{
  "address": "3434 21st Street, San Francisco, CA 94110",
  "path": "/san-francisco/mission/21st-street/3434/",
  "apn": "3607017",
  "block": "3607",
  "lot": "017",
  "eas_baseid": "362237",
  "coordinates": {
    "lat": 37.756961,
    "lng": -122.424206
  },
  "parcel": {
    "year_built": 1900,
    "units": 2,
    "stories": 2,
    "rooms": 13,
    "bathrooms": 3,
    "lot_area_sqft": 2848,
    "building_area_sqft": 3415,
    "use": "Multi-Family Residential",
    "property_class": "Dwellings - Apt 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": "0000 3434 21ST                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 194619,
    "assessed_improvement_value": 476753
  },
  "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": "202506178822",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2025-06-17",
      "status_date": "2026-07-20",
      "estimated_cost": 25000,
      "revised_cost": 25000,
      "description": "repairs to rotted front steps, repair dry rot, replace treads and risers, replace front newel post, less than 50% replacement",
      "source": "sf-building-permits"
    },
    {
      "number": "M797647",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2017-06-15",
      "status_date": "2017-06-15",
      "revised_cost": 0,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201511193151",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2015-11-19",
      "status_date": "2015-12-04",
      "estimated_cost": 1000,
      "revised_cost": 1000,
      "description": "install dryer vent to comply with nov#201575951",
      "source": "sf-building-permits"
    },
    {
      "number": "M630607",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2015-10-19",
      "status_date": "2015-10-19",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "M621108",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2015-09-10",
      "status_date": "2015-09-10",
      "revised_cost": 0,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201509046220",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2015-09-04",
      "status_date": "2015-10-08",
      "estimated_cost": 21000,
      "revised_cost": 21000,
      "description": "remove existing roof and replace with in kind composition shingles and modified bituman membrane roofing system. no change to the facade, roofline, or appearance.",
      "source": "sf-building-permits"
    },
    {
      "number": "200307300771",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2003-07-30",
      "status_date": "2003-09-15",
      "estimated_cost": 12000,
      "revised_cost": 12000,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "9012157",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1990-06-21",
      "status_date": "1991-03-04",
      "estimated_cost": 7000,
      "description": "renewal of permit #8812231 for completion of work",
      "source": "sf-building-permits"
    },
    {
      "number": "8908813",
      "type": "additions alterations or repairs",
      "status": "cancelled",
      "filed": "1989-05-25",
      "status_date": "1989-12-07",
      "estimated_cost": 1,
      "description": "relocate rire escape to front building.",
      "source": "sf-building-permits"
    },
    {
      "number": "8812231",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "1988-08-22",
      "status_date": "1991-03-04",
      "estimated_cost": 100000,
      "description": "for extension of expired permit # 08703211",
      "source": "sf-building-permits"
    },
    {
      "number": "8703211",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "1987-03-11",
      "status_date": "1988-07-28",
      "estimated_cost": 150000,
      "description": "horizontal extension, apartment added to lower floor",
      "source": "sf-building-permits"
    },
    {
      "number": "8612380",
      "type": "additions alterations or repairs",
      "status": "cancelled",
      "filed": "1986-10-07",
      "status_date": "1987-03-17",
      "estimated_cost": 100000,
      "description": "restoration of ex. single family dwelling",
      "source": "sf-building-permits"
    },
    {
      "number": "8609733",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1986-08-08",
      "status_date": "1986-12-09",
      "estimated_cost": 1000,
      "description": "demolish sheetrock in 3 rooms in existing interior",
      "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=3434",
      "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=3607017&$order=closed_roll_year%20DESC&$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=017",
      "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=3607017",
      "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(-122.42420557561397%2037.756961221889064)%27)",
      "retrieved": "2026-07-31"
    }
  ]
}