Alteration filingOct 6
DOB filing B00558779-I1
Alteration filing at 23 Prospect Place
Recorded as completed$10,000 recorded cost
Open filing Building record · BIN 3018759
23 Prospect Place
23 Prospect Place, Brooklyn, NY 11217
A consolidated, filing-by-filing view of DOB records matched to this building identifier. The current snapshot links 3 independently sourced records, including 2 that are not recorded as completed, closed or withdrawn.
newyorkdailyStreet Futures
BUILDING RECORD · BIN 3018759
23 Prospect Place
Park Slope, Brooklyn
A consolidated public-record view · updated Oct 6, 2021
- DOB filings
- 3
- Active-status
- 2
- Recorded addresses
- 1
A building-level summary of matched filings, active-status records and published identifiers.
Matched filings3
Open or active-status records2
First included filingJul 15, 2021
Latest recorded changeOct 6, 2021
The lot
What is already here?
The lot holds a 3-story two-family home built in 1869, on a 1,513 sq ft lot.
- Floors 2–3Homes2 homes are recorded on this lot — about one home to a floor. The city does not publish which floor any of them is on.
- Floor 1Street levelStreet level. The lot is recorded as one and two family homes.
- Street levelOne and two family homes
- Homes2 recorded on the lot
- Above the southern skylineFrom about floor 6 — the tallest thing within 60 m to the south is 15 m
- Built
- 1869
- Floors
- 3
- Residential units
- 2
- Building type
- Two-family home
- Land use
- One and two family homes
- Zoning district
- R6B
- Lot area
- 1,513 sq ft
- Building area
- 3,040 sq ft
- Historic district
- Park Slope Historic District Extension II
What it sold for
1 apartment on this tax block changed hands in the year the city last published, at a median of $1,975,000.
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 21, 2026. They describe the tax lot, not any single filing. When the rest of New York went up
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 3018759. They should not be read as a single construction project unless the underlying filings say so.
The matched set includes 3 alteration filing. Its latest status categories are 1 recorded as completed, 2 approved. Each filing page preserves its own status, dates, scope and source identifier.
- First included filing
- Jul 15, 2021
- Latest recorded change
- Oct 6, 2021
- Highest proposed story count
- Not stated
- Highest proposed unit count
- 1 dwelling units
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 3 matched filings, in the order it was recorded. A date marks what entered the public record, not what happened on site.
- Alteration filed01
Replacement of gas piping and installation of new boiler with related piping as shown on drawings. Filing B00558779-I1.
- Alteration approved02
Filing B00558779-I1 reached an approved status.
- Permit recorded for alteration03
DOB lists a first permit date for B00558779-I1. That is not by itself confirmation of activity on site.
- Alteration filed04
Replacement of gas piping and installation of new boiler with related piping as shown on drawings. Filing B00558779-P1.
- Alteration approved05
Filing B00558779-P1 reached an approved status.
- Alteration now approved06
The latest status recorded for B00558779-P1 is “Approved.”
- Alteration filed07
Replacement of gas piping and installation of new boiler with related piping as shown on drawings. Filing B00558779-P3.
- Alteration approved08
Filing B00558779-P3 reached an approved status.
- Alteration now approved09
The latest status recorded for B00558779-P3 is “Approved.”
- Alteration signed off010
DOB recorded a sign-off for B00558779-I1.
- Alteration now completed011
The latest status recorded for B00558779-I1 is “LOC Issued.”