Locations of Work

ArchitectureStructuralGeneralOther

Names shown beside floors are taken automatically from the text of filed documents and may be incomplete or wrong.

Permit Issued — active, not yet Signed-off

RoofNYC School Construction Authority2 filings · 20 docs

Floor 4NYC School Construction Authority2 filings · 20 docs

Floor 3NYC School Construction Authority2 filings · 20 docs

Floor 2NYC School Construction Authority3 filings · 20 docs

Floor 1NYC School Construction Authority3 filings · 20 docs

CellarNYC School Construction Authority2 filings · 20 docs

Site & exteriorSupport of excavationUnder Construction30p · 5 filings · 18 docs

Filed — no permit issued1 filing

▾Owner History (Filing Record)

Companies and organizations named on filings. Individual owners are not shown.

Owner	Filings	Most Recent
NYC School Construction	32	10/10/2026

▾Sales History (ACRIS)

Date	Price	Unit	Seller → Buyer	$/sf
02/07/2024	$81.8M	—	4509 EIGHTH LLC → New York City School Construction Authority	— not available
07/30/2018	$50.0M	—	— → —	— not available

▾Design Consultants (Architect / Engineer of Record)

Firm	Filings	Most Recent
Langan Engineering	10	10/06/2026
Tarek M. Zeid, PE	2	09/10/2026
NYC School Construction Authority	13	08/11/2026
D.P. Consulting	2	04/11/2025
Christopher Ruano-Salguero	2	01/16/2025
Associates	1	02/07/2020

▾Filing Representatives (Expediters)

Representative	Filings	Most Recent
NYC School Construction Authority	20	03/21/2026

▾Contractors (License-Anchored)

Firm	Trade	Roles	Most Recent
B Sosa Enterprises	Scaffold	7	07/08/2026
Darcon Construction	General Contractor	2	07/08/2026
Darcon Construction	Scaffold	2	03/21/2026
MPCC	Scaffold	2	07/16/2026
National Enviromental Safety	Scaffold	2	03/21/2026
MPCC	General Contractor	1	08/27/2026

▾Special Inspection Agencies

Agency	License #	Filings	Most Recent
Universal Testing and Ins	400	19	10/06/2026

Building Lifecycle

All (115)Filed (30)Permit Issued (10)Violation (4)Objection (41)Special Inspection (30)

10/19/2026

Objection resolved — Resolved

10/16/2026

Objection raised — Other

10/06/2026

Filed — Alteration

SOE for New school Q512

Q01209315-P3

10/06/2026

Special inspection requirement — Subsurface Conditions – Fill Placement & In-Place Density

NELSON LOPEZ

10/06/2026

Special inspection requirement — Structural Steel - Welding

NELSON LOPEZ

10/06/2026

Special inspection requirement — Structural Steel - Details

NELSON LOPEZ

10/06/2026

Special inspection requirement — Concrete - Cast-In-Place

NELSON LOPEZ

10/06/2026

Special inspection requirement — Footing and Foundation

NELSON LOPEZ

10/06/2026

Special inspection requirement — Structural Stability – Alterations of existing buildings

NELSON LOPEZ

10/06/2026

Special inspection requirement — Excavations - Sheeting, Shoring, and Bracing

NELSON LOPEZ

09/10/2026

Filed — Alteration

Q01458086-I1

08/26/2026

Permit issued — Support of Excavation

Q01209315-I1-SE

08/21/2026

Special inspection requirement — Deep Foundation Elements

NELSON LOPEZ

08/21/2026

Special inspection requirement — Post-installed Anchors

NELSON LOPEZ

08/21/2026

Special inspection requirement — Concrete - Cast-In-Place

NELSON LOPEZ

08/21/2026

Special inspection requirement — Footing and Foundation

NELSON LOPEZ

08/21/2026

Special inspection requirement — Subsurface Conditions – Fill Placement & In-Place Density

NELSON LOPEZ

08/21/2026

Special inspection requirement — Final

NELSON LOPEZ

08/21/2026

Special inspection requirement — Subgrade Inspections

NELSON LOPEZ

08/17/2026

Objection raised — Other

08/14/2026

Objection raised — Other

08/14/2026

Objection resolved — Resolved

08/11/2026

Filed — New Building

The work depicted herein is for the construction of a new 26,578 sf school building with green roof and associated retaining walls, pavement, play area, landscaping, and the installation of new utilities.

Q01092618-P5

08/11/2026

Special inspection requirement — Subsurface Conditions – Fill Placement & In-Place Density

NELSON LOPEZ

08/11/2026

Special inspection requirement — Structural Steel - Details

NELSON LOPEZ

08/11/2026

Special inspection requirement — Structural Stability – Alterations of existing buildings

NELSON LOPEZ

08/11/2026

Special inspection requirement — Concrete - Cast-In-Place

NELSON LOPEZ

08/11/2026

Special inspection requirement — Excavations - Sheeting, Shoring, and Bracing

NELSON LOPEZ

08/11/2026

Special inspection requirement — Structural Steel - Welding

NELSON LOPEZ

08/11/2026

Special inspection requirement — Footing and Foundation

NELSON LOPEZ

08/07/2026

Filed — New Building

The work depicted herein is for the construction of a new 26,578 sf school building with green roof and associated retaining walls, pavement, play area, landscaping, and the installation of new utilities.

Q01092618-P4

08/07/2026

Special inspection requirement — Deep Foundation Elements

NELSON LOPEZ

08/07/2026

Special inspection requirement — Post-installed Anchors

NELSON LOPEZ

08/07/2026

Special inspection requirement — Subgrade Inspections

NELSON LOPEZ

08/07/2026

Special inspection requirement — Final

NELSON LOPEZ

08/07/2026

Special inspection requirement — Footing and Foundation

NELSON LOPEZ

08/07/2026

Special inspection requirement — Subsurface Conditions – Fill Placement & In-Place Density

NELSON LOPEZ

08/07/2026

Special inspection requirement — Concrete - Cast-In-Place

NELSON LOPEZ

08/04/2026

Special inspection requirement — Standpipe Systems

NELSON LOPEZ

08/04/2026

Special inspection requirement — Sprinkler Systems

NELSON LOPEZ

07/28/2026

Objection resolved — Addressed

07/15/2026

Permit issued — Construction Fence

Q01383273-I1-FN

07/07/2026

Objection raised — Other

07/01/2026

Filed — Alteration

SOE for New school Q512

Q01209315-P1

06/30/2026

Permit issued — Construction Fence

Q01383273-I1-FN

05/13/2026

Objection raised — Other

05/13/2026

Objection resolved — Addressed

05/07/2026

Filed — New Building

The work depicted herein is for the construction of a new 26,578 sf school building with green roof and associated retaining walls, pavement, play area, landscaping, and the installation of new utilities.

Q01092618-P3

04/07/2026

Objection raised — Other

04/06/2026

Filed — Alteration

Construction Fence in conjunction with 4 story new school building and all related applications.

Q01383273-I1

02/21/2026

Violation issued (ECB, closed)

Construction

11/24/2025

Permit issued — Foundation

Q01095485-I1-FO

11/10/2025

Permit issued — Support of Excavation

Q01277426-I1-SE

09/26/2025

Objection resolved — Addressed

09/15/2025

Objection resolved — Addressed

09/03/2025

Objection raised — Other

08/26/2025

Filed — Alteration

THE WORK DEPICTED HEREIN IS FOR THE TEMPORARY SUPPORT OF EXCAVATION (SOE) FOR EXCAVATIONS 5 FT OR GREATER INDEPTH TO ALLOW FOR THE CONSTRUCTION OF PERIMETER BARRIER WALL AT 137-23 45TH AVENUE, QUEENS, NEW YORK.

Q01277426-I1

08/12/2025

Objection raised — Other

08/07/2025

Filed — New Building

The work depicted herein is for the construction of a new 26,578 sf school building with green roof and associated retaining walls, pavement, play area, landscaping, and the installation of new utilities.

Q01092618-P1

08/04/2025

Filed — Alteration

CONSTRUCTION OF PERIMETER BARRIER WALLS INCLUDE INSTALLATION OF DRILLED PIERS AND LOCAL EXCAVATION BETWEEN THE DRILLED PIERS TO INSTALL A PRECAST PIER AND PANEL. THE ANTICIPATED AREA OF GROUND DISTURBANCE IS ABOUT 19,865 SQUARE FEET.

Q01095485-P1

Latest 60 of 115 events.

Permit / Filing Register

Source	Work Type	Status	Applicant	Issued
DOB NOW	Support of Excavation	Permit Issued	MPCC	08/26/2026
DOB NOW	Construction Fence	Permit Issued	MPCC	07/15/2026
DOB NOW	Construction Fence	Permit Issued	MPCC	06/30/2026
DOB NOW	Foundation	Permit Issued	Darcon Construction	11/24/2025
DOB NOW	Support of Excavation	Permit Issued	Darcon Construction	11/10/2025
DOB NOW	Construction Fence	Permit Issued	Darcon Construction	06/11/2025
DOB NOW	Construction Fence	Permit Issued	National Enviromental Saf	08/29/2024
DOB NOW	Construction Fence	Permit Issued	B Sosa Enterprises	02/01/2022
DOB NOW	Construction Fence	Permit Issued	B Sosa Enterprises	10/13/2021
DOB NOW	Construction Fence	Permit Issued	B Sosa Enterprises	02/11/2020

2 projects · most recent 08/11/2026

Others Generators

Filed	Status	Contractor	Scope	Make / Model / Capacity
08/11/2026	—	—	Generators, Others	Generators Caterpillar C9 PGS 300 300 kW · Generator ×1 Other Obar Systems OBAR GBR89 150 CFM ×3
04/11/2025	—	—	Others	Other Obar Systems OBAR GBR89 150 CFM ×3

1 project · most recent 08/11/2026

Sprinkler System

Filed	Status	Contractor	Scope
08/11/2026	—	—	Sprinkler System

4 projects · most recent 10/06/2026

Steel Concrete

Filed	Status	Contractor	Scope
10/06/2026	Permit Issued	MPCC	1 scope_items
08/11/2026	—	—	Steel, Concrete
08/26/2025	Permit Issued	Darcon Construction	1 scope_items
08/04/2025	Permit Issued	Darcon Construction	4 scope_items

1 project · most recent 02/07/2020

Fence

Filed	Status	Contractor	Scope
02/07/2020	Permit Issued	Darcon Construction	Fence

▾Special Inspection Requirements (DOB NOW) — 150

Date	Requirement	Inspector	Role
10/06/2026	Footing and Foundation	NELSON LOPEZ	progress
10/06/2026	Concrete - Cast-In-Place	NELSON LOPEZ	special
10/06/2026	Excavations - Sheeting, Shoring, and Bracing	NELSON LOPEZ	special
10/06/2026	Structural Stability – Alterations of existing buildings	NELSON LOPEZ	special
10/06/2026	Structural Steel - Details	NELSON LOPEZ	special
10/06/2026	Structural Steel - Welding	NELSON LOPEZ	special
10/06/2026	Subsurface Conditions – Fill Placement & In-Place Density	NELSON LOPEZ	special
08/21/2026	Subsurface Conditions – Fill Placement & In-Place Density	NELSON LOPEZ	special
08/21/2026	Final	NELSON LOPEZ	progress
08/21/2026	Footing and Foundation	NELSON LOPEZ	progress
08/21/2026	Deep Foundation Elements	NELSON LOPEZ	special
08/21/2026	Post-installed Anchors	NELSON LOPEZ	special
08/21/2026	Concrete - Cast-In-Place	NELSON LOPEZ	special
08/21/2026	Subgrade Inspections	NELSON LOPEZ	special
08/11/2026	Subsurface Conditions – Fill Placement & In-Place Density	NELSON LOPEZ	special
08/11/2026	Footing and Foundation	NELSON LOPEZ	progress
08/11/2026	Structural Steel - Welding	NELSON LOPEZ	special
08/11/2026	Excavations - Sheeting, Shoring, and Bracing	NELSON LOPEZ	special
08/11/2026	Concrete - Cast-In-Place	NELSON LOPEZ	special
08/11/2026	Structural Stability – Alterations of existing buildings	NELSON LOPEZ	special
08/11/2026	Structural Steel - Details	NELSON LOPEZ	special
08/07/2026	Final	NELSON LOPEZ	progress
08/07/2026	Concrete - Cast-In-Place	NELSON LOPEZ	special
08/07/2026	Deep Foundation Elements	NELSON LOPEZ	special
08/07/2026	Post-installed Anchors	NELSON LOPEZ	special

Latest 25 of 150.

▾Tenants in the building

Tenant	Space	Floors	Renovation projects
NYC School Construction Authority	Education	Entire building	Project Q01207891 Alteration · Approved · 04/11/2025 Project Q01199509 No Work · Approved · 04/09/2025 Project Q01204240 No Work · Approved · 04/09/2025 Project Q01092618 New Building · Objections · 12/20/2024

Names are taken automatically from the text of each project’s filed documents (title blocks and cover sheets) and screened to exclude owners, landlords and designers. They may be incomplete or wrong; check the filing.

▾Documents — 273 on file (BIS + DOB NOW)

▸Plans & Drawings31

▸DOB NOWPlans/Sketch28

08/20/2026Q01207891-I1Request digital key ↗

08/20/2026Q01209315-I1Request digital key ↗

08/19/2026Q01095485-S1Request digital key ↗

Showing 3 of 28 on file for this type

▸DOB NOWPlans/Sketch - Place of Assembly2

08/20/2026Q01204240-I1Request digital key ↗

08/20/2026Q01199509-I1Request digital key ↗

▸DOB NOWPlans/Sketch - Construction Fence1

08/28/2026Q00310592-I1Request digital key ↗

▸Applications & Permits2

▸DOB NOWDEP Stormwater Construction Permit2

08/15/2026Q01092618-P3Open ↗

Showing 1 of 2 on file for this type

▸Zoning, Tax Lot & Property Records5

▸DOB NOWZD1: DOB Zoning Diagram2

08/15/2026Q01092618-P3Open ↗

08/13/2026Q01092618-I1Open ↗

▸DOB NOWZoning Exhibit form (1-5)2

08/15/2026Q01092618-P3Open ↗

08/13/2026Q01092618-I1Open ↗

▸DOB NOWHouse Number Verification: TOPO Stamp1

08/13/2026Q01092618-I1Open ↗

▸Seals & Professional Certifications87

▸DOB NOWDPL-1: Design Professional Seal & Signature32

10/08/2026Q01209315-P3Open ↗

08/20/2026Q01199509-I1Open ↗

08/20/2026Q01207891-I1Open ↗

Showing 3 of 32 on file for this type

▸DOB NOWSpecial Inspector Seal & Signature31

10/08/2026Q01209315-P3Open ↗

09/02/2026Q01092618-Z8Open ↗

09/02/2026Q01092618-Z4Open ↗

Showing 3 of 31 on file for this type

▸DOB NOWProgress Inspector Seal & Signature24

10/08/2026Q01209315-P3Open ↗

09/02/2026Q01092618-Z8Open ↗

09/02/2026Q01092618-Z4Open ↗

Showing 3 of 24 on file for this type

▸Trade Schedules & Equipment4

▸DOB NOWDEP: Sewer Certification (Sanitary/Storm)4

On file, but not among the 200 most recently loaded documents for this source.

Showing 0 of 4 on file for this type

▸Safety & Tenant Protection8

▸DOB NOWStreet Tree Checklist6

08/15/2026Q01092618-P3Open ↗

08/13/2026Q01092618-Y6Open ↗

08/13/2026Q01092618-I1Open ↗

Showing 3 of 6 on file for this type

▸DOB NOWNYCSCA - Approved Site Safety Plans1

08/17/2026Q01383273-I1Open ↗

▸DOB NOWParks Department Acknowledgment Letter for Street Trees Plan1

08/16/2026Q01092618-I1Open ↗

▸Environmental & Asbestos28

▸DOB NOWOER: Notice to Proceed21

08/20/2026Q01209315-I1Open ↗

08/16/2026Q01092618-Y2Open ↗

08/16/2026Q01092618-Y1Open ↗

Showing 3 of 21 on file for this type

▸DOB NOWOER: Notice of Satisfaction5

08/20/2026Q01209315-I1Open ↗

08/15/2026Q01209315-P1Open ↗

08/14/2026Q01095485-I1Open ↗

Showing 3 of 5 on file for this type

▸DOB NOWDEP ACP-5: Asbestos Assessment Report2

08/14/2026Q01095485-I1Open ↗

08/14/2026Q01095485-P1Open ↗

▸Inspections & Test Reports1

▸DOB NOWTR5 Test Report1

08/14/2026Q01095485-I1Open ↗

▸Approvals, Objections & Sign-offs59

▸DOB NOWFee Exempt Supporting Document - DOF ACRIS report or BIB letter31

10/08/2026Q01209315-P3Open ↗

08/20/2026Q01209315-I1Open ↗

08/19/2026Q01095485-S1Open ↗

Showing 3 of 31 on file for this type

▸DOB NOWDesign Commission Approval City Owned (Exterior Work)28

10/08/2026Q01209315-P3Open ↗

08/17/2026Q01383273-I1Open ↗

08/16/2026Q01092618-P5Open ↗

Showing 3 of 28 on file for this type

▸Other Documents48

▸DOB NOWNYCSCA - BCC Plan Examination Transmittal31

10/08/2026Q01209315-P3Open ↗

08/17/2026Q01383273-I1Open ↗

08/16/2026Q01092618-P5Open ↗

Showing 3 of 31 on file for this type

▸DOB NOWLocal Law 92/94 of 2019 Sustainable Roof Zone6

08/15/2026Q01092618-P3Open ↗

Showing 1 of 6 on file for this type

▸DOB NOWSite Survey: Initial6

08/15/2026Q01092618-P3Open ↗

08/13/2026Q01092618-Y9Open ↗

08/13/2026Q01092618-Y6Open ↗

Showing 3 of 6 on file for this type

▸DOB NOWProperty Ownership Certification2

08/16/2026Q01092618-I1Open ↗

08/15/2026Q01092618-P3Open ↗

▸DOB NOWAdjoining Owners Notification2

08/20/2026Q01209315-I1Open ↗

08/13/2026Q01277426-I1Open ↗

▸DOB NOWAlternate Plan 11

08/20/2026Q01199509-I1Open ↗