# 421 Oak Avenue, New Dorp-Midland Beach, Staten Island, NY 10306 BBL 5040000005 · Block 4000 · Lot 5 · BIN 5055380 Canonical page: https://nycpropertyfacts.com/ny/staten-island/421-oak-avenue-5040000005 Last updated: 2026-10-31 · Open-item counts as of 2026-11-09 ## Summary 421 Oak Avenue (Staten Island, NY 10306; tax lot BBL 5040000005) is a one-family home (building class A1: one-family home, two stories, detached), built around 1960, on a 6,722 sq ft lot zoned R2. City tax records list the owner as DANIEL P. SLEVIN, TRUSTEE. The Department of Finance's final market value for tax year 2027 is $776,000. As of November 9, 2026, NYC Open Data shows no open DOB jobs, active DOB or DOB NOW safety violations, active ECB violations, open HPD violations or unpaid OATH tickets for this lot. There were three 311 requests in the past 12 months and no HPD complaints since 2019. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.) How to cite: NYC Property Facts, “421 Oak Avenue, Staten Island, NY 10306 (BBL 5040000005)”, data as of 2026-11-09, https://nycpropertyfacts.com/ny/staten-island/421-oak-avenue-5040000005. Source: NYC Open Data. ## Neighborhood New Dorp-Midland Beach: https://nycpropertyfacts.com/ny/staten-island/10306 - Open HPD violations: https://nycpropertyfacts.com/ny/staten-island/10306/open-hpd-violations - Active DOB violations: https://nycpropertyfacts.com/ny/staten-island/10306/active-dob-violations - Active ECB violations: https://nycpropertyfacts.com/ny/staten-island/10306/active-ecb-violations - Open DOB jobs: https://nycpropertyfacts.com/ny/staten-island/10306/open-dob-jobs - Unpaid OATH tickets: https://nycpropertyfacts.com/ny/staten-island/10306/unpaid-oath-tickets ## ZIP Staten Island 10306: https://nycpropertyfacts.com/ny/staten-island/10306 ## Nearby properties Ordered by map distance among lots on this street within 40 house numbers and on this tax block within 15 lot numbers. - 417 Oak Avenue (39 ft): https://nycpropertyfacts.com/ny/staten-island/417-oak-avenue-5040000007 - 415 Oak Avenue (60 ft): https://nycpropertyfacts.com/ny/staten-island/415-oak-avenue-5040000008 - 411 Oak Avenue (81 ft): https://nycpropertyfacts.com/ny/staten-island/411-oak-avenue-5040000009 - 409 Oak Avenue (102 ft): https://nycpropertyfacts.com/ny/staten-island/409-oak-avenue-5040000010 - 445 Oak Avenue (130 ft): https://nycpropertyfacts.com/ny/staten-island/445-oak-avenue-5040070045 - 405 Oak Avenue (138 ft): https://nycpropertyfacts.com/ny/staten-island/405-oak-avenue-5040000012 - Oak Avenue (250 ft): https://nycpropertyfacts.com/ny/staten-island/oak-avenue-5040000016 ## Open items | Item | Count | |---|---| | Open DOB jobs (permit issued, not signed off) | 0 | | Active DOB violations (BIS) | 0 | | Active DOB safety violations (DOB NOW) | 0 | | Active ECB violations | 0 | | Open HPD violations | 0 | | OATH tickets with unpaid balance | 0 | ## Lot & building - Owner of record: DANIEL P. SLEVIN, TRUSTEE - Building class: A1 – One-family home, two stories, detached - Year built: 1960 - Floors: 2 - Units: 1 residential / 1 total - Lot area: 6,722 sq ft · Building area: 1,768 sq ft - Zoning: R2 - Source: PLUTO (Dept. of City Planning) (https://data.cityofnewyork.us/d/64uk-42ks), city dataset updated 2026-08-24; last loaded 2026-11-09 ## Tax assessment - Tax year 2027 (final roll): market value $776,000, assessed value $46,560, tax class 1 - Source: DOF Property Valuation and Assessment Data (https://data.cityofnewyork.us/d/8y4t-faws) ## Sales & deeds (ACRIS) Deeds recorded with the City Register. amount 0 usually means a non-market transfer. lots_in_deed > 1 means the price covers several lots. No records found. ## Open DOB jobs and recent work permits A DOB "job" is an application to do construction work. status "open" = a permit was issued but DOB has no record of final sign-off. Work permits are listed with type "work_permit" and their DOB permit status (they are not counted as open items). | Date | Status | Description | Source | |---|---|---|---| | 2009-07-10 | n/a (ISSUED (initial)) | BIS work permit for job 520002470: Plumbing / Plumbing. Issued 2009-07-10, expires 2010-07-10. | ipu4-2q9a | | 2009-07-10 | n/a (ISSUED (initial)) | BIS work permit for job 520002470: Alteration. Issued 2009-07-10, expires 2010-01-29. | ipu4-2q9a | | 2009-07-10 | n/a (ISSUED (initial)) | BIS work permit for job 520002470: Construction equipment (scaffold, fence, shed) / Construction equipment. Issued 2009-07-10, expires 2010-01-29. | ipu4-2q9a | | 2002-01-10 | n/a (ISSUED (initial)) | BIS work permit for job 500489349: Plumbing / Plumbing. Issued 2002-01-10, expires 2003-01-10. | ipu4-2q9a | | 2001-09-26 | n/a (ISSUED (initial)) | BIS work permit for job 500489349: Equipment work / Other / general construction. Issued 2001-09-26, expires 2002-03-29. | ipu4-2q9a | ## Open violations (DOB, DOB NOW safety, ECB, HPD) status "open" = DOB violation category is ACTIVE, DOB NOW safety violation status is Active, ECB violation status is ACTIVE, or HPD violation status is Open. Dismissed, cured, waived and disputed-successfully safety violations are not open. No records found. ## DOB safety violations (DOB NOW) Active means the published violation status is Active. Dismissed, cured, waived, disputed successfully and pending dismissal are not open items. No records found. Source: DOB Safety Violations (DOB NOW) (https://data.cityofnewyork.us/Building/DOB-Safety-Violations/855j-jady), city dataset updated 2026-11-09; last loaded 2026-11-09 ## OATH tickets with unpaid balance or pending status "open" = balance due > $0 after a decision (cases awaiting a hearing are "pending"). default=true means the respondent did not appear. No records found. ## Complaints (HPD since 2019, 311 last 12 months) Complaints are reports, not violations. status mirrors the published complaint / request status. | Date | Status | Description | Source | |---|---|---|---| | 2026-10-25 | closed (Closed) | 311 request to DEP: Sewer Maintenance – Backup. | erm2-nwe9 | | 2026-10-25 | closed (Closed) | 311 request to DEP: Sewer Maintenance – Backup. | erm2-nwe9 | | 2025-12-06 | closed (Closed) | 311 request to DEP: Sewer – Sewer Backup (Use Comments) (SA). | erm2-nwe9 | ## Owners & contacts Owner of record comes from city tax records (PLUTO) and can lag behind recent sales. | Date | Status | Description | Source | |---|---|---|---| | 2026-08-24 | current | City tax records (PLUTO) list the owner as DANIEL P. SLEVIN, TRUSTEE. | 64uk-42ks | --- Independent site. Data from NYC Open Data; not affiliated with the City of New York. Not a title search or official record; verify with the issuing agency. JSON: https://nycpropertyfacts.com/api/v1/property/5040000005