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BuildNYC
One family attached or semi-detached
541 EAST 42ND STREET
BROOKLYN · BIN 3112014
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1940Year Built
1Stories
A5Building Class
R4Zoning
861 sfGross Floor Area
1Units
1 Active Violation 0 unresolved · 1 paperwork only ▸FDNY Report ↗
One family attached or semi-detached · 2,150 sf lot · 0.4 FAR built · Flood zone X
Locations of Work
ArchitecturePlumbingGeneral
Names shown beside floors are taken automatically from the text of filed documents and may be incomplete or wrong.
RoofRooftop solar installation1 filing · 8 docs
Floor 12p · 3 filings · 6 docs
Sub-Basement2p · 2 filings · 6 docs
Filed — no permit issuedProposed conversion of garage5p · 1 filing · 2 docs
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
10/28/2022$495K—Private party → Private party$575/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
Tom Petersen Architect111/26/2024
Claude Hurt Jr. Architect204/19/2024
NS Engineers212/20/2022
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
Gavin Squires303/21/2026
Kamtech Restoration203/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
Rka Piping and HeatingPlumbing107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
Thomas Petersen Architect7854111/26/2024
Nothing on file for this building.
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWPlumbingPermit IssuedRka Piping and Heating01/03/2023
1 project · most recent 12/20/2022
Gas Water/Sanitary
FiledStatusContractorScope
12/20/2022Permit IssuedRka Piping and HeatingGas, Water/Sanitary
1 project · most recent 11/01/2024
FiledStatusContractorScope
11/01/2024Permit IssuedBerger Quality Electrical Con—
1 project · most recent 11/26/2024
FiledStatusContractorScope
11/26/2024——12 panels, 5.52 kw, 702.47 roof_area_sqft
▾Field Inspections (DOB CAP) — 1
DateTypeResultReport
03/10/2023Pass-Final PL - Up to 3 Requested FloorsPassView ↗
▾Special Inspection Requirements (DOB NOW) — 10
DateRequirementInspectorRole
01/24/2025Fire-Resistant Penetrations and Joints—special
01/24/2025Energy Code Compliance Inspections—progress
01/24/2025Fire-Resistance Rated Construction—progress
11/26/2024Energy Code Compliance InspectionsTOM PETERSENprogress
11/26/2024FinalTOM PETERSENprogress
11/26/2024Air barrier - visual inspectionTOM PETERSENenergy_progress
11/26/2024Fire-Resistant Penetrations and JointsTOM PETERSENspecial
11/26/2024Structural Stability – Alterations of existing buildingsTOM PETERSENspecial
12/07/2022Energy Code Compliance InspectionsShamsul Siddiqueprogress
11/01/2022Fire-Resistant Penetrations and Joints—special
▾Documents — 16 on file (BIS + DOB NOW)
▸Plans & Drawings4
▸DOB NOWPlans/Sketch4
08/28/2026B08051517-I1Request digital key ↗
08/25/2026B01031793-I1Request digital key ↗
08/15/2026B01147920-I1Request digital key ↗
Showing 3 of 4 on file for this type
▸Seals & Professional Certifications10
▸DOB NOWDPL-1: Design Professional Seal & Signature4
08/26/2026B08032066-I1Open ↗
08/13/2026B01147920-I1Open ↗
08/13/2026B08051517-I1Open ↗
Showing 3 of 4 on file for this type
▸DOB NOWProgress Inspector Seal & Signature4
09/23/2026B01147920-I1Open ↗
09/23/2026B01147920-I1Open ↗
08/29/2026B08051517-I1Open ↗
Showing 3 of 4 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature2
09/23/2026B01147920-I1Open ↗
09/23/2026B01147920-I1Open ↗
▸Environmental & Asbestos2
▸DOB NOWDEP ACP-5: Asbestos Assessment Report2
08/13/2026B01147920-I1Open ↗
08/13/2026B08051517-I1Open ↗