Alteration filingJun 1
DOB filing B00557845-I1
Alteration filing at 2840 Knapp Street
Recorded as completed$25,000 recorded cost
Open filing Building record · BIN 3247955
2840 Knapp Street
2840 Knapp Street, Brooklyn, NY 11235
A consolidated, filing-by-filing view of DOB records matched to this building identifier. The current snapshot links 6 independently sourced records, including 1 that are not recorded as completed, closed or withdrawn.
newyorkdailyStreet Futures
BUILDING RECORD · BIN 3247955
2840 Knapp Street
Sheepshead Bay-Manhattan Beach-Gerritsen Beach, Brooklyn
A consolidated public-record view · updated Jun 1, 2023
- DOB filings
- 6
- Active-status
- 1
- Recorded addresses
- 1
A building-level summary of matched filings, active-status records and published identifiers.
Matched filings6
Open or active-status records1
First included filingOct 29, 2020
Latest recorded changeJun 1, 2023
The lot
What is already here?
The lot holds a 6-story health facility built in 1969, on a 29,500 sq ft lot.
- Floors 2–6Nothing on record
- Floor 1Street levelStreet level. The lot is recorded as public facilities and institutions.
- Street levelPublic facilities and institutions
- Above the southern skylineFrom about floor 7 — the tallest thing within 60 m to the south is 19 m
- Built
- 1969
- Last altered
- 1997
- Floors
- 6
- Residential units
- 0
- Building type
- Health facility
- Land use
- Public facilities and institutions
- Zoning district
- R6
- Lot area
- 29,500 sq ft
- Building area
- 66,242 sq ft
What it sold for
6 apartments on this tax block changed hands in the year the city last published, at a median of $309,270, from 185,000 to 335,000.
Recorded sale prices from the Department of Finance’s rolling file, covering the year to Aug 31, 2026. Transfers under $10,000 are left out: New York records deed transfers between relatives at a dollar, and those are not sales. No apartment number and no name is carried from either side.
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 any single filing. When the rest of New York went up
Violation record
Are there open violations here?
The Department of Buildings has 1 open notice on record for this building, out of 41 notices on file; the most recent was issued May 19, 2016.
- Construction
Issued May 19, 2016
Open means the agency has not recorded a resolution, which is not the same as the problem still existing. What a violation is, and what it is not. From NYC Department of Buildings, DOB Violations (3h2n-5cm9), accessed Sep 14, 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 3247955. 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 5 recorded as completed, 1 approved. Each filing page preserves its own status, dates, scope and source identifier.
- First included filing
- Oct 29, 2020
- Latest recorded change
- Jun 1, 2023
- Highest proposed story count
- 6 stories
- 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.
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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
Mechanical work type filed herewith to obtain new certificate of compliance (eup-card) for outdoor condensor units. Filing B00421445-I1.
- Alteration approved02
Filing B00421445-I1 reached an approved status.
- Permit recorded for alteration03
DOB lists a first permit date for B00421445-I1. That is not by itself confirmation of activity on site.
- Alteration signed off04
DOB recorded a sign-off for B00421445-I1.
- Alteration now completed05
The latest status recorded for B00421445-I1 is “LOC Issued.”
- Alteration filed06
Installation of emergency generator. FB will be filed under separate application. Filing B00557845-I1.
- Alteration approved07
Filing B00557845-I1 reached an approved status.
- Alteration filed08
Steel dunnage on 1st floor roof over garage entry ramp to support backup generator. no change in energy usage, no change in use egress or occupancy. Filing B00582472-I1.
- Alteration approved09
Filing B00582472-I1 reached an approved status.
- Permit recorded for alteration010
DOB lists a first permit date for B00557845-I1. That is not by itself confirmation of activity on site.
- Alteration filed011
Install tank room enclosure. Filing B00645236-I1.
- Alteration approved012
Filing B00645236-I1 reached an approved status.
- Alteration filed013
Install one (1) 2,000 gallon aboveground storage tank and oil piping to generator. generator filed by others. Filing B00645175-I1.
- Alteration approved014
Filing B00645175-I1 reached an approved status.
- Permit recorded for alteration015
DOB lists a first permit date for B00645175-I1. That is not by itself confirmation of activity on site.
- Permit recorded for alteration016
DOB lists a first permit date for B00645236-I1. That is not by itself confirmation of activity on site.
- Permit recorded for alteration017
DOB lists a first permit date for B00582472-I1. That is not by itself confirmation of activity on site.
- Alteration signed off018
DOB recorded a sign-off for B00582472-I1.
- Alteration now completed019
The latest status recorded for B00582472-I1 is “LOC Issued.”
- Alteration signed off020
DOB recorded a sign-off for B00645175-I1.
- Alteration now completed021
The latest status recorded for B00645175-I1 is “LOC Issued.”
- Alteration filed022
Install tank room enclosure. Filing B00645236-P1.
- Alteration approved023
Filing B00645236-P1 reached an approved status.
- Alteration now approved024
The latest status recorded for B00645236-P1 is “Approved.”
- Alteration signed off025
DOB recorded a sign-off for B00645236-I1.
- Alteration now completed026
The latest status recorded for B00645236-I1 is “LOC Issued.”
- Alteration signed off027
DOB recorded a sign-off for B00557845-I1.
- Alteration now completed028
The latest status recorded for B00557845-I1 is “LOC Issued.”