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NYC Building Records · BBL 3070030041

3703 NAUTILUS AVENUE

Brooklyn · Block 7003 · Lot 41 · Two-family brick (Class B1)

3703 NAUTILUS AVENUE is a Class B1 (two-family brick) building in Brooklyn (BBL 3070030041) built in 1945, with 2 residential units across 1 floor.

The building is in NYC community district 313, council district 47, zoning district R3-1, on a 2,200-square-foot lot with a building footprint of 1,851 square feet.

The current registered owner of record per NYC PLUTO is MAYCHENKO, KATHERINE.

The most recent ACRIS deed transfer for this BBL was recorded on July 28, 2022 when FONINSKIY, VALERIY; FONINSKIY, ZHANNA conveyed the property to MAYCHENKO, KATHERINE for $690K. The transaction was financed with a $552K mortgage from Mers; Finance Of America Mortgage Llc.

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

MAYCHENKO, KATHERINE

Most recent deed

Last transferred on Jul 28, 2022 for $690K to MAYCHENKO, KATHERINE.
Previous owner: FONINSKIY, VALERIY; FONINSKIY, ZHANNA
Mortgage: $552K recorded Jul 28, 2022 with Mers; Finance Of America Mortgage Llc. Loan-to-value: 80%.
🔒 See all transfers before the 2022 sale →

Recent ACRIS documents (last 4)

DateTypeAmountParties
Feb 26, 2026SATNot disclosedParties redacted — full names in MetroDeeds Scout+
Jul 28, 2022MTGE$552KParties redacted — full names in MetroDeeds Scout+
Jul 28, 2022DEED$690KParties redacted — full names in MetroDeeds Scout+
Feb 28, 2011DEED$10Parties redacted — full names in MetroDeeds Scout+
🔒 Reveal the 4 redacted buyer/seller names above →

Building stats

Units
2
Year built
1945
Class
B1
Borough
Brooklyn
Zoning:
R3-1
Lot size:
2,200 sqft
Building area:
1,851 sqft
Floors:
1
Assessed value:
$37K
Community district:
313
Council district:
47

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 violation issued by NYC HPD at this address:
  • Class BInspected Dec 18, 2013
    § 27-2046.1, 2046.2 HMC: PROVIDE AN APPROVED AND OPERATIONAL CARBON MONOXIDE DETECTING DEVICE, INSTALLED IN ACCORDANCE WITH APPLICABLE LAW A…
🔒 See closure dates + classification on archived violations →

Recent ACRIS activity

4 documents in the last 5 years (most recent Feb 26, 2026).

Frequently asked questions about 3703 NAUTILUS AVENUE

Who owns 3703 NAUTILUS AVENUE?

The current registered owner of record for 3703 NAUTILUS AVENUE per NYC PLUTO is MAYCHENKO, KATHERINE. The most recent ACRIS deed transfer for this BBL was recorded on July 28, 2022 when the property was conveyed to MAYCHENKO, KATHERINE. 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 3703 NAUTILUS AVENUE last sold?

The most recent ACRIS deed transfer for 3703 NAUTILUS AVENUE was recorded on July 28, 2022, when FONINSKIY, VALERIY; FONINSKIY, ZHANNA conveyed the property to MAYCHENKO, KATHERINE for $690K. The transaction was financed with a $552K mortgage from Mers; Finance Of America Mortgage Llc.

How many HPD violations does 3703 NAUTILUS AVENUE have?

No open HPD housing-maintenance code violations are on record for 3703 NAUTILUS AVENUE. The building is not registered with NYC HPD's landlord-registration system, which is typical for owner-occupied 1-2 family dwellings. HPD violation data is pulled daily from the NYC Open Data violations feed.

What is the assessed value of 3703 NAUTILUS AVENUE?

NYC Department of Finance assesses 3703 NAUTILUS AVENUE at $37K 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 3703 NAUTILUS AVENUE and what does that mean?

3703 NAUTILUS AVENUE is NYC building class B1 — Two-family brick. A two-family residential building of brick construction, typically owner-occupied. 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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