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Two family converted from one family
637 CARLTON AVENUE
BROOKLYN · Prospect Heights · BIN 3028715
💬 Discuss this project
1868Year Built
3Stories
B3Building Class
R6BZoning
2,940 sfGross Floor Area
2Units
FDNY Report ↗
Two family converted from one family · 1,680 sf lot · 1.75 FAR built · Flood zone X
Locations of Work
StructuralMechanicalPlumbingFire Protection
Permit Issued — active, not yet Signed-off
RoofUnder Construction2p · 2 filings · 9 docs
Floor 3Under Construction9p · 3 filings · 20 docs
Floor 2Under Construction11p · 4 filings · 20 docs
Floor 1Under Construction29p · 4 filings · 20 docs
CellarUnder Construction12p · 4 filings · 20 docs
BasementUnder Construction4p · 2 filings · 20 docs
Sub-BasementUnder Construction5p · 1 filing · 3 docs
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
06/04/2025$3.0M—— → —$1,003/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
WELLS ENGINEERING, PLLC301/06/2026
AKT DESIGNS LLC111/18/2025
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
NOEL BUILDING CONSULTING INC803/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
ALM CONSTRUCTION MANAGEGeneral Contractor207/08/2026
NONSTOP PLUMBERS CORPFire Protection106/28/2026
AUTHENTIC PLBG CORPPlumbing106/28/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
WELLS DESIGN & CONSULTING7750301/06/2026
NIZA WORKS OF ARCH PLLC6101111/18/2025
Building Lifecycle
All (43)Filed (4)Permit Issued (4)Inspection (3)Objection (14)Special Inspection (18)
08/21/2026
Inspection — Pass-Final PL - Up to 3 Requested Floors
Pass
View inspection ↗
07/20/2026
Inspection — Certified Remove/Cap - work done in accordance with code
Certified
View inspection ↗
07/17/2026
Inspection — Certified Water and Sanitary-WS-Fixtures-Finish
Certified
View inspection ↗
06/22/2026
Permit issued — Sprinklers
B01298447-I1-EW-SP
06/22/2026
Permit issued — Plumbing
B01263192-I1-PL
05/29/2026
Permit issued — Mechanical Systems
B01263187-I1-MS
05/28/2026
Permit issued — Structural
B01263176-I1-GC-CX
03/26/2026
Special inspection requirement — Insulation placement and R values
Nicolas Zapata
03/26/2026
Special inspection requirement — Lighting in dwelling units
Nicolas Zapata
03/26/2026
Special inspection requirement — Fenestration areas
Nicolas Zapata
03/26/2026
Special inspection requirement — Interior lighting power
Nicolas Zapata
03/26/2026
Special inspection requirement — Maintenance information
Nicolas Zapata
03/26/2026
Special inspection requirement — Fenestration air leakage
Nicolas Zapata
03/26/2026
Special inspection requirement — Fenestration and door U-factor and product ratings
Nicolas Zapata
03/26/2026
Special inspection requirement — Lighting controls
Nicolas Zapata
03/26/2026
Special inspection requirement — Air barrier - visual inspection
Nicolas Zapata
03/12/2026
Objection resolved — Resolved
02/11/2026
Objection resolved — Addressed
02/09/2026
Objection raised — Cost
02/06/2026
Objection resolved — Resolved
02/03/2026
Objection resolved — Addressed
01/20/2026
Objection resolved — Addressed
01/12/2026
Objection raised — Fire_Protection
01/12/2026
Objection raised — Fire_Protection
01/12/2026
Objection resolved — Resolved
01/06/2026
Filed — Alteration
MODIFICATION OF AN EXISTING SPRINKLER SYSTEM WITHIN AN EXISITNG 2 FAMILY HOME. NO CHANGE OF USE, EGRESS OR OCCUPANCY UNDER THIS APPLICATION.
B01298447-I1
01/05/2026
Objection raised — Zoning
01/05/2026
Objection raised — Plumbing
01/05/2026
Objection raised — Zoning
12/03/2025
Objection resolved — Addressed
12/01/2025
Objection raised — Admin
11/18/2025
Filed — Alteration CO
EXISTING TWO-FAMILY DWELLING TO BE RENOVATED. REMOVAL OF PARTITIONS, INSTALLATION OF PARTITIONS. INSTALL NEW WALL AND FLOOR FINISHED AND REAR ENLARGEMENT WITH REAR DECK. AMENDED CERTIFICATE OF OCCUPANCY TO BE OBTAINED.
B01263176-I1
11/01/2025
Filed — Alteration
B01263187-I1
11/01/2025
Filed — Alteration
B01263192-I1
10/08/2025
Special inspection requirement — Energy Code Compliance Inspections
Tyrone Wells
10/08/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
Tyrone Wells
10/08/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
Tyrone Wells
10/07/2025
Special inspection requirement — Masonry
Nicolas Zapata
10/06/2025
Special inspection requirement — Sprinkler Systems
Tyrone Wells
07/29/2025
Special inspection requirement — Energy Code Compliance Inspections
Nicolas Zapata
07/29/2025
Special inspection requirement — Final
Tyrone Wells
07/29/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
Nicolas Zapata
07/29/2025
Special inspection requirement — Fire-Resistance Rated Construction
Nicolas Zapata
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWSprinklersPermit IssuedNONSTOP PLUMBERS CORP06/22/2026
DOB NOWPlumbingPermit IssuedAUTHENTIC PLBG CORP06/22/2026
DOB NOWMechanical SystemsPermit IssuedALM CONSTRUCTION MANAGE05/29/2026
DOB NOWStructuralPermit IssuedALM CONSTRUCTION MANAGE05/28/2026
1 project · most recent 01/06/2026
FiledStatusContractorScope
01/06/2026Permit IssuedNONSTOP PLUMBERS CORP46 heads
1 project · most recent 01/06/2026
FiledStatusContractorScope
01/06/2026———
1 project · most recent 06/24/2026
General Wiring
FiledStatusContractorScope
06/24/2026Permit IssuedVERTEX ELECTRIC CORP.General Wiring
1 project · most recent 11/18/2025
Concrete Masonry Wood
FiledStatusContractorScope
11/18/2025Permit IssuedALM CONSTRUCTION MANAGEConcrete, Masonry, Wood
▾Field Inspections (DOB CAP) — 3
DateTypeResultReport
08/21/2026Pass-Final PL - Up to 3 Requested FloorsPassView ↗
07/20/2026Certified Remove/Cap - work done in accordance with codeCertifiedView ↗
07/17/2026Certified Water and Sanitary-WS-Fixtures-FinishCertifiedView ↗
▾Special Inspection Requirements (DOB NOW) — 18
DateRequirementInspectorRole
03/26/2026Insulation placement and R valuesNicolas Zapataenergy_progress
03/26/2026Lighting in dwelling unitsNicolas Zapataenergy_progress
03/26/2026Fenestration areasNicolas Zapataenergy_progress
03/26/2026Interior lighting powerNicolas Zapataenergy_progress
03/26/2026Maintenance informationNicolas Zapataenergy_progress
03/26/2026Fenestration air leakageNicolas Zapataenergy_progress
03/26/2026Fenestration and door U-factor and product ratingsNicolas Zapataenergy_progress
03/26/2026Lighting controlsNicolas Zapataenergy_progress
03/26/2026Air barrier - visual inspectionNicolas Zapataenergy_progress
10/08/2025Energy Code Compliance InspectionsTyrone Wellsprogress
10/08/2025Fire-Resistant Penetrations and JointsTyrone Wellsspecial
10/08/2025Fire-Resistant Penetrations and JointsTyrone Wellsspecial
10/07/2025MasonryNicolas Zapataspecial
10/06/2025Sprinkler SystemsTyrone Wellsspecial
07/29/2025Energy Code Compliance InspectionsNicolas Zapataprogress
07/29/2025FinalTyrone Wellsprogress
07/29/2025Fire-Resistant Penetrations and JointsNicolas Zapataspecial
07/29/2025Fire-Resistance Rated ConstructionNicolas Zapataprogress
▾Documents — 29 on file (BIS + DOB NOW)
▸Plans & Drawings3
▸DOB NOWPlans/Sketch3
08/20/2026B01263187-I1Request digital key ↗
08/20/2026B01263192-I1Request digital key ↗
08/19/2026B01263176-I1Request digital key ↗
▸Applications & Permits2
▸DOB NOWLPC Approval/Permit2
08/13/2026B01263176-I1Open ↗
08/13/2026B01263187-I1Open ↗
▸Zoning, Tax Lot & Property Records4
▸DOB NOWZD1: DOB Zoning Diagram2
08/19/2026B01263176-I1Open ↗
08/13/2026B01263176-I1Open ↗
▸DOB NOWHouse Number Verification: TOPO Stamp1
08/13/2026B01263176-I1Open ↗
▸DOB NOWZoning Exhibit form (1-5)1
08/13/2026B01263176-I1Open ↗
▸Seals & Professional Certifications11
▸DOB NOWDPL-1: Design Professional Seal & Signature4
08/19/2026B01263176-I1Open ↗
08/13/2026B01298447-I1Open ↗
08/13/2026B01263187-I1Open ↗
Showing 3 of 4 on file for this type
▸DOB NOWProgress Inspector Seal & Signature4
09/29/2026B01263176-I1Open ↗
09/29/2026B01263176-I1Open ↗
09/29/2026B01263176-I1Open ↗
Showing 3 of 4 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature3
09/29/2026B01263176-I1Open ↗
09/23/2026B01298447-I1Open ↗
09/01/2026B01263192-I1Open ↗
▸Safety & Tenant Protection1
▸DOB NOWStreet Tree Checklist1
08/13/2026B01263176-I1Open ↗
▸Environmental & Asbestos4
▸DOB NOWDEP ACP-5: Asbestos Assessment Report4
08/19/2026B01263176-I1Open ↗
08/13/2026B01263187-I1Open ↗
08/13/2026B01263192-I1Open ↗
Showing 3 of 4 on file for this type
▸Other Documents4
▸DOB NOWPlot Diagram1
08/13/2026B01263176-I1Open ↗
▸DOB NOWProperty Ownership Certification1
08/19/2026B01263176-I1Open ↗
▸DOB NOWLocal Law 92/94 of 2019 Sustainable Roof Zone1
08/13/2026B01263176-I1Open ↗
▸DOB NOWSite Survey: Initial1
08/13/2026B01263176-I1Open ↗