Locations of Work

ArchitectureStructuralMechanicalPlumbing

Roof2p · 2 filings · 20 docs

Bulkhead1p · 1 filing · 8 docs

Floor 22p · 1 filing · 20 docs

Floor 11p · 1 filing · 6 docs

Cellar4p · 3 filings · 20 docs

Basement3p · 2 filings · 20 docs

▾Owner History (Filing Record)

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

Owner	Filings	Most Recent
TOPLINE NYC CONTRACTING	4	03/22/2026
437 SACKETT	4	03/21/2026

▾Sales History (ACRIS)

Date	Price	Unit	Seller → Buyer	$/sf
04/20/2023	$2.0M	—	Private party → 437 SACKETT LLC	— not available

▾Design Consultants (Architect / Engineer of Record)

Firm	Filings	Most Recent
HPL ENGINEERING P.C.	12	09/19/2024
AKM RAHMAN	2	02/01/2024
JIAN ENGINEERING PLLC	4	08/21/2023

▾Filing Representatives (Expediters)

Representative	Filings	Most Recent
ADVANCED BUILDERS SERVICES	2	03/21/2026
SD DESIGN STUDIO	30	03/21/2026

▾Contractors (License-Anchored)

Firm	Trade	Roles	Most Recent
JRL SKYLINE INC	General Contractor	9	07/08/2026
TOPLINE NYC INC	General Contractor	4	07/08/2026
MEGA GENERAL CONSTRUCTION	General Contractor	3	03/21/2026
TOPLINE NYC CONTRACTING	General Contractor	3	03/21/2026
CONSTRUCTION MNGT. AA,LLC	General Contractor	1	07/08/2026
QMB PLUMBING & HEATING INC	Plumbing	1	07/08/2026

▾Special Inspection Agencies

Agency	License #	Filings	Most Recent
HPL ENGINEERING PC	5613	14	09/19/2024

Building Lifecycle

All (142)Filed (18)Permit Issued (12)Signed Off (9)Inspection (5)Objection (68)Special Inspection (30)

11/01/2024

Signed off — Alteration

PROPOSED MECHANICAL WORK ON CELLAR, BASEMENT, 1ST TO 2ND FLOOR, & STAIR BULKHEAD ROOF. IN CONJUNCTION WITH DOB NOW GC JOB NO:B00865279 AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY.

B00865279-S1

09/25/2024

Signed off — Alteration

PROPOSED MECHANICAL WORK ON CELLAR, BASEMENT, 1ST TO 2ND FLOOR, & STAIR BULKHEAD ROOF. IN CONJUNCTION WITH DOB NOW GC JOB NO:B00865279 AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY.

B00865279-I1

09/24/2024

Special inspection requirement — Fire-Resistant Penetrations and Joints

Fran Huang

09/24/2024

Special inspection requirement — Energy Code Compliance Inspections

Fran Huang

09/24/2024

Special inspection requirement — Maintenance information

Fran Huang

09/24/2024

Special inspection requirement — HVAC-R and service water piping design and insulation

Fran Huang

09/24/2024

Special inspection requirement — HVAC-R and service water heating equipment

Fran Huang

09/24/2024

Special inspection requirement — HVAC-R and service water heating system controls

Fran Huang

09/19/2024

Filed — Alteration

PROPOSED MECHANICAL WORK ON CELLAR, BASEMENT, 1ST TO 2ND FLOOR, & STAIR BULKHEAD ROOF. IN CONJUNCTION WITH DOB NOW GC JOB NO:B00865279 AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY.

B00865279-P6

09/19/2024

Signed off — Alteration

A PROPOSED FOUNDATION CONSTRUCTION FILING IN CONJUNCTION WITH JOB #: B00865279-I1.

B00916351-I1

09/19/2024

Signed off — Alteration

A PROPOSED STRUCTURAL CONSTRUCTION FILING IN CONJUNCTION WITH GENERAL CONSTRUCTION JOB #: B00865279-I1.

B00916356-I1

09/18/2024

Signed off — Alteration

A PROPOSED SOE CONSTRUCTION IN CONJUNCTION WITH FILING JOB #: B00916357-I1.

B00916357-I1

09/18/2024

Signed off — Alteration

PROPOSED MECHANICAL WORK ON CELLAR, BASEMENT, 1ST TO 2ND FLOOR, & STAIR BULKHEAD ROOF. IN CONJUNCTION WITH DOB NOW GC JOB NO:B00865279 AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY.

B00865279-S4

09/16/2024

Special inspection requirement — HVAC-R and service water piping design and insulation

Fran Huang

09/16/2024

Special inspection requirement — Maintenance information

Fran Huang

09/16/2024

Special inspection requirement — Fire-Resistant Penetrations and Joints

Fran Huang

09/16/2024

Special inspection requirement — HVAC-R and service water heating system controls

Fran Huang

09/16/2024

Special inspection requirement — Energy Code Compliance Inspections

Fran Huang

09/16/2024

Special inspection requirement — HVAC-R and service water heating equipment

Fran Huang

09/03/2024

Special inspection requirement — Structural Stability – Alterations of existing buildings

Fran Huang

09/03/2024

Special inspection requirement — Maintenance information

Fran Huang

09/03/2024

Special inspection requirement — Final

Fran Huang

09/03/2024

Special inspection requirement — HVAC-R and service water heating system controls

Fran Huang

09/03/2024

Special inspection requirement — HVAC-R and service water heating equipment

Fran Huang

09/03/2024

Special inspection requirement — Energy Code Compliance Inspections

Fran Huang

09/03/2024

Special inspection requirement — Fire-Resistant Penetrations and Joints

Fran Huang

09/03/2024

Special inspection requirement — Mechanical Systems

Fran Huang

09/03/2024

Special inspection requirement — Heating Systems

Fran Huang

09/03/2024

Special inspection requirement — HVAC-R and service water piping design and insulation

Fran Huang

08/30/2024

Signed off — Alteration

PROPOSED MECHANICAL WORK ON CELLAR, BASEMENT, 1ST TO 2ND FLOOR, & STAIR BULKHEAD ROOF. IN CONJUNCTION WITH DOB NOW GC JOB NO:B00865279 AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY.

B00865279-S3

08/28/2024

Filed — Alteration

PROPOSED MECHANICAL WORK ON CELLAR, BASEMENT, 1ST TO 2ND FLOOR, & STAIR BULKHEAD ROOF. IN CONJUNCTION WITH DOB NOW GC JOB NO:B00865279 AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY.

B00865279-P3

08/23/2024

Objection resolved — Addressed

08/23/2024

Special inspection requirement — Energy Code Compliance Inspections

Fran Huang

08/23/2024

Special inspection requirement — Construction Operations Influencing Adjacent Structures

Fran Huang

08/23/2024

Special inspection requirement — Fire-Resistance Rated Construction

Fran Huang

08/23/2024

Special inspection requirement — Concrete - Cast-In-Place

Fran Huang

08/23/2024

Special inspection requirement — Fire-Resistant Penetrations and Joints

Fran Huang

08/23/2024

Special inspection requirement — Structural Stability – Alterations of existing buildings

Fran Huang

08/23/2024

Special inspection requirement — Permanent certificate

Fran Huang

08/23/2024

Special inspection requirement — Fenestration areas

Fran Huang

08/16/2024

Objection resolved — Addressed

08/16/2024

Objection resolved — Addressed

08/15/2024

Objection raised — Scope

08/15/2024

Objection resolved — Addressed

08/15/2024

Objection raised — Zoning

08/15/2024

Objection raised — Zoning

08/15/2024

Objection raised — Admin

08/09/2024

Filed — Alteration

PROPOSED MECHANICAL WORK ON CELLAR, BASEMENT, 1ST TO 2ND FLOOR, & STAIR BULKHEAD ROOF. IN CONJUNCTION WITH DOB NOW GC JOB NO:B00865279 AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY.

B00865279-P5

08/08/2024

Filed — Alteration

PROPOSED MECHANICAL WORK ON CELLAR, BASEMENT, 1ST TO 2ND FLOOR, & STAIR BULKHEAD ROOF. IN CONJUNCTION WITH DOB NOW GC JOB NO:B00865279 AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY.

B00865279-P4

07/16/2024

Permit issued — General Construction

B00865279-I1-GC

07/12/2024

Permit issued — General Construction

B00865279-I1-GC

06/25/2024

Permit issued — Mechanical Systems

B00865279-S4-MS

06/14/2024

Objection resolved — Addressed

06/14/2024

Objection resolved — Addressed

06/05/2024

Objection resolved — Addressed

06/03/2024

Signed off — Alteration

INSTALLATION OF 300PSF SIDEWALK SHED AS PER PLANS. ALL EQUIPMENT SHALL COMPLY WITH CH #33 OF THE NYC CODE 2022. NO CHANGE IN USE, OCCUPANCY OR EGRESS UNDER THIS APPLICATION.

B00936346-I1

06/03/2024

Signed off — Alteration

B00998498-I1

05/30/2024

Objection raised — Plumbing

05/30/2024

Objection raised — Zoning

05/30/2024

Objection raised — Zoning

Latest 60 of 142 events.

Permit / Filing Register

Source	Work Type	Status	Applicant	Issued
DOB NOW	General Construction	Signed-off	MEGA GENERAL CONSTRUCTION	07/16/2024
DOB NOW	General Construction	Signed-off	CONSTRUCTION MNGT. AA,LLC	07/12/2024
DOB NOW	Mechanical Systems	Signed-off	JRL SKYLINE	06/25/2024
DOB NOW	Supported Scaffold	Signed-off	TOPLINE NYC INC	02/02/2024
DOB NOW	Plumbing	Signed-off	QMB PLUMBING & HEATING INC	01/25/2024
DOB NOW	Sidewalk Shed	Signed-off	TOPLINE NYC INC	12/18/2023
DOB NOW	Sidewalk Shed	Signed-off	TOPLINE NYC CONTRACTING	09/21/2023
DOB NOW	Structural	Signed-off	JRL SKYLINE	08/25/2023
DOB NOW	Support of Excavation	Signed-off	JRL SKYLINE	08/22/2023
DOB NOW	Foundation	Signed-off	JRL SKYLINE	08/17/2023
DOB NOW	Construction Fence	Signed-off	JRL SKYLINE	08/15/2023
DOB NOW	General Construction	Signed-off	JRL SKYLINE	06/28/2023

3 projects · most recent 03/04/2024

General Wiring

Filed	Status	Contractor	Scope
03/04/2024	Complete	CL ELECTRICAL CORP	General Wiring
01/06/2024	Complete	CL ELECTRICAL CORP	—
09/23/2023	Complete	RICHARD NEU	—

▾Field Inspections (DOB CAP) — 5

Date	Type	Result	Report
03/29/2024	Certified Gas-Gas-Piping-Roughing	Certified	View ↗
03/29/2024	Certified Storm Drainage-ST-Piping-Roughing	Certified	View ↗
03/04/2024	Certified Storm Drainage-ST-Piping-Underground	Certified	View ↗
03/04/2024	Certified Water and Sanitary-WS-Sanitary Piping-Underground	Certified	View ↗
02/29/2024	Certified Remove/Cap - work done in accordance with code	Certified	View ↗

▾Special Inspection Requirements (DOB NOW) — 120

Date	Requirement	Inspector	Role
09/24/2024	Fire-Resistant Penetrations and Joints	Fran Huang	special
09/24/2024	HVAC-R and service water heating equipment	Fran Huang	energy_progress
09/24/2024	HVAC-R and service water piping design and insulation	Fran Huang	energy_progress
09/24/2024	Maintenance information	Fran Huang	energy_progress
09/24/2024	HVAC-R and service water heating system controls	Fran Huang	energy_progress
09/24/2024	Energy Code Compliance Inspections	Fran Huang	progress
09/16/2024	HVAC-R and service water piping design and insulation	Fran Huang	energy_progress
09/16/2024	HVAC-R and service water heating system controls	Fran Huang	energy_progress
09/16/2024	Fire-Resistant Penetrations and Joints	Fran Huang	special
09/16/2024	Energy Code Compliance Inspections	Fran Huang	progress
09/16/2024	Maintenance information	Fran Huang	energy_progress
09/16/2024	HVAC-R and service water heating equipment	Fran Huang	energy_progress
09/03/2024	Fire-Resistant Penetrations and Joints	Fran Huang	special
09/03/2024	Structural Stability – Alterations of existing buildings	Fran Huang	special
09/03/2024	Final	Fran Huang	progress
09/03/2024	Energy Code Compliance Inspections	Fran Huang	progress
09/03/2024	Maintenance information	Fran Huang	energy_progress
09/03/2024	HVAC-R and service water heating system controls	Fran Huang	energy_progress
09/03/2024	HVAC-R and service water heating equipment	Fran Huang	energy_progress
09/03/2024	HVAC-R and service water piping design and insulation	Fran Huang	energy_progress
09/03/2024	Mechanical Systems	Fran Huang	special
09/03/2024	Heating Systems	Fran Huang	special
08/23/2024	Fire-Resistance Rated Construction	Fran Huang	progress
08/23/2024	Permanent certificate	Fran Huang	energy_progress
08/23/2024	Fenestration areas	Fran Huang	energy_progress

Latest 25 of 120.

▾Documents — 132 on file (BIS + DOB NOW)

▸Plans & Drawings18

▸DOB NOWPlans/Sketch18

08/27/2026B00865279-P4Request digital key ↗

08/27/2026B00865279-S3Request digital key ↗

08/27/2026B00865279-P1Request digital key ↗

Showing 3 of 18 on file for this type

▸Applications & Permits4

▸BISPLAN - WORK & PERMITS - SUPPPORTING DOCUMENTATION3

06/20/2024322114582Open ↗

▸BISPLAN / WORK APPROVAL APPLICATION1

06/17/2024322114582Open ↗

▸Zoning, Tax Lot & Property Records14

▸DOB NOWZD1: DOB Zoning Diagram5

08/13/2026B00865279-P4Open ↗

08/13/2026B00865279-P1Open ↗

08/13/2026B00865279-I1Open ↗

Showing 3 of 5 on file for this type

▸DOB NOWZoning Exhibit form (1-5)5

08/13/2026B00898967-I1Open ↗

08/13/2026B00865279-P1Open ↗

08/13/2026B00865279-I1Open ↗

Showing 3 of 5 on file for this type

▸DOB NOWRestrictive Declaration/Easement 13

08/13/2026B00865279-P4Open ↗

08/13/2026B00865279-I1Open ↗

08/13/2026B00865279-P2Open ↗

▸BISTAX LOT: TENTATIVE LOT NUMBER ISSUED1

06/20/2024322114582Open ↗

▸Seals & Professional Certifications51

▸DOB NOWProgress Inspector Seal & Signature21

08/28/2026B00916351-I1Open ↗

08/23/2026B00882280-I1Open ↗

Showing 3 of 21 on file for this type

▸DOB NOWDPL-1: Design Professional Seal & Signature18

08/27/2026B00865279-P3Open ↗

08/27/2026B00865279-S3Open ↗

08/27/2026B00865279-P1Open ↗

Showing 3 of 18 on file for this type

▸DOB NOWSpecial Inspector Seal & Signature12

08/28/2026B00916351-I1Open ↗

08/23/2026B00882280-I1Open ↗

Showing 3 of 12 on file for this type

▸Trade Schedules & Equipment4

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

08/13/2026B00865279-P1Open ↗

08/13/2026B00865279-P2Open ↗

08/13/2026B00865279-P4Open ↗

Showing 3 of 4 on file for this type

▸Environmental & Asbestos15

▸DOB NOWDEP ACP-5: Asbestos Assessment Report15

08/27/2026B00865279-S1Open ↗

08/27/2026B00865279-P1Open ↗

08/27/2026B00865279-P2Open ↗

Showing 3 of 15 on file for this type

▸Inspections & Test Reports7

▸DOB NOWGeotechnical Report (BC 1803.6)3

08/13/2026B00898967-I1Open ↗

08/13/2026B00916357-I1Open ↗

08/13/2026B00916351-I1Open ↗

▸DOB NOWTR4 Test Report and Plot Diagram2

08/13/2026B00916351-I1Open ↗

08/13/2026B00898967-I1Open ↗

▸DOB NOWSOIL REPORT2

08/13/2026B00898967-I1Open ↗

08/13/2026B00916351-I1Open ↗

▸Filing & Intake Forms1

▸BISEFILING COVER SHEET1

06/17/2024322114582Open ↗

▸Other Documents18

▸DOB NOWPlot Diagram7

08/13/2026B00916351-I1Open ↗

08/13/2026B00916357-I1Open ↗

08/13/2026B00865279-P4Open ↗

Showing 3 of 7 on file for this type

▸DOB NOWSite Survey: Initial5

08/13/2026B00898967-I1Open ↗

08/13/2026B00865279-P2Open ↗

08/13/2026B00865279-P1Open ↗

Showing 3 of 5 on file for this type

▸DOB NOWLocal Law 92/94 of 2019 Sustainable Roof Zone5

08/13/2026B00865279-I1Open ↗

08/13/2026B00865279-P2Open ↗

08/13/2026B00865279-P1Open ↗

Showing 3 of 5 on file for this type

▸DOB NOWAdjoining Owners Notification1

08/13/2026B00916357-I1Open ↗