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NYC Building Records · BBL 3068940050

210 BAY 40 STREET

Brooklyn · Block 6894 · Lot 50 · Walk-up, 3+ families (Class C0)

210 BAY 40 STREET is a Class C0 (walk-up, 3+ families) building in Brooklyn (BBL 3068940050) built in 1940, with 3 residential units across 2 floors.

The building is in NYC community district 311, council district 43, zoning district R5, on a 1,933-square-foot lot with a building footprint of 2,300 square feet.

The current registered owner of record per NYC PLUTO is KO, MEI YUNG.

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

KO, MEI YUNG

HPD registered contacts

People legally accountable to HPD for conditions at this building, in registration-priority order:
  • Managing AgentMEI KO
  • Joint OwnerYUNYIN KO

Most recent deed

Last transferred on Sep 18, 2008 for $720K to Ko, Yun Yin; Ko, Mei Yung.
Previous owner: Cerbelli, Billy
Mortgage: $300K recorded Sep 18, 2008 with First American International Bank. Loan-to-value: 42%.
🔒 See full deed history for this building →

Recent ACRIS documents (last 4)

DateTypeAmountParties
Jan 27, 2012MTGE$45KParties redacted — full names in MetroDeeds Scout+
Jan 27, 2012AGMT$300KParties redacted — full names in MetroDeeds Scout+
Sep 18, 2008MTGE$300KParties redacted — full names in MetroDeeds Scout+
Sep 18, 2008DEED$720KParties redacted — full names in MetroDeeds Scout+
🔒 Unlock party names + multi-decade history →

Building stats

Units
3
Year built
1940
Class
C0
Borough
Brooklyn
Zoning:
R5
Lot size:
1,933 sqft
Building area:
2,300 sqft
Floors:
2
Assessed value:
$66K
Community district:
311
Council district:
43

HPD violations

0 open
Most severe class on record: Class A
No open violations on record. Source: NYC HPD.
🔒 See full violation history →

Recent HPD violation details

Most recent 5 violations issued by NYC HPD at this address:
  • Class IInspected Nov 26, 2024
    §27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE…
  • Class IInspected Oct 16, 2018
    §27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE…
  • Class IInspected Nov 20, 2017
    §27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE…
  • Class IInspected Nov 3, 2016
    SECTION27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE ?27-2097 AND IS THER…
  • Class IInspected Oct 7, 2015
    SECTION27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE ?27-2097 AND IS THER…
🔒 See full violation history with closure dates →

Recent ACRIS activity

4 documents in the last 5 years (most recent Jan 27, 2012).

Frequently asked questions about 210 BAY 40 STREET

Who owns 210 BAY 40 STREET?

The current registered owner of record for 210 BAY 40 STREET per NYC PLUTO is KO, MEI YUNG. MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.

When was 210 BAY 40 STREET last sold?

MetroDeeds shows no confirmed ACRIS deed transfer for 210 BAY 40 STREET 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 210 BAY 40 STREET have?

No open HPD housing-maintenance code violations are on record for 210 BAY 40 STREET 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 210 BAY 40 STREET?

NYC Department of Finance assesses 210 BAY 40 STREET at $66K 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 210 BAY 40 STREET and what does that mean?

210 BAY 40 STREET is NYC building class C0 — Walk-up, 3+ families. A 3-to-6-story walk-up apartment building (no elevator), 3 or more residential units. 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

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