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Elevator apt, semi-fireproof without stores
Colonial Estates
1320 51ST STREET · Borough Park · BIN 3138380
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1935Year Built
6Stories
D1Building Class
R6Zoning
72,816 sfGross Floor Area
65Units
LL97 CoveredRent Stabilized5 Active Violations 2 likely answered ▸FDNY Report ↗
Elevator apt, semi-fireproof without stores · Owner of record: 1320 21st Street · 18,000 sf lot · 4.05 FAR built · Flood zone X
Locations of Work
ArchitectureStructuralElectricalMechanicalPlumbingGeneral
Names shown beside floors are taken automatically from the text of filed documents and may be incomplete or wrong.
RoofWireless Propco LLC7p · 5 filings · 20 docs
CellarWireless Propco LLC7p · 5 filings · 20 docs
Site & exteriorWireless Propco LLC4p · 3 filings · 20 docs
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
1320 51st1403/21/2026
Wireless Propco703/22/2026
1320 51st Street503/22/2026
Expert Enterprises503/21/2026
Woodland Realty Co203/21/2026
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
KMB Design Group505/01/2024
Tectonic Engineering203/25/2024
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
CCM Services Group703/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
Jacobs TelecommunGeneral Contractor507/08/2026
Etak SystemsGeneral Contractor303/21/2026
Aura PlumbingPlumbing207/08/2026
Associated Electric Cont of NElectrical203/21/2026
Syed-Naqvi AltafElectrical103/21/2026
Alson Electrical ContractingElectrical103/21/2026
Douglas Electrical ContractingElectrical103/21/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
KMB Design Group513505/01/2024
Tectonic Engineering Cons106203/25/2024
Building Lifecycle
All (82)Filed (7)Permit Issued (6)Signed Off (5)Violation (44)Objection (16)Special Inspection (4)
07/16/2025
Signed off — Alteration
B00409813-I1
03/26/2025
Signed off — Alteration
Installation of gas meter and gas piping as per plans. No change to occupancy, use, or egress.
B00409907-I1
06/07/2024
Special inspection requirement — Fire-Resistant Penetrations and Joints
Ekata Shah
06/03/2024
Objection resolved — Addressed
05/17/2024
Objection raised — Scope
05/17/2024
Objection resolved — Addressed
05/06/2024
Objection raised — Scope
05/01/2024
Filed — Alteration
Installation of gas meter and gas piping as per plans. No change to occupancy, use, or egress.
B00409907-P1
04/11/2024
Signed off — Alteration
Replacement of existing condensing units with related mounting modifications on roof. Replacement of existing air handling units in existing equipment room in cellar. Replacements of linesets per plan. No change to occupancy, use, or egress.
B00823063-I1
04/08/2024
Violation issued (HPD, closed)
A
03/25/2024
Filed — Alteration
Replacement of existing condensing units with related mounting modifications on roof. Replacement of existing air handling units in existing equipment room in cellar. Replacements of linesets per plan. No change to occupancy, use, or egress.
B00823063-P1
01/03/2024
Violation issued (ECB, closed)
Cranes and Derricks
11/21/2023
Violation issued (HPD, closed)
I
07/31/2023
Permit issued — Structural
B00823063-I1-GC-CX
07/05/2023
Filed — Alteration
Replacement of existing condensing units with related mounting modifications on roof. Replacement of existing air handling units in existing equipment room in cellar. Replacements of linesets per plan. No change to occupancy, use, or egress.
B00823063-I1
06/26/2023
Signed off — Alteration
B00363764-I1
03/20/2023
Violation issued (HPD, closed)
A
11/09/2022
Violation issued (HPD, closed)
I
02/22/2022
Violation issued (HPD, closed)
A
02/10/2022
Permit issued — Plumbing
B00409907-I1-PL
03/11/2021
Permit issued — Plumbing
B00409907-I1-PL
01/20/2021
Permit issued — Mechanical Systems
B00409813-I1-MS
01/11/2021
Filed — Alteration
B00409813-I1
01/08/2021
Filed — Alteration
Installation of gas meter and gas piping as per plans. No change to occupancy, use, or egress.
B00409907-I1
11/24/2020
Special inspection requirement — Fire-Resistant Penetrations and Joints
Ekata Shah
10/07/2020
Special inspection requirement — Mechanical Systems
Ekata Shah
10/07/2020
Special inspection requirement — Final
Ekata Shah
09/28/2020
Permit issued — Antenna
B00363764-I1-AN
08/26/2020
Signed off — Alteration
AT&T/ Replacement of existing telecommunications antennas with installation/replacement of RRH units on roof. Installation and retrofit of cabinets with installation of RRH units in existing equipment room in cellar. All work in compliance with TPPN 5/98. No change to occupancy, use, or egress.
B00002475-I1
07/20/2020
Filed — Alteration
B00363764-I1
08/13/2019
Violation issued (ECB, closed)
Elevators
06/24/2019
Violation issued (DOB, closed)
V*-DOB VIOLATION - Resolved
02/27/2019
Permit issued — Antenna
B00002475-I1-AN
07/23/2018
Violation issued (HPD, open)
A
07/23/2018
Violation issued (HPD, open)
A
07/23/2018
Violation issued (HPD, open)
A
07/23/2018
Violation issued (HPD, open)
A
06/04/2018
Violation issued (DOB, closed)
V*-DOB VIOLATION - Resolved
04/23/2018
Violation issued (HPD, closed)
B
04/23/2018
Violation issued (HPD, closed)
B
01/02/2018
Objection raised — Other
01/02/2018
Objection resolved — Addressed
01/02/2018
Objection raised — 2014-AN BC 1704-Building Code-
01/02/2018
Objection resolved — Addressed
01/02/2018
Objection raised — 1998-AN AC 28-103.14.1-TPPN-98
01/02/2018
Objection resolved — Addressed
01/02/2018
Objection raised — 2014-AN AC 28-104.11-Building
01/02/2018
Objection resolved — Addressed
01/02/2018
Objection raised — Other
01/02/2018
Objection resolved — Addressed
01/02/2018
Objection raised — 2016-AN NYCECC R402.4.1 or C40
01/02/2018
Objection resolved — Addressed
12/29/2017
Filed — Alteration
AT&T/ Replacement of existing telecommunications antennas with installation/replacement of RRH units on roof. Installation and retrofit of cabinets with installation of RRH units in existing equipment room in cellar. All work in compliance with TPPN 5/98. No change to occupancy, use, or egress.
B00002475-I1
05/26/2017
Violation issued (DOB, closed)
V*-DOB VIOLATION - Resolved
01/03/2017
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
11/14/2016
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
08/08/2016
Violation issued (DOB, closed)
V*-DOB VIOLATION - Resolved
01/07/2016
Violation issued (ECB, closed)
Elevators
12/07/2015
Violation issued (HPD, closed)
A
10/01/2015
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
Latest 60 of 82 events.
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWStructuralSigned-offEtak Systems07/31/2023
DOB NOWPlumbingSigned-offAura Plumbing02/10/2022
DOB NOWPlumbingSigned-offAura Plumbing03/11/2021
DOB NOWMechanical SystemsSigned-offArmentum Digital Infrastr01/20/2021
DOB NOWAntennaSigned-offArmentum Digital Infrastr09/28/2020
DOB NOWAntennaSigned-offArmentum Digital Infrastr02/27/2019
BISOTISSUEDJacobs Telecommun10/27/2021
BISOTISSUEDJacobs Telecommun03/08/2021
BISOTISSUEDJacobs Telecommun02/24/2017
BISOTISSUEDSquan Construction Services10/21/2015
BISOTISSUEDTelcom Engineering GP08/10/2015
BISOTISSUEDSquan Construction Services02/18/2015
BISEQISSUEDExpert Enterprises03/13/2014
BISOTISSUEDDelwar Hussain05/13/2013
BISMHISSUEDTechnical Solutions04/16/2013
BISEQISSUEDExpert Enterprises03/20/2013
BISOTISSUEDCrosslink Wireless11/29/2012
BISEQISSUEDExpert Enterprises07/25/2012
BISOTISSUEDDelwar Hussain07/17/2012
BISOTISSUEDCostrotta Construction MG04/18/2012
BISOTISSUEDCrosslink Wireless05/27/2011
BISOTISSUEDTrinity Technologies10/04/2010
BISOTISSUEDVertical Solutions04/04/2008
BISOTISSUEDVertical Solutions11/16/2007
BISMHISSUEDVantage Associates02/16/2006
BISOTISSUEDVantage Associates10/02/2001
BISOTISSUEDGJF Construction11/28/2000
BISOTISSUEDConti Communications10/23/2000
BISOTISSUEDCellular One08/03/1995
BISPLISSUEDJoseph Ferrigno Plumbing/Heating07/16/1993
Nothing on file for this building.
▾Special Inspection Requirements (DOB NOW) — 4
DateRequirementInspectorRole
06/07/2024Fire-Resistant Penetrations and JointsEkata Shahspecial
11/24/2020Fire-Resistant Penetrations and JointsEkata Shahspecial
10/07/2020Mechanical SystemsEkata Shahspecial
10/07/2020FinalEkata Shahprogress
▾Documents — 164 on file (BIS + DOB NOW)
▸Plans & Drawings7
▸DOB NOWPlans/Sketch3
08/27/2026B00823063-I1Request digital key ↗
08/27/2026B00823063-P1Request digital key ↗
08/14/2026B00002475-I1Request digital key ↗
▸DOB NOWPlans/Sketch - Plumbing2
08/25/2026B00409907-I1Request digital key ↗
08/15/2026B00409907-P1Request digital key ↗
▸DOB NOWPlans/Sketch - Mechanical Systems1
09/01/2026B00409813-I1Request digital key ↗
▸DOB NOWPlans/Sketch - Antenna1
09/02/2026B00363764-I1Request digital key ↗
▸Applications & Permits30
▸BISWORK PERMIT APPLICATION17
03/08/2021340798756Open ↗
02/27/2017321459097Open ↗
11/02/2015321065226Open ↗
Showing 3 of 17 on file for this type
▸BISPLAN / WORK APPROVAL APPLICATION13
06/17/2025340798756Open ↗
12/29/2020340798756Open ↗
12/28/2016321459097Open ↗
Showing 3 of 13 on file for this type
▸Seals & Professional Certifications36
▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION21
04/25/2018321459097Open ↗
02/27/2017321459097Open ↗
02/27/2017321459097Open ↗
Showing 3 of 21 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature7
09/03/2026B00002475-I1Open ↗
09/01/2026B00409813-I1Open ↗
08/27/2026B00823063-P1Open ↗
Showing 3 of 7 on file for this type
▸BISPROFESSIONAL CERTIFIED CHECKLIST2
07/25/2012320512316Open ↗
07/11/2012320507466Open ↗
▸BISPROFESSIONAL CERTIFICATION STATEMENT FORM2
07/25/2012320512316Open ↗
07/11/2012320507466Open ↗
▸DOB NOWSpecial Inspector Seal & Signature2
08/24/2026B00409813-I1Open ↗
08/23/2026B00409907-I1Open ↗
▸BISAPPLICANT OWNER SIGNATURE1
12/29/2020340798756Open ↗
▸DOB NOWProgress Inspector Seal & Signature1
08/24/2026B00409813-I1Open ↗
▸Trade Schedules & Equipment3
▸BISFA - FDNY APPROVAL : FD-FAA3
12/29/2020340798756Open ↗
02/27/2017321459097Open ↗
08/10/2015321065226Open ↗
▸Safety & Tenant Protection6
▸DOB NOWTenant Protection Plan4
09/01/2026B00409813-I1Open ↗
08/13/2026B00409907-I1Open ↗
08/13/2026B00409907-P1Open ↗
Showing 3 of 4 on file for this type
▸BISTenant Protection Plan and Notes1
10/04/2016321459097Open ↗
▸BISTPP1: TENANT PROTECTION PLAN1
03/08/2021340798756Open ↗
▸Environmental & Asbestos18
▸DOB NOWDEP ACP-5: Asbestos Assessment Report7
09/01/2026B00409813-I1Open ↗
08/27/2026B00823063-I1Open ↗
08/27/2026B00823063-P1Open ↗
Showing 3 of 7 on file for this type
▸BISASBESTOS: CERTIFICATION (DEP ACP5)6
10/04/2016321459097Open ↗
07/14/2015321156958Open ↗
01/31/2015321065226Open ↗
Showing 3 of 6 on file for this type
▸BISTHIS IS NOT AN ASBESTOS PROJECT4
04/12/2012320460416Open ↗
04/12/2012320460416Open ↗
05/26/2011320312023Open ↗
Showing 3 of 4 on file for this type
▸BISASBESTOS: COMPLETION OR CLOSEOUT (ACP20/21/5)1
10/28/2021340798756Open ↗
▸Energy Compliance18
▸BISTECHNICAL REPORT: ENERGY CODE PROGRESS INSPS10
04/25/2018321459097Open ↗
02/27/2017321459097Open ↗
02/27/2017321459097Open ↗
Showing 3 of 10 on file for this type
▸BISAS-BUILT ENERGY ANALYSIS4
06/12/2025340798756Open ↗
04/25/2018321459097Open ↗
05/18/2016321156958Open ↗
Showing 3 of 4 on file for this type
▸BISTECHNICAL REPORT: ENERGY CODE - RESPONSIBILITY3
06/12/2025340798756Open ↗
12/29/2020340798756Open ↗
12/29/2020340798756Open ↗
▸BISTR8: Energy Code Progress Inspections1
04/12/2012320460416Open ↗
▸Inspections & Test Reports3
▸BISTECHNICAL REPORT: RESPONSIBILITY3
06/12/2025340798756Open ↗
12/29/2020340798756Open ↗
12/29/2020340798756Open ↗
▸Approvals, Objections & Sign-offs18
▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST7
06/13/2025340798756Open ↗
04/25/2018321459097Open ↗
05/18/2016321156958Open ↗
Showing 3 of 7 on file for this type
▸BISADMINISTRATIVE OBJECTIONS7
01/31/2015321065226Open ↗
12/05/2012320546806Open ↗
07/24/2012320512316Open ↗
Showing 3 of 7 on file for this type
▸BISLETTERS - SUPPORTING DOCUMENTATION3
04/25/2018321459097Open ↗
03/25/2014320512316Open ↗
03/04/2013320460416Open ↗
▸BISLETTERS - APPROVED FABRICATION CERTIFICATIONS1
03/25/2013320512316Open ↗
▸Cost, Insurance & Ownership17
▸BISCOST AFFIDAVIT17
06/12/2025340798756Open ↗
12/29/2020340798756Open ↗
04/25/2018321459097Open ↗
Showing 3 of 17 on file for this type
▸Filing & Intake Forms8
▸BISEFILING COVER SHEET5
10/04/2016321459097Open ↗
07/14/2015321156958Open ↗
01/31/2015321065226Open ↗
Showing 3 of 5 on file for this type
▸BISADDITIONAL INFORMATION1
07/17/2012320507466Open ↗
▸BISBOROUGH INTAKE FORM1
04/25/2018321459097Open ↗
▸BISEFILING JOB APPLICATION COVER SHEET1
12/29/2020340798756Open ↗