{
  "address": "3430–3432 21st Street, San Francisco, CA 94110",
  "path": "/san-francisco/mission/21st-street/3430/",
  "apn": "3607016",
  "block": "3607",
  "lot": "016",
  "eas_baseid": "362236",
  "coordinates": {
    "lat": 37.756966,
    "lng": -122.424119
  },
  "address_range": "3430–3432",
  "street_numbers_on_parcel": [
    "3430",
    "3432"
  ],
  "parcel": {
    "year_built": 1900,
    "units": 4,
    "stories": 2,
    "rooms": 11,
    "bathrooms": 4,
    "lot_area_sqft": 2848,
    "building_area_sqft": 3200,
    "use": "Multi-Family Residential",
    "property_class": "Apartment 4 units or less",
    "construction_type_code": "D",
    "zoning": "RH-2",
    "supervisor_district": 8,
    "assessor_neighborhood": "Eureka Valley/Dolores Heights",
    "analysis_neighborhood": "Mission",
    "property_location_raw": "3432 3430 21ST                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 42475,
    "assessed_improvement_value": 121727
  },
  "historic_status": {
    "ceqa_status_code": "A",
    "ceqa_status_code_article_10_11": "A*",
    "ceqa_status_label": "Historic resource",
    "reason": "Article 10 Historic District, California Register Historic District",
    "yearbuilt": "1900",
    "in_article_10_11_historic_district": true,
    "source": "sf-planning"
  },
  "historic_district": {
    "name": "Liberty Hill Historic District",
    "california_register_status": "Eligible (not listed)",
    "national_register_status": "Not listed",
    "article_10_11_status": "Article 10 historic district",
    "local_landmark_protection": true,
    "period_of_significance": "1860s–1906",
    "source": "sf-historic-districts"
  },
  "permits": [
    {
      "number": "M779707",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2017-04-20",
      "status_date": "2017-04-20",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201607061691",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2016-07-06",
      "status_date": "2016-12-29",
      "estimated_cost": 60000,
      "revised_cost": 75000,
      "description": "soft story retrofit per sfbc chapter 34b engineering criteria 2012 iebc appendix a-4. provide new steel moment frame and foundations. foundation anchorage and wood shear walls.",
      "source": "sf-building-permits"
    },
    {
      "number": "M579507",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2015-04-21",
      "status_date": "2015-04-21",
      "revised_cost": 1,
      "description": "street space and sidewalk repair",
      "source": "sf-building-permits"
    },
    {
      "number": "M234806",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2010-12-29",
      "status_date": "2010-12-29",
      "revised_cost": 1,
      "description": "sidewalk permit.",
      "source": "sf-building-permits"
    },
    {
      "number": "M81468",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2007-08-10",
      "status_date": "2007-08-10",
      "revised_cost": 0,
      "description": "street space & sidewalk",
      "source": "sf-building-permits"
    },
    {
      "number": "M20253",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2002-05-15",
      "status_date": "2002-09-15",
      "revised_cost": 0,
      "description": "sidewalk repair",
      "source": "sf-building-permits"
    },
    {
      "number": "200202270158",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2002-02-27",
      "status_date": "2002-04-17",
      "estimated_cost": 500,
      "revised_cost": 500,
      "description": "comply nov, repair side exterior stairs & rear exterior stairs",
      "source": "sf-building-permits"
    },
    {
      "number": "200101109553",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2001-01-10",
      "status_date": "2001-07-10",
      "estimated_cost": 15480,
      "revised_cost": 15480,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "9803743",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "1998-03-05",
      "status_date": "1998-04-03",
      "estimated_cost": 1000,
      "description": "investigate water damage where siding meets stucco facade",
      "source": "sf-building-permits"
    },
    {
      "number": "8510972",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1985-10-01",
      "status_date": "1986-02-26",
      "estimated_cost": 1000,
      "description": "increase s f water dept supply to meter",
      "source": "sf-building-permits"
    },
    {
      "number": "8506845",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1985-07-01",
      "status_date": "1986-03-04",
      "estimated_cost": 1000,
      "description": "bring into compliance as required by dahi",
      "source": "sf-building-permits"
    },
    {
      "number": "8312061",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1983-11-28",
      "status_date": "1984-05-14",
      "estimated_cost": 2300,
      "description": "remove old concret steps & install 7 new terrazzo steps",
      "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=21ST&street_type=ST&address_number=3430",
      "retrieved": "2026-07-31"
    },
    {
      "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=3607016&$order=closed_roll_year%20DESC&$limit=1",
      "retrieved": "2026-07-31"
    },
    {
      "id": "sf-building-permits",
      "name": "SF Dept. of Building Inspection via DataSF",
      "query": "https://data.sfgov.org/resource/i98e-djp9.json?block=3607&lot=016",
      "retrieved": "2026-07-31"
    },
    {
      "id": "sf-planning",
      "name": "SF Planning Department — Historic Resource Status by Parcel via DataSF",
      "query": "https://data.sfgov.org/resource/3tsw-4idn.json?apn=3607016",
      "retrieved": "2026-07-31"
    },
    {
      "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(-122.42411934559296%2037.756966414430444)%27)",
      "retrieved": "2026-07-31"
    }
  ]
}