100 SOUTH 9 STREET
100 SOUTH 9 STREET is a Class D7 (elevator, post-1929) building in Brooklyn (BBL 3021460015) built in 1920, with 50 residential units across 1 floor.
The building is in NYC community district 301, council district 34, zoning district R6, on a 10,000-square-foot lot with a building footprint of 51,415 square feet.
The current registered owner of record per NYC PLUTO is 100 S 9 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
HPD registered contacts
- Head OfficerMichael Weitzman
- Corporate Owner100 S 9 LLC
- Managing AgentDouble U Developement LLC
- Site ManagerFroebel Castro
Most recent deed
Recent ACRIS documents (last 2)
Building stats
- Zoning:
- R6
- Lot size:
- 10,000 sqft
- Building area:
- 51,415 sqft
- Floors:
- 1
- Assessed value:
- $4.6M
- Community district:
- 301
- Council district:
- 34
HPD violations
Recent HPD violation details
Recent ACRIS activity
Frequently asked questions about 100 SOUTH 9 STREET
Who owns 100 SOUTH 9 STREET?
The current registered owner of record for 100 SOUTH 9 STREET per NYC PLUTO is 100 S 9 LLC. MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.
When was 100 SOUTH 9 STREET last sold?
MetroDeeds shows no confirmed ACRIS deed transfer for 100 SOUTH 9 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 100 SOUTH 9 STREET have?
No open HPD housing-maintenance code violations are on record for 100 SOUTH 9 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 100 SOUTH 9 STREET?
NYC Department of Finance assesses 100 SOUTH 9 STREET at $4.56M 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 100 SOUTH 9 STREET and what does that mean?
100 SOUTH 9 STREET is NYC building class D7 — Elevator, post-1929. A post-1929 elevator apartment building, typically 7+ stories. 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.