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NYC Building Records · BBL 1009230015

321 EAST 17 STREET

Manhattan · Block 923 · Lot 15 · Hospital / health-related building (Class I4)

321 EAST 17 STREET is a Class I4 (hospital / health-related building) building in Manhattan (BBL 1009230015) built in 1910, with 6 residential units across 5 floors.

The building is in NYC community district 106, council district 2, zoning district R8A, on a 2,014-square-foot lot with a building footprint of 6,651 square feet.

The current registered owner of record per NYC PLUTO is 317 EAST 17TH STREET LLC.

The most recent ACRIS deed transfer for this BBL was recorded on December 16, 2024 when BETH ISRAEL MEDICAL CENTER conveyed the property to 317 EAST 17TH STREET LLC for $6.02M. The transaction was financed with a $27.50M mortgage from G4 18274, Llc.

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

317 EAST 17TH STREET LLC
HPD-registered head officer: Ari Koth

HPD registered contacts

People legally accountable to HPD for conditions at this building, in registration-priority order:
  • Head OfficerAri Koth
  • Corporate OwnerThree One Three LLC

Most recent deed

Last transferred on Dec 16, 2024 for $6.0M to 317 EAST 17TH STREET LLC.
Previous owner: BETH ISRAEL MEDICAL CENTER
Mortgage: $27.5M recorded Dec 16, 2024 with G4 18274, Llc. Loan-to-value: 457%.
🔒 See all transfers before the 2024 sale →

Recent ACRIS documents (last 4)

DateTypeAmountParties
Dec 16, 2024DEED$6.0MParties redacted — full names in MetroDeeds Scout+
Dec 16, 2024MTGE$27.5MParties redacted — full names in MetroDeeds Scout+
Sep 5, 2007AGMTNot disclosedParties redacted — full names in MetroDeeds Scout+
Jul 27, 2005AGMTNot disclosedParties redacted — full names in MetroDeeds Scout+
🔒 Reveal the 4 redacted buyer/seller names above →

Building stats

Units
6
Year built
1910
Class
I4
Borough
Manhattan
Zoning:
R8A
Lot size:
2,014 sqft
Building area:
6,651 sqft
Floors:
5
Assessed value:
$539K
Community district:
106
Council district:
2

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 IInspected Nov 17, 2025
    §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 AInspected Feb 15, 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…
  • Class IInspected Oct 5, 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 Oct 24, 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 CInspected Oct 17, 2015
    SECTION 27-2005 ADM CODE PROPERLY SECURE THE LOOSE WOOD TREAD # 2 FROM BOTTOM UP AT AT PUBLIC HALL STAIRS, 3rd STORY
🔒 See closure dates + classification on archived violations →

Recent ACRIS activity

4 documents in the last 5 years (most recent Dec 16, 2024).

Other buildings in this portfolio

317 EAST 17TH STREET LLC controls 2 NYC buildings. Top properties by HPD violation count:

Frequently asked questions about 321 EAST 17 STREET

Who owns 321 EAST 17 STREET?

The current registered owner of record for 321 EAST 17 STREET per NYC PLUTO is 317 EAST 17TH STREET LLC. The most recent ACRIS deed transfer for this BBL was recorded on December 16, 2024 when the property was conveyed to 317 EAST 17TH STREET LLC. PLUTO ownership is refreshed monthly by NYC Department of Finance; the registered owner may not reflect transactions recorded within the last 30 days.

When was 321 EAST 17 STREET last sold?

The most recent ACRIS deed transfer for 321 EAST 17 STREET was recorded on December 16, 2024, when BETH ISRAEL MEDICAL CENTER conveyed the property to 317 EAST 17TH STREET LLC for $6.02M. The transaction was financed with a $27.50M mortgage from G4 18274, Llc.

How many HPD violations does 321 EAST 17 STREET have?

No open HPD housing-maintenance code violations are on record for 321 EAST 17 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 321 EAST 17 STREET?

NYC Department of Finance assesses 321 EAST 17 STREET at $539K 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 321 EAST 17 STREET and what does that mean?

321 EAST 17 STREET is NYC building class I4 — Hospital / health-related building. Hospital / health-related building. 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.

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