Alteration filingJun 22
DOB filing B00429635-S2
Alteration filing at 4812 7 Avenue
Recorded as completed3 proposed stories
Open filing Building record · BIN 3012727
4812 7 Avenue
4812 7 Avenue, Brooklyn, NY 11220
A consolidated, filing-by-filing view of DOB records matched to this building identifier. The current snapshot links 8 independently sourced records, including 4 that are not recorded as completed, closed or withdrawn.
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BUILDING RECORD · BIN 3012727
4812 7 Avenue
Sunset Park (Central), Brooklyn
A consolidated public-record view · updated Jun 22, 2026
- DOB filings
- 8
- Active-status
- 4
- Recorded addresses
- 1
A building-level summary of matched filings, active-status records and published identifiers.
Matched filings8
Open or active-status records4
First included filingOct 30, 2019
Latest recorded changeJun 22, 2026
The lot
What is already here?
The lot holds a 3-story office building built in 1919, with 4 homes, on a 2,500 sq ft lot.
- Floors 2–3Homes4 homes are recorded on this lot — about 2 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 mixed residential and commercial, so this floor is where the commercial space is.
- Street levelMixed residential and commercial
- Homes4 recorded on the lot
- Above the southern skylineFrom about floor 7 — the tallest thing within 60 m to the south is 18.3 m
- Built
- 1919
- Last altered
- 2019
- Floors
- 3
- Residential units
- 4
- Building type
- Office building
- Land use
- Mixed residential and commercial
- Zoning district
- R7A
- Lot area
- 2,500 sq ft
- Building area
- 7,410 sq ft
Owner of record
CHEN LIU 640 51ST LLC
As the assessment roll records it. Only owners that read as a company are shown here; where the roll names an individual, nothing is published.
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
Violation record
Are there open violations here?
No open violations are recorded for this building. 3 notices are on file, all with a recorded resolution.
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 21, 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 3012727. They should not be read as a single construction project unless the underlying filings say so.
The matched set includes 8 alteration filing. Its latest status categories are 4 recorded as completed, 4 approved. Each filing page preserves its own status, dates, scope and source identifier.
- First included filing
- Oct 30, 2019
- Latest recorded change
- Jun 22, 2026
- Highest proposed story count
- 3 stories
- Highest proposed unit count
- 6 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 8 matched filings, in the order it was recorded. A date marks what entered the public record, not what happened on site.
- Alteration filed01
Proposed construction fence filed in conjunction with a1 job #321593940. Filing B00255639-I1.
- Permit recorded for alteration02
DOB lists a first permit date for B00255639-I1. That is not by itself confirmation of activity on site.
- Alteration filed03
Proposed boiler work as per plan. this application filed in conjunction with work at 4812 7 ave, a1 job# 321593940. no change in use, egress, or occupancy. Filing B00429635-I1.
- Alteration approved04
Filing B00429635-I1 reached an approved status.
- Permit recorded for alteration05
DOB lists a first permit date for B00429635-I1. That is not by itself confirmation of activity on site.
- Alteration filed06
Proposed construction fence filed in conjunction with a1 job #321593940. Filing B00255639-P1.
- Alteration approved07
Filing B00255639-P1 reached an approved status.
- Alteration now approved08
The latest status recorded for B00255639-P1 is “Approved.”
- Alteration filed09
Subsequent filling for the second type of boiler equipement. proposed boiler work as per plan. this application filed in conjunction with work at 4812 7 ave, a1 job# 321593940. no change in use, egress, or occupancy. Filing B00429635-S1.
- Alteration filed010
Proposed boiler work as per plan. this application filed in conjunction with work at 4812 7 ave, a1 job# 321593940. no change in use, egress, or occupancy. Filing B00429635-P1.
- Alteration signed off011
DOB recorded a sign-off for B00255639-I1.
- Alteration now completed012
The latest status recorded for B00255639-I1 is “LOC Issued.”
- Alteration approved013
Filing B00429635-S1 reached an approved status.
- Alteration approved014
Filing B00429635-P1 reached an approved status.
- Alteration now approved015
The latest status recorded for B00429635-P1 is “Approved.”
- Permit recorded for alteration016
DOB lists a first permit date for B00429635-S1. That is not by itself confirmation of activity on site.
- Alteration filed017
Proposed boiler work as per plan. this application filed in conjunction with work at 4812 7 ave, a1 job# 321593940. no change in use, egress, or occupancy. Filing B00429635-P4.
- Alteration filed018
Subsequent filling for the second type of boiler equipement. proposed boiler work as per plan. this application filed in conjunction with work at 4812 7 ave, a1 job# 321593940. no change in use, egress, or occupancy. Filing B00429635-P3.
- Alteration approved019
Filing B00429635-P3 reached an approved status.
- Alteration now approved020
The latest status recorded for B00429635-P3 is “Approved.”
- Alteration approved021
Filing B00429635-P4 reached an approved status.
- Alteration now approved022
The latest status recorded for B00429635-P4 is “Approved.”
- Alteration filed023
Subsequent filling for the boiler equipement. proposed boiler work as per plan. this application filed in conjunction with work at 4812 7 ave, a1 job# 321593940. no change in use, egress, or occupancy. Filing B00429635-S2.
- Alteration approved024
Filing B00429635-S2 reached an approved status.
- Permit recorded for alteration025
DOB lists a first permit date for B00429635-S2. That is not by itself confirmation of activity on site.
- Alteration signed off026
DOB recorded a sign-off for B00429635-I1.
- Alteration now completed027
The latest status recorded for B00429635-I1 is “LOC Issued.”
- Alteration signed off028
DOB recorded a sign-off for B00429635-S2.
- Alteration now completed029
The latest status recorded for B00429635-S2 is “LOC Issued.”
- Alteration signed off030
DOB recorded a sign-off for B00429635-S1.
- Alteration now completed031
The latest status recorded for B00429635-S1 is “LOC Issued.”