3821 NAUTILUS AVENUE
3821 NAUTILUS AVENUE is a Class C0 (walk-up, 3+ families) building in Brooklyn (BBL 3070020048) built in 1930, with 3 residential units across 3 floors.
The building is in NYC community district 313, council district 47, zoning district R3-1, on a 8,000-square-foot lot with a building footprint of 4,000 square feet.
The current registered owner of record per NYC PLUTO is LA ROSA, MARIA.
The most recent ACRIS deed transfer for this BBL was recorded on July 14, 2023 when La Rosa, Maria conveyed the property to Jennifer Larosa, As Trustee; Josephina Larosa-rivera, As Trustee; Gabriella Larosa, As Trustee; Maria La Rosa Trust for a non-disclosed consideration. The transaction was recorded as cash (no paired mortgage instrument).
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
- Site ManagerMARIA LAROSA
Most recent deed
Recent ACRIS documents (last 5)
Building stats
- Zoning:
- R3-1
- Lot size:
- 8,000 sqft
- Building area:
- 4,000 sqft
- Floors:
- 2.5
- Assessed value:
- $76K
- Community district:
- 313
- Council district:
- 47
HPD violations
Recent HPD violation details
- Class AInspected May 7, 2026(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 Nov 20, 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 Jun 12, 2025(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 Nov 27, 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 AInspected Apr 16, 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…
Recent ACRIS activity
Frequently asked questions about 3821 NAUTILUS AVENUE
Who owns 3821 NAUTILUS AVENUE?
The current registered owner of record for 3821 NAUTILUS AVENUE per NYC PLUTO is LA ROSA, MARIA. The most recent ACRIS deed transfer for this BBL was recorded on July 14, 2023 when the property was conveyed to Jennifer Larosa, As Trustee; Josephina Larosa-rivera, As Trustee; Gabriella Larosa, As Trustee; Maria La Rosa Trust. 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 3821 NAUTILUS AVENUE last sold?
The most recent ACRIS deed transfer for 3821 NAUTILUS AVENUE was recorded on July 14, 2023, when La Rosa, Maria conveyed the property to Jennifer Larosa, As Trustee; Josephina Larosa-rivera, As Trustee; Gabriella Larosa, As Trustee; Maria La Rosa Trust for a non-disclosed consideration. The transaction was recorded as cash (no paired mortgage instrument).
How many HPD violations does 3821 NAUTILUS AVENUE have?
No open HPD housing-maintenance code violations are on record for 3821 NAUTILUS 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 3821 NAUTILUS AVENUE?
NYC Department of Finance assesses 3821 NAUTILUS AVENUE at $76K 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 3821 NAUTILUS AVENUE and what does that mean?
3821 NAUTILUS AVENUE 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.