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Four families
748 52 STREET
BROOKLYN · BIN 3014087
💬 Discuss this project
1909Year Built
2Stories
C3Building Class
R6BZoning
2,370 sfGross Floor Area
4Units
Rent Stabilized1 Open Violation ▸FDNY Report ↗
Four families · 2,003 sf lot · 1.18 FAR built · Flood zone X
Locations of Work
Structural
Roof2p · 1 filing · 20 docs
Floor 41p · 1 filing · 20 docs
Floor 3
Floor 21p · 1 filing · 20 docs
Floor 1
Cellar1p · 1 filing · 20 docs
1 job · most recent 07/03/2026
Steel Concrete Masonry
FiledStatusContractorScope
07/03/2026——Steel, Concrete, Masonry
Building Lifecycle
All (50)Filed (5)Violation (7)Objection (8)Special Inspection (30)
07/16/2026
Objection raised — Other
07/08/2026
Objection resolved — Addressed
07/08/2026
Objection resolved — Addressed
07/03/2026
Filed — ALT-CO - New Building with Existing Elements to Remain
CONVERTING AN EXISTING 2 FAMILY, 2 STORY BUILDING INTO A MIXED USE 4 STORY BUILDING WITH A COMMUNITY FACILITY AND 2 FAMILY DWELLING UNITS.
B01296629-S5
07/03/2026
Special inspection requirement — Subsurface Investigations (Borings/Test Pits)
07/03/2026
Special inspection requirement — Subgrade Inspections
07/03/2026
Special inspection requirement — Structural Stability – Alterations of existing buildings
07/03/2026
Special inspection requirement — Concrete - Cast-In-Place
07/03/2026
Special inspection requirement — Underpinning
06/30/2026
Special inspection requirement — Footing and Foundation
06/30/2026
Special inspection requirement — Final
06/25/2026
Objection resolved — Addressed
06/22/2026
Objection raised — Scope
06/17/2026
Objection raised — Scope
06/12/2026
Objection raised — Scope
06/12/2026
Objection raised — Cost
05/29/2026
Filed — ALT-CO - New Building with Existing Elements to Remain
CONVERTING AN EXISTING 2 FAMILY, 2 STORY BUILDING INTO A MIXED USE 4 STORY BUILDING WITH A COMMUNITY FACILITY AND 2 FAMILY DWELLING UNITS.
B01296629-S3
05/19/2026
Filed — ALT-CO - New Building with Existing Elements to Remain
CONVERTING AN EXISTING 2 FAMILY, 2 STORY BUILDING INTO A MIXED USE 4 STORY BUILDING WITH A COMMUNITY FACILITY AND 2 FAMILY DWELLING UNITS.
B01296629-S2
05/15/2026
Filed — ALT-CO - New Building with Existing Elements to Remain
CONVERTING AN EXISTING 2 FAMILY, 2 STORY BUILDING INTO A MIXED USE 4 STORY BUILDING WITH A COMMUNITY FACILITY AND 2 FAMILY DWELLING UNITS.
B01296629-S4
05/15/2026
Special inspection requirement — Concrete - Cast-In-Place
05/15/2026
Special inspection requirement — Sprayed fire-resistant materials
05/15/2026
Special inspection requirement — Structural Steel - Welding
05/15/2026
Special inspection requirement — Structural Steel - High Strength Bolting
05/13/2026
Special inspection requirement — Structural Steel - Details
05/13/2026
Special inspection requirement — Masonry
05/13/2026
Special inspection requirement — Subsurface Investigations (Borings/Test Pits)
05/13/2026
Special inspection requirement — Concrete - Cast-In-Place
05/13/2026
Special inspection requirement — Subgrade Inspections
05/01/2026
Violation issued (HPD, open)
A
03/18/2026
Special inspection requirement — Fenestration areas
03/18/2026
Special inspection requirement — Final
03/18/2026
Special inspection requirement — Fenestration and door U-factor and product ratings
03/18/2026
Special inspection requirement — Air barrier - visual inspection
03/18/2026
Special inspection requirement — Fenestration air leakage
03/18/2026
Special inspection requirement — Insulation placement and R values
03/18/2026
Special inspection requirement — Final
03/18/2026
Special inspection requirement — Footing and Foundation
12/17/2025
Special inspection requirement — Metering
12/17/2025
Special inspection requirement — Lighting in dwelling units
12/17/2025
Special inspection requirement — Maintenance information
12/17/2025
Special inspection requirement — Sprayed fire-resistant materials
12/17/2025
Special inspection requirement — Masonry
12/17/2025
Special inspection requirement — Lighting controls
10/08/2025
Filed — ALT-CO - New Building with Existing Elements to Remain
CONVERTING AN EXISTING 2 FAMILY, 2 STORY BUILDING INTO A MIXED USE 4 STORY BUILDING WITH A COMMUNITY FACILITY AND 2 FAMILY DWELLING UNITS.
B01296629-I1
06/06/2025
Violation issued (HPD, closed)
A
11/27/2024
Violation issued (HPD, closed)
I
04/08/2024
Violation issued (HPD, closed)
A
03/20/2023
Violation issued (HPD, closed)
A
02/22/2022
Violation issued (HPD, closed)
A
02/06/2015
Violation issued (HPD, closed)
I
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
03/30/2016$980K—— → —$414/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
CITY BUILDING NY ARCHITECT P.C.507/03/2026
Nothing on file for this building.
▾Special Inspection Requirements (DOB NOW) — 42
DateRequirementInspectorRole
07/03/2026Subsurface Investigations (Borings/Test Pits)—special
07/03/2026Subgrade Inspections—special
07/03/2026Structural Stability – Alterations of existing buildings—special
07/03/2026Concrete - Cast-In-Place—special
07/03/2026Underpinning—special
06/30/2026Footing and Foundation—progress
06/30/2026Final—progress
05/15/2026Concrete - Cast-In-Place—special
05/15/2026Sprayed fire-resistant materials—special
05/15/2026Structural Steel - Welding—special
05/15/2026Structural Steel - High Strength Bolting—special
05/13/2026Structural Steel - Details—special
05/13/2026Masonry—special
05/13/2026Subsurface Investigations (Borings/Test Pits)—special
05/13/2026Concrete - Cast-In-Place—special
05/13/2026Subgrade Inspections—special
03/18/2026Fenestration areas—energy_progress
03/18/2026Final—progress
03/18/2026Fenestration and door U-factor and product ratings—energy_progress
03/18/2026Air barrier - visual inspection—energy_progress
03/18/2026Fenestration air leakage—energy_progress
03/18/2026Insulation placement and R values—energy_progress
03/18/2026Final—progress
03/18/2026Footing and Foundation—progress
12/17/2025Metering—energy_progress
Latest 25 of 42.
▾Documents — 19 on file (BIS + DOB NOW)
▸Plans & Drawings5
▸DOB NOWPlans/Sketch5
08/16/2026B01296629-I1Request digital key ↗
08/16/2026B01296629-S4Request digital key ↗
08/16/2026B01296629-S2Request digital key ↗
Showing 3 of 5 on file for this type
▸Zoning, Tax Lot & Property Records2
▸DOB NOWZD1: DOB Zoning Diagram2
08/20/2026B01296629-I1Open ↗
08/16/2026B01296629-I1Open ↗
▸Seals & Professional Certifications5
▸DOB NOWDPL-1: Design Professional Seal & Signature5
08/16/2026B01296629-S3Open ↗
08/16/2026B01296629-I1Open ↗
08/16/2026B01296629-S5Open ↗
Showing 3 of 5 on file for this type
▸Safety & Tenant Protection1
▸DOB NOWStreet Tree Sign Off1
08/14/2026B01296629-S3Open ↗
▸Inspections & Test Reports3
▸DOB NOWTR4 Test Report and Plot Diagram2
08/16/2026B01296629-S2Open ↗
08/16/2026B01296629-S4Open ↗
▸DOB NOWSOIL REPORT1
08/16/2026B01296629-S4Open ↗
▸Other Documents3
▸DOB NOWSite Survey: Initial1
08/14/2026B01296629-S3Open ↗
▸DOB NOWLocal Law 92/94 of 2019 Sustainable Roof Zone1
08/14/2026B01296629-S3Open ↗
▸DOB NOWProperty Ownership Certification1
08/16/2026B01296629-I1Open ↗