50 Mapleton Avenue, Staten Island, NY 10306
BBL 5038080028 (Borough 5, Block 3808, Lot 28) · BIN 5171769, 5169510 · Last updated: · New Dorp-Midland Beach · ZIP 10306
Also recorded in city data as: 48 Mapleton Ave
Summary · as of November 8, 2026
50 Mapleton Avenue (Staten Island, NY 10306; tax lot BBL 5038080028) is a one-family home (building class A5: one-family home, attached or semi-detached), built around 2019, on a 2,025 sq ft lot zoned R3-1. City tax records list the owner as DONG, XU JIN. The Department of Finance's final market value for tax year 2027 is $806,000. As of November 8, 2026, NYC Open Data shows no open DOB jobs, active DOB/ECB violations, open HPD violations or unpaid OATH tickets for this lot. There were no 311 requests in the past 12 months and two HPD complaints since 2019. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)
- Owner of record
- DONG, XU JIN
- Building class
- A5 · One-family home, attached or semi-detached
- Year built · units
- 2019 · 1 res.
- Lot area · zoning
- 2,025 sq ft · R3-1
- Market value (DOF)
- $806,000 FY2027
- Last priced deed
- —
- BBL
- 5038080028
- BIN
- 5171769, 5169510
- 0Open DOB jobs (permit issued, no sign-off)
- 0Active DOB violations
- 0Active ECB violations
- 0Open HPD violations
- 0OATH tickets with unpaid balance
How to cite: NYC Property Facts, “50 Mapleton Avenue, Staten Island, NY 10306 (BBL 5038080028)”, data as of 2026-11-08, https://nycpropertyfacts.com/ny/staten-island/50-mapleton-avenue-5038080028. Source: NYC Open Data.
Lot & building
Basic facts about the tax lot and building from the city’s PLUTO database.
- Owner (as listed by the city)
- DONG, XU JINThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
- Building class
- A5 – One-family home, attached or semi-detachedThe Department of Finance’s category for what kind of building this is.
- Land use
- One- & two-family buildingsCity Planning’s broad category of how the lot is used.
- Year built
- 2019Often an estimate for older buildings. Major alteration recorded: 2019.
- Floors
- 3
- Units
- 1 residential / 1 totalResidential units are apartments; total includes stores and offices.
- Buildings on lot
- 1
- Lot size
- 2,025 sq ft (20.25 ft × 100 ft)
- Building floor area
- 1,834 sq ft
- Zoning
- R3-1The zoning district sets what can be built and used here. Residential district.
- Built vs. allowed density (FAR)
- 0.91 built / 0.75 max residentialFloor Area Ratio = building floor area ÷ lot area. If built FAR is below the maximum, zoning may allow more floor area (other rules apply).
- Identifiers
- BBL 5038080028 (Borough 5, Block 3808, Lot 28) · BIN 5171769, 5169510BBL identifies the tax lot; BIN identifies each building (from DOB/HPD/footprint records).
Agency lookups: DOB BIS · ZoLa (zoning map) · ACRIS
Source: PLUTO (Dept. of City Planning) — city dataset updated 2026-08-24; last loaded 2026-11-08; Building Footprints — city dataset updated 2026-11-08; last loaded 2026-11-08
Tax assessment
How the Department of Finance values this lot for property tax.
- Market value (tax year 2027, final roll)
- $806,000The Department of Finance’s estimate of value for tax purposes. It is not an appraisal and is often far from the sale price.
- Assessed value
- $48,360The portion of market value that taxes are calculated on (capped by law for small homes).
- Taxable value (final)
- $42,135Assessed value minus any exemptions.
- Tax class
- Tax class 1 – 1–3 family homes (and some small mixed-use / vacant lots)
| Tax year | Roll | Market value | Assessed value | Tax class |
|---|---|---|---|---|
| 2027 | Final | $806,000 | $48,360 | 1 |
| 2026 | Final | $669,000 | $40,140 | 1 |
| 2025 | Final | $625,000 | $37,500 | 1 |
Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; last loaded 2026-11-08
Sales & deed history 0
Deeds recorded with the City Register (ACRIS). A deed transfers ownership. A $0 or very low price usually means a transfer between related parties, an estate, or a refinance-related transfer, not a market sale. This is not a title search; mortgages, liens and other documents are not shown.
No records found in this dataset for this lot.
Source: ACRIS Real Property Master — city dataset updated 2026-10-08; last loaded 2026-11-08; ACRIS Real Property Legals — city dataset updated 2026-10-08; last loaded 2026-11-08; ACRIS Real Property Parties — city dataset updated 2026-10-08; last loaded 2026-11-08
DOB job filings 0 open of 1
A “job” is an application to the Department of Buildings to do construction work. A job marked Permitted, not signed off had a work permit issued but the city has no record of final sign-off (inspection/completion). Old jobs left in this state are common and appear in buyer and lender due diligence; the work may or may not have been done.
| Status | Job # | Type | Filed | Est. cost |
|---|---|---|---|---|
| Not open SIGNED OFF · 2020-06-26 | 520294958 BIS | NB – New building | 2017-03-15 | — |
Source: DOB NOW: Build – Job Application Filings — city dataset updated 2026-11-07; last loaded 2026-11-08; DOB Job Application Filings (BIS) — city dataset updated 2026-11-07; last loaded 2026-11-08
Work permits 5
Individual permits issued under DOB jobs (one job can have several permits, e.g. plumbing and construction). Permit expiration alone does not mean the job was completed or signed off.
| Issued | Expires | Job # | Work | Permit status |
|---|---|---|---|---|
| 2019-12-17 | 2020-12-12 | 520294958 BIS | New building | ISSUED (renewal) |
| 2019-12-17 | 2020-12-16 | 520294958 BIS | Construction equipment (scaffold, fence, shed) / Construction equipment | ISSUED (renewal) |
| 2019-04-16 | 2020-10-31 | 520294958 BIS | Plumbing / Plumbing | ISSUED (initial) |
| 2018-12-18 | 2019-12-18 | 520294958 BIS | Construction equipment (scaffold, fence, shed) / Construction equipment | ISSUED (initial) |
| 2018-12-18 | 2019-12-12 | 520294958 BIS | New building | ISSUED (initial) |
Source: DOB NOW: Build – Approved Permits — city dataset updated 2026-11-07; last loaded 2026-11-08; DOB Permit Issuance (BIS) — city dataset updated 2026-11-07; last loaded 2026-11-07
DOB violations 0 active of 0
Violations issued by the Department of Buildings for building-code or zoning conditions. Active means DOB has not recorded the violation as resolved or dismissed. Many active DOB violations are old (e.g. elevator or boiler inspection paperwork).
No records found in this dataset for this lot.
Source: DOB Violations — city dataset updated 2026-11-07; last loaded 2026-11-08
ECB violations (DOB) 0 active of 4
DOB violations that go to a hearing at OATH (formerly the Environmental Control Board) and can carry fines. Active or Resolved follows the DOB violation status field. The hearing status is about the hearing and its penalty: written off means the city stopped collecting the fine, not that the condition was corrected. A balance due is a fine the city says is unpaid.
| Status | Issued | Severity | What it was for | Penalty / paid / balance | ECB # |
|---|---|---|---|---|---|
| Resolved Hearing: STIPULATION/IN-VIO · Certification: CERTIFICATE ACCEPTED | 1999-01-11 | Non-Hazardous | WORK WITHOUT A PERMIT. NOTED: EXTENSIVE CONSTRUCTION AT REAR OF LOT WHICH INCLUDES: 1) AN L-SHAPED DECK APPROX. 18'X35'X8' ABOVE GROUND. 2) A 20'X20' 1 STORY BLDG. UNDER DECK. 3) A 2 STORY BLDG CONSTRUCTED | $500 / $500 / $0 | 34181963J |
| Resolved Hearing: CURED/IN-VIO · Certification: CURE ACCEPTED | 2019-11-07 | CLASS - 2 | CONSTRUCTION FENCE AT TIM EOF INSPOECTION OBSERVED 3 SEPERATE STRUCTURES UNDER 5 DIFFERENT PERMITS ENCLOSED ON SAME LOT CONSTRUCTION FENCE MISSING ON EPX #2 & #3 SWINGING GATES BEIN USED AS EGRESS EXP#1 OPEN ST | $0 / $0 / $0 | 35457010L |
| Resolved Hearing: CURED/IN-VIO · Certification: CURE ACCEPTED | 2019-05-23 | CLASS - 2 | FAILURE TO MAINTAIN CONSTRUCTION FENCE. AT TIME OF INSPECTION OF AN INACTIVE 2 FAMILY 3 STY NEW BLDG JOBSITE. I OBSERVED CONSTRUCTION FENCE ON EXP#1. LEANING TOWARDS THE SIDEWALK WHERE PEDESTRAINS WALK,MAKING | $0 / $0 / $0 | 35422955K |
| Resolved Hearing: CURED/IN-VIO · Certification: CURE ACCEPTED | 2019-05-23 | CLASS - 2 | FAILURE TO MAINTAIN ADEQUATE HOUSEKEEPING. AT TIME OF INSPECTION OF ANINACTIVE 2 FAMILY 3 STY NEW BLDG JOBSITE. I OBSERVED INAFDEQUATE HOUSEKEEPING THROUGHOUT THE SITE GARBAGE & CONSTRUCTION MATERIALS SCATTERED | $0 / $0 / $0 | 35422954Z |
Source: DOB ECB Violations — city dataset updated 2026-11-07; last loaded 2026-11-08
OATH tickets (all agencies) 0 unpaid of 8
Summonses heard at the Office of Administrative Trials and Hearings, from agencies like Sanitation, Buildings, Fire and Health, linked to this lot’s block and lot. Default means the respondent did not appear at the hearing, which typically results in the maximum penalty. Tickets may be issued to tenants or businesses at the address, not just the owner. DOB ECB tickets appear here too.
| Status | Date | Agency | Charge | Respondent | Imposed / paid / balance | Ticket # |
|---|---|---|---|---|---|---|
| No balance due PAID IN FULL | 2025-01-29 | Dos - Enforcement Agents | IMPROPER MISUSED CURBSIDE RECYCLING CONTAINER 1 TO 8 DWELLING UNITS | DONG XU JIN | $25 / $25 / $0 | 048903116Z |
| No balance due PAID IN FULL | 2024-04-24 | Dos - Enforcement Agents | RECYC PLACED FOR COLLECTION W NON-RECYC 1 TO 8 DWELLING UNITS | DONG XU JIN | $25 / $25 / $0 | 048439210Z |
| No balance due PAID IN FULL | 2024-02-28 | Dos - Enforcement Agents | IMPROPER DISPOSAL--BEDDING 1ST OCCURRENCE | DONG XU JIN | $50 / $50 / $0 | 048324244R |
| No balance due HEARING COMPLETED · DISMISSED | 2024-02-28 | Sanitation Others | IMPROPER DISPOSAL--BEDDING 1ST OCCURRENCE | DONG XU JIN | $0 / $0 / $0 | 048153190R |
| No balance due HEARING COMPLETED · DISMISSED | 2024-01-12 | Dos - Enforcement Agents | STORAGE OF RECEPTACLE PLACED OUT PRIOR TO 8PM IN UNCOVERED RECEPTACLE | DONG XU JIN | $0 / $0 / $0 | 048235492L |
| No balance due HEARING COMPLETED · IN VIOLATION | 2019-11-07 | Dept. Of Buildings | JOB SITE FENCE NOT CONSTRUCTED OR MAINTAINED PURSUANT TO SECTION | OUR ISLAND PROPERTY MNGT | $0 / $0 / $0 | 035457010L |
| No balance due HEARING COMPLETED · IN VIOLATION | 2019-05-23 | Dept. Of Buildings | JOB SITE FENCE NOT CONSTRUCTED OR MAINTAINED PURSUANT TO SUBSECTION | OUR ISLAND PROPERTY MANAG | $0 / $0 / $0 | 035422955K |
| No balance due HEARING COMPLETED · IN VIOLATION | 2019-05-23 | Dept. Of Buildings | FAILURE TO MAINTAIN ADEQUATE HOUSEKEEPING PER SECTION REQUIREMENTS | OUR ISLAND PROPERTY MANAG | $0 / $0 / $0 | 035422954Z |
Source: OATH Hearings Division Case Status — city dataset updated 2026-11-08; last loaded 2026-11-08
HPD registration & contacts
Owners of most rental buildings must register with the Department of Housing Preservation and Development each year and list an owner and managing agent.
No HPD registration found. Registration is required for buildings with 3 or more apartments (and for 1–2 family homes where neither the owner nor family lives there).
Source: HPD Multiple Dwelling Registrations — city dataset updated 2026-11-04; last loaded 2026-11-08; HPD Registration Contacts — city dataset updated 2026-11-04; last loaded 2026-11-08
HPD housing-code violations 0 open of 0
Violations HPD inspectors issued for conditions in residential buildings (heat, leaks, mold, pests, lead paint, etc.). Class letters show how serious: Class A – non-hazardous (HPD gives 90 days to correct); Class B – hazardous (30 days to correct); Class C – immediately hazardous (24 hours to correct for most conditions); Class I – information / order (e.g. orders to register, lead or other administrative orders). Open means HPD has not recorded the condition as corrected.
No records found in this dataset for this lot.
Source: HPD Housing Maintenance Code Violations — city dataset updated 2026-11-08; last loaded 2026-11-08
HPD complaints 2
Complaints tenants or others made to HPD (usually via 311) about housing conditions, from 2019 onward. A complaint is not a violation; HPD may inspect and issue one.
| Received | Status | Apt | Problem(s) | Outcome |
|---|---|---|---|---|
| 2022-03-11 | CLOSE | BLDG | Heat/Hot Water – Entire Building | The Department of Housing Preservation and Development responded to a complaint of no heat or hot water and was advised by a tenant in the building that heat and hot water had been restored. If the co |
| 2021-06-02 | CLOSE | 1STFLO | Water Leak – Heavy Flow Heat/Hot Water – Apartment Only | The Department of Housing Preservation and Development inspected the following conditions. No violations were issued. The complaint has been closed. |
Source: HPD Housing Maintenance Code Complaints and Problems — city dataset updated 2026-11-08; last loaded 2026-11-08
311 requests (last 12 months) 0
Recent 311 service requests the city geocoded to this lot: noise, illegal parking, heat, sanitation and more. Anyone can file them, so they describe activity at or near the address, not necessarily the building itself.
No records found in this dataset for this lot.
Source: 311 Service Requests from 2020 to Present — city dataset updated 2026-11-07; last loaded 2026-11-07; a later sync attempt failed on 2026-11-08; showing the last successful load
Nearby properties
Ordered by map distance among lots on this street within 40 house numbers and on this tax block within 15 lot numbers.
More in New Dorp-Midland Beach: Open HPD violations · Active DOB violations · Active ECB violations · Open DOB jobs · Unpaid OATH tickets
Closest on Mapleton Ave
- 50 Mapleton Avenue (21 ft)
- 50 Mapleton Avenue (22 ft) (three open items)
- 50 Mapleton Avenue (44 ft)
- 52 Mapleton Avenue (48 ft) (10 open items)
- 40 Mapleton Avenue (76 ft)
- 49 Mapleton Avenue (153 ft)
Same tax block (3808), closest first
- Olympia Boulevard (71 ft) (one open item)
- Mapleton Avenue (76 ft)
- 215 Colony Avenue (85 ft)
- 1022 Olympia Boulevard (89 ft) (one open item)
- 223 Colony Avenue (96 ft)
- 1024 Olympia Boulevard (109 ft)
All properties on Mapleton Ave, Staten Island · Staten Island 10306
Open-item counts as of November 8, 2026; each section lists its own dataset date. Machine-readable: JSON API · Markdown · Plain text · API & MCP docs