3 Knickerbocker Avenue, Brooklyn, NY 11237
BBL 3029920008 (Borough 3, Block 2992, Lot 8) · BIN 3070608 · Last updated:
Summary · as of October 31, 2026
3 Knickerbocker Avenue (Brooklyn, NY 11237; tax lot BBL 3029920008) is a 1-unit garage or parking property (building class G9: garage, gas station or parking (subtype G9)), built around 1931, on a 1,575 sq ft lot zoned M1-2. City tax records list the owner as 3 KNICKERBOCKER, LLC; per ACRIS, a deed to this owner dated November 26, 2019 lists a price of $1,500,000. The Department of Finance's final market value for tax year 2027 is $550,000. As of October 31, 2026, NYC Open Data shows one DOB job with a permit issued but no sign-off and four active DOB violations. There were nine 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
- 3 KNICKERBOCKER, LLC
- Building class
- G9 · Garage, gas station or parking
- Year built · units
- 1931 · 1 res.
- Lot area · zoning
- 1,575 sq ft · M1-2
- Market value (DOF)
- $550,000 FY2027
- Last priced deed
- $1,500,000 · 2019-11-26
- BBL
- 3029920008
- BIN
- 3070608
- 1Open DOB jobs (permit issued, no sign-off)
- 4Active DOB violations
- 0Active ECB violations
- 0Open HPD violations
- 0OATH tickets with unpaid balance
How to cite: NYC Property Facts, “3 Knickerbocker Avenue, Brooklyn, NY 11237 (BBL 3029920008)”, data as of 2026-10-31, https://nycpropertyfacts.com/ny/brooklyn/3-knickerbocker-avenue-3029920008. 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)
- 3 KNICKERBOCKER, LLCThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
- Building class
- G9 – Garage, gas station or parking (subtype G9)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
- 1931Often an estimate for older buildings.
- Floors
- 2
- Units
- 1 residential / 2 totalResidential units are apartments; total includes stores and offices.
- Buildings on lot
- 1
- Lot size
- 1,575 sq ft (39 ft × 62 ft)
- Building floor area
- 2,650 sq ft (incl. 1,575 sq ft commercial)
- Zoning
- M1-2The zoning district sets what can be built and used here. Manufacturing district.
- Built vs. allowed density (FAR)
- 1.68 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 3029920008 (Borough 3, Block 2992, Lot 8) · BIN 3070608BBL 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)
- $550,000The 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
- $247,500The portion of market value that taxes are calculated on (capped by law for small homes).
- Taxable value (final)
- $203,850Assessed value minus any exemptions.
- Tax class
- Tax class 4 – commercial / industrial
| Tax year | Roll | Market value | Assessed value | Tax class |
|---|---|---|---|---|
| 2027 | Final | $550,000 | $247,500 | 4 |
| 2026 | Final | $508,000 | $228,600 | 4 |
| 2025 | Final | $467,000 | $210,150 | 4 |
Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; data as of 2026-11-02
Sales & deed history 5
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 |
|---|---|---|---|---|---|
| 2019-11-26 | DEED | $1,500,000 | Mercado, Luis | 3 Knickerbocker, Llc | 2019122700005001 |
| 1983-09-28 | DEED | $0 / not stated one deed covering 7 lots; price is for all of them | S & S Associates | Turetsky, Mark; Turetsky, Matthew | FT_3650000980865 |
| 1982-12-15 | DEED | $0 / not stated | Arethas, John; Kallenekos, Stellianos; Kallenekos, Loula | Mercado, Luis | FT_3740000939774 |
| 1967-01-04 | DEED | $0 / not stated | Gruber Theodore R | Kallenekos Stelianos; Arethas John | BK_6730033000049 |
| 1966-01-06 | DEED | $0 / not stated one deed covering 2 lots; price is for all of them | Kolonics Corp | Gruber Theodore R | BK_6630000300417 |
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 1 open of 13
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 |
|---|---|---|---|---|
| Permitted, not signed off PERMIT ISSUED - PARTIAL JOB · 2005-09-14 | 301996151 BIS | A1 – Major alteration (changes use, egress or occupancy) | 2005-08-16 | $25,000 |
| Not open Approved · 2022-03-11 | B00340190-P6 DOB NOW | Alteration | 2022-03-10 | $53,600 |
| Not open SIGNED OFF · 2022-08-16 | 340835074 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 2022-02-03 | $47,268 |
| Not open Approved · 2021-09-17 | B00536434-P1 DOB NOW | Alteration | 2021-09-17 | $7,000 |
| Not open LOC Issued · 2021-12-10 | B00536434-I1 DOB NOW | Alteration | 2021-06-14 | $7,000 |
| Not open Approved · 2021-06-02 | B00340190-P3 DOB NOW | Alteration | 2021-06-02 | $53,600 |
| Not open Approved · 2021-04-05 | B00340190-P2 DOB NOW | Alteration | 2021-04-02 | $53,600 |
| Not open Approved · 2021-01-26 | B00340190-P1 DOB NOW | Alteration | 2021-01-26 | $51,600 |
| Not open LOC Issued · 2022-02-22 | B00340197-I1 DOB NOW | Alteration | 2020-10-19 | $40,500 |
| Not open SIGNED OFF · 2022-07-01 | 340770892 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 2020-09-29 | $18,600 |
| Not open LOC Issued · 2022-03-18 | B00340190-I1 DOB NOW | Alteration | 2020-09-03 | $53,600 |
| Not open SIGNED OFF · 2022-09-06 | 322034222 BIS | A1 – Major alteration (changes use, egress or occupancy) | 2020-04-09 | $290,000 |
| Not open SIGNED OFF · 2019-10-21 | 321965771 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 2019-06-11 | $20,000 |
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 11
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 |
|---|---|---|---|---|
| 2022-03-10 | 2022-08-12 | B00340190-I1 DOB NOW | Plumbing Amend Plumbing per Inspector comments: Add Cooking-Residential to Gas Usage; Change Type of Meter to Individual; Delete Gas Boiler from Appliances/Equipment; Ad | Signed-off |
| 2022-02-10 | 2022-06-12 | 340835074 BIS | Equipment work / Other / general construction | ISSUED (initial) |
| 2021-08-06 | 2022-05-16 | 322034222 BIS | Alteration | ISSUED (renewal) |
| 2021-06-17 | 2022-06-17 | B00536434-I1 DOB NOW | Boiler Equipment Replace existing Weil McLain conventional cast iron boiler with wall hung Rheem Direct Vent Combination Boiler. | Signed-off |
| 2021-02-25 | 2022-02-25 | B00340190-I1 DOB NOW | Plumbing Amend Plumbing per Inspector comments: Add Cooking-Residential to Gas Usage; Change Type of Meter to Individual; Delete Gas Boiler from Appliances/Equipment; Ad | Signed-off |
| 2020-12-15 | 2021-08-10 | 340770892 BIS | Equipment work / Other / general construction | ISSUED (initial) |
| 2020-12-03 | 2021-05-16 | B00340197-I1 DOB NOW | Mechanical Systems Mechanical work associated with Alteration Level 1 project #322034222. | Signed-off |
| 2020-08-03 | 2021-06-09 | 322034222 BIS | Alteration | ISSUED (initial) |
| 2019-08-05 | 2021-01-31 | 321965771 BIS | Equipment work / Other / general construction | ISSUED (initial) |
| 2019-08-05 | 2021-01-31 | 321965771 BIS | Plumbing / Plumbing | ISSUED (initial) |
| 2005-09-14 | 2006-03-11 | 301996151 BIS | Alteration | ISSUED (initial) |
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 4 active of 6
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).
| Status | Issued | Type | Description | Number |
|---|---|---|---|---|
| Active V-DOB VIOLATION - ACTIVE | 2025-11-14 | LBLVIO-LOW PRESSURE BOILER BOILER REQUIRED | VIOLATION ISSUED-FAILURE TO FILE 2024 EXTERNAL LOW PRESSURE INSPECTION | V111425LBLVIO11094 |
| Active V-DOB VIOLATION - ACTIVE | 2024-09-23 | LBLVIO-LOW PRESSURE BOILER BOILER REQUIRED | VIOLATION ISSUED-FAILURE TO FILE 2023 EXTERNAL LOW PRESSURE INSPECTION | V092324LBLVIO10021 |
| Active V-DOB VIOLATION - ACTIVE | 2023-06-30 | LBLVIO-LOW PRESSURE BOILER BOILER REQUIRED | VIOLATION ISSUED-FAILURE TO FILE 2020 EXTERNAL LOW PRESSURE INSPECTION | V063023LBLVIO04991 |
| Active V-DOB VIOLATION - ACTIVE | 2023-04-25 | LBLVIO-LOW PRESSURE BOILER BOILER REQUIRED | VIOLATION ISSUED-FAILURE TO FILE 2022 EXTERNAL LOW PRESSURE INSPECTION | V042523LBLVIO10273 |
| Resolved/dismissed V*-DOB VIOLATION - DISMISSED | 1997-02-10 | LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIRED | V*021097LL629124105 | |
| Resolved/dismissed V*-DOB VIOLATION - DISMISSED | 1994-07-25 | LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIRED | V*072594LL629102665 |
Source: DOB Violations — city dataset updated 2026-11-02; data as of 2026-11-02
ECB violations (DOB) 0 active of 3
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: CURED/IN-VIO · Certification: CURE ACCEPTED | 2018-08-19 | CLASS - 3 | OCCUPANCY CONTRARY TO DEPARTMENT RECORDS. EXISTING RADIATOR REPAIR SHOP-USE GROUP 16 BEING USED ON SUNDAYS AS HOUSE OF WORSHIP-USE GROUP 4. 50 CHAIRS AND 15 PATRONS IN ATTENDANCE. REM: DISCONTINUE USE AND OBTAI | $0 / $0 / $0 | 35245393N |
| Resolved Hearing: IN VIOLATION · Certification: CERTIFICATE ACCEPTED | 2005-07-13 | Non-Hazardous | WORK WITHOUT A PERMIT HAZARDOUS NOTE FULL PARTITION WALLS ILEGALLY ERECTED IN CELLAR AT VARIOUS LOCATIONS CREATING A TWO PIECE BATHROOM AND FULL ROOMS WITH TV BEDS CLOTHES DRESSERS CHAIRS DISHES SEWING MACHINE | $800 / $800 / $0 | 34486219Z |
| Resolved Hearing: IN VIOLATION · Certification: CERTIFICATE ACCEPTED | 2005-07-13 | Non-Hazardous | RESIDENCE ALTERED FOR OCCUPANCY AS A DWELLING FOR THAN THE LEGALLY APPROVED NUMBER OF FAMILIES. NOTE: DEPT COMPUTER PROPERTY PROFILE OVERVIEW RECORDS INDICATE "G-9 GARAGE/GAS STATION". NOW IN CELLAR FULL PARTIT | $7,550 / $7,550 / $0 | 34486220X |
Source: DOB ECB Violations — city dataset updated 2026-10-31; data as of 2026-11-02
OATH tickets (all agencies) 0 unpaid of 12
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 HEARING COMPLETED · DISMISSED | 2019-08-12 | Dos - Enforcement Agents | ILLEGAL PLACEMENT OF STICKERS OR DECALS ON PUBLIC OR PRIVATE PROPERTY | BROOKLYN EXPO CENTER | $0 / $0 / $0 | 042400683M |
| No balance due HEARING COMPLETED · DISMISSED | 2019-08-12 | Dos - Enforcement Agents | ILLEGAL PLACEMENT OF STICKERS OR DECALS ON PUBLIC OR PRIVATE PROPERTY | BROOKLYN EXPO CENTER | $0 / $0 / $0 | 042400682K |
| No balance due HEARING COMPLETED · DISMISSED | 2019-08-12 | Dos - Enforcement Agents | ILLEGAL PLACEMENT OF STICKERS OR DECALS ON PUBLIC OR PRIVATE PROPERTY | BROOKLYN EXPO CENTER | $0 / $0 / $0 | 042400684Y |
| No balance due HEARING COMPLETED · IN VIOLATION | 2018-08-19 | Dept. Of Buildings | OCCUPANCY CONTRARY TO THAT ALLOWED BY CERT OF OCCUP AND BUILDING DEPT | TURETSKY | $0 / $0 / $0 | 035245393N |
| No balance due Default PAID IN FULL · DEFAULT | 2014-07-05 | Dept Of Tran | WEARING COURSE NOT FLUSH WITH SURROUNDING AREA | CONSOLIDATED EDISON | $780 / $750 / — | 0187104684 |
| No balance due PAID IN FULL | 2013-05-29 | Dep - Right To Know | FAILED TO FILE A COMPLETED FACILITY INVENTORY FORM | BIG MAN AUTO RADIATOR | $500 / $500 / — | 0181722714 |
| No balance due Default PAID IN FULL · DEFAULTED | 2009-02-06 | Sanitation Recycling | SPILLAGE FROM TRUCK OR RECEPTACLE | QUAGLIARIELLO | $130 / $130 / — | 040493942K |
| No balance due PAID IN FULL · IN VIOLATION | 2005-07-13 | Dept. Of Buildings | WORK WITHOUT A PERMIT: HAZARDOUS. | MERCADO LUIS | $800 / $800 / $0 | 034486219Z |
| No balance due PAID IN FULL · IN VIOLATION | 2005-07-13 | Dept. Of Buildings | ADDITIONAL DAILY PENALTY FOR CONTINUED VIOLATION OF 27-118.1 A -1 2 | MERCADO | $7,550 / $7,550 / $0 | 034486220X |
| No balance due WRITTEN OFF | 2005-05-24 | SPILLAGE FROM TRUCK OR RECEPTACLE | CARTER | $450 / — / — | 0147406986 | |
| No balance due Default PAID IN FULL · DEFAULT | 2005-05-24 | $130 / $100 / — | 0147405098 | |||
| No balance due HEARING COMPLETED · IN VIOLATION | 2000-02-07 | — / — / — | 010668470P |
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) 9
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 |
|---|---|---|---|---|
| 2026-06-19 | NYPD | Noise - Commercial – Loud Music/Party | Closed | 2026-06-19 |
| 2026-05-31 | NYPD | Noise - Commercial – Loud Music/Party | Closed | 2026-05-31 |
| 2026-05-31 | NYPD | Noise - Residential – Loud Music/Party | Closed | 2026-05-31 |
| 2026-05-31 | NYPD | Noise - Residential – Loud Music/Party | Closed | 2026-05-31 |
| 2026-05-31 | NYPD | Noise - Residential – Loud Music/Party | Closed | 2026-05-31 |
| 2026-05-05 | NYPD | Noise - Commercial – Loud Music/Party | Closed | 2026-05-05 |
| 2026-05-01 | NYPD | Noise - Residential – Loud Talking | Closed | 2026-05-01 |
| 2026-04-19 | NYPD | Noise - Residential – Loud Music/Party | Closed | 2026-04-19 |
| 2026-03-29 | DEP | Water System – Hydrant Leaking (WC1) | Closed | 2026-04-03 |
Source: 311 Service Requests from 2020 to Present — city dataset updated 2026-11-02; data as of 2026-11-02
Nearby properties
On Knickerbocker Ave
- 2 Knickerbocker Avenue (10 open items)
- 1 Knickerbocker Avenue (seven open items)
- Knickerbocker Avenue (one open item)
- Knickerbocker Avenue (three open items)
- Knickerbocker Avenue (44 open items)
- Knickerbocker Avenue
- 7 Knickerbocker Avenue
- 18 Knickerbocker Avenue (one open item)
- 20 Knickerbocker Avenue
- 25 Knickerbocker Avenue
Same tax block (2992)
- 25 Knickerbocker Avenue
- 7 Knickerbocker Avenue
- 1 Knickerbocker Avenue (seven open items)
- 428 Johnson Avenue (three open items)
- 430 Johnson Avenue
- 432 Johnson Avenue
- 431 Johnson Avenue (two open items)
- 450 Johnson Avenue (four open items)
- 474 Johnson Avenue (one open item)
- 119 Ingraham Street (21 open items)
All properties on Knickerbocker Ave, Brooklyn · All of Brooklyn 11237 (Bushwick (West))
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