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NYC DOB record · B00455977-I1

55 Prospect Street

55 Prospect Street, Brooklyn, NY 11201

Alteration filing in Downtown Brooklyn-Dumbo-Boerum Hill, Brooklyn. The latest DOB status is loc issued.

DOB has issued a Letter of Completion, which records that the work in this filing is finished. What every status means

Recorded as completedAlteration filing

NYC Department of Buildings · w9ak-ipjd · accessed Sep 14, 2026 · Verify the source row

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NYC DOB RECORD · B00455977-I1

55 Prospect Street

Brooklyn, NY 11201

Alteration filing · status dated May 5, 2023

Current record
Recorded as completed
Proposed scale
Not stated
Dwelling units
Not stated
Filing data portrait

A page-specific reading of the filing status, location and stated scale. Values are drawn from the cited DOB record.

Address record at a glance

What is filed at this address?

NYC DOB lists filing B00455977-I1 as a alteration filing at 55 Prospect Street, Brooklyn, NY 11201. Its latest published status category is Recorded as completed, dated May 5, 2023. The published record does not state proposed stories or dwelling units.

A filing or approval does not by itself confirm that work is underway. Proposed details may change in later DOB records.
Filing type
Alteration filing
Latest status
Recorded as completed
Latest status date
May 5, 2023
Proposed scale
Not stated in this filing
Complete building dossierView all 13 filings associated with BIN 3000161Applicant of recordSee the 260 filings that name Mg Engineering D.P.C.
FiledMar 24, 2021
Current recordRecorded as completed
Proposed scaleNot specified
Recorded cost$69,149

What the filing says

A public-record reading of the proposed work.

Sprinkler Modifications on the 8th floor as per plans filed herewith. no change to use, egress or occupancy.

Street Futures classifies this record as a alteration filing based on the filing type and work flags published by the Department of Buildings. This classification helps organize the map; it does not add scope that is absent from the DOB record.

The lot this filing sits on

What is already here?

The lot holds a 10-story office building built in 1967, on a 20,704 sq ft lot.

Built
1967
Last altered
2014
Floors
10
Residential units
0
Building type
Office building
Land use
Commercial and office
Zoning district
M1-6
Lot area
20,704 sq ft
Building area
256,057 sq ft

Lot facts come from NYC Department of City Planning, Primary Land Use Tax Lot Output (PLUTO) (64uk-42ks), accessed Sep 14, 2026. They describe the tax lot, not this filing.

Violation record

Are there open violations here?

No open violations are recorded for this building. 58 notices are on file, all with a recorded resolution.

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 14, 2026.

Recorded timeline

Dates published by the Department of Buildings.

  1. Application filed

    DOB received filing B00455977-I1.

    01
  2. Application approved

    The application reached an approved status in the DOB record.

    02
  3. First permit date recorded

    DOB lists a first permit date. This does not by itself confirm current construction activity.

    03
  4. Current status updated

    The latest recorded filing status is “LOC Issued.”

    04
  5. Sign-off date recorded

    DOB lists a sign-off date for this filing.

    05

For scale: half of DOB filings are permitted within 18 days of being filed and a quarter take longer than 4 months, measured across 50,115 filings that carry both dates. How long a permit takes, by work type and borough

Scope and identifiers

The details used to match this filing.

Where a field reads “empty in the source”, the city published this filing without that value. It is not an omission on our side, and nothing here is inferred to fill a gap.

DOB filing number
B00455977-I1
BBL
3000630001
Review type
Professional Certification
Existing stories
Empty in the source
Proposed stories
Empty in the source
Existing dwelling units
0
Proposed dwelling units
0

Nearby records

Other verified filings in this part of the city.