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Two family frame
312 21 STREET
BROOKLYN · BIN 3017555
💬 Discuss this project
1940Year Built
2Stories
B2Building Class
R6BZoning
2,040 sfGross Floor Area
2Units
FDNY Report ↗
Two family frame · 1,786 sf lot · 1.14 FAR built · Flood zone X
Locations of Work
ArchitectureStructuralPlumbingFire Protection
Permit Issued — active, not yet Signed-off
Floor 2Under Construction11p · 1 filing · 20 docs
Floor 1Under Construction16p · 1 filing · 20 docs
BasementUnder Construction20p · 1 filing · 20 docs
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
BNYDC909/21/2026
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
JENNIFER CRAMM ARCHITECT PLLC606/16/2026
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
ANZALONE ARCHITECTURE603/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
NO LIMIT CONTRACTING INCGeneral Contractor207/08/2026
ARCO PLBG AND HTG INCFire Protection109/16/2026
ARCO PLBG AND HTG INCPlumbing107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
MUNICIPAL TESTING LABORAT230506/16/2026
M/P/S ENGINEERING PLLC1588105/26/2026
BARRY STRUCTURAL ENGINEER749107/11/2025
Building Lifecycle
All (73)Filed (6)Permit Issued (4)Inspection (1)Objection (32)Special Inspection (30)
09/15/2026
Permit issued — Sprinklers
B01187061-S3-EW-SP
09/04/2026
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Roughing
Certified
View inspection ↗
06/18/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
Cloud Lee
06/18/2026
Special inspection requirement — Energy Code Compliance Inspections
Jennifer Cramm
06/18/2026
Special inspection requirement — HVAC-R and service water heating system controls
Jennifer Cramm
06/18/2026
Special inspection requirement — HVAC-R and service water piping design and insulation
Jennifer Cramm
06/18/2026
Special inspection requirement — HVAC-R and service water heating equipment
Jennifer Cramm
06/18/2026
Special inspection requirement — Maintenance information
Jennifer Cramm
06/16/2026
Filed — Alteration CO
RENOVATION OF EXISTING 2-FAMILY RESIDENCE. RE-DISTRIBUTE EXISTING DWELLING UNITS. DEMO & CONSTRUCT WALLS, FINISHES & CABINETRY. REPLACE EXISTING WINDOWS. ENLARGE OPENING AT REAR FACADE. CONSTRUCT NEW REAR DECK. OBTAIN CO FOR 2 FAMILY. NO CHANGE TO BULK.
B01187061-P2
06/02/2026
Permit issued — Structural
B01187061-S2-ST
06/01/2026
Special inspection requirement — HVAC-R and service water piping design and insulation
Jennifer Cramm
06/01/2026
Special inspection requirement — HVAC-R and service water heating equipment
Jennifer Cramm
06/01/2026
Special inspection requirement — HVAC-R and service water heating system controls
Jennifer Cramm
06/01/2026
Special inspection requirement — Energy Code Compliance Inspections
Jennifer Cramm
06/01/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
Cloud Lee
06/01/2026
Special inspection requirement — Maintenance information
Jennifer Cramm
05/26/2026
Filed — Alteration CO
RENOVATION OF EXISTING 2-FAMILY RESIDENCE. RE-DISTRIBUTE EXISTING DWELLING UNITS. DEMO & CONSTRUCT WALLS, FINISHES & CABINETRY. REPLACE EXISTING WINDOWS. ENLARGE OPENING AT REAR FACADE. CONSTRUCT NEW REAR DECK. OBTAIN CO FOR 2 FAMILY. NO CHANGE TO BULK.
B01187061-S3
05/19/2026
Special inspection requirement — Structural Stability – Alterations of existing buildings
Cloud Lee
05/19/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
Cloud Lee
05/19/2026
Special inspection requirement — Energy Code Compliance Inspections
Jennifer Cramm
05/19/2026
Special inspection requirement — Fire-Resistance Rated Construction
Jennifer Cramm
05/19/2026
Special inspection requirement — Fenestration areas
Jennifer Cramm
05/19/2026
Special inspection requirement — Air barrier - visual inspection
Jennifer Cramm
05/19/2026
Special inspection requirement — Fenestration and door U-factor and product ratings
Jennifer Cramm
05/19/2026
Special inspection requirement — Fenestration air leakage
Jennifer Cramm
05/19/2026
Special inspection requirement — Insulation placement and R values
Jennifer Cramm
05/19/2026
Special inspection requirement — Permanent certificate
Jennifer Cramm
05/19/2026
Special inspection requirement — Interior lighting power
Jennifer Cramm
04/30/2026
Filed — Alteration CO
RENOVATION OF EXISTING 2-FAMILY RESIDENCE. RE-DISTRIBUTE EXISTING DWELLING UNITS. DEMO & CONSTRUCT WALLS, FINISHES & CABINETRY. REPLACE EXISTING WINDOWS. ENLARGE OPENING AT REAR FACADE. CONSTRUCT NEW REAR DECK. OBTAIN CO FOR 2 FAMILY. NO CHANGE TO BULK.
B01187061-P1
03/16/2026
Permit issued — Plumbing
B01187061-S1-PL
03/05/2026
Permit issued — General Construction
B01187061-I1-GC
02/24/2026
Objection resolved — Addressed
02/10/2026
Objection resolved — Addressed
02/06/2026
Objection resolved — Addressed
01/29/2026
Objection resolved — Addressed
12/12/2025
Objection resolved — Addressed
09/17/2025
Objection raised — Zoning
09/17/2025
Objection raised — Scope
09/17/2025
Objection raised — Zoning
09/17/2025
Objection raised — Fire_Protection
09/15/2025
Objection raised — Admin
09/11/2025
Objection resolved — Addressed
09/11/2025
Objection resolved — Addressed
09/11/2025
Objection resolved — Addressed
09/09/2025
Objection resolved — Addressed
09/09/2025
Objection resolved — Addressed
09/09/2025
Objection resolved — Addressed
09/02/2025
Objection resolved — Addressed
08/18/2025
Objection resolved — Addressed
08/18/2025
Objection resolved — Addressed
07/23/2025
Objection resolved — Addressed
07/23/2025
Objection resolved — Addressed
07/22/2025
Objection raised — Scope
07/22/2025
Objection raised — Scope
07/22/2025
Objection raised — Scope
07/22/2025
Objection raised — Admin
07/22/2025
Objection raised — Structural
07/22/2025
Objection raised — Zoning
07/22/2025
Objection raised — Scope
07/21/2025
Objection raised — Plumbing
Latest 60 of 73 events.
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWSprinklersPermit IssuedARCO PLBG AND HTG INC09/15/2026
DOB NOWStructuralPermit IssuedNO LIMIT CONTRACTING INC06/02/2026
DOB NOWPlumbingPermit IssuedARCO PLBG AND HTG INC03/16/2026
DOB NOWGeneral ConstructionPermit IssuedNO LIMIT CONTRACTING INC03/05/2026
1 project · most recent 06/16/2026
Gas Water/Sanitary
FiledStatusContractorScope
06/16/2026Permit IssuedARCO PLBG AND HTG INCGas, Water/Sanitary
1 project · most recent 03/29/2026
General Wiring
FiledStatusContractorScope
03/29/2026Permit IssuedWCK ELECTRIC CORP.General Wiring
1 project · most recent 06/16/2026
FiledStatusContractorScope
06/16/2026Permit IssuedARCO PLBG AND HTG INC1 scope_items
▾Field Inspections (DOB CAP) — 1
DateTypeResultReport
09/04/2026Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
▾Special Inspection Requirements (DOB NOW) — 30
DateRequirementInspectorRole
06/18/2026Fire-Resistant Penetrations and JointsCloud Leespecial
06/18/2026Energy Code Compliance InspectionsJennifer Crammprogress
06/18/2026HVAC-R and service water heating system controlsJennifer Crammenergy_progress
06/18/2026HVAC-R and service water piping design and insulationJennifer Crammenergy_progress
06/18/2026HVAC-R and service water heating equipmentJennifer Crammenergy_progress
06/18/2026Maintenance informationJennifer Crammenergy_progress
06/01/2026HVAC-R and service water piping design and insulationJennifer Crammenergy_progress
06/01/2026HVAC-R and service water heating equipmentJennifer Crammenergy_progress
06/01/2026HVAC-R and service water heating system controlsJennifer Crammenergy_progress
06/01/2026Energy Code Compliance InspectionsJennifer Crammprogress
06/01/2026Fire-Resistant Penetrations and JointsCloud Leespecial
06/01/2026Maintenance informationJennifer Crammenergy_progress
05/19/2026Structural Stability – Alterations of existing buildingsCloud Leespecial
05/19/2026Fire-Resistant Penetrations and JointsCloud Leespecial
05/19/2026Energy Code Compliance InspectionsJennifer Crammprogress
05/19/2026Fire-Resistance Rated ConstructionJennifer Crammprogress
05/19/2026Fenestration areasJennifer Crammenergy_progress
05/19/2026Air barrier - visual inspectionJennifer Crammenergy_progress
05/19/2026Fenestration and door U-factor and product ratingsJennifer Crammenergy_progress
05/19/2026Fenestration air leakageJennifer Crammenergy_progress
05/19/2026Insulation placement and R valuesJennifer Crammenergy_progress
05/19/2026Permanent certificateJennifer Crammenergy_progress
05/19/2026Interior lighting powerJennifer Crammenergy_progress
06/10/2025Structural Steel - WeldingMICHAEL BARRYspecial
06/10/2025Structural Steel - DetailsMICHAEL BARRYspecial
Latest 25 of 30.
▾Documents — 55 on file (BIS + DOB NOW)
▸Plans & Drawings6
▸DOB NOWPlans/Sketch6
08/17/2026B01187061-P2Request digital key ↗
08/17/2026B01187061-P1Request digital key ↗
08/17/2026B01187061-S2Request digital key ↗
Showing 3 of 6 on file for this type
▸Zoning, Tax Lot & Property Records2
▸DOB NOWHouse Number Verification: TOPO Stamp2
08/13/2026B01187061-P1Open ↗
08/13/2026B01187061-I1Open ↗
▸Seals & Professional Certifications36
▸DOB NOWProgress Inspector Seal & Signature20
09/23/2026B01187061-S2Open ↗
09/01/2026B01187061-S1Open ↗
09/01/2026B01187061-S1Open ↗
Showing 3 of 20 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature10
09/23/2026B01187061-S2Open ↗
09/23/2026B01187061-S2Open ↗
09/23/2026B01187061-S2Open ↗
Showing 3 of 10 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature6
08/17/2026B01187061-P2Open ↗
08/17/2026B01187061-P1Open ↗
08/17/2026B01187061-S2Open ↗
Showing 3 of 6 on file for this type
▸Safety & Tenant Protection2
▸DOB NOWStreet Tree Checklist2
08/13/2026B01187061-P1Open ↗
08/13/2026B01187061-I1Open ↗
▸Environmental & Asbestos6
▸DOB NOWDEP ACP-5: Asbestos Assessment Report6
08/17/2026B01187061-S3Open ↗
08/17/2026B01187061-P2Open ↗
08/17/2026B01187061-P1Open ↗
Showing 3 of 6 on file for this type
▸Other Documents3
▸DOB NOWProperty Ownership Certification2
08/17/2026B01187061-I1Open ↗
08/17/2026B01187061-P1Open ↗
▸DOB NOWFinal Survey1
08/13/2026B01187061-I1Open ↗