Locations of Work

ArchitectureStructuralFire Protection

Permit Issued — active, not yet Signed-off

Roof1p · 1 filing · 13 docs

Floor 3Under Construction1p · 2 filings · 17 docs

Floor 2Under Construction1 filing · 4 docs

Floor 1Under Construction1 filing · 4 docs

CellarUnder Construction2p · 2 filings · 17 docs

1 job · most recent 07/20/2026

Sprinkler System

Filed	Status	Contractor	Scope
07/20/2026	—	—	Sprinkler System

1 job · most recent 07/20/2026

Steel

Filed	Status	Contractor	Scope
07/20/2026	—	—	Steel

Building Lifecycle

All (34)Filed (3)Permit Issued (2)Violation (4)Objection (22)Special Inspection (3)

08/13/2026

Objection resolved — Resolved

08/13/2026

Objection resolved — Resolved

08/13/2026

Objection resolved — Resolved

08/12/2026

Objection resolved — Resolved

08/12/2026

Objection resolved — Resolved

08/12/2026

Objection resolved — Resolved

08/12/2026

Objection resolved — Resolved

08/12/2026

Objection resolved — Resolved

08/12/2026

Objection resolved — Resolved

08/12/2026

Objection resolved — Resolved

08/12/2026

Objection resolved — Resolved

07/23/2026

Permit issued — General Construction

B01389734-I1-GC

07/20/2026

Filed — Alteration CO

VERTICAL ENLARGEMENT AND INTERIOR RENOVATION OF AN EXISTING 1 FAMILY DWELLING (PARTIAL 3 STORY FRONT AND 2 STORY REAR) TO A FULL 3 STORY AND CELLAR 1 FAMILY DWELLING.AS PER PLANS SHOWN.OBTAIN NEW C.O.F.

B01421683-S1

07/17/2026

Special inspection requirement — Sprinkler Systems

07/17/2026

Special inspection requirement — Fire-Resistant Penetrations and Joints

07/08/2026

Objection raised — Scope

07/07/2026

Objection raised — Admin

07/07/2026

Objection raised — Accessibility

07/07/2026

Objection raised — Structural

07/07/2026

Objection raised — Admin

07/07/2026

Objection raised — Fire_Protection

07/07/2026

Objection raised — Fire_Protection

07/07/2026

Objection raised — Structural

07/07/2026

Objection raised — Scope

07/07/2026

Objection raised — Scope

07/02/2026

Objection raised — Scope

06/26/2026

Filed — Alteration CO

VERTICAL ENLARGEMENT AND INTERIOR RENOVATION OF AN EXISTING 1 FAMILY DWELLING (PARTIAL 3 STORY FRONT AND 2 STORY REAR) TO A FULL 3 STORY AND CELLAR 1 FAMILY DWELLING.AS PER PLANS SHOWN.OBTAIN NEW C.O.F.

B01421683-I1

05/07/2026

Permit issued — General Construction

B01389734-I1-GC

04/22/2026

Filed — Alteration

B01389734-I1

04/22/2026

Special inspection requirement — Energy Code Compliance Inspections

CALVIN TRAN

10/10/2008

Violation issued (ECB, closed)

Construction

10/28/2005

Violation issued (ECB, open)

Construction

08/31/2005

Violation issued (ECB, open)

Construction

03/29/2003

Violation issued (ECB, open)

HPD

▾Owner History (Filing Record)

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

Owner	Filings	Most Recent
MNB DEVELOPERS	3	09/13/2026

▾Sales History (ACRIS)

Date	Price	Unit	Seller → Buyer	$/sf
11/19/2025	$975K	—	Private party → BH WINTHROP ST LLC	$451/sf building

▾Design Consultants (Architect / Engineer of Record)

Firm	Filings	Most Recent
CQ&J CORPORATION	2	07/20/2026
THOMAS C. TUNG, P.E.	1	06/26/2026

▾Contractors (License-Anchored)

Firm	Trade	Roles	Most Recent
BUILT NYG INC	General Contractor	1	07/08/2026
TRISTAR DEVELOPING INC	General Contractor	1	07/25/2026

Permit / Filing Register

Source	Work Type	Status	Applicant	Issued
DOB NOW	General Construction	Permit Issued	TRISTAR DEVELOPING INC	07/23/2026
DOB NOW	General Construction	Permit Issued	BUILT NYG INC	05/07/2026

▾Special Inspection Requirements (DOB NOW) — 3

Date	Requirement	Inspector	Role
07/17/2026	Sprinkler Systems	—	special
07/17/2026	Fire-Resistant Penetrations and Joints	—	special
04/22/2026	Energy Code Compliance Inspections	CALVIN TRAN	progress

▾Documents — 17 on file (BIS + DOB NOW)

▸Plans & Drawings3

▸DOB NOWPlans/Sketch3

09/03/2026B01389734-I1Request digital key ↗

08/16/2026B01421683-I1Request digital key ↗

08/16/2026B01421683-S1Request digital key ↗

▸Zoning, Tax Lot & Property Records2

▸DOB NOWZD1: DOB Zoning Diagram1

08/16/2026B01421683-I1Open ↗

▸DOB NOWHouse Number Verification: TOPO Stamp1

08/16/2026B01421683-I1Open ↗

▸Seals & Professional Certifications4

▸DOB NOWDPL-1: Design Professional Seal & Signature3

09/03/2026B01389734-I1Open ↗

08/16/2026B01421683-I1Open ↗

08/16/2026B01421683-S1Open ↗

▸DOB NOWProgress Inspector Seal & Signature1

09/02/2026B01389734-I1Open ↗

▸Safety & Tenant Protection1

▸DOB NOWStreet Tree Checklist1

08/16/2026B01421683-I1Open ↗

▸Environmental & Asbestos3

▸DOB NOWDEP ACP-5: Asbestos Assessment Report3

09/03/2026B01389734-I1Open ↗

08/16/2026B01421683-S1Open ↗

08/16/2026B01421683-I1Open ↗

▸Other Documents4

▸DOB NOWPlot Diagram1

08/16/2026B01421683-I1Open ↗

▸DOB NOWProperty Ownership Certification1

08/16/2026B01421683-I1Open ↗

▸DOB NOWSite Survey: Initial1

08/16/2026B01421683-I1Open ↗

▸DOB NOWLocal Law 92/94 of 2019 Sustainable Roof Zone1

08/16/2026B01421683-I1Open ↗