{"bbl":"3034310003","bins":["3079573"],"address":"871 Knickerbocker Avenue, Brooklyn, NY 11207","address_line":"871 Knickerbocker Avenue","borough":"Brooklyn","zip":"11207","block":3431,"lot":3,"url":"https://nycpropertyfacts.com/ny/brooklyn/871-knickerbocker-avenue-3034310003","markdown_url":"https://nycpropertyfacts.com/ny/brooklyn/871-knickerbocker-avenue-3034310003.md","api_url":"https://nycpropertyfacts.com/api/v1/property/3034310003","summary":"871 Knickerbocker Avenue (Brooklyn, NY 11207; tax lot BBL 3034310003) is a 6-unit walk-up apartment building (building class C2: walk-up apartments, five or six families), built around 1906, on a 2,500 sq ft lot zoned R6. City tax records list the owner as FANNIE MAE; per ACRIS, a deed to this owner dated April 7, 2025 lists a price of $6,168,311 in a deed covering 2 lots. The Department of Finance's final market value for tax year 2027 is $956,000. As of October 31, 2026, NYC Open Data shows two active DOB violations, 13 open HPD violations and 19 OATH tickets with an unpaid balance. There were four 311 requests in the past 12 months and 31 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, “871 Knickerbocker Avenue, Brooklyn, NY 11207 (BBL 3034310003)”, data as of 2026-10-31, https://nycpropertyfacts.com/ny/brooklyn/871-knickerbocker-avenue-3034310003. 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":34,"dob_jobs_permit_not_signed_off":0,"dob_violations_active":2,"ecb_violations_active":0,"hpd_violations_open":13,"oath_tickets_unpaid":19,"data_as_of":"2026-10-31"},"facts":{"owner_of_record":"FANNIE MAE","building_class":"C2","building_class_description":"Walk-up apartments, five or six families","land_use":"Multi-family walk-up buildings","year_built":1906,"floors":3,"buildings":1,"residential_units":6,"total_units":6,"lot_area_sqft":2500,"building_area_sqft":4875,"zoning":["R6"],"historic_district":null,"landmark":null,"latitude":40.6916022,"longitude":-73.9051839,"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":"2026-10-31"},"assessment":{"tax_year":"2027","roll":"final","market_value":956000,"assessed_value":430200,"tax_class":"2A","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":"2026-10-31"},"last_priced_deed":{"document_id":"2025040700827002","date":"2025-04-07","amount":6168310.59,"doc_type":"DEED","lots_in_deed":2,"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":"2026-10-31"},"record_counts":{"permits":9,"violations":112,"complaints":35,"hearings":31,"sales":3,"owners":6},"sections":{"permits":"https://nycpropertyfacts.com/api/v1/property/3034310003/permits","violations":"https://nycpropertyfacts.com/api/v1/property/3034310003/violations","complaints":"https://nycpropertyfacts.com/api/v1/property/3034310003/complaints","hearings":"https://nycpropertyfacts.com/api/v1/property/3034310003/hearings","sales":"https://nycpropertyfacts.com/api/v1/property/3034310003/sales","owners":"https://nycpropertyfacts.com/api/v1/property/3034310003/owners"},"also_recorded_as":["871824 Knickerbocker Ave"],"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":"2026-10-31"},{"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":"2026-10-31"},{"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":"2026-10-30","data_as_of":"2026-10-31"},{"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":"2026-10-30","data_as_of":"2026-10-31"},{"key":"dob_violations","dataset_id":"3h2n-5cm9","dataset":"DOB Violations","url":"https://data.cityofnewyork.us/d/3h2n-5cm9","dataset_updated":"2026-10-31","data_as_of":"2026-10-31"},{"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":"2026-10-31"},{"key":"oath","dataset_id":"jz4z-kudi","dataset":"OATH Hearings Division Case Status","url":"https://data.cityofnewyork.us/d/jz4z-kudi","dataset_updated":"2026-10-31","data_as_of":"2026-10-31"},{"key":"hpd_violations","dataset_id":"wvxf-dwi5","dataset":"HPD Housing Maintenance Code Violations","url":"https://data.cityofnewyork.us/d/wvxf-dwi5","dataset_updated":"2026-10-31","data_as_of":"2026-10-31"},{"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":"2026-10-31","data_as_of":"2026-10-31"},{"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":"2026-10-31"},{"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":"2026-10-31"},{"key":"sr311","dataset_id":"erm2-nwe9","dataset":"311 Service Requests from 2020 to Present","url":"https://data.cityofnewyork.us/d/erm2-nwe9","dataset_updated":"2026-10-31","data_as_of":"2026-10-31"},{"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":"2026-10-31"},{"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":"2026-10-31"},{"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":"2026-10-31"},{"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":"2026-10-31"}],"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."}