Alteration filingSep 13
DOB filing B00542956-I1
Alteration filing at 21 Polhemus Place
Recorded as completed$106,000 recorded cost
Open filing Building record · BIN 3024890
21 Polhemus Place
21 Polhemus Place, Brooklyn, NY 11215
A consolidated, filing-by-filing view of DOB records matched to this building identifier. The current snapshot links 3 independently sourced records, including 1 that are not recorded as completed, closed or withdrawn.
newyorkdailyStreet Futures
BUILDING RECORD · BIN 3024890
21 Polhemus Place
Park Slope, Brooklyn
A consolidated public-record view · updated Sep 13, 2022
- DOB filings
- 3
- Active-status
- 1
- Recorded addresses
- 1
A building-level summary of matched filings, active-status records and published identifiers.
Matched filings3
Open or active-status records1
First included filingJul 20, 2021
Latest recorded changeSep 13, 2022
The lot
What is already here?
The lot holds a 3-story walk-up apartment building built in 1898, with 7 homes, on a 1,584 sq ft lot.
- Floors 2–3Homes7 homes are recorded on this lot — about 4 homes to a floor. The city does not publish which floor any of them is on.
- Floor 1Street levelStreet level. The lot is recorded as walk-up apartments.
- Street levelWalk-up apartments
- Homes7 recorded on the lot
- Above the southern skylineFrom about floor 8 — the tallest thing within 60 m to the south is 21.2 m
- Built
- 1898
- Floors
- 3
- Residential units
- 7
- Building type
- Walk-up apartment building
- Land use
- Walk-up apartments
- Zoning district
- R6B
- Lot area
- 1,584 sq ft
- Building area
- 3,212 sq ft
- Historic district
- Park Slope Historic District
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 3024890. 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 2 recorded as completed, 1 approved. Each filing page preserves its own status, dates, scope and source identifier.
- First included filing
- Jul 20, 2021
- Latest recorded change
- Sep 13, 2022
- Highest proposed story count
- 4 stories
- Highest proposed unit count
- 8 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.
Address alerts
Watch this address.
Get an email when NewYorkDaily detects a material change in the public DOB records associated with 21 Polhemus Place.
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 3 matched filings, in the order it was recorded. A date marks what entered the public record, not what happened on site.
- Alteration filed01
File PL workt through the building in conjunction with OT job # B00542929. Filing B00542956-I1.
- Alteration approved02
Filing B00542956-I1 reached an approved status.
- Alteration filed03
RENOVATE (8) APT UNITS & COMMON HALLWAY FROM CELLAR TO ROOF, INCLUDE REMOVING AND INSTALLING NEW INTERIOR NON-LOAD BEARING PARTITIONS,, MECHANICAL, LIGHTING AND FINISH WORK. NO CHANGE TO USE, EGRESS OR OCCUPANCY. PL filed seperately. Filing B00542929-I1.
- Alteration approved04
Filing B00542929-I1 reached an approved status.
- Permit recorded for alteration05
DOB lists a first permit date for B00542929-I1. That is not by itself confirmation of activity on site.
- Permit recorded for alteration06
DOB lists a first permit date for B00542956-I1. That is not by itself confirmation of activity on site.
- Alteration filed07
RENOVATE (8) APT UNITS & COMMON HALLWAY FROM CELLAR TO ROOF, INCLUDE REMOVING AND INSTALLING NEW INTERIOR NON-LOAD BEARING PARTITIONS,, MECHANICAL, LIGHTING AND FINISH WORK. NO CHANGE TO USE, EGRESS OR OCCUPANCY. PL filed seperately. Filing B00542929-P2.
- Alteration approved08
Filing B00542929-P2 reached an approved status.
- Alteration now approved09
The latest status recorded for B00542929-P2 is “Approved.”
- Alteration signed off010
DOB recorded a sign-off for B00542929-I1.
- Alteration now completed011
The latest status recorded for B00542929-I1 is “LOC Issued.”
- Alteration signed off012
DOB recorded a sign-off for B00542956-I1.
- Alteration now completed013
The latest status recorded for B00542956-I1 is “LOC Issued.”