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Over six families without stores
600 LEONARD STREET
BROOKLYN · BIN 3066169
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1930Year Built
4Stories
C1Building Class
R6BZoning
5,500 sfGross Floor Area
7Units
FDNY Report ↗
Over six families without stores · 2,375 sf lot · 2.32 FAR built · Flood zone X
Locations of Work
ArchitectureStructuralMechanicalPlumbingFire Protection
Roof7p · 1 filing · 20 docs
Bulkhead1p · 1 filing · 20 docs
Floor 43p · 1 filing · 20 docs
Floor 33p · 1 filing · 20 docs
Floor 23p · 1 filing · 20 docs
Floor 12p · 1 filing · 20 docs
Cellar7p · 1 filing · 20 docs
Basement1p · 1 filing · 20 docs
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
BLANK PROPERTY GROUP409/13/2026
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
SH ENGINEERING PLLC305/20/2026
BRIAN MCDONOUGH, PE303/26/2026
KANE ARCHITECTURE AND URBAN DESIGN107/31/2025
Building Lifecycle
All (64)Filed (7)Objection (27)Special Inspection (30)
05/20/2026
Filed — ALT-CO - New Building with Existing Elements to Remain
Installation of Mechanical Systems in conjunction with vertical and horizontal extension B01258457
B01258457-S4
05/20/2026
Filed — ALT-CO - New Building with Existing Elements to Remain
Installation of Mechanical Systems in conjunction with vertical and horizontal extension B01258457
B01258457-S6
05/20/2026
Filed — ALT-CO - New Building with Existing Elements to Remain
Installation of Mechanical Systems in conjunction with vertical and horizontal extension B01258457
B01258457-S5
05/19/2026
Special inspection requirement — Subgrade Inspections
05/19/2026
Special inspection requirement — Subsurface Investigations (Borings/Test Pits)
05/19/2026
Special inspection requirement — Structural Steel - Details
05/19/2026
Special inspection requirement — Structural Steel - High Strength Bolting
05/19/2026
Special inspection requirement — Structural Steel - Welding
05/19/2026
Special inspection requirement — Concrete - Cast-In-Place
05/19/2026
Special inspection requirement — Structural Stability – Alterations of existing buildings
05/19/2026
Special inspection requirement — Masonry
05/19/2026
Special inspection requirement — Subsurface Investigations (Borings/Test Pits)
05/19/2026
Special inspection requirement — Concrete - Cast-In-Place
05/19/2026
Special inspection requirement — Excavations - Sheeting, Shoring, and Bracing
05/19/2026
Special inspection requirement — Subgrade Inspections
05/19/2026
Special inspection requirement — Structural Stability – Alterations of existing buildings
05/12/2026
Objection resolved — Resolved
04/20/2026
Objection resolved — Addressed
04/20/2026
Objection resolved — Addressed
04/09/2026
Objection raised — Cost
04/09/2026
Objection raised — Fire_Protection
04/07/2026
Objection raised — Zoning
04/07/2026
Objection raised — Cost
04/07/2026
Objection raised — Plumbing
04/07/2026
Objection raised — Zoning
04/07/2026
Objection raised — Fire_Protection
04/07/2026
Objection raised — Energy
04/07/2026
Objection raised — Cost
04/07/2026
Objection raised — Energy
03/26/2026
Filed — ALT-CO - New Building with Existing Elements to Remain
Installation of Mechanical Systems in conjunction with vertical and horizontal extension B01258457
B01258457-S9
03/26/2026
Filed — ALT-CO - New Building with Existing Elements to Remain
Installation of Mechanical Systems in conjunction with vertical and horizontal extension B01258457
B01258457-S7
03/26/2026
Filed — ALT-CO - New Building with Existing Elements to Remain
Installation of Mechanical Systems in conjunction with vertical and horizontal extension B01258457
B01258457-S8
03/19/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
03/19/2026
Special inspection requirement — Fire-Resistance Rated Construction
03/14/2026
Special inspection requirement — Private On-Site Storm Water Disposal Systems-, and Detention Facilities, Installation
03/14/2026
Special inspection requirement — HVAC-R and service water heating equipment
03/14/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
03/14/2026
Special inspection requirement — Energy Code Compliance Inspections
03/14/2026
Special inspection requirement — HVAC-R and service water piping design and insulation
03/14/2026
Special inspection requirement — Maintenance information
03/14/2026
Special inspection requirement — HVAC-R and service water heating system controls
03/13/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
03/13/2026
Special inspection requirement — Sprinkler Systems
01/21/2026
Objection raised — Zoning
01/09/2026
Objection resolved — Addressed
12/02/2025
Objection resolved — Addressed
12/02/2025
Objection resolved — Addressed
12/02/2025
Objection resolved — Addressed
09/17/2025
Objection raised — Admin
09/17/2025
Objection raised — Zoning
09/17/2025
Objection raised — Fire_Protection
09/17/2025
Objection raised — Cost
09/17/2025
Objection raised — Structural
09/05/2025
Special inspection requirement — Designated Seismic System
09/05/2025
Special inspection requirement — Final
09/05/2025
Special inspection requirement — Designated Seismic System
09/05/2025
Special inspection requirement — Final
09/05/2025
Special inspection requirement — Footing and Foundation
09/03/2025
Objection resolved — Addressed
09/03/2025
Objection resolved — Addressed
Latest 60 of 64 events.
Nothing on file for this building.
1 project · most recent 05/20/2026
Heating and Air Conditioning Systems Ventilation Systems
FiledStatusContractorScopeMake / Model / Capacity
05/20/2026——Heating and Air Conditioning Systems, Ventilation Systems
Heat / Cool
Stelpro AWFA2002TW 5,120 BTU · Electric Heater ×3
AMIR2008W 6,825 BTU · Electric Heater ×2
AWFA3008TW 10,240 BTU · Electric Heater ×1
Lg ZRUM060GSS0 60,000 BTU · Vrf Outdoor ×2
ZRUM048GSS0 48,000 BTU · Vrf Outdoor ×1
Ventilation
Fantech FG 4XL EC 50 CFM · Exhaust Fan ×4
1 project · most recent 05/20/2026
Sprinkler System
FiledStatusContractorScope
05/20/2026——Sprinkler System
1 project · most recent 05/20/2026
Storm Water/Sanitary
FiledStatusContractorScope
05/20/2026——Storm, Water/Sanitary
1 project · most recent 05/20/2026
Steel Concrete Masonry
FiledStatusContractorScope
05/20/2026——Steel, Concrete, Masonry
▾Special Inspection Requirements (DOB NOW) — 41
DateRequirementInspectorRole
05/19/2026Subgrade Inspections—special
05/19/2026Subsurface Investigations (Borings/Test Pits)—special
05/19/2026Structural Steel - Details—special
05/19/2026Structural Steel - High Strength Bolting—special
05/19/2026Structural Steel - Welding—special
05/19/2026Concrete - Cast-In-Place—special
05/19/2026Structural Stability – Alterations of existing buildings—special
05/19/2026Masonry—special
05/19/2026Subsurface Investigations (Borings/Test Pits)—special
05/19/2026Concrete - Cast-In-Place—special
05/19/2026Excavations - Sheeting, Shoring, and Bracing—special
05/19/2026Subgrade Inspections—special
05/19/2026Structural Stability – Alterations of existing buildings—special
03/19/2026Fire-Resistant Penetrations and Joints—special
03/19/2026Fire-Resistance Rated Construction—progress
03/14/2026Private On-Site Storm Water Disposal Systems-, and Detention Facilities, Installation—special
03/14/2026HVAC-R and service water heating equipment—energy_progress
03/14/2026Fire-Resistant Penetrations and Joints—special
03/14/2026Energy Code Compliance Inspections—progress
03/14/2026HVAC-R and service water piping design and insulation—energy_progress
03/14/2026Maintenance information—energy_progress
03/14/2026HVAC-R and service water heating system controls—energy_progress
03/13/2026Fire-Resistant Penetrations and Joints—special
03/13/2026Sprinkler Systems—special
09/05/2025Designated Seismic System—special
Latest 25 of 41.
▾Documents — 26 on file (BIS + DOB NOW)
▸Plans & Drawings7
▸DOB NOWPlans/Sketch7
08/16/2026B01258457-S5Request digital key ↗
08/16/2026B01258457-I1Request digital key ↗
08/16/2026B01258457-S9Request digital key ↗
Showing 3 of 7 on file for this type
▸Zoning, Tax Lot & Property Records3
▸DOB NOWZD1: DOB Zoning Diagram2
08/16/2026B01258457-I1Open ↗
08/13/2026B01258457-I1Open ↗
▸DOB NOWHouse Number Verification: TOPO Stamp1
08/16/2026B01258457-I1Open ↗
▸Seals & Professional Certifications7
▸DOB NOWDPL-1: Design Professional Seal & Signature7
08/16/2026B01258457-S9Open ↗
08/16/2026B01258457-S8Open ↗
08/16/2026B01258457-S7Open ↗
Showing 3 of 7 on file for this type
▸Trade Schedules & Equipment2
▸DOB NOWDEP: Sewer Certification (Sanitary/Storm)2
08/16/2026B01258457-I1Open ↗
08/13/2026B01258457-I1Open ↗
▸Inspections & Test Reports4
▸DOB NOWTR4 Test Report and Plot Diagram2
08/16/2026B01258457-S6Open ↗
08/16/2026B01258457-S5Open ↗
▸DOB NOWSOIL REPORT2
08/16/2026B01258457-S6Open ↗
08/16/2026B01258457-S5Open ↗
▸Other Documents3
▸DOB NOWSite Survey: Initial1
08/13/2026B01258457-I1Open ↗
▸DOB NOWLocal Law 92/94 of 2019 Sustainable Roof Zone1
08/13/2026B01258457-I1Open ↗
▸DOB NOWProperty Ownership Certification1
08/13/2026B01258457-I1Open ↗