{
  "address": "550 Liberty Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/liberty-street/550/",
  "apn": "3603060",
  "block": "3603",
  "lot": "060",
  "eas_baseid": "361969",
  "coordinates": {
    "lat": 37.757196,
    "lng": -122.433567
  },
  "parcel": {
    "year_built": 1900,
    "units": 1,
    "stories": 1,
    "rooms": 6,
    "bathrooms": 1,
    "lot_area_sqft": 2850,
    "building_area_sqft": 1642,
    "use": "Single Family Residential",
    "property_class": "Dwelling",
    "construction_type_code": "D",
    "zoning": "RH-2",
    "supervisor_district": 8,
    "assessor_neighborhood": "Eureka Valley/Dolores Heights",
    "analysis_neighborhood": "Castro/Upper Market",
    "property_location_raw": "0000 0550 LIBERTY             ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 614786,
    "assessed_improvement_value": 656280,
    "last_sale_date": "1999-10-22"
  },
  "historic_status": {
    "ceqa_status_code": "A",
    "ceqa_status_code_article_10_11": "A",
    "ceqa_status_label": "Historic resource",
    "reason": "California Register Historic District",
    "yearbuilt": "1900",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "historic_district": {
    "name": "Castro & Liberty Streets Historic District",
    "california_register_status": "Eligible (not listed)",
    "national_register_status": "Not listed",
    "article_10_11_status": "No local landmark protection",
    "local_landmark_protection": false,
    "period_of_significance": "1897–1906",
    "source": "sf-historic-districts"
  },
  "permits": [
    {
      "number": "200409245180",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2004-09-24",
      "status_date": "2004-12-13",
      "estimated_cost": 15000,
      "revised_cost": 15000,
      "description": "bath remodel new tile,new tub & toilet no exterior work no well chanes",
      "source": "sf-building-permits"
    },
    {
      "number": "200311261224",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2003-11-26",
      "status_date": "2004-01-14",
      "estimated_cost": 12000,
      "revised_cost": 12000,
      "description": "stair replacement and room support",
      "source": "sf-building-permits"
    },
    {
      "number": "200211010546",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2002-11-01",
      "status_date": "2002-12-03",
      "estimated_cost": 13775,
      "revised_cost": 13775,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "200006061945",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2000-06-06",
      "status_date": "2000-06-30",
      "estimated_cost": 1000,
      "revised_cost": 1000,
      "description": "final expired permit 20000124817",
      "source": "sf-building-permits"
    },
    {
      "number": "20000124817",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2000-01-24",
      "status_date": "2000-05-24",
      "revised_cost": 1,
      "description": "revision to #9927353",
      "source": "sf-building-permits"
    },
    {
      "number": "9927353",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1999-12-31",
      "status_date": "2001-03-09",
      "estimated_cost": 8000,
      "revised_cost": 8000,
      "description": "replace four footings, install four shear walls",
      "source": "sf-building-permits"
    },
    {
      "number": "9926835",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1999-12-22",
      "status_date": "2000-12-22",
      "estimated_cost": 37500,
      "description": "remove/repl foundation, wood floor & concrete",
      "source": "sf-building-permits"
    },
    {
      "number": "9714628",
      "type": "otc alterations permit",
      "status": "approved",
      "filed": "1997-08-04",
      "status_date": "1997-08-04",
      "estimated_cost": 500,
      "description": "to clear complaint #9701043",
      "source": "sf-building-permits"
    },
    {
      "number": "9710335S",
      "type": "additions alterations or repairs",
      "status": "cancelled",
      "filed": "1997-06-06",
      "status_date": "1999-05-01",
      "estimated_cost": 50000,
      "description": "demolish existing rear structures/buid new bay window stairs",
      "source": "sf-building-permits"
    },
    {
      "number": "9402157",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1994-02-09",
      "status_date": "1994-06-07",
      "estimated_cost": 1400,
      "description": "cap 20' of foundation according to table 29a",
      "source": "sf-building-permits"
    }
  ],
  "sources": [
    {
      "id": "sf-eas-addresses",
      "name": "SF Enterprise Addressing System via DataSF",
      "query": "https://data.sfgov.org/resource/3mea-di5p.json?street_name=LIBERTY&street_type=ST&address_number=550",
      "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=3603060&$order=closed_roll_year%20DESC&$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=3603&lot=060",
      "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=3603060",
      "retrieved": "2026-07-28"
    },
    {
      "id": "sf-historic-districts",
      "name": "SF Planning Department — Historic Districts via DataSF",
      "query": "https://data.sfgov.org/resource/63x5-g3m4.json?$where=intersects(the_geom,%20%27POINT(-122.43356732005823%2037.75719560624832)%27)",
      "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"
    }
  ],
  "historic_survey": {
    "survey": "Eureka Valley Historic Context Statement (2017)",
    "source": "eureka-valley-context-statement",
    "style": "Queen Anne",
    "year_built_as_surveyed": "1897",
    "note": "Listed among the houses Fernando Nelson built in Eureka Valley. The statement is reconnaissance-level and says inclusion in it is not a judgement on a building's worthiness for preservation. It records it as an end-gable dwelling with entry porch and bay window. The statement names Nelson's houses at 550-572 Liberty Street, and the late nineteenth and early twentieth-century dwellings on Liberty Street generally, as concentrations of developer housing worth studying as potential historic districts."
  },
  "building": {
    "builder": "Fernando Nelson"
  }
}