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Primarily 4 family with 1 store or office
221 NASSAU AVENUE
BROOKLYN · BIN 3066498
💬 Discuss this project
1919Year Built
3Stories
S4Building Class
R6BZoning
4,725 sfGross Floor Area
5Units
Rent Stabilized16 Open Violations ▸FDNY Report ↗
Primarily 4 family with 1 store or office · 2,125 sf lot · 2.22 FAR built · Flood zone X500
Locations of Work
No floor-level scope or drawing coverage on file for this building.
1 job · most recent 08/03/2026
Water/Sanitary
FiledStatusContractorScope
08/03/2026——Water/Sanitary
1 job · most recent 08/03/2026
Steel Masonry Wood
FiledStatusContractorScope
08/03/2026——Steel, Masonry, Wood
Building Lifecycle
All (114)Filed (4)Violation (35)Objection (48)Special Inspection (27)
08/18/2026
Objection resolved — Addressed
08/18/2026
Objection resolved — Addressed
08/18/2026
Objection resolved — Addressed
08/18/2026
Objection resolved — Addressed
08/18/2026
Objection resolved — Addressed
08/18/2026
Objection resolved — Open
08/18/2026
Objection resolved — Open
08/18/2026
Objection resolved — Addressed
08/10/2026
Special inspection requirement — Structural Wood Frame
08/06/2026
Objection raised — Admin
08/06/2026
Objection raised — Admin
08/06/2026
Objection raised — Admin
08/06/2026
Objection raised — Admin
08/06/2026
Objection raised — Other
08/06/2026
Objection raised — Scope
08/06/2026
Objection raised — Inspections
08/06/2026
Objection raised — Structural
08/03/2026
Filed — Alteration CO
INTERIOR RENOVATION TO EXISTING 3 STORY PLUS CELLAR. CHANGE OF USE FROM MIXED {COMM. AND RESIDENTIAL (5 FAMILY)} TO 4 FAMILY.
B01389740-S2
07/30/2026
Special inspection requirement — HVAC-R and service water heating equipment
07/30/2026
Special inspection requirement — Maintenance information
07/30/2026
Special inspection requirement — HVAC-R and service water piping design and insulation
07/30/2026
Special inspection requirement — HVAC-R and service water heating system controls
07/30/2026
Special inspection requirement — Fire-Resistance Rated Construction
07/30/2026
Special inspection requirement — Smoke Control Systems Testing
07/30/2026
Special inspection requirement — Shutoff dampers
07/30/2026
Special inspection requirement — Energy Code Compliance Inspections
07/29/2026
Objection resolved — Addressed
07/29/2026
Objection resolved — Addressed
07/29/2026
Objection resolved — Open
07/29/2026
Objection resolved — Addressed
07/29/2026
Objection resolved — Open
07/29/2026
Objection resolved — Addressed
07/29/2026
Objection resolved — Open
07/29/2026
Objection resolved — Open
07/29/2026
Objection resolved — Addressed
07/29/2026
Objection resolved — Open
07/29/2026
Objection resolved — Addressed
07/29/2026
Objection resolved — Addressed
07/29/2026
Objection resolved — Addressed
07/29/2026
Objection resolved — Open
07/29/2026
Objection resolved — Addressed
07/29/2026
Objection resolved — Addressed
07/28/2026
Special inspection requirement — Permanent certificate
JAMES CHUN
07/23/2026
Filed — Alteration CO
INTERIOR RENOVATION TO EXISTING 3 STORY PLUS CELLAR. CHANGE OF USE FROM MIXED {COMM. AND RESIDENTIAL (5 FAMILY)} TO 4 FAMILY.
B01389740-S3
07/15/2026
Special inspection requirement — Masonry
07/15/2026
Special inspection requirement — Structural Cold-Formed Steel
07/15/2026
Special inspection requirement — Structural Steel - Details
07/15/2026
Special inspection requirement — Structural Steel - High Strength Bolting
07/14/2026
Objection raised — Scope
07/14/2026
Objection raised — Fire_Protection
07/14/2026
Objection raised — Scope
07/13/2026
Filed — Alteration CO
INTERIOR RENOVATION TO EXISTING 3 STORY PLUS CELLAR. CHANGE OF USE FROM MIXED {COMM. AND RESIDENTIAL (5 FAMILY)} TO 4 FAMILY.
B01389740-S1
07/06/2026
Special inspection requirement — Final
06/24/2026
Objection raised — Scope
06/24/2026
Objection raised — Fire_Protection
06/24/2026
Objection raised — Admin
06/24/2026
Objection raised — Scope
06/24/2026
Objection raised — Scope
06/24/2026
Objection raised — Zoning
06/24/2026
Objection raised — Energy
Latest 60 of 114 events.
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
CKL ENGINEERING208/03/2026
GRANT ENGINEERING CONSULTANTS, LLC107/23/2026
CHUN ENGINEERING CONSULTANT PLLC105/26/2026
Nothing on file for this building.
▾Special Inspection Requirements (DOB NOW) — 27
DateRequirementInspectorRole
08/10/2026Structural Wood Frame—progress
07/30/2026HVAC-R and service water heating equipment—energy_progress
07/30/2026Maintenance information—energy_progress
07/30/2026HVAC-R and service water piping design and insulation—energy_progress
07/30/2026HVAC-R and service water heating system controls—energy_progress
07/30/2026Fire-Resistance Rated Construction—progress
07/30/2026Smoke Control Systems Testing—special
07/30/2026Shutoff dampers—energy_progress
07/30/2026Energy Code Compliance Inspections—progress
07/28/2026Permanent certificateJAMES CHUNenergy_progress
07/15/2026Masonry—special
07/15/2026Structural Cold-Formed Steel—special
07/15/2026Structural Steel - Details—special
07/15/2026Structural Steel - High Strength Bolting—special
07/06/2026Final—progress
05/19/2026Exterior Insulation and Finish Systems (EIFS)—special
05/19/2026Fire-Resistant Penetrations and Joints—special
05/19/2026Energy Code Compliance Inspections—progress
05/19/2026Fire-Resistance Rated Construction—progress
05/19/2026Fenestration and door U-factor and product ratings—energy_progress
05/19/2026Air barrier - visual inspection—energy_progress
05/19/2026Interior lighting power—energy_progress
05/19/2026Fenestration air leakage—energy_progress
05/19/2026Fenestration areas—energy_progress
05/19/2026Insulation placement and R values—energy_progress
Latest 25 of 27.
▾Documents — 10 on file (BIS + DOB NOW)
▸Plans & Drawings4
▸DOB NOWPlans/Sketch4
08/16/2026B01389740-S2Request digital key ↗
08/16/2026B01389740-S1Request digital key ↗
08/14/2026B01389740-I1Request digital key ↗
Showing 3 of 4 on file for this type
▸Seals & Professional Certifications4
▸DOB NOWDPL-1: Design Professional Seal & Signature4
08/16/2026B01389740-I1Open ↗
08/16/2026B01389740-S3Open ↗
08/16/2026B01389740-S2Open ↗
Showing 3 of 4 on file for this type
▸Safety & Tenant Protection1
▸DOB NOWStreet Tree Checklist1
08/14/2026B01389740-I1Open ↗
▸Other Documents1
▸DOB NOWProperty Ownership Certification1
08/14/2026B01389740-I1Open ↗