Knapp Street, Brooklyn, NY 11235
BBL 3085901000 (Borough 3, Block 8590, Lot 1000) · Last updated:
Summary · as of October 31, 2026
Knapp Street (Brooklyn, NY 11235; tax lot BBL 3085901000) is an utility property (building class U9: utility property (subtype U9)), on a 45,868 sq ft lot zoned M1-1. City tax records list the owner as NYC DEPARTMENT PUBLIC WORKS. As of October 31, 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
- NYC DEPARTMENT PUBLIC WORKS
- Building class
- U9 · Utility property
- Year built · units
- — · 0 res.
- Lot area · zoning
- 45,868 sq ft · M1-1
- Market value (DOF)
- $0 FY2027
- Last priced deed
- —
- BBL
- 3085901000
- BIN
- —
- 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, “Knapp Street, Brooklyn, NY 11235 (BBL 3085901000)”, data as of 2026-10-31, https://nycpropertyfacts.com/ny/brooklyn/knapp-street-3085901000. 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)
- NYC DEPARTMENT PUBLIC WORKSThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
- Building class
- U9 – Utility property (subtype U9)The Department of Finance’s category for what kind of building this is.
- Land use
- Transportation & utilityCity Planning’s broad category of how the lot is used.
- Year built
- —Often an estimate for older buildings.
- Floors
- —
- Units
- 0 residential / 0 totalResidential units are apartments; total includes stores and offices.
- Buildings on lot
- 0
- Lot size
- 45,868 sq ft
- Building floor area
- 0 sq ft
- Zoning
- M1-1The zoning district sets what can be built and used here. Manufacturing district.
- Built vs. allowed density (FAR)
- 0.00 built / 0.00 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 3085901000 (Borough 3, Block 8590, Lot 1000)BBL 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 2026-11-02; 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)
- $0The 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
- $0The portion of market value that taxes are calculated on (capped by law for small homes).
- Tax class
- Tax class 3 – utility property
| Tax year | Roll | Market value | Assessed value | Tax class |
|---|---|---|---|---|
| 2027 | Final | $0 | $0 | 3 |
| 2026 | Final | $0 | $0 | 3 |
| 2025 | Final | $0 | $0 | 3 |
Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; data as of 2026-11-02
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; data as of 2026-11-02; ACRIS Real Property Legals — city dataset updated 2026-10-08; data as of 2026-11-02; ACRIS Real Property Parties — city dataset updated 2026-10-08; data as of 2026-11-02
DOB job filings 0 open of 0
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.
No records found in this dataset for this lot.
Source: DOB NOW: Build – Job Application Filings — city dataset updated 2026-11-01; data as of 2026-11-02; DOB Job Application Filings (BIS) — city dataset updated 2026-10-30; data as of 2026-10-31
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 2026-11-02; data as of 2026-11-02; 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 2026-11-02; data as of 2026-11-02
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 2026-10-31; data as of 2026-11-02
OATH tickets (all agencies) 0 unpaid of 0
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.
No records found in this dataset for this lot.
Source: OATH Hearings Division Case Status — city dataset updated 2026-11-02; data as of 2026-11-02
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 2026-10-28; data as of 2026-11-02; HPD Registration Contacts — city dataset updated 2026-10-28; data as of 2026-11-02
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 2026-11-02; data as of 2026-11-02
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 2026-11-02; data as of 2026-11-02
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 2026-11-02; data as of 2026-11-02
Nearby properties
On Knapp St
- Knapp Street
- Knapp Street
- 2126 Knapp Street (four open items)
- 2129 Knapp Street (seven open items)
- 2209 Knapp Street (45 open items)
- 2251 Knapp Street (85 open items)
- 2291 Knapp Street
- 2293 Knapp Street
- 2295 Knapp Street
- 2299 Knapp Street (11 open items)
Same tax block (8590)
- 2570 Flatbush Avenue (seven open items)
- 2594 Flatbush Avenue (four open items)
- 2590 Flatbush Avenue
- 3000 Flatbush Avenue (85 open items)
- 2529 Gerritsen Avenue (14 open items)
- Flatbush Avenue (five open items)
- Flatbush Avenue
- Flatbush Avenue
All properties on Knapp St, Brooklyn · All of Brooklyn 11235 (Sheepshead Bay-Manhattan Beach-Gerritsen Beach)
Open-item counts as of October 31, 2026; each section lists its own dataset date. Machine-readable: JSON API · Markdown · Plain text · API & MCP docs