{
  "address": "4200 20th Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/20th-street/4200/",
  "apn": "2696014A",
  "block": "2696",
  "lot": "014A",
  "eas_baseid": "344431",
  "coordinates": {
    "lat": 37.757772,
    "lng": -122.435074
  },
  "parcel": {
    "year_built": 1925,
    "units": 1,
    "stories": 1,
    "rooms": 7,
    "bathrooms": 1,
    "lot_area_sqft": 3750,
    "building_area_sqft": 1800,
    "use": "Single Family Residential",
    "property_class": "Dwelling",
    "construction_type_code": "D",
    "zoning": "RH-3",
    "supervisor_district": 8,
    "assessor_neighborhood": "Eureka Valley/Dolores Heights",
    "analysis_neighborhood": "Castro/Upper Market",
    "property_location_raw": "0000 4200 20TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 432856,
    "assessed_improvement_value": 874773,
    "last_sale_date": "2002-05-30"
  },
  "historic_status": {
    "ceqa_status_code": "A",
    "ceqa_status_code_article_10_11": "A*",
    "ceqa_status_label": "Historic resource",
    "reason": "Article 10 Individual Landmark",
    "yearbuilt": "1925",
    "in_article_10_11_historic_district": true,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "M421907",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2013-08-29",
      "status_date": "2013-08-29",
      "revised_cost": 1,
      "description": "street space permit",
      "source": "sf-building-permits"
    },
    {
      "number": "9718543",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1997-09-22",
      "status_date": "1999-02-24",
      "estimated_cost": 4600,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "9710202",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1997-06-05",
      "status_date": "1997-06-09",
      "estimated_cost": 300,
      "description": "dry rot repair",
      "source": "sf-building-permits"
    }
  ],
  "sources": [
    {
      "id": "corbett-heights-neighbors",
      "name": "Corbett Heights Neighbors, \"May Neighborhood News\", Vol. VII, No. 5 (1 May 2025)",
      "query": "https://corbettneighbors.optin.com/newsletter/awlist6655060/MjcwNjM4NTY=/may-neighborhood-news.htm",
      "retrieved": "2026-09-03"
    },
    {
      "id": "sf-eas-addresses",
      "name": "SF Enterprise Addressing System via DataSF",
      "query": "https://data.sfgov.org/resource/3mea-di5p.json?street_name=20TH&street_type=ST&address_number=4200",
      "retrieved": "2026-07-28"
    },
    {
      "id": "sf-assessor-roll",
      "name": "SF Office of the Assessor-Recorder via DataSF (2025 secured roll)",
      "query": "https://data.sfgov.org/resource/wv5m-vpq2.json?parcel_number=2696014A&$order=closed_roll_year%20DESC&$limit=1",
      "retrieved": "2026-07-28"
    },
    {
      "id": "sf-building-permits",
      "name": "SF Dept. of Building Inspection via DataSF",
      "query": "https://data.sfgov.org/resource/i98e-djp9.json?block=2696&lot=014A",
      "retrieved": "2026-07-28"
    },
    {
      "id": "sf-planning",
      "name": "SF Planning Department — Historic Resource Status by Parcel via DataSF",
      "query": "https://data.sfgov.org/resource/3tsw-4idn.json?apn=2696014A",
      "retrieved": "2026-07-28"
    },
    {
      "id": "eureka-valley-context-statement",
      "name": "Elaine B. Stiles, Eureka Valley Historic Context Statement, prepared for the Eureka Valley Neighborhood Association, adopted by the Historic Preservation Commission December 20, 2017",
      "query": "http://default.sfplanning.org/Preservation/EurekaValleyHCS/hp_eureka_valley_hcs_HCS_FINAL-122017.pdf",
      "listing": "https://sfplanning.org/project/sf-histories-historic-context-statements#completed",
      "label": "Eureka Valley Historic Context Statement, adopted 2017",
      "retrieved": "2026-08-14"
    },
    {
      "id": "article-10-lm322",
      "name": "San Francisco Planning, Article 10 landmark designation: Landmark No. 322, Bob Ross House (Board of Supervisors ordinance)",
      "query": "https://citypln-m-extnl.sfgov.org/external/link.ashx?Action=Download&ObjectVersion=-1&vault={A4A7DACD-B0DC-4322-BD29-F6F07103C6E0}&objectGUID={574326D4-448B-4B93-AE9F-D0C8B0C85232}&fileGUID={F60CD44E-DA38-468B-9593-B15032DA6622}",
      "label": "SF Planning, landmark designation",
      "retrieved": "2026-09-30"
    }
  ],
  "historic_survey": {
    "survey": "Eureka Valley Historic Context Statement (2017)",
    "source": "eureka-valley-context-statement",
    "note": "Put forward as possibly eligible for the California Register for its association with Bob Ross (1934-2003), founder and publisher of the Bay Area Reporter, cofounder of the Tavern Guild in 1962 and of Operation Concern, who held political and professional events for the LGBTQ community at the house through the 1970s."
  },
  "historical_record": [
    {
      "date": "1925",
      "kind": "construction",
      "description": "Built as a two-story corner house with a brick-clad ground floor, twin arched garage openings and a stucco upper floor.",
      "source": "article-10-lm322"
    },
    {
      "date": "2025-04-02",
      "kind": "designation",
      "summary": "Named a landmark candidate",
      "description": "Put forward as a candidate for individual landmark designation at a District 8 community forum held by the district supervisor and San Francisco Planning, one of twenty-one buildings on the list.",
      "source": "corbett-heights-neighbors"
    },
    {
      "date": "2026-04-30",
      "kind": "designation",
      "description": "Designated San Francisco Landmark No. 322, Bob Ross House.",
      "source": "article-10-lm322"
    }
  ],
  "building": {
    "builder": "Orrin Knox and Son"
  },
  "notable_residents": [
    {
      "name": "Bob Ross",
      "period": "1977–1993",
      "detail": "Home of Bob Ross, co-founder (1971) and longtime publisher of the Bay Area Reporter, who held frequent political and professional gatherings here; he died in 2003.",
      "source": "article-10-lm322"
    }
  ],
  "city_landmark": {
    "name": "Bob Ross House",
    "number": 322,
    "source": "article-10-lm322"
  }
}