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Two family frame
1833 EAST 21ST STREET
BROOKLYN · Madison · BIN 3183271
💬 Discuss this project
1920Year Built
2.75Stories
B2Building Class
R3-2Zoning
3,010 sfGross Floor Area
2Units
3 Active Violations ▸FDNY Report ↗
Two family frame · 4,000 sf lot · 0.75 FAR built · Flood zone X
Locations of Work
ArchitectureStructuralMechanicalPlumbingCivilGeneralOther
Names shown beside floors are taken automatically from the text of filed documents and may be incomplete or wrong.
Permit Issued — active, not yet Signed-off
RoofMasonry and reinforcing steel specificationsUnder Construction18p · 2 filings · 20 docs
AtticUnder Construction38p · 1 filing · 20 docs
Floor 2Masonry and reinforcing steel specificationsUnder Construction49p · 3 filings · 20 docs
Floor 1Under Construction48p · 2 filings · 20 docs
CellarMasonry and reinforcing steel specificationsUnder Construction50p · 3 filings · 20 docs
Site & exteriorConstruction fence installation3p · 1 filing · 4 docs
Filed — no permit issuedBackfill for site stabilization17p · 2 filings · 10 docs
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
11/16/2023$1.6M—Private party → Private party$548/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
MSM Engineering Services801/08/2026
York Tower Consulting Engineering206/05/2025
Demerara Engineering106/17/2024
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
Mister Expediter1003/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
RHY ConstructionGeneral Contractor907/08/2026
RHY ConstructionScaffold704/09/2026
Water Works PipingPlumbing209/07/2026
RRP PlumbingPlumbing107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
MSM Engineering Services8449601/08/2026
AA Building & Inspection1519106/05/2025
Shahrish Shuvo Engineering8524110/24/2024
Demerara Engineering, PLL4248106/17/2024
Building Lifecycle
All (122)Filed (11)Permit Issued (11)Violation (8)Inspection (4)Objection (58)Special Inspection (30)
09/02/2026
Inspection — Certified Storm Drainage-ST-Piping-Underground
Certified
View inspection ↗
09/02/2026
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Underground
Certified
View inspection ↗
08/31/2026
Permit issued — Plumbing
B68209689-S1-PL
08/18/2026
Permit issued — Plumbing
B68209689-S1-PL
07/31/2026
Inspection — Pass-Final PL - Up to 9 Requested Floors
Pass
View inspection ↗
07/27/2026
Inspection — Pass-Final PL - Up to 9 Requested Floors
Pass
View inspection ↗
05/14/2026
Permit issued — Plumbing
B01119368-S1-PL
01/17/2026
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
01/08/2026
Filed — New Building
NEW LIGHT FRAME SINGLE FAMILY DEWLING
B01119368-S1
01/08/2026
Special inspection requirement — Permanent certificate
MOHAMED MAHMOUD
01/08/2026
Special inspection requirement — Energy Code Compliance Inspections
MOHAMED MAHMOUD
01/08/2026
Special inspection requirement — Maintenance information
MOHAMED MAHMOUD
01/08/2026
Special inspection requirement — HVAC-R and service water heating system controls
MOHAMED MAHMOUD
01/08/2026
Special inspection requirement — HVAC-R and service water heating equipment
MOHAMED MAHMOUD
01/08/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
MOHAMED MAHMOUD
01/08/2026
Special inspection requirement — HVAC-R and service water piping design and insulation
MOHAMED MAHMOUD
01/02/2026
Permit issued — Construction Fence
B00999880-I1-FN
12/22/2025
Filed — Alteration
FILING FOR PROPOSE FENCE APPLICATION.
B00999880-P1
12/12/2025
Permit issued — Structural
B01119368-S3-ST
12/10/2025
Permit issued — General Construction
B01119368-I1-GC
12/02/2025
Permit issued — Foundation
B01119368-S4-FO
10/28/2025
Objection resolved — Addressed
10/22/2025
Special inspection requirement — Protection of exposed foundation insulation
MOHAMED MAHMOUD
10/22/2025
Special inspection requirement — Energy Code Compliance Inspections
MOHAMED MAHMOUD
10/22/2025
Special inspection requirement — Fire-Resistance Rated Construction
MOHAMED MAHMOUD
10/22/2025
Special inspection requirement — Concrete - Cast-In-Place
MOHAMED MAHMOUD
10/22/2025
Special inspection requirement — Metering
MOHAMED MAHMOUD
10/22/2025
Special inspection requirement — Permanent certificate
MOHAMED MAHMOUD
10/22/2025
Special inspection requirement — Fenestration and door U-factor and product ratings
MOHAMED MAHMOUD
10/22/2025
Special inspection requirement — Structural Stability – Alterations of existing buildings
MOHAMED MAHMOUD
10/22/2025
Special inspection requirement — Excavations - Sheeting, Shoring, and Bracing
MOHAMED MAHMOUD
10/22/2025
Special inspection requirement — Underpinning
Shahrish Shuvo
10/22/2025
Special inspection requirement — Electric vehicle service equipment requirements
MOHAMED MAHMOUD
10/22/2025
Special inspection requirement — Insulation placement and R values
MOHAMED MAHMOUD
10/22/2025
Special inspection requirement — Fenestration air leakage
MOHAMED MAHMOUD
10/22/2025
Special inspection requirement — Air barrier — testing
MOHAMED MAHMOUD
10/22/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
MOHAMED MAHMOUD
10/22/2025
Special inspection requirement — Interior lighting power
MOHAMED MAHMOUD
10/22/2025
Special inspection requirement — Fenestration areas
MOHAMED MAHMOUD
10/22/2025
Special inspection requirement — Air barrier - visual inspection
MOHAMED MAHMOUD
10/21/2025
Objection resolved — Addressed
09/09/2025
Objection raised — Zoning
08/28/2025
Objection resolved — Addressed
08/20/2025
Filed — New Building
NEW LIGHT FRAME SINGLE FAMILY DEWLING
B01119368-P1
08/19/2025
Special inspection requirement — Structural Stability – Alterations of existing buildings
MOHAMED MAHMOUD
08/15/2025
Special inspection requirement — Metering
08/15/2025
Special inspection requirement — Air barrier - visual inspection
08/15/2025
Special inspection requirement — Fire-Resistance Rated Construction
MOHAMED MAHMOUD
08/15/2025
Special inspection requirement — Fenestration and door U-factor and product ratings
07/31/2025
Objection resolved — Addressed
07/31/2025
Objection resolved — Addressed
07/09/2025
Objection resolved — Addressed
06/26/2025
Objection resolved — Addressed
06/17/2025
Objection resolved — Addressed
06/17/2025
Objection resolved — Addressed
06/10/2025
Objection raised — Inspections
06/10/2025
Objection raised — Structural
06/10/2025
Objection raised — Scope
06/10/2025
Objection raised — Admin
06/10/2025
Objection raised — Other
Latest 60 of 122 events.
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWPlumbingSigned-offWater Works Piping08/31/2026
DOB NOWPlumbingSigned-offWater Works Piping08/18/2026
DOB NOWPlumbingPermit IssuedRRP Plumbing05/14/2026
DOB NOWConstruction FencePermit IssuedRHY Construction01/02/2026
DOB NOWStructuralPermit IssuedRHY Construction12/12/2025
DOB NOWGeneral ConstructionPermit IssuedRHY Construction12/10/2025
DOB NOWFoundationPermit IssuedRHY Construction12/02/2025
DOB NOWGeneral ConstructionPermit IssuedRHY Construction06/20/2024
DOB NOWConstruction FencePermit IssuedRHY Construction06/20/2024
DOB NOWGeneral ConstructionPermit IssuedRHY Construction04/01/2024
DOB NOWConstruction FencePermit IssuedRHY Construction02/08/2024
1 project · most recent 01/08/2026
Water/Sanitary
FiledStatusContractorScope
01/08/2026Permit IssuedRRP PlumbingWater/Sanitary
2 projects · most recent 03/30/2026
General Wiring
FiledStatusContractorScope
03/30/2026Permit IssuedFabco Electrical ContGeneral Wiring
03/08/2024Permit IssuedCL Electrical—
1 project · most recent 01/08/2026
Steel
FiledStatusContractorScope
01/08/2026Permit IssuedRRP PlumbingSteel
1 project · most recent 12/22/2025
Fence
FiledStatusContractorScope
12/22/2025Permit IssuedRHY ConstructionFence
▾Field Inspections (DOB CAP) — 4
DateTypeResultReport
09/02/2026Certified Storm Drainage-ST-Piping-UndergroundCertifiedView ↗
09/02/2026Certified Water and Sanitary-WS-Sanitary Piping-UndergroundCertifiedView ↗
07/31/2026Pass-Final PL - Up to 9 Requested FloorsPassView ↗
07/27/2026Pass-Final PL - Up to 9 Requested FloorsPassView ↗
▾Special Inspection Requirements (DOB NOW) — 63
DateRequirementInspectorRole
01/08/2026Permanent certificateMOHAMED MAHMOUDenergy_progress
01/08/2026HVAC-R and service water heating equipmentMOHAMED MAHMOUDenergy_progress
01/08/2026HVAC-R and service water heating system controlsMOHAMED MAHMOUDenergy_progress
01/08/2026HVAC-R and service water piping design and insulationMOHAMED MAHMOUDenergy_progress
01/08/2026Maintenance informationMOHAMED MAHMOUDenergy_progress
01/08/2026Energy Code Compliance InspectionsMOHAMED MAHMOUDprogress
01/08/2026Fire-Resistant Penetrations and JointsMOHAMED MAHMOUDspecial
10/22/2025Electric vehicle service equipment requirementsMOHAMED MAHMOUDenergy_progress
10/22/2025Insulation placement and R valuesMOHAMED MAHMOUDenergy_progress
10/22/2025Fenestration areasMOHAMED MAHMOUDenergy_progress
10/22/2025MeteringMOHAMED MAHMOUDenergy_progress
10/22/2025Permanent certificateMOHAMED MAHMOUDenergy_progress
10/22/2025Protection of exposed foundation insulationMOHAMED MAHMOUDenergy_progress
10/22/2025Fenestration and door U-factor and product ratingsMOHAMED MAHMOUDenergy_progress
10/22/2025Air barrier — testing MOHAMED MAHMOUDenergy_progress
10/22/2025Fenestration air leakageMOHAMED MAHMOUDenergy_progress
10/22/2025Interior lighting powerMOHAMED MAHMOUDenergy_progress
10/22/2025Air barrier - visual inspectionMOHAMED MAHMOUDenergy_progress
10/22/2025UnderpinningShahrish Shuvospecial
10/22/2025Excavations - Sheeting, Shoring, and BracingMOHAMED MAHMOUDspecial
10/22/2025Structural Stability – Alterations of existing buildingsMOHAMED MAHMOUDspecial
10/22/2025Concrete - Cast-In-PlaceMOHAMED MAHMOUDspecial
10/22/2025Fire-Resistant Penetrations and JointsMOHAMED MAHMOUDspecial
10/22/2025Fire-Resistance Rated ConstructionMOHAMED MAHMOUDprogress
10/22/2025Energy Code Compliance InspectionsMOHAMED MAHMOUDprogress
Latest 25 of 63.
▾Documents — 83 on file (BIS + DOB NOW)
▸Plans & Drawings11
▸DOB NOWPlans/Sketch11
08/25/2026B01025269-I1Request digital key ↗
08/24/2026B01057278-I1Request digital key ↗
08/24/2026B01057170-I1Request digital key ↗
Showing 3 of 11 on file for this type
▸Zoning, Tax Lot & Property Records8
▸DOB NOWHouse Number Verification: TOPO Stamp3
08/13/2026B01057278-I1Open ↗
08/13/2026B01119368-I1Open ↗
08/13/2026B01119368-P1Open ↗
▸DOB NOWZD1: DOB Zoning Diagram3
08/13/2026B01119368-I1Open ↗
08/13/2026B01119368-P1Open ↗
08/13/2026B01057278-I1Open ↗
▸DOB NOWZoning Exhibit form (1-5)2
08/13/2026B01119368-I1Open ↗
08/13/2026B01119368-P1Open ↗
▸Seals & Professional Certifications36
▸DOB NOWSpecial Inspector Seal & Signature16
08/27/2026B01119368-I1Open ↗
08/27/2026B01119368-I1Open ↗
08/25/2026B01119368-S3Open ↗
Showing 3 of 16 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature11
08/25/2026B01025269-I1Open ↗
08/24/2026B01057278-I1Open ↗
08/24/2026B01067042-I1Open ↗
Showing 3 of 11 on file for this type
▸DOB NOWProgress Inspector Seal & Signature9
08/27/2026B01119368-I1Open ↗
08/27/2026B01119368-I1Open ↗
08/27/2026B01119368-I1Open ↗
Showing 3 of 9 on file for this type
▸Trade Schedules & Equipment2
▸DOB NOWDEP: Sewer Certification (Sanitary/Storm)2
08/13/2026B01119368-P1Open ↗
08/13/2026B01119368-I1Open ↗
▸Safety & Tenant Protection5
▸DOB NOWParks Department Acknowledgment Letter for Street Trees Plan2
08/13/2026B01057278-I1Open ↗
08/13/2026B01119368-I1Open ↗
▸DOB NOWStreet Tree Checklist2
08/15/2026B01119368-I1Open ↗
08/14/2026B01119368-P1Open ↗
▸DOB NOWStreet Trees Site Plan1
08/13/2026B01119368-I1Open ↗
▸Environmental & Asbestos2
▸DOB NOWDEP ACP-5: Asbestos Assessment Report2
08/25/2026B01025269-I1Open ↗
08/24/2026B01057278-I1Open ↗
▸Inspections & Test Reports7
▸DOB NOWGeotechnical Report (BC 1803.6)2
08/13/2026B01119368-S4Open ↗
08/13/2026B01067042-I1Open ↗
▸DOB NOWTR4 Test Report and Plot Diagram2
08/13/2026B01067042-I1Open ↗
08/13/2026B01119368-S4Open ↗
▸DOB NOWSOIL REPORT2
08/13/2026B01067042-I1Open ↗
08/13/2026B01119368-S4Open ↗
▸DOB NOWLegalization Inspection Report1
08/13/2026B01057170-I1Open ↗
▸Other Documents12
▸DOB NOWProperty Ownership Certification4
08/24/2026B01057278-I1Open ↗
08/15/2026B01119368-I1Open ↗
08/14/2026B01119368-P1Open ↗
Showing 3 of 4 on file for this type
▸DOB NOWLocal Law 92/94 of 2019 Sustainable Roof Zone4
08/13/2026B01057278-I1Open ↗
08/13/2026B01119368-P1Open ↗
08/13/2026B01025269-I1Open ↗
Showing 3 of 4 on file for this type
▸DOB NOWSite Survey: Initial3
08/13/2026B01057278-I1Open ↗
08/13/2026B01119368-I1Open ↗
08/13/2026B01119368-P1Open ↗
▸DOB NOWStructure Photographs1
08/13/2026B01057170-I1Open ↗