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NYC Building Records · BBL 3028830009

432 HUMBOLDT STREET

Brooklyn · Block 2883 · Lot 9 · Walk-up, five to six (Class C2)

432 HUMBOLDT STREET is a Class C2 (walk-up, five to six) building in Brooklyn (BBL 3028830009) built in 1920, with 5 residential units across 3 floors.

The building is in NYC community district 301, council district 34, zoning district R6B, on a 1,875-square-foot lot with a building footprint of 3,750 square feet.

The current registered owner of record per NYC PLUTO is SIEKSTER PROPERTIES 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

SIEKSTER PROPERTIES LLC
HPD-registered head officer: STANISLAW SIEK

HPD registered contacts

People legally accountable to HPD for conditions at this building, in registration-priority order:
  • Head OfficerSTANISLAW SIEK
  • Corporate OwnerSIEKSTER PROPERTIES LLC

Most recent deed

Most recent ACRIS document: MTGE recorded Apr 12, 2018.
🔒 See the full deed history for this building →

Recent ACRIS documents (last 2)

DateTypeAmountParties
Apr 12, 2018MTGE$169KParties redacted — full names in MetroDeeds Scout+
Feb 8, 2013AGMT$850KParties redacted — full names in MetroDeeds Scout+
🔒 Reveal the 2 redacted buyer/seller names above →

Building stats

Units
5
Year built
1920
Class
C2
Borough
Brooklyn
Zoning:
R6B
Lot size:
1,875 sqft
Building area:
3,750 sqft
Floors:
3
Assessed value:
$559K
Community district:
301
Council district:
34

HPD violations

0 open
Most severe class on record: Class B
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 10, 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 23, 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 25, 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 AInspected Apr 9, 2021
    (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 BInspected Nov 2, 2011
    SECTION 27-2040 ADM CODE PROVIDE ADEQUATE LIGHTING AT OR NEAR THE OUTSIDE OF THE FRONT ENTRANCEWAY OF THE BUILDING AND KEEP SAME BURNING FRO…
🔒 See closure dates + classification on archived violations →

Recent ACRIS activity

2 documents in the last 5 years (most recent Apr 12, 2018).

Frequently asked questions about 432 HUMBOLDT STREET

Who owns 432 HUMBOLDT STREET?

The current registered owner of record for 432 HUMBOLDT STREET per NYC PLUTO is SIEKSTER PROPERTIES LLC. MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.

When was 432 HUMBOLDT STREET last sold?

MetroDeeds shows no confirmed ACRIS deed transfer for 432 HUMBOLDT 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 432 HUMBOLDT STREET have?

No open HPD housing-maintenance code violations are on record for 432 HUMBOLDT 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 432 HUMBOLDT STREET?

NYC Department of Finance assesses 432 HUMBOLDT STREET at $559K 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 432 HUMBOLDT STREET and what does that mean?

432 HUMBOLDT STREET is NYC building class C2 — Walk-up, five to six. A 3-to-6-story walk-up apartment building, 5-6 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

Go deeper on this building

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Every deed, every violation, court cases, mortgages, and operator portfolio — in one panel.
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