338 PROSPECT AVENUE
338 PROSPECT AVENUE is a Class C2 (walk-up, five to six) building in Brooklyn (BBL 3008680018) built in 1931, with 6 residential units across 3 floors.
The building is in NYC community district 307, council district 39, zoning district R6B, on a 2,204-square-foot lot with a building footprint of 4,125 square feet.
The current registered owner of record per NYC PLUTO is CALDER 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
HPD registered contacts
- Head OfficerJOSEPH CALDERONE
- Corporate OwnerCALDER REALTY, LLC
- Managing AgentSJC SERVICE SOLUTIONS, INC.
Most recent deed
Building stats
- Zoning:
- R6B
- Lot size:
- 2,204 sqft
- Building area:
- 4,125 sqft
- Floors:
- 3
- Assessed value:
- $885K
- Community district:
- 307
- Council district:
- 39
HPD violations
Recent HPD violation details
Frequently asked questions about 338 PROSPECT AVENUE
Who owns 338 PROSPECT AVENUE?
The current registered owner of record for 338 PROSPECT AVENUE per NYC PLUTO is CALDER 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 338 PROSPECT AVENUE last sold?
MetroDeeds shows no confirmed ACRIS deed transfer for 338 PROSPECT 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 338 PROSPECT AVENUE have?
No open HPD housing-maintenance code violations are on record for 338 PROSPECT 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 338 PROSPECT AVENUE?
NYC Department of Finance assesses 338 PROSPECT AVENUE at $885K 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 338 PROSPECT AVENUE and what does that mean?
338 PROSPECT AVENUE 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.