522 Ralph Avenue, Brooklyn, NY 11233
BBL 3013750044 (Borough 3, Block 1375, Lot 44) · BIN 3036640 · Last updated:
Summary · as of November 5, 2026
522 Ralph Avenue (Brooklyn, NY 11233; tax lot BBL 3013750044) is a 3-unit walk-up apartment building (building class C0: three-family walk-up), built around 1899, on a 2,800 sq ft lot zoned R6. City tax records list the owner as GREEN 11 DEVELOPMENT CORP; per ACRIS, a deed to this owner dated December 16, 2019 lists a price of $495,000. The Department of Finance's final market value for tax year 2027 is $1,349,000. As of November 5, 2026, NYC Open Data shows 27 open HPD violations and five OATH tickets with an unpaid balance. There were four 311 requests in the past 12 months and four HPD complaints since 2019. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)
- Owner of record
- GREEN 11 DEVELOPMENT CORP
- Building class
- C0 · Three-family walk-up
- Year built · units
- 1899 · 3 res.
- Lot area · zoning
- 2,800 sq ft · R6
- Market value (DOF)
- $1,349,000 FY2027
- Last priced deed
- $495,000 · 2019-12-16
- BBL
- 3013750044
- BIN
- 3036640
- 0Open DOB jobs (permit issued, no sign-off)
- 0Active DOB violations
- 0Active ECB violations
- 27Open HPD violations
- 5OATH tickets with unpaid balance
How to cite: NYC Property Facts, “522 Ralph Avenue, Brooklyn, NY 11233 (BBL 3013750044)”, data as of 2026-11-05, https://nycpropertyfacts.com/ny/brooklyn/522-ralph-avenue-3013750044. 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)
- GREEN 11 DEVELOPMENT CORPThe 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.
- Floors
- 3
- Units
- 3 residential / 3 totalResidential units are apartments; total includes stores and offices.
- Buildings on lot
- 1
- Lot size
- 2,800 sq ft (20 ft × 95 ft)
- Building floor area
- 2,160 sq ft
- Zoning
- R6, C1-3The zoning district sets what can be built and used here. Residential district; the overlay (C1/C2…) allows local retail on residential blocks.
- Built vs. allowed density (FAR)
- 0.77 built / 2.43 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 3013750044 (Borough 3, Block 1375, Lot 44) · BIN 3036640BBL 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 2026-11-05; 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)
- $1,349,000The 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
- $80,940The portion of market value that taxes are calculated on (capped by law for small homes).
- Taxable value (final)
- $14,530Assessed 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 | $1,349,000 | $80,940 | 1 |
| 2026 | Final | $1,287,000 | $77,220 | 1 |
| 2025 | Final | $1,241,000 | $74,460 | 1 |
Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; data as of 2026-11-05
Sales & deed history 6
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 |
|---|---|---|---|---|---|
| 2019-12-16 | DEED | $495,000 | Kastanos, Nicholas | Green 11 Development Corp | 2019121800669001 |
| 2009-05-01 | DEED | $620,000 | Aw Development Corp | Kastanos, Nicholas | 2009050600938001 |
| 2007-01-12 | DEED | $435,000 | The Orion Development Group, Inc | Aw Development Corp. | 2007011601206002 |
| 2007-01-11 | DEED | $390,000 | Williams, James; Redd, Craig | The Orion Development Group Inc.. | 2007011601206001 |
| 1992-07-10 | DEED | $0 / not stated | Redd, Eugenia; Redd, Cherylye; Redd, Craig | Williams, James; Redd, Craig | FT_3230001706923 |
| 1991-12-12 | DEED | $0 / not stated | Williams, James | Redd, Eugenia; Williams, James/Lifeest; Redd, Cherlye; Redd, Craig | FT_3210001681221 |
Source: ACRIS Real Property Master — city dataset updated 2026-10-08; data as of 2026-11-05; ACRIS Real Property Legals — city dataset updated 2026-10-08; data as of 2026-11-05; ACRIS Real Property Parties — city dataset updated 2026-10-08; data as of 2026-11-05
DOB job filings 0 open of 2
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 · 2009-11-24 | 310240030 BIS | A1 – Major alteration (changes use, egress or occupancy) | 2008-12-11 | $20,000 |
| Not open SIGNED OFF · 2007-07-10 | 302323091 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 2007-04-06 | $45,000 |
Source: DOB NOW: Build – Job Application Filings — city dataset updated 2026-11-01; data as of 2026-11-05; DOB Job Application Filings (BIS) — city dataset updated 2026-11-04; data as of 2026-11-05
Work permits 2
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 |
|---|---|---|---|---|
| 2009-02-26 | 2010-02-26 | 310240030 BIS | Alteration | ISSUED (initial) |
| 2007-05-01 | 2008-03-05 | 302323091 BIS | Equipment work / Other / general construction | ISSUED (initial) |
Source: DOB NOW: Build – Approved Permits — city dataset updated 2026-11-02; data as of 2026-11-05; 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 2026-11-05
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 2026-11-05
OATH tickets (all agencies) 5 unpaid of 24
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 # |
|---|---|---|---|---|---|---|
| Unpaid balance Default DEFAULTED · DEFAULTED | 2026-05-07 | Dos - Enforcement Agents | IMPROPER RECEPTACLE FAILURE TO CONTAINERIZE - RESIDENTIAL 1ST | GREEN 11 DEVELOPMENT CORP | $300 / $0 / $300 | 049809000M |
| Unpaid balance DOCKETED · IN VIOLATION | 2023-05-08 | Dos - Enforcement Agents | DIRTY SIDEWALK | GREEN 11 DEVELOPMENT CORP | $50 / $0 / $50 | 047849580L |
| Unpaid balance Default DEFAULTED · DEFAULTED | 2021-07-09 | Pcs - Dohmh | FAIL TO ELIMINATE RODENT INFESTATION SHOWN BY ACTIVE RODENT SIGNS 1ST | DEVELOPMENT CORP | $600 / $0 / $600 | 0802006911 |
| Unpaid balance DOCKETED · IN VIOLATION | 2021-03-01 | Sanitation Others | DIRTY SIDEWALK DIRTY AREA | GREEN 11 DEVELOPMENT CORP | $100 / $0 / $100 | 047097464P |
| Unpaid balance DOCKETED · IN VIOLATION | 2020-12-10 | Sanitation Others | DIRTY SIDEWALK DIRTY AREA | GREEN 11 DEVELOPMENT CORP | $100 / $0 / $100 | 047043604Y |
| No balance due PAID IN FULL | 2022-03-12 | Sanitation Others | IMPROPER RECEPTACLES 1ST OCCURRENCE | GREEN 11 DEVELOPMENT CORP | $50 / $50 / $0 | 047362140N |
| No balance due Default PAID IN FULL · DEFAULTED | 2019-08-19 | Dos - Enforcement Agents | DIRTY SIDEWALK DIRTY AREA | KASTANOS | $130 / $130 / $0 | 042264943X |
| No balance due Default PAID IN FULL · DEFAULTED | 2019-06-21 | Pcs - Dohmh | FAIL TO ELIMINATE RODENT INFESTATION SHOWN BY ACTIVE RODENT SIGNS 1ST | KASTANOS | $600 / $600 / $0 | 0801640281 |
| No balance due PAID IN FULL · IN VIOLATION | 2016-12-10 | Sanitation Others | DIRTY AREA | KASTANOS | $100 / $100 / $0 | 0194080141 |
| No balance due HEARING COMPLETED · DISMISSED | 2016-11-01 | Dos - Enforcement Agents | STORAGE OF RECEPTACLES | KASTANOS | — / — / — | 041669645R |
| No balance due PAID IN FULL · SETTL IN-VIO | 2015-09-16 | Sanitation Others | DIRTY SIDEWALK DIRTY AREA | KASTANOS | $300 / $269 / $0 | 0186777425 |
| No balance due PAID IN FULL · SETTL IN-VIO | 2015-08-21 | Dos - Enforcement Agents | FAILURE TO PROPERLY PUT RECYCS OUT FOR COLLECTION 1TO8DWELLING UNITS | KASTANOS | $25 / $33 / $0 | 041815542R |
Showing 12 of 24 records. The API and the source dataset have the full list.
Source: OATH Hearings Division Case Status — city dataset updated 2026-11-02; data as of 2026-11-05
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
- 360141
- Last registered
- 2025-02-05
- Registration valid until
- 2025-09-01 ExpiredRegistrations must be renewed every year.
| Role | Name | Company | Business city |
|---|---|---|---|
| Agent | Ursula Kastanos | GREEN 11 DEVELOPMENT CORP | Smithtown, Ny |
| Sitemanager | Ursula Kastanos | ||
| Headofficer | Ursula Kastanos | Smithtown, Ny | |
| Officer | Ursula Kastanos | Smithtown, Ny | |
| Shareholder | Ursula Kastanos | Smithtown, Ny | |
| Corporateowner | GREEN 11 DEVELOPMENT CORP | Brooklyn, Ny |
Source: HPD Multiple Dwelling Registrations — city dataset updated 2026-11-04; data as of 2026-11-05; HPD Registration Contacts — city dataset updated 2026-11-04; data as of 2026-11-05
HPD housing-code violations 27 open of 40
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 · 2026-05-05 | A | 2026-05-05 | (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. | |
| Open Info Nov Sent Out · 2025-11-20 | I | 2025-11-20 | §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 | |
| Open Nov Sent Out · 2025-06-10 | A | 2025-06-10 | (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. | |
| Open Nov Sent Out · 2024-04-11 | A | 2024-04-11 | (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. | |
| Open Nov Sent Out · 2023-03-24 | A | 2023-03-24 | (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. | |
| Open Nov Sent Out · 2022-09-27 | C | 2022-09-27 | 1 | § 27-2005, 2007 ADM CODE REMOVE THE ILLEGAL FASTENING KEY OPERATED LOCK AT DOOR LEADING TO REAR YARD IN THE 1st ROOM FROM EAST AT SOUTH LOCATED AT APT 1, 1st STORY, 1st APARTMENT FROM WEST AT NORTH |
| Open Nov Sent Out · 2022-09-23 | A | 2022-09-23 | § 27-2045 ADM CODE POST A PROPER NOTICE OF SMOKE DETECTOR REQUIREMENTS, IN A FORM APPROVED BY THE COMMISSIONER, AT OR NEAR THE MAIL BOX AT PUBLIC HALL, 1st STORY | |
| Open Nov Sent Out · 2022-09-23 | C | 2022-09-23 | HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE | |
| Open Nov Sent Out · 2022-09-23 | C | 2022-09-23 | § 27-2033 ADM CODE POST NOTICE, IN FORM APPROVED BY THE DEPARTMENT, STATING THE NAME AND LOCATION OF THE PERSON DESIGNATED BY THE OWNER TO HAVE KEY TO BUILDINGS HEATING SYSTEM MISSING SIGN AT PUBLIC HALL, 1st STORY | |
| Open Nov Sent Out · 2022-09-23 | A | 2022-09-23 | § 329, M/D LAW AND DEPT. RULES AND REGS. PROVIDE A COMPLETED CERTIFICATE OF INSPECTION VISITS IN A PROPER FRAME AT OR NEAR MAILBOXES, BOTTOM EDGE OF FRAME BETWEEN 48-62 INCHES ABOVE FLOOR MISSING AT PUBLIC HALL, 1st STORY | |
| Open Nov Sent Out · 2022-09-23 | A | 2022-09-23 | § 26-1103 ADMIN. CODE: POST AND MAINTAIN A PROPER NOTICE ON WALL OF THE ENTRANCE STORY IN ENGLISH AND SPANISH ON THE AVAILABILITY OF THE AGENCYS HOUSING INFORMATION GUIDE. A SAMPLE NOTICE CAN BE FOUND AT WWW.NYC.GOV/HPD. AT PUBLIC HALL, 1st STORY | |
| Open Nov Sent Out · 2022-09-23 | A | 2022-09-23 | § 27-2005 HMC: POST, IN A FORM APPROVED BY THE COMMISSIONER, AND MAINTAIN A NOTICE IN A COMMON AREA OF THE BUILDING REGARDING THE PROCEDURES THAT SHOULD BE FOLLOWED WHEN A GAS LEAK IS SUSPECTED AT PUBLIC HALL | |
| Open Notice Of Issuance Sent To Tenant · 2022-09-23 | C | 2022-09-23 | 1 | HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 1, 1st STORY, 1st APARTMENT FROM WEST AT NORTH |
| Open Nov Sent Out · 2022-09-23 | A | 2022-09-23 | § 27-2046.1 HMC: POST A PROPER NOTICE OF CARBON MONOXIDE DETECTING DEVICE REQUIREMENTS, IN A FORM APPROVED BY THE COMMISSIONER, IN A COMMON AREA OF A CLASS A MULTIPLE DWELLING NEAR INSPECTION CERTIFICATE OR PROVIDE NOTICE TO TENANTS IN A PRIVATE DWELLING. | |
| Open Nov Sent Out · 2022-09-23 | A | 2022-09-23 | § 27-2045 ADM CODE POST A PROPER NOTICE OF SMOKE DETECTOR REQUIREMENTS, IN A FORM APPROVED BY THE COMMISSIONER, AT OR NEAR THE MAIL BOX AT PUBLIC HALL, 1st STORY | |
| Open Nov Sent Out · 2022-03-01 | A | 2022-03-01 | (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. | |
| Open Nov Sent Out · 2021-04-12 | A | 2021-04-12 | (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. | |
| Open Not Complied With · 2013-02-17 | B | 2010-09-09 | SECTION 27-2040 ADM CODE PROVIDE ADEQUATE LIGHTING AT OR NEAR THE OUTSIDE OF THE FRONT ENTRANCEWAY OF THE BUILDING AND KEEP SAME BURNING FROM SUNSET EVERY DAY TO SUNRISE ON THE DAY FOLLOWING ***MINIMUM 100 WATTS OF INCANDESCENT LIGHT REQUIRED*** | |
| Open First No Access To Re- Inspect Violation · 2013-02-17 | B | 2009-07-30 | 2 | SECTION 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE WOOD FLOOR IN THE 2nd ROOM FROM EAST LOCATED AT APT 2, 2nd STORY, 1st APARTMENT FROM WEST AT NORTH |
| Open First No Access To Re- Inspect Violation · 2013-02-17 | A | 2009-07-30 | 2 | SECTION 27-2043 ADM CODE PROVIDE A LOCK AND KEY TO THE ENTRANCE DOOR OF DWELLING UNIT AND, IF A CL A MULTIPLE DWELLING, ALSO DOOR KNOB IN THE ENTRANCE LOCATED AT APT 2, 2nd STORY, 1st APARTMENT FROM WEST AT NORTH |
Showing 20 of 40 records — open violations are listed first; the API lists every one. The API and the source dataset have the full list.
Source: HPD Housing Maintenance Code Violations — city dataset updated 2026-11-05; data as of 2026-11-05
HPD complaints 4
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 |
|---|---|---|---|---|
| 2022-09-13 | CLOSE | 1 | Unsanitary Condition – Garbage/Recycling Storage | The Department of Housing Preservation and Development inspected the following conditions. No violations were issued. The complaint has been closed. |
| 2022-09-13 | CLOSE | 1 | Unsanitary Condition – Pests | The Department of Housing Preservation and Development was not able to gain access to inspect the following conditions. The complaint has been closed. If the condition still exists, please file a new |
| 2022-09-13 | CLOSE | 1 | Unsanitary Condition – Pests | The Department of Housing Preservation and Development inspected the following conditions. Violations were issued. Information about specific violations is available at www.nyc.gov/hpd |
| 2021-09-03 | CLOSE | 1 | Door/Window – Door Frame Flooring/Stairs – Floor Electric – Outlet/Switch Plumbing – Water Supply | The Department of Housing Preservation and Development was not able to gain access to inspect the following conditions. The complaint has been closed. If the condition still exists, please file a new |
Source: HPD Housing Maintenance Code Complaints and Problems — city dataset updated 2026-11-05; data as of 2026-11-05
311 requests (last 12 months) 4
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 |
|---|---|---|---|---|
| 2026-07-12 | DSNY | Missed Collection – Compost | Closed | 2026-07-14 |
| 2026-03-03 | DEP | Noise – Noise: Alarms (NR3) | Closed | 2026-03-04 |
| 2026-01-08 | DCWP | Consumer Complaint – Residential Rental Agency | Closed | 2026-01-09 |
| 2026-01-08 | DCWP | Consumer Complaint – Residential Rental Agency | Closed | 2026-01-09 |
Source: 311 Service Requests from 2020 to Present — city dataset updated 2026-11-05; data as of 2026-11-05
Nearby properties
On Ralph Ave
- 523 Ralph Avenue
- 521 Ralph Avenue (18 open items)
- 524 Ralph Avenue (25 open items)
- 525 Ralph Avenue (12 open items)
- 519 Ralph Avenue
- 526 Ralph Avenue (15 open items)
- 517 Ralph Avenue
- 516 Ralph Avenue (65 open items)
- 528 Ralph Avenue (one open item)
- 515 Ralph Avenue (11 open items)
Same tax block (1375)
- 233 Buffalo Avenue (three open items)
- 225 Buffalo Avenue (21 open items)
- 219 Buffalo Avenue (two open items)
- 217 Buffalo Avenue (13 open items)
- 215 Buffalo Avenue (seven open items)
- 213 Buffalo Avenue (37 open items)
- 211 Buffalo Avenue
- 1578 Park Place
- 1600 Park Place (11 open items)
- 1630 Park Place (18 open items)
All properties on Ralph Ave, Brooklyn · All of Brooklyn 11233 (Ocean Hill)
Open-item counts as of November 5, 2026; each section lists its own dataset date. Machine-readable: JSON API · Markdown · Plain text · API & MCP docs