Alteration filingSep 24
DOB filing B01384971-S2
Alteration filing at 123 Guernsey Street
Recorded as completed4 proposed stories
Open filing Building record · BIN 3065515
123 Guernsey Street
123 Guernsey Street, Brooklyn, NY 11222
A consolidated, filing-by-filing view of DOB records matched to this building identifier. The current snapshot links 2 independently sourced records, including 1 that are not recorded as completed, closed or withdrawn.
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BUILDING RECORD · BIN 3065515
123 Guernsey Street
Greenpoint, Brooklyn
A consolidated public-record view · updated Sep 24, 2026
- DOB filings
- 2
- Active-status
- 1
- Recorded addresses
- 1
A building-level summary of matched filings, active-status records and published identifiers.
Matched filings2
Open or active-status records1
First included filingMay 21, 2026
Latest recorded changeSep 24, 2026
The lot
What is already here?
The lot holds a 4-story walk-up apartment building built in 1928, with 8 homes, on a 2,500 sq ft lot.
- Floors 2–4Homes8 homes are recorded on this lot — about 3 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
- Homes8 recorded on the lot
- Above the southern skylineFrom about floor 5 — the tallest thing within 60 m to the south is 14.8 m
- Built
- 1928
- Floors
- 4
- Residential units
- 8
- Building type
- Walk-up apartment building
- Land use
- Walk-up apartments
- Zoning district
- R6B
- Lot area
- 2,500 sq ft
- Building area
- 7,800 sq ft
Housing violations
2 violations are open against this address under the Housing Maintenance Code. 1 of them is the class the city calls immediately hazardous.
- 1Immediately hazardous
- 0Hazardous
- 1Non-hazardous
- 0Information order
Open means the Department of Housing Preservation and Development has not recorded it as corrected, which is not the same as nobody having fixed it. The city publishes the apartment each was written against; that is not carried here, because a count says a building has a problem and an apartment number says whose.
Owner of record
129 GUERNSEY 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 25, 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 11 notices on file; the most recent was issued Aug 16, 1993.
- Local law 62/91 - boilers
Issued Aug 16, 1993
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 25, 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 3065515. They should not be read as a single construction project unless the underlying filings say so.
The matched set includes 2 alteration filing. Its latest status categories are 1 recorded as completed, 1 under review. Each filing page preserves its own status, dates, scope and source identifier.
- First included filing
- May 21, 2026
- Latest recorded change
- Sep 24, 2026
- Highest proposed story count
- 4 stories
- Highest proposed unit count
- 13 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
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Recorded history
What has happened at this address?
Every dated event the city has published for this building, from all 2 matched filings, in the order it was recorded. A date marks what entered the public record, not what happened on site.
- Alteration filed01
Install new steel beam at removed bearing wall location and new steel angles lintel at the enlarged window opening. Filing B01384971-S2.
- Alteration approved02
Filing B01384971-S2 reached an approved status.
- Alteration filed03
Mh worktype inconjunction with application b01384971-i1. Filing B01384971-S4.
- Permit recorded for alteration04
DOB lists a first permit date for B01384971-S2. That is not by itself confirmation of activity on site.
- Alteration now under review05
The latest status recorded for B01384971-S4 is “Objections.”
- Alteration signed off06
DOB recorded a sign-off for B01384971-S2.
- Alteration now completed07
The latest status recorded for B01384971-S2 is “LOC Issued.”