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Two family converted from one family
109-20 121 STREET
QUEENS · BIN 4249515
💬 Discuss this project
1930Year Built
2.5Stories
B3Building Class
R4AZoning
—Gross Floor Area
2Units
2 Open Violations 1 unresolved · 1 paperwork only ▸FDNY Report ↗
Two family converted from one family · 0.56 FAR built · Flood zone X
Locations of Work
Architecture
Roof1p · 1 filing · 2 docs
Floor 21p · 1 filing · 2 docs
Floor 1
Cellar1p · 1 filing · 8 docs
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
KOJO SIMPSON ARCHITECT107/12/2026
ASHOKE CHAKRABORTY RA103/16/2021
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
KATARIA BUILDERS203/21/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
KOJO SIMPSON ARCHITECT1664103/16/2021
Building Lifecycle
All (49)Filed (2)Violation (11)Objection (10)Special Inspection (26)
08/25/2026
Objection raised — Other
08/25/2026
Objection raised — Zoning
08/25/2026
Objection raised — Structural
08/25/2026
Objection raised — Scope
08/25/2026
Objection raised — Zoning
08/25/2026
Objection raised — Accessibility
08/25/2026
Objection raised — Admin
08/25/2026
Objection raised — Fire_Protection
08/25/2026
Objection raised — Other
08/25/2026
Objection raised — Energy
07/12/2026
Filed — Alteration CO
PROPOSED RENOVATION TO AN EXISTING TWO-FAMILY DWELLING, TWO-STORY AND ATTIC RESIDENTIAL USE BUILDING, PROPOSED CELLAR ANCILLARY UNIT.
Q01426364-I1
07/12/2026
Special inspection requirement — Metering
07/12/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
07/12/2026
Special inspection requirement — Energy Code Compliance Inspections
07/12/2026
Special inspection requirement — Fire-Resistance Rated Construction
07/12/2026
Special inspection requirement — Fenestration air leakage
07/12/2026
Special inspection requirement — Fenestration areas
07/12/2026
Special inspection requirement — Air barrier - visual inspection
07/12/2026
Special inspection requirement — Insulation placement and R values
07/12/2026
Special inspection requirement — Fenestration and door U-factor and product ratings
07/12/2026
Special inspection requirement — Maintenance information
07/12/2026
Special inspection requirement — Permanent certificate
07/10/2026
Special inspection requirement — HVAC-R and service water heating equipment
07/10/2026
Special inspection requirement — HVAC-R and service water piping design and insulation
07/10/2026
Special inspection requirement — HVAC-R and service water heating system controls
07/05/2026
Special inspection requirement — Structural Stability – Alterations of existing buildings
07/05/2026
Special inspection requirement — Mechanical Systems
07/05/2026
Special inspection requirement — Final
03/16/2021
Filed — Alteration
Q00461116-I1
01/26/2021
Special inspection requirement — Energy Code Compliance Inspections
ASHOKE CHAKRABORTY
01/26/2021
Special inspection requirement — Fire-Resistance Rated Construction
ASHOKE CHAKRABORTY
01/26/2021
Special inspection requirement — Insulation placement and R values
ASHOKE CHAKRABORTY
01/26/2021
Special inspection requirement — Interior lighting power
ASHOKE CHAKRABORTY
01/26/2021
Special inspection requirement — Fenestration air leakage
ASHOKE CHAKRABORTY
01/26/2021
Special inspection requirement — Fenestration areas
ASHOKE CHAKRABORTY
01/26/2021
Special inspection requirement — Air barrier - visual inspection
ASHOKE CHAKRABORTY
01/26/2021
Special inspection requirement — Fire-Resistant Penetrations and Joints
KOJO SIMPSON
01/26/2021
Special inspection requirement — Structural Stability – Alterations of existing buildings
KOJO SIMPSON
03/13/2013
Violation issued (HPD, closed)
B
03/13/2013
Violation issued (HPD, closed)
B
03/13/2013
Violation issued (HPD, closed)
B
03/13/2013
Violation issued (HPD, closed)
B
03/13/2013
Violation issued (HPD, closed)
B
03/13/2013
Violation issued (HPD, closed)
A
03/13/2013
Violation issued (HPD, open)
B
11/02/1999
Violation issued (ECB, closed)
Zoning
10/24/1999
Violation issued (ECB, closed)
Construction
10/24/1999
Violation issued (ECB, open)
Quality of Life
10/24/1999
Violation issued (ECB, closed)
Quality of Life
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
BISPLISSUEDWAGNER ZIV PLUMBING 7 HEATING10/23/2003
BISPLISSUEDBROOKLYN PLUMBING, SEWER DRAIN04/04/2002
BISPLISSUEDIDEAL PLUMBING & HEATING CO. INC08/24/2001
BIS—ISSUEDAL PROS CONST. INC03/29/2001
BISEQISSUEDAL PROS CONSTRUCTION03/26/2001
BISOTISSUEDN/A03/19/2001
1 project · most recent 07/12/2026
Heating and Air Conditioning Systems
FiledStatusContractorScopeMake / Model / Capacity
07/12/2026——Heating and Air Conditioning Systems
Heat / Cool
Mitsubishi Electric MSZ-FS09NA 9,000 BTU · Fan Coil Indoor ×6
MSZ-FS12NA 12,000 BTU · Split System ×5
MXZ-SM36NAMHZ-U1 36,000 BTU · Condensing Unit ×2
MXZ-SM48NAMHZ-U1 48,000 BTU · Condensing Unit ×2
▾Special Inspection Requirements (DOB NOW) — 26
DateRequirementInspectorRole
07/12/2026Metering—energy_progress
07/12/2026Fire-Resistant Penetrations and Joints—special
07/12/2026Energy Code Compliance Inspections—progress
07/12/2026Fire-Resistance Rated Construction—progress
07/12/2026Fenestration air leakage—energy_progress
07/12/2026Fenestration areas—energy_progress
07/12/2026Air barrier - visual inspection—energy_progress
07/12/2026Insulation placement and R values—energy_progress
07/12/2026Fenestration and door U-factor and product ratings—energy_progress
07/12/2026Maintenance information—energy_progress
07/12/2026Permanent certificate—energy_progress
07/10/2026HVAC-R and service water heating equipment—energy_progress
07/10/2026HVAC-R and service water piping design and insulation—energy_progress
07/10/2026HVAC-R and service water heating system controls—energy_progress
07/05/2026Structural Stability – Alterations of existing buildings—special
07/05/2026Mechanical Systems—special
07/05/2026Final—progress
01/26/2021Energy Code Compliance InspectionsASHOKE CHAKRABORTYprogress
01/26/2021Fire-Resistance Rated ConstructionASHOKE CHAKRABORTYprogress
01/26/2021Insulation placement and R valuesASHOKE CHAKRABORTYenergy_progress
01/26/2021Interior lighting powerASHOKE CHAKRABORTYenergy_progress
01/26/2021Fenestration air leakageASHOKE CHAKRABORTYenergy_progress
01/26/2021Fenestration areasASHOKE CHAKRABORTYenergy_progress
01/26/2021Air barrier - visual inspectionASHOKE CHAKRABORTYenergy_progress
01/26/2021Fire-Resistant Penetrations and JointsKOJO SIMPSONspecial
Latest 25 of 26.
▾Documents — 10 on file (BIS + DOB NOW)
▸Plans & Drawings2
▸DOB NOWPlans/Sketch1
08/16/2026Q01426364-I1Request digital key ↗
▸DOB NOWPlans/Sketch - General Construction1
08/27/2026Q00461116-I1Request digital key ↗
▸Zoning, Tax Lot & Property Records1
▸DOB NOWZD1: DOB Zoning Diagram1
08/13/2026Q00461116-I1Open ↗
▸Seals & Professional Certifications5
▸DOB NOWDPL-1: Design Professional Seal & Signature2
08/16/2026Q01426364-I1Open ↗
08/13/2026Q00461116-I1Open ↗
▸DOB NOWProgress Inspector Seal & Signature2
08/26/2026Q00461116-I1Open ↗
08/26/2026Q00461116-I1Open ↗
▸DOB NOWSpecial Inspector Seal & Signature1
08/26/2026Q00461116-I1Open ↗
▸Other Documents2
▸DOB NOWLocal Law 92/94 of 2019 Sustainable Roof Zone1
08/13/2026Q00461116-I1Open ↗
▸DOB NOWPlot Diagram1
08/13/2026Q00461116-I1Open ↗