Alteration filingSep 2
DOB filing B01228399-I1
Alteration filing at 300 Jay Street
Approved$106,997 recorded cost
Open filing Building record · BIN 3335892
300 Jay Street
300 Jay Street, Brooklyn, NY 11201
A consolidated, filing-by-filing view of DOB records matched to this building identifier. The current snapshot links 6 independently sourced records, including 4 that are not recorded as completed, closed or withdrawn.
newyorkdailyStreet Futures
BUILDING RECORD · BIN 3335892
300 Jay Street
Downtown Brooklyn-Dumbo-Boerum Hill, Brooklyn
A consolidated public-record view · updated Sep 2, 2026
- DOB filings
- 6
- Active-status
- 4
- Recorded addresses
- 1
A building-level summary of matched filings, active-status records and published identifiers.
Matched filings6
Open or active-status records4
First included filingNov 27, 2018
Latest recorded changeSep 2, 2026
The lot
What is already here?
The lot holds a 11-story educational building built in 1920, on a 100,866 sq ft lot.
- Built
- 1920
- Last altered
- 2023
- Floors
- 11
- Residential units
- 0
- Building type
- Educational building
- Land use
- Public facilities and institutions
- Zoning district
- C6-4
- Lot area
- 100,866 sq ft
- Building area
- 450,516 sq ft
Lot facts come from NYC Department of City Planning, Primary Land Use Tax Lot Output (PLUTO) (64uk-42ks), accessed Sep 11, 2026. They describe the tax lot, not any single filing.
Violation record
Are there open violations here?
The Department of Buildings has 138 open notices on record for this building, out of 305 notices on file; the most recent was issued Jan 10, 2024.
- Fail to certify class
Issued Jan 10, 2024 — FAILURE TO CERTIFY CORRECTION ON IMMEDIATELY HAZARDOUS (CLASS 1) ECB VIOLATION
- No report and / or late filing (facade)
Issued Feb 22, 2023 — FAILED TO FILE FISP CYCLE 9B TECHNICAL REPORT BY 2/21/2023
- Non-residential elevator periodic
Issued Dec 17, 2021 — FAILURE TO PERFORM CATEGORY 5 INSPECTION
135 further open notices are on file. Open the source dataset for the full list.
A violation is a notice the Department of Buildings recorded against the building. It is not a judgment, and many concern paperwork rather than safety. Open means the agency has not recorded a resolution, which is not the same as the problem still existing. From NYC Department of Buildings, DOB Violations (3h2n-5cm9), accessed Sep 4, 2026.
What is recorded here
Multiple filings, one stable building identifier.
New York City's Building Identification Number helps connect filings that may use different application numbers or describe different scopes of work. The records below are grouped because they publish BIN 3335892. They should not be read as a single construction project unless the underlying filings say so.
The matched set includes 6 alteration filing. Its latest status categories are 4 approved, 2 recorded as completed. Each filing page preserves its own status, dates, scope and source identifier.
- First included filing
- Nov 27, 2018
- Latest recorded change
- Sep 2, 2026
- Highest proposed story count
- Not stated
- Highest proposed unit count
- Not stated
Highest recorded values may come from different filings and must not be combined into one proposed project. Open the individual filings below for their exact scope. Values outside the publication's conservative data-quality bounds are withheld pending source review.
Address alerts
Watch this address.
Get an email when NewYorkDaily detects a material change in the public DOB records associated with 300 Jay Street.
Confirmation is required. Alerts describe source-data changes, not confirmed construction activity. Unsubscribe at any time. Privacy
Recorded history
What has happened at this address?
Every dated event the city has published for this building, from all 6 matched filings, in the order it was recorded. A date marks what entered the public record, not what happened on site.
- Alteration filed01
AT&T / Replacement of existing telecommunications antennas with replacement/installations of RRH units on roof. Removal and installation of cabinets in the existing equipment platform on roof, All work in compliance with TPPN 5/98. No change to occupancy, use or egress. Filing B00085310-I1.
- Alteration approved02
Filing B00085310-I1 reached an approved status.
- Permit recorded for alteration03
DOB lists a first permit date for B00085310-I1. That is not by itself confirmation of activity on site.
- Alteration filed04
Installation of sidewalk shed as per plans. no change in use, egress or occupancy. Filing B00191182-I1.
- Alteration approved05
Filing B00191182-I1 reached an approved status.
- Permit recorded for alteration06
DOB lists a first permit date for B00191182-I1. That is not by itself confirmation of activity on site.
- Alteration filed07
Existing t-mobile antenna site. replacement of (8) existing antennas on existing mounts and installation of (9) new antennas and (15) rru's. all in conformance with tppn 5/98. no change in use, egress or occupancy. Filing B00224606-I1.
- Alteration approved08
Filing B00224606-I1 reached an approved status.
- Permit recorded for alteration09
DOB lists a first permit date for B00224606-I1. That is not by itself confirmation of activity on site.
- Alteration filed010
Existing t-mobile antenna site. replacement of (8) existing antennas on existing mounts and installation of (9) new antennas and (15) rru's. all in conformance with tppn 5/98. no change in use, egress or occupancy. Filing B00224606-P1.
- Alteration approved011
Filing B00224606-P1 reached an approved status.
- Alteration signed off012
DOB recorded a sign-off for B00224606-I1.
- Alteration now completed013
The latest status recorded for B00224606-I1 is “LOC Issued.”
- Alteration now approved014
The latest status recorded for B00224606-P1 is “Approved.”
- Alteration now approved015
The latest status recorded for B00085310-I1 is “Permit Entire.”
- Alteration filed016
Installation of sidewalk shed as per plans. no change in use, egress or occupancy. Filing B00191182-P1.
- Alteration approved017
Filing B00191182-P1 reached an approved status.
- Alteration now approved018
The latest status recorded for B00191182-P1 is “Approved.”
- Alteration signed off019
DOB recorded a sign-off for B00191182-I1.
- Alteration now completed020
The latest status recorded for B00191182-I1 is “LOC Issued.”
- Alteration filed021
Minor sprinkler work as per plans. no change of use, egress or occupancy under this application. Filing B01228399-I1.
- Alteration approved022
Filing B01228399-I1 reached an approved status.
- Alteration now approved023
The latest status recorded for B01228399-I1 is “Approved.”