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NYC Building Records · BBL 3057910001

6123 4 AVENUE

Brooklyn · Block 5791 · Lot 1 · Walk-up + store (Class C7)

6123 4 AVENUE is a Class C7 (walk-up + store) building in Brooklyn (BBL 3057910001) built in 1912, with 13 residential units across 4 floors.

The building is in NYC community district 307, council district 38, zoning district R7A, on a 2,500-square-foot lot with a building footprint of 9,250 square feet.

The current registered owner of record per NYC PLUTO is 6123 REALTY LLC.

MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.

The building is registered with NYC HPD's landlord-registration system and has no open HPD housing-maintenance code violations on record as of May 18, 2026.

Data sourced daily from NYC PLUTO (Department of City Planning), NYC ACRIS (Department of Finance), and NYC HPD housing-maintenance code violations.

Owner of record

6123 REALTY LLC
HPD-registered head officer: KIM CHEUNG

HPD registered contacts

People legally accountable to HPD for conditions at this building, in registration-priority order:
  • Head OfficerKIM CHEUNG
  • Corporate Owner6123 REALTY LLC

Most recent deed

Most recent ACRIS document: MTGE recorded Mar 7, 2013.
🔒 See the full deed history for this building →

Recent ACRIS documents (last 1)

DateTypeAmountParties
Mar 7, 2013MTGE$700KParties redacted — full names in MetroDeeds Scout+
🔒 Reveal the redacted buyer/seller name above →

Building stats

Units
13
Year built
1912
Class
C7
Borough
Brooklyn
Zoning:
R7A
Lot size:
2,500 sqft
Building area:
9,250 sqft
Floors:
4
Assessed value:
$521K
Community district:
307
Council district:
38

HPD violations

0 open
Most severe class on record: Class C (immediately hazardous)
No open violations on record. Source: NYC HPD.
🔒 See every closed violation + inspection history →

Recent HPD violation details

Most recent 5 violations issued by NYC HPD at this address:
  • Class AInspected Apr 30, 2026
    (A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPD…
  • Class AInspected Jun 5, 2025
    (A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPD…
  • Class AInspected Apr 3, 2024
    (A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPD…
  • Class AInspected Mar 17, 2023
    (A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPD…
  • Class AInspected Feb 18, 2022
    (A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPD…
🔒 See closure dates + classification on archived violations →

Recent ACRIS activity

1 document in the last 5 years (most recent Mar 7, 2013).

Frequently asked questions about 6123 4 AVENUE

Who owns 6123 4 AVENUE?

The current registered owner of record for 6123 4 AVENUE per NYC PLUTO is 6123 REALTY LLC. MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.

When was 6123 4 AVENUE last sold?

MetroDeeds shows no confirmed ACRIS deed transfer for 6123 4 AVENUE in the last 5 years of recorded NYC public-records data. NYC ACRIS coverage extends back to 1966; an absence in our 5-year window typically means either the BBL has not transacted recently, or the most recent recorded document is not a DEED type (such as a refinance rather than a sale).

How many HPD violations does 6123 4 AVENUE have?

No open HPD housing-maintenance code violations are on record for 6123 4 AVENUE as of May 18, 2026. The building is registered with NYC HPD's landlord-registration system. HPD violation data is pulled daily from the NYC Open Data violations feed.

What is the assessed value of 6123 4 AVENUE?

NYC Department of Finance assesses 6123 4 AVENUE at $521K for the current tax year. NYC assesses property at a fraction of estimated market value (the assessment ratio varies by tax class — 6% for tax class 1 one-to-three-family dwellings, approximately 45% for tax class 2 rental apartment buildings), so the market value implied by this assessment is meaningfully higher. Assessment data is published by NYC Department of Finance.

What building class is 6123 4 AVENUE and what does that mean?

6123 4 AVENUE is NYC building class C7 — Walk-up + store. A walk-up apartment building with a store on the ground floor. Building class is assigned by NYC Department of Finance and recorded in PLUTO; it determines the property's tax class and the regulatory regime that applies.

More from MetroDeeds

Go deeper on this building

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