400 Classon Avenue, Brooklyn, NY 11238
BBL 3019690048 (Borough 3, Block 1969, Lot 48) · BIN 3056383 · Last updated:
Summary · as of November 6, 2026
400 Classon Avenue (Brooklyn, NY 11238; tax lot BBL 3019690048) is a 3-unit walk-up apartment building (building class C0: three-family walk-up), built around 1899, on a 2,000 sq ft lot zoned R6B. City tax records list the owner as 400 CLASSON AVE. BROOKLYN, NY LLC; the most recent deed with a stated price is dated November 21, 2003 at $530,450 (per ACRIS). The Department of Finance's final market value for tax year 2027 is $2,052,000. As of November 6, 2026, NYC Open Data shows one open HPD violation. There were seven 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.)
- Owner of record
- 400 CLASSON AVE. BROOKLYN, NY LLC
- Building class
- C0 · Three-family walk-up
- Year built · units
- 1899 · 3 res.
- Lot area · zoning
- 2,000 sq ft · R6B
- Market value (DOF)
- $2,052,000 FY2027
- Last priced deed
- $530,450 · 2003-11-21
- BBL
- 3019690048
- BIN
- 3056383
- 0Open DOB jobs (permit issued, no sign-off)
- 0Active DOB violations
- 0Active ECB violations
- 1Open HPD violations
- 0OATH tickets with unpaid balance
How to cite: NYC Property Facts, “400 Classon Avenue, Brooklyn, NY 11238 (BBL 3019690048)”, data as of 2026-11-06, https://nycpropertyfacts.com/ny/brooklyn/400-classon-avenue-3019690048. 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)
- 400 CLASSON AVE. BROOKLYN, NY LLCThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
- Building class
- C0 – Three-family walk-upThe Department of Finance’s category for what kind of building this is.
- Land use
- Multi-family walk-up buildingsCity Planning’s broad category of how the lot is used.
- Year built
- 1899Often an estimate for older buildings. Major alteration recorded: 2000.
- Floors
- 2.5
- Units
- 3 residential / 3 totalResidential units are apartments; total includes stores and offices.
- Buildings on lot
- 1
- Lot size
- 2,000 sq ft (20 ft × 100 ft)
- Building floor area
- 2,160 sq ft
- Zoning
- R6BThe zoning district sets what can be built and used here. Residential district.
- Built vs. allowed density (FAR)
- 1.08 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 3019690048 (Borough 3, Block 1969, Lot 48) · BIN 3056383BBL 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 2026-11-07; 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)
- $2,052,000The 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
- $123,120The portion of market value that taxes are calculated on (capped by law for small homes).
- Taxable value (final)
- $32,657Assessed 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 | $2,052,000 | $123,120 | 1 |
| 2026 | Final | $1,787,000 | $107,220 | 1 |
| 2025 | Final | $2,102,000 | $126,120 | 1 |
Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; data as of 2026-11-07
Sales & deed history 12
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 |
|---|---|---|---|---|---|
| 2025-10-10 | DEED | $0 / not stated | Ottman, John I | 400 Classon Ave. Brooklyn, Ny Llc | 2025120200172001 |
| 2003-11-21 | DEED | $530,450 | Jones, Jeremy | Small, Lauryn M; Small, Lauryn; Ottmann, John I | 2003120301873001 |
| 2000-12-07 | DEED | $0 / not stated | Interoffice Inc | Jones, Jeremy | FT_3440007493944 |
| 1999-12-03 | DEED | $0 / not stated | Hud | Jordan, Jessica C | FT_3780007167678 |
| 1999-12-03 | DEED | $0 / not stated | Jordan, Jessica C | Interoffice Inc | FT_3440007167744 |
| 1998-07-15 | DEED | $0 / not stated | Countrywide Fundingcorporation; Countrywide Home Loans Inc | Hud | FT_3650006159065 |
| 1998-06-04 | DEED | $0 / not stated | Levine, Irving/Referee; Wells, Henry/Def | Countrywide Home Loans; Countrywide Fundingcorporation | FT_3490006159049 |
| 1995-09-15 | DEED | $0 / not stated | Br Estate Inc | Simmons, Reginald | FT_3770005005877 |
| 1995-09-15 | DEED | $0 / not stated | Simmonds, Reginald | Wells, Henry | FT_3720005005872 |
| 1993-12-30 | DEED | $0 / not stated | Dime Savings Bank Ofnew York | B R Estate Inc | FT_3170004165217 |
| 1993-02-25 | DEED | $0 / not stated | Tillman, Redis L/Defs; Breslin, John G/Referee | Dime Savs Bank/Ny Fsb | FT_3390001781739 |
| 1989-11-18 | DEED | $0 / not stated | Tillman, Redis L; Collins, Gertrude | Tillman, Redis L | FT_3040001505804 |
Source: ACRIS Real Property Master — city dataset updated 2026-10-08; data as of 2026-11-07; ACRIS Real Property Legals — city dataset updated 2026-10-08; data as of 2026-11-07; ACRIS Real Property Parties — city dataset updated 2026-10-08; data as of 2026-11-07
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 Approved · 2020-12-28 | B00144611-I1 DOB NOW | Alteration | 2019-03-27 | $45,000 |
Source: DOB NOW: Build – Job Application Filings — city dataset updated 2026-11-06; data as of 2026-11-07; DOB Job Application Filings (BIS) — city dataset updated 2026-11-05; data as of 2026-11-06
Work permits 0
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.
No records found in this dataset for this lot.
Source: DOB NOW: Build – Approved Permits — city dataset updated 2026-11-06; data as of 2026-11-07; DOB Permit Issuance (BIS) — city dataset updated 2026-11-07; data as of 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 2026-11-06; data as of 2026-11-07
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 2026-11-06; data as of 2026-11-07
OATH tickets (all agencies) 0 unpaid of 27
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 Default PAID IN FULL · DEFAULTED | 2026-03-13 | Dos - Enforcement Agents | FAILURE TO CLEAN 18 INCHES INTO STREET | 400 CLASSON AVE BROOKLYN NY L | $80 / $50 / $0 | 049620868H |
| No balance due PAID IN FULL · IN VIOLATION | 2024-07-11 | Fire Department Of Nyc | INSPECTION AND TESTING | JOHN OTTMAN | $300 / $300 / $0 | 014133701H |
| No balance due HEARING COMPLETED · IN VIOLATION | 2020-04-24 | Fire Department Of Nyc | CERTIFICATES OF FITNESS AND CERTIFICATES OF QUALIFICATION | JOHN OHMAN | $0 / $0 / $0 | 011729454H |
| No balance due HEARING COMPLETED · DISMISSED | 2020-01-09 | Fire Department Of Nyc | INSPECTION AND TESTING | LAUREN M. SMALL | $0 / $0 / $0 | 011721248K |
| No balance due Default PAID IN FULL · DEFAULTED | 2019-01-24 | Fire Department Of Nyc | INSPECTION AND TESTING | LAURYN M SMALL | $1,000 / $1,327 / $0 | 011676081H |
| No balance due HEARING COMPLETED · DISMISSED | 2018-10-29 | Fire Department Of Nyc | INSPECTION AND TESTING | SMALL | $0 / $0 / $0 | 011656046Y |
| No balance due HEARING COMPLETED · DISMISSED | 2018-02-09 | Fire Department Of Nyc | INSPECTION AND TESTING | LAURYN M SMALL | $0 / $0 / $0 | 011635892K |
| No balance due HEARING COMPLETED · DISMISSED | 2017-09-01 | Fire Department Of Nyc | INSPECTION AND TESTING | LAURYN M. SMALL | $0 / $0 / $0 | 011628927X |
| No balance due HEARING COMPLETED · DISMISSED | 2017-03-22 | Fire Department Of Nyc | INSPECTION AND TESTING | LAURYN SMALL | $0 / $0 / $0 | 011588876L |
| No balance due HEARING COMPLETED · DISMISSED | 2016-10-18 | Fire Department Of Nyc | INSPECTION AND TESTING | LAURYN M SMALL | — / — / — | 011497126Z |
| No balance due PAID IN FULL | 2016-02-05 | Sanitation Dept | FAILURE TO BUNDLE NEWSPAPES MAGAZINES CARDBOARD 1 TO 8 DWELLING UNITS | LAURYN M SMALL | $25 / $25 / — | 044790008H |
| No balance due PAID IN FULL | 2015-10-23 | FAILURE TO BUNDLE NEWSPAPES MAGAZINES CARDBOARD 1 TO 8 DWELLING UNITS | SMALL | $25 / $25 / — | 0186741877 |
Showing 12 of 27 records. The API and the source dataset have the full list.
Source: OATH Hearings Division Case Status — city dataset updated 2026-11-07; data as of 2026-11-07
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.
- HPD building ID
- 221596
- Last registered
- 2026-10-03
- Registration valid until
- 2027-09-01 CurrentRegistrations must be renewed every year.
| Role | Name | Company | Business city |
|---|---|---|---|
| Officer | John Ottmann | Brooklyn, Ny | |
| Sitemanager | Iden Ottmann | ||
| Headofficer | John Ottmann | Brooklyn, Ny | |
| Corporateowner | 400 Classon Ave Brooklyn NY LLC | Brooklyn, Ny | |
| Agent | John Ottmann | Brooklyn, Ny |
Source: HPD Multiple Dwelling Registrations — city dataset updated 2026-11-04; data as of 2026-11-07; HPD Registration Contacts — city dataset updated 2026-11-04; data as of 2026-11-07
HPD housing-code violations 1 open of 10
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.
| Status | Class | Issued | Apt | Condition |
|---|---|---|---|---|
| Open Nov Sent Out · 2026-05-04 | A | 2026-05-04 | (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 HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS. | |
| Closed Violation Dismissed · 2024-12-27 | I | 2024-11-29 | §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 SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISE | |
| Closed Violation Dismissed · 2023-03-02 | I | 2022-11-14 | §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 SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISE | |
| Closed Violation Dismissed · 2023-03-06 | A | 2022-02-23 | (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 HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS. | |
| Closed Violation Dismissed · 2021-04-30 | A | 2021-04-07 | (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 HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS. | |
| Closed Violation Dismissed · 2019-11-27 | I | 2019-10-29 | §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 SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISE | |
| Closed Violation Dismissed · 2018-10-30 | I | 2018-10-16 | §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 SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISE | |
| Closed Violation Dismissed · 2017-12-08 | I | 2017-11-20 | §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 SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISE | |
| Closed Violation Dismissed · 2016-12-15 | I | 2016-11-04 | §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 SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISE | |
| Closed Violation Dismissed · 2016-12-15 | I | 2015-10-08 | §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 SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISE |
Source: HPD Housing Maintenance Code Violations — city dataset updated 2026-11-06; data as of 2026-11-07
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 2026-11-07; data as of 2026-11-07
311 requests (last 12 months) 7
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.
| Opened | Agency | Complaint | Status | Closed |
|---|---|---|---|---|
| 2026-09-14 | DPR | Overgrown Tree/Branches – Hitting Building | In Progress | — |
| 2026-09-07 | DPR | Overgrown Tree/Branches – Hitting Building | In Progress | — |
| 2026-09-02 | DPR | Overgrown Tree/Branches – Hitting Building | In Progress | — |
| 2026-08-26 | DPR | Overgrown Tree/Branches – Blocking Street | In Progress | — |
| 2026-08-26 | DPR | Damaged Tree – Branch Cracked and Will Fall | Closed | 2026-09-17 |
| 2026-08-08 | DPR | Overgrown Tree/Branches – Blocking Street | In Progress | — |
| 2026-02-11 | DEP | Lead – Lead Kit Request (Residential) (L10) | Closed | 2026-02-12 |
Source: 311 Service Requests from 2020 to Present — city dataset updated 2026-11-07; data as of 2026-11-07
Nearby properties
More in Prospect Heights: Open HPD violations · Active DOB violations · Active ECB violations · Open DOB jobs · Unpaid OATH tickets
On Classon Ave
- 401 Classon Avenue (28 open items)
- 399 Classon Avenue (three open items)
- 398 Classon Avenue (two open items)
- 402 Classon Avenue (one open item)
- 403 Classon Avenue (three open items)
- 397 Classon Avenue (22 open items)
- 396 Classon Avenue
- 404 Classon Avenue (one open item)
- 395 Classon Avenue (12 open items)
- 406 Classon Avenue (35 open items)
Same tax block (1969)
- 10 Lexington Avenue (18 open items)
- 20 Lexington Avenue (15 open items)
- 26 Lexington Avenue (29 open items)
- 15 Quincy Street (31 open items)
- 46 Lexington Avenue (one open item)
- 50 Lexington Avenue
- 52 Lexington Avenue (two open items)
- 54 Lexington Avenue (21 open items)
- 396 Classon Avenue
- 398 Classon Avenue (two open items)
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