Certifications17
▸DOB NOWDPL-1: Design Professional Seal & Signature10
09/01/2026B00540763-I1Open ↗
09/01/2026B00540763-P1Open ↗
09/01/2026B00540274-P2Open ↗
Showing 3 of 10 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature4
09/02/2026B00540763-I1Open ↗
09/02/2026B00540763-I1Open ↗
08/29/2026B00539740-P1Open ↗
Showing 3 of 4 on file for this type
▸BISPROFESSIONAL CERTIFICATION STATEMENT1
08/08/2017321634488Open ↗
▸BISPROFESSIONAL CERTIFIED CHECKLIST1
08/08/2017321634488Open ↗
▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION1
08/08/2017321634488Open ↗
▸Safety & Tenant Protection4
▸DOB NOWStreet Tree Checklist2
08/13/2026B00539740-P1Open ↗
08/13/2026B00539740-I1Open ↗
▸BISTenant Protection Plan and Notes1
08/08/2017321634488Open ↗
▸DOB NOWParks Department Acknowledgment Letter for Street Trees Plan1
08/13/2026B00539740-I1Open ↗
▸Environmental & Asbestos11
▸DOB NOWDEP ACP-5: Asbestos Assessment Report10
09/01/2026B00540763-P1Open ↗
09/01/2026B00540763-I1Open ↗
09/01/2026B00540274-P3Open ↗
Showing 3 of 10 on file for this type
▸BISASBESTOS: CERTIFICATION (DEP ACP5)1
08/08/2017321634488Open ↗
▸Inspections & Test Reports2
▸BISTECHNICAL REPORT: RESPONSIBILITY2
03/23/2021321634488Open ↗
03/23/2021321634488Open ↗
▸Approvals, Objections & Sign-offs1
▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST1
03/23/2021321634488Open ↗
▸Filing & Intake Forms2
▸BISADDITIONAL INFORMATION1
08/08/2017321634488Open ↗
▸BISEFILING COVER SHEET1
08/10/2017321634488Open ↗
▸Other Documents1
▸DOB NOWFinal Survey1
08/13/2026B00539740-I1Open ↗