{"bbl":"3033650103","bins":["3076912"],"address":"651 Knickerbocker Avenue, Brooklyn, NY 11221","address_line":"651 Knickerbocker Avenue","borough":"Brooklyn","zip":"11221","block":3365,"lot":103,"url":"https://nycpropertyfacts.com/ny/brooklyn/651-knickerbocker-avenue-3033650103","markdown_url":"https://nycpropertyfacts.com/ny/brooklyn/651-knickerbocker-avenue-3033650103.md","api_url":"https://nycpropertyfacts.com/api/v1/property/3033650103","summary":"651 Knickerbocker Avenue (Brooklyn, NY 11221; tax lot BBL 3033650103) is an 8-unit walk-up apartment building (building class C1: walk-up apartments, more than six families, no stores), built around 1931, on a 2,340 sq ft lot zoned R6. City tax records list the owner as SERLIN BUILDING LIMITED PARTNERSHIP; per ACRIS, a deed to this owner dated December 4, 2008 lists a price of $11,740,800 in a deed covering 10 lots. The Department of Finance's final market value for tax year 2027 is $1,788,000. As of October 31, 2026, NYC Open Data shows one active DOB violation, one open HPD violation and two OATH tickets with an unpaid balance. There were four 311 requests in the past 12 months and 10 HPD complaints since 2019. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)","how_to_cite":"NYC Property Facts, “651 Knickerbocker Avenue, Brooklyn, NY 11221 (BBL 3033650103)”, data as of 2026-10-31, https://nycpropertyfacts.com/ny/brooklyn/651-knickerbocker-avenue-3033650103. Source: NYC Open Data.","citation_note":"Quote the summary as-is and cite with how_to_cite (includes the canonical URL and the data-as-of date).","data_as_of":"2026-10-31","last_updated":"2026-10-31","open_items":{"total":4,"dob_jobs_permit_not_signed_off":0,"dob_violations_active":1,"ecb_violations_active":0,"hpd_violations_open":1,"oath_tickets_unpaid":2,"data_as_of":"2026-10-31"},"facts":{"owner_of_record":"SERLIN BUILDING LIMITED PARTNERSHIP","building_class":"C1","building_class_description":"Walk-up apartments, more than six families, no stores","land_use":"Multi-family walk-up buildings","year_built":1931,"floors":4,"buildings":1,"residential_units":8,"total_units":8,"lot_area_sqft":2340,"building_area_sqft":6500,"zoning":["R6"],"historic_district":null,"landmark":null,"latitude":40.6954832,"longitude":-73.9120265,"dataset_id":"64uk-42ks","dataset":"PLUTO (Dept. of City Planning)","url":"https://data.cityofnewyork.us/d/64uk-42ks","dataset_updated":"2026-08-24","data_as_of":"2026-11-02"},"assessment":{"tax_year":"2027","roll":"final","market_value":1788000,"assessed_value":804600,"tax_class":"2B","dataset_id":"8y4t-faws","dataset":"DOF Property Valuation and Assessment Data","url":"https://data.cityofnewyork.us/d/8y4t-faws","dataset_updated":"2026-09-14","data_as_of":"2026-11-02"},"last_priced_deed":{"document_id":"2008121000367001","date":"2008-12-04","amount":11740800,"doc_type":"DEED","lots_in_deed":10,"dataset_id":"bnx9-e6tj","dataset":"ACRIS Real Property Master","url":"https://data.cityofnewyork.us/d/bnx9-e6tj","dataset_updated":"2026-10-08","data_as_of":"2026-11-02"},"record_counts":{"permits":11,"violations":25,"complaints":14,"hearings":39,"sales":8,"owners":6},"sections":{"permits":"https://nycpropertyfacts.com/api/v1/property/3033650103/permits","violations":"https://nycpropertyfacts.com/api/v1/property/3033650103/violations","complaints":"https://nycpropertyfacts.com/api/v1/property/3033650103/complaints","hearings":"https://nycpropertyfacts.com/api/v1/property/3033650103/hearings","sales":"https://nycpropertyfacts.com/api/v1/property/3033650103/sales","owners":"https://nycpropertyfacts.com/api/v1/property/3033650103/owners"},"also_recorded_as":[],"sources":[{"key":"pluto","dataset_id":"64uk-42ks","dataset":"PLUTO (Dept. of City Planning)","url":"https://data.cityofnewyork.us/d/64uk-42ks","dataset_updated":"2026-08-24","data_as_of":"2026-11-02"},{"key":"footprints","dataset_id":"5zhs-2jue","dataset":"Building Footprints","url":"https://data.cityofnewyork.us/d/5zhs-2jue","dataset_updated":"2026-10-25","data_as_of":"2026-11-01"},{"key":"dob_permits_bis","dataset_id":"ipu4-2q9a","dataset":"DOB Permit Issuance (BIS)","url":"https://data.cityofnewyork.us/d/ipu4-2q9a","dataset_updated":"2026-10-31","data_as_of":"2026-10-31"},{"key":"dob_now_permits","dataset_id":"rbx6-tga4","dataset":"DOB NOW: Build – Approved Permits","url":"https://data.cityofnewyork.us/d/rbx6-tga4","dataset_updated":"2026-11-02","data_as_of":"2026-11-02"},{"key":"dob_jobs_bis","dataset_id":"ic3t-wcy2","dataset":"DOB Job Application Filings (BIS)","url":"https://data.cityofnewyork.us/d/ic3t-wcy2","dataset_updated":"2026-10-30","data_as_of":"2026-10-31"},{"key":"dob_now_jobs","dataset_id":"w9ak-ipjd","dataset":"DOB NOW: Build – Job Application Filings","url":"https://data.cityofnewyork.us/d/w9ak-ipjd","dataset_updated":"2026-11-01","data_as_of":"2026-11-02"},{"key":"dob_violations","dataset_id":"3h2n-5cm9","dataset":"DOB Violations","url":"https://data.cityofnewyork.us/d/3h2n-5cm9","dataset_updated":"2026-11-02","data_as_of":"2026-11-02"},{"key":"ecb_violations","dataset_id":"6bgk-3dad","dataset":"DOB ECB Violations","url":"https://data.cityofnewyork.us/d/6bgk-3dad","dataset_updated":"2026-10-31","data_as_of":"2026-11-02"},{"key":"oath","dataset_id":"jz4z-kudi","dataset":"OATH Hearings Division Case Status","url":"https://data.cityofnewyork.us/d/jz4z-kudi","dataset_updated":"2026-11-02","data_as_of":"2026-11-02"},{"key":"hpd_violations","dataset_id":"wvxf-dwi5","dataset":"HPD Housing Maintenance Code Violations","url":"https://data.cityofnewyork.us/d/wvxf-dwi5","dataset_updated":"2026-11-02","data_as_of":"2026-11-02"},{"key":"hpd_complaints","dataset_id":"ygpa-z7cr","dataset":"HPD Housing Maintenance Code Complaints and Problems","url":"https://data.cityofnewyork.us/d/ygpa-z7cr","dataset_updated":"2026-11-02","data_as_of":"2026-11-02"},{"key":"hpd_registrations","dataset_id":"tesw-yqqr","dataset":"HPD Multiple Dwelling Registrations","url":"https://data.cityofnewyork.us/d/tesw-yqqr","dataset_updated":"2026-10-28","data_as_of":"2026-11-02"},{"key":"hpd_contacts","dataset_id":"feu5-w2e2","dataset":"HPD Registration Contacts","url":"https://data.cityofnewyork.us/d/feu5-w2e2","dataset_updated":"2026-10-28","data_as_of":"2026-11-02"},{"key":"sr311","dataset_id":"erm2-nwe9","dataset":"311 Service Requests from 2020 to Present","url":"https://data.cityofnewyork.us/d/erm2-nwe9","dataset_updated":"2026-11-02","data_as_of":"2026-11-02"},{"key":"assessment","dataset_id":"8y4t-faws","dataset":"DOF Property Valuation and Assessment Data","url":"https://data.cityofnewyork.us/d/8y4t-faws","dataset_updated":"2026-09-14","data_as_of":"2026-11-02"},{"key":"acris_master","dataset_id":"bnx9-e6tj","dataset":"ACRIS Real Property Master","url":"https://data.cityofnewyork.us/d/bnx9-e6tj","dataset_updated":"2026-10-08","data_as_of":"2026-11-02"},{"key":"acris_legals","dataset_id":"8h5j-fqxa","dataset":"ACRIS Real Property Legals","url":"https://data.cityofnewyork.us/d/8h5j-fqxa","dataset_updated":"2026-10-08","data_as_of":"2026-11-02"},{"key":"acris_parties","dataset_id":"636b-3b5g","dataset":"ACRIS Real Property Parties","url":"https://data.cityofnewyork.us/d/636b-3b5g","dataset_updated":"2026-10-08","data_as_of":"2026-11-02"}],"disclaimer":"Independent site. Data from NYC Open Data; not affiliated with the City of New York. Facts are compiled automatically and may be incomplete or out of date; this is not a title search or an official record. Verify with the issuing agency."}