446a Classon Avenue, Brooklyn, NY 11238
BBL 3019840048 (Borough 3, Block 1984, Lot 48) · BIN 3056927 · Last updated:
Also recorded in city data as: 446 A Classon Ave
Summary · as of November 6, 2026
446a Classon Avenue (Brooklyn, NY 11238; tax lot BBL 3019840048) is a two-family home (building class B3: two-family home converted from one-family), built around 1899, on a 1,500 sq ft lot zoned R6B. City tax records list the owner as ASHWORTH, JOHN; per ACRIS, a deed to this owner dated October 20, 2020 lists a price of $2,720,000. The Department of Finance's final market value for tax year 2027 is $2,738,000. As of November 6, 2026, NYC Open Data shows no open DOB jobs, active DOB/ECB violations, open HPD violations or unpaid OATH tickets for this lot. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)
- Owner of record
- ASHWORTH, JOHN
- Building class
- B3 · Two-family home converted from one-family
- Year built · units
- 1899 · 2 res.
- Lot area · zoning
- 1,500 sq ft · R6B
- Market value (DOF)
- $2,738,000 FY2027
- Last priced deed
- $2,720,000 · 2020-10-20
- BBL
- 3019840048
- BIN
- 3056927
- 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, “446a Classon Avenue, Brooklyn, NY 11238 (BBL 3019840048)”, data as of 2026-11-06, https://nycpropertyfacts.com/ny/brooklyn/446a-classon-avenue-3019840048. 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)
- ASHWORTH, JOHNThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
- Building class
- B3 – Two-family home converted from one-familyThe 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
- 1899Often an estimate for older buildings.
- Floors
- 3
- Units
- 2 residential / 2 totalResidential units are apartments; total includes stores and offices.
- Buildings on lot
- 1
- Lot size
- 1,500 sq ft (15 ft × 100 ft)
- Building floor area
- 2,688 sq ft
- Zoning
- R6BThe zoning district sets what can be built and used here. Residential district.
- Built vs. allowed density (FAR)
- 1.79 built / 2.00 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 3019840048 (Borough 3, Block 1984, Lot 48) · BIN 3056927BBL 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; data as of 2026-11-06; Building Footprints — city dataset updated 2026-10-25; data as of 2026-11-01
Tax assessment
How the Department of Finance values this lot for property tax.
- Market value (tax year 2027, final roll)
- $2,738,000The 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
- $164,280The portion of market value that taxes are calculated on (capped by law for small homes).
- Taxable value (final)
- $20,118Assessed 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 | $2,738,000 | $164,280 | 1 |
| 2026 | Final | $3,144,000 | $188,640 | 1 |
| 2025 | Final | $2,747,000 | $164,820 | 1 |
Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; data as of 2026-11-06
Sales & deed history 3
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.
| Date | Type | Price | Seller (grantor) | Buyer (grantee) | Doc ID |
|---|---|---|---|---|---|
| 2020-10-20 | DEED | $2,720,000 | Vadnai, Mandy; Vadnai, Noah | Ashworth, John; Vondriska, Michael | 2020102300103003 |
| 2014-06-25 | DEED | $1,936,400 | Warner, Michael; Berger, Jacquline | Vadnai, Mandy; Vadnai, Noah | 2014070101257001 |
| 2008-07-31 | DEED | $650,000 | Ethel G. Barnes As Executrix; Norman Mcfield Executor; Of The Estate Of Ashley Mckenzie | Berger, Jacqueline; Warner, Michael | 2008080500496001 |
Source: ACRIS Real Property Master — city dataset updated 2026-10-08; data as of 2026-11-06; ACRIS Real Property Legals — city dataset updated 2026-10-08; data as of 2026-11-06; ACRIS Real Property Parties — city dataset updated 2026-10-08; data as of 2026-11-06
DOB job filings 0 open of 10
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 Approved · 2022-08-18 | B00494042-P3 DOB NOW | Alteration | 2022-08-17 | $12,000 |
| Not open Approved · 2022-05-26 | B00494042-P2 DOB NOW | Alteration | 2022-05-25 | $12,000 |
| Not open Approved · 2021-08-26 | B00494042-P1 DOB NOW | Alteration | 2021-08-25 | $12,000 |
| Not open LOC Issued · 2022-09-15 | B00494042-S1 DOB NOW | Alteration | 2021-04-26 | $12,000 |
| Not open LOC Issued · 2022-04-12 | B00494042-S2 DOB NOW | Alteration | 2021-04-26 | $15,000 |
| Not open LOC Issued · 2022-04-27 | B00494042-I1 DOB NOW | Alteration | 2021-04-20 | $80,000 |
| Not open LOC Issued · 2021-09-30 | B00500322-I1 DOB NOW | Alteration | 2021-04-08 | — |
| Not open PLAN EXAM - APPROVED · 2014-12-09 | 320963640 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 2014-05-09 | $20,000 |
| Not open APPLICATION PROCESSED - ENTIRE · 2014-05-01 | 340140760 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 2014-05-01 | $20,000 |
| Not open APPLICATION PROCESSED - ENTIRE · 2014-05-01 | 340140779 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 2014-05-01 | $20,000 |
Source: DOB NOW: Build – Job Application Filings — city dataset updated 2026-11-05; data as of 2026-11-06; DOB Job Application Filings (BIS) — city dataset updated 2026-11-05; data as of 2026-11-06
Work permits 6
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 |
|---|---|---|---|---|
| 2021-08-24 | 2022-08-24 | B00494042-S1 DOB NOW | Plumbing PLUMBING WORK IN CONJUNCTION WITH APT RENOVATION | Signed-off |
| 2021-07-27 | 2021-12-31 | B00500322-I1 DOB NOW | General Construction PROPOSED LEGALIZATION AND MINOR MODIFICATION OF STEEL DECK OF AT REAR OF PROPERTY. THERE IS NO CHANGE IN USE, EGRESS OR OCCUPANCY. | Signed-off |
| 2021-06-24 | 2021-08-20 | B00494042-S1 DOB NOW | Plumbing PLUMBING WORK IN CONJUNCTION WITH APT RENOVATION | Signed-off |
| 2021-05-12 | 2022-03-27 | B00494042-S2 DOB NOW | Mechanical Systems MECHANICAL WORK IN CONJUNCTION WITH APT RENOVATION | Signed-off |
| 2021-05-10 | 2022-03-27 | B00494042-I1 DOB NOW | General Construction PROPOSED RENOVATION OF APT 1 INCLUDING GENERAL CONSTRUCTION AND PARTITION WORK. NO CHANGE TO USE, EGRESS OR OCCUPANCY. | Signed-off |
| 2021-05-10 | 2022-03-27 | B00494042-I1 DOB NOW | Structural PROPOSED RENOVATION OF APT 1 INCLUDING GENERAL CONSTRUCTION AND PARTITION WORK. NO CHANGE TO USE, EGRESS OR OCCUPANCY. | Signed-off |
Source: DOB NOW: Build – Approved Permits — city dataset updated 2026-11-05; data as of 2026-11-06; DOB Permit Issuance (BIS) — city dataset updated 2026-10-31; data as of 2026-10-31
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 2026-11-05; data as of 2026-11-06
ECB violations (DOB) 0 active of 0
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.
No records found in this dataset for this lot.
Source: DOB ECB Violations — city dataset updated 2026-11-05; data as of 2026-11-06
OATH tickets (all agencies) 0 unpaid of 9
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 | 2022-02-16 | Pcs - Dohmh | FAIL TO ELIMINATE RODENT INFESTATION SHOWN BY ACTIVE RODENT SIGNS 1ST | VONDRISKA MICHAEL | $300 / $300 / $0 | 0802182572 |
| No balance due PAID IN FULL · IN VIOLATION | 2019-10-04 | Dos - Enforcement Agents | FAILURE TO PROPERLY PUT RECYCS OUT FOR COLLECTION 1TO8DWELLING UNITS | VADNAI | $25 / $25 / $0 | 044734366L |
| No balance due PAID IN FULL · IN VIOLATION | 2019-08-10 | Sanitation Others | FAILURE TO CLEAN 18 INCHES INTO STREET | VADNAI | $100 / $100 / $0 | 0207132485 |
| No balance due PAID IN FULL · IN VIOLATION | 2019-03-29 | Dos - Enforcement Agents | IMPROPER MISUSED CURBSIDE RECYCLING CONTAINER 1 TO 8 DWELLING UNITS | VADNAI | $25 / $25 / $0 | 041949243K |
| No balance due PAID IN FULL | 2017-03-16 | Sanitation Others | SNOW,ICE DIRT ON SIDEWALKS | VADNAI | $100 / $100 / $0 | 0194694051 |
| No balance due PAID IN FULL | 2015-09-21 | FAILURE TO CLEAN 18 INCHES INTO STREET | VADNAI | $100 / $100 / — | 0186248545 | |
| No balance due Default PAID IN FULL · DEFAULTED | 2009-07-24 | Sanitation Others | FAILURE TO PROPERLY PUT RECYCLABLES OUT FOR COLLECTION | WARREN | $25 / $25 / — | 0171449145 |
| No balance due HEARING COMPLETED · DISMISSED | 2009-03-31 | Sanitation Police | DIRTY SIDEWALK DIRTY AREA | WARNER | — / — / — | 040532030R |
| No balance due PAID IN FULL | 2008-05-30 | Sanitation Police | LOOSE RUBBISH | MCKENZIE | $100 / $100 / — | 040570805K |
Source: OATH Hearings Division Case Status — city dataset updated 2026-11-06; data as of 2026-11-06
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; data as of 2026-11-06; HPD Registration Contacts — city dataset updated 2026-11-04; data as of 2026-11-06
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 2026-11-05; data as of 2026-11-06
HPD complaints 0
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.
No records found in this dataset for this lot.
Source: HPD Housing Maintenance Code Complaints and Problems — city dataset updated 2026-11-06; data as of 2026-11-06
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 2026-11-06; data as of 2026-11-06
Nearby properties
More in Prospect Heights: Open HPD violations · Active DOB violations · Active ECB violations · Open DOB jobs · Unpaid OATH tickets
On Classon Ave
- 446 Classon Avenue (one open item)
- 447 Classon Avenue
- 445 Classon Avenue (three open items)
- 444 Classon Avenue
- 448 Classon Avenue (29 open items)
- 449 Classon Avenue (56 open items)
- 443 Classon Avenue (11 open items)
- 442 Classon Avenue
- 450 Classon Avenue (two open items)
- 451 Classon Avenue (43 open items)
Same tax block (1984)
- 71 Irving Place (11 open items)
- 63 Irving Place (one open item)
- 61 Irving Place
- 59 Irving Place (three open items)
- 57 Irving Place (14 open items)
- 55 Irving Place (16 open items)
- 53 Irving Place (20 open items)
- 51 Irving Place (31 open items)
- 49 Irving Place
- 47 Irving Place
All properties on Classon Ave, Brooklyn · All of Brooklyn 11238
Open-item counts as of November 6, 2026; each section lists its own dataset date. Machine-readable: JSON API · Markdown · Plain text · API & MCP docs