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Two family converted from one family
531 2 STREET
BROOKLYN · BIN 3025217
💬 Discuss this project
1898Year Built
3Stories
B3Building Class
R6BZoning
3,908 sfGross Floor Area
2Units
FDNY Report ↗
Two family converted from one family · 2,000 sf lot · 1.95 FAR built · Flood zone X
Locations of Work
MechanicalPlumbing
Roof2p · 2 filings · 17 docs
Cellar1p · 1 filing · 10 docs
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
C O HENSON ARCHITECTURE103/21/2026
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
HENSON ARCHITECTURE PLLC307/01/2026
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
JAM CONSULTANTS, INC.203/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
DOOKER, KENYElectrical103/21/2026
RYAN, ROBERTElectrical103/21/2026
VOSILLA, ALBERTOElectrical103/21/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
HENSON ARCHITECTURE, PLLC973307/01/2026
Building Lifecycle
All (53)Filed (3)Objection (23)Special Inspection (27)
09/16/2026
Objection resolved — Resolved
09/16/2026
Objection resolved — Resolved
09/16/2026
Objection resolved — Resolved
09/16/2026
Objection resolved — Resolved
09/16/2026
Objection resolved — Resolved
09/16/2026
Objection resolved — Resolved
07/27/2026
Special inspection requirement — Final
07/27/2026
Special inspection requirement — Fire-Resistance Rated Construction
Scott Henson
07/27/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
Scott Henson
07/27/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
Scott Henson
07/23/2026
Objection raised — Scope
07/23/2026
Objection raised — Scope
07/23/2026
Objection raised — Fire_Protection
07/23/2026
Objection raised — Scope
07/23/2026
Objection raised — Scope
07/21/2026
Objection raised — Cost
07/21/2026
Objection raised — Scope
07/21/2026
Objection raised — Cost
07/21/2026
Objection raised — Energy
07/21/2026
Objection raised — Scope
07/20/2026
Objection raised — Scope
07/01/2026
Filed — Alteration
REMOVE FIXTURES AND PIPING IN AREAS OF WORK. REPLACE ALL WITH NEW FIXTURES AND PIPING IN ALL NEW LOCATIONS.
B01390058-I1
07/01/2026
Filed — Alteration
INSTALL NEW HEAT PUMP MECHANICAL SYSTEM AND ENERGY RECOVERY VENTILATION SYSTEM, KITCHEN EXHAUST AND MAKEUP AIR.
B01390017-I1
05/01/2026
Special inspection requirement — HVAC-R and service water heating system controls
Scott Henson
05/01/2026
Special inspection requirement — Energy Code Compliance Inspections
Scott Henson
05/01/2026
Special inspection requirement — HVAC-R and service water heating system controls
Scott Henson
05/01/2026
Special inspection requirement — HVAC-R and service water heating equipment
Scott Henson
05/01/2026
Special inspection requirement — HVAC-R and service water piping design and insulation
Scott Henson
05/01/2026
Special inspection requirement — Energy Code Compliance Inspections
Scott Henson
05/01/2026
Special inspection requirement — HVAC-R and service water piping design and insulation
Scott Henson
05/01/2026
Special inspection requirement — HVAC-R and service water heating equipment
Scott Henson
05/01/2026
Special inspection requirement — Maintenance information
Scott Henson
04/28/2026
Objection resolved — Addressed
04/20/2026
Special inspection requirement — Final
Scott Henson
04/20/2026
Special inspection requirement — Mechanical Systems
Scott Henson
01/10/2024
Objection raised — Scope
01/03/2024
Objection resolved — Addressed
12/15/2023
Objection resolved — Addressed
12/11/2023
Objection raised — Other
12/11/2023
Objection raised — Structural
10/31/2023
Filed — Alteration
Interior and exterior renovations of 2 family house. Proposed scope of work including, but not limited to, partition changes, new doors and windows, new rear yard addition and new rear yard deck.
B00948841-I1
10/27/2023
Special inspection requirement — Fenestration and door U-factor and product ratings
Scott Henson
10/27/2023
Special inspection requirement — Air barrier - visual inspection
Scott Henson
10/27/2023
Special inspection requirement — Fenestration areas
Scott Henson
10/27/2023
Special inspection requirement — Energy Code Compliance Inspections
Scott Henson
10/27/2023
Special inspection requirement — Maintenance information
Scott Henson
10/27/2023
Special inspection requirement — Insulation placement and R values
Scott Henson
10/27/2023
Special inspection requirement — Permanent certificate
Scott Henson
10/27/2023
Special inspection requirement — Lighting in dwelling units
Scott Henson
10/27/2023
Special inspection requirement — Fenestration air leakage
Scott Henson
10/16/2023
Special inspection requirement — Masonry
Scott Henson
10/16/2023
Special inspection requirement — Fire-Resistant Penetrations and Joints
Scott Henson
10/16/2023
Special inspection requirement — Fire-Resistance Rated Construction
Scott Henson
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
BISPLISSUEDJ. CAIAZZO PLBG & HTG COR03/19/2008
BISOTISSUEDNACCARATO CONTRACTING INC02/21/2008
1 project · most recent 07/01/2026
Air Conditioning Systems Heating Systems Ventilation Systems
FiledStatusContractorScopeMake / Model / Capacity
07/01/2026——Air Conditioning Systems, Heating Systems, Ventilation Systems
Cooling
Mitsubishi Electric MXZ-SM36NLHZ 26,000 BTU · Heat Pump Outdoor ×1
SUZ-AA12NLHZ 12,000 BTU · Heat Pump Outdoor ×1
Heating
Mitsubishi Electric MXZ-SM36NLHZ 35,000 BTU · Heat Pump Outdoor ×1
SUZ-AA12NLHZ 15,000 BTU · Heat Pump Outdoor ×1
Ventilation
Zehnder COMFOAIR Q350 ERV 72 CFM · Erv ×1
COMFOAIR Q450 ERV 144 CFM · Erv ×1
1 project · most recent 07/01/2026
Gas Water/Sanitary
FiledStatusContractorScope
07/01/2026——Gas, Water/Sanitary
▾Special Inspection Requirements (DOB NOW) — 27
DateRequirementInspectorRole
07/27/2026Final—progress
07/27/2026Fire-Resistance Rated ConstructionScott Hensonprogress
07/27/2026Fire-Resistant Penetrations and JointsScott Hensonspecial
07/27/2026Fire-Resistant Penetrations and JointsScott Hensonspecial
05/01/2026HVAC-R and service water heating system controlsScott Hensonenergy_progress
05/01/2026Energy Code Compliance InspectionsScott Hensonprogress
05/01/2026HVAC-R and service water heating system controlsScott Hensonenergy_progress
05/01/2026HVAC-R and service water heating equipmentScott Hensonenergy_progress
05/01/2026HVAC-R and service water piping design and insulationScott Hensonenergy_progress
05/01/2026Energy Code Compliance InspectionsScott Hensonprogress
05/01/2026HVAC-R and service water piping design and insulationScott Hensonenergy_progress
05/01/2026HVAC-R and service water heating equipmentScott Hensonenergy_progress
05/01/2026Maintenance informationScott Hensonenergy_progress
04/20/2026FinalScott Hensonprogress
04/20/2026Mechanical SystemsScott Hensonspecial
10/27/2023Fenestration and door U-factor and product ratingsScott Hensonenergy_progress
10/27/2023Air barrier - visual inspectionScott Hensonenergy_progress
10/27/2023Fenestration areasScott Hensonenergy_progress
10/27/2023Energy Code Compliance InspectionsScott Hensonprogress
10/27/2023Maintenance informationScott Hensonenergy_progress
10/27/2023Insulation placement and R valuesScott Hensonenergy_progress
10/27/2023Permanent certificateScott Hensonenergy_progress
10/27/2023Lighting in dwelling unitsScott Hensonenergy_progress
10/27/2023Fenestration air leakageScott Hensonenergy_progress
10/16/2023MasonryScott Hensonspecial
Latest 25 of 27.
▾Documents — 32 on file (BIS + DOB NOW)
▸Plans & Drawings3
▸DOB NOWPlans/Sketch3
08/26/2026B00948841-I1Request digital key ↗
08/15/2026B01390058-I1Request digital key ↗
08/14/2026B01390017-I1Request digital key ↗
▸Applications & Permits5
▸DOB NOWLPC Approval/Permit3
08/26/2026B00948841-I1Open ↗
08/15/2026B01390058-I1Open ↗
08/14/2026B01390017-I1Open ↗
▸BISWORK PERMIT APPLICATION2
03/19/2008310082022Open ↗
02/21/2008310082022Open ↗
▸Seals & Professional Certifications18
▸DOB NOWProgress Inspector Seal & Signature10
08/28/2026B01390058-I1Open ↗
08/28/2026B01390058-I1Open ↗
08/28/2026B01390058-I1Open ↗
Showing 3 of 10 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature3
08/16/2026B01390017-I1Open ↗
08/16/2026B01390058-I1Open ↗
08/13/2026B00948841-I1Open ↗
▸BISPROFESSIONAL CERTIFIED CHECKLIST1
01/17/2008310082022Open ↗
▸BISPROFESSIONAL CERTIFICATION STATEMENT FORM1
01/17/2008310082022Open ↗
▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION1
01/17/2008310082022Open ↗
▸BISPC FULL REPORT1
01/17/2008310082022Open ↗
▸DOB NOWSpecial Inspector Seal & Signature1
08/23/2026B01390017-I1Open ↗
▸Trade Schedules & Equipment1
▸BISSELF-CERT PLUMBING NOTICE1
06/18/2008310082022Open ↗
▸Environmental & Asbestos1
▸BISTHIS IS 'NOT AN ASBESTOS PROJECT'1
01/17/2008310082022Open ↗
▸Approvals, Objections & Sign-offs2
▸BISLANDMARKS APPROVAL1
01/17/2008310082022Open ↗
▸BISADMINISTRATIVE OBJECTIONS1
01/17/2008310082022Open ↗
▸Cost, Insurance & Ownership2
▸BISCOST AFFIDAVIT2
03/19/2008310082022Open ↗
02/21/2008310082022Open ↗