{
  "address": "3310–3312 16th Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/16th-street/3310/",
  "apn": "3557011",
  "block": "3557",
  "lot": "011",
  "eas_baseid": "359446",
  "coordinates": {
    "lat": 37.764844,
    "lng": -122.426833
  },
  "address_range": "3310–3312",
  "street_numbers_on_parcel": [
    "3310",
    "3312"
  ],
  "parcel": {
    "year_built": 1906,
    "units": 6,
    "stories": 3,
    "rooms": 24,
    "bathrooms": 6,
    "lot_area_sqft": 2539,
    "building_area_sqft": 5748,
    "use": "Multi-Family Residential",
    "property_class": "Apartment 5 to 14 Units",
    "construction_type_code": "D",
    "zoning": "RH-3",
    "supervisor_district": 8,
    "assessor_neighborhood": "Mission Dolores",
    "analysis_neighborhood": "Castro/Upper Market",
    "property_location_raw": "3312 3310 16TH                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 44325,
    "assessed_improvement_value": 96309
  },
  "historic_status": {
    "ceqa_status_code": "A",
    "ceqa_status_code_article_10_11": "A",
    "ceqa_status_label": "Historic resource",
    "reason": "California Register Historic District, Historic Survey Result",
    "yearbuilt": "1906",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "historic_district": {
    "name": "Alert Alley Early Residential 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": "1890–1910",
    "source": "sf-historic-districts"
  },
  "permits": [
    {
      "number": "202511058972",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2025-11-05",
      "status_date": "2025-11-05",
      "estimated_cost": 28000,
      "revised_cost": 28000,
      "description": "exterior deck and stair repairs, less 50%, in the back of building. common area. non street facing in kind",
      "source": "sf-building-permits"
    },
    {
      "number": "202303063064",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2023-03-06",
      "status_date": "2023-03-17",
      "estimated_cost": 5000,
      "revised_cost": 8664,
      "description": "upgrade of fire alarm system to comply with sffc 1103.7.6.1. ref pa 2018-1009-2566",
      "source": "sf-building-permits"
    },
    {
      "number": "201902193186",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2019-02-19",
      "status_date": "2019-04-09",
      "estimated_cost": 5500,
      "revised_cost": 5500,
      "description": "repair less than 50% of stairs at back. not visible form street.",
      "source": "sf-building-permits"
    },
    {
      "number": "M1001530",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2018-11-01",
      "status_date": "2018-11-01",
      "revised_cost": 0,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201810092566",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2018-10-09",
      "status_date": "2018-12-06",
      "estimated_cost": 5000,
      "revised_cost": 5000,
      "description": "replacing facp, installing smoke detector, installing new radio transmitter, replacing manual pull stations. this installation is in compliance with u.l. standards and certified by sf fire protection",
      "source": "sf-building-permits"
    },
    {
      "number": "201709158398",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "2017-09-15",
      "status_date": "2018-10-05",
      "estimated_cost": 50000,
      "revised_cost": 80000,
      "description": "soft story retrofit per sfebc chapter 4d, engineering criteria:",
      "source": "sf-building-permits"
    },
    {
      "number": "M85267",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2007-09-07",
      "status_date": "2007-09-07",
      "revised_cost": 0,
      "description": "sidewalk permit only.",
      "source": "sf-building-permits"
    },
    {
      "number": "9820911",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1998-10-14",
      "status_date": "2000-10-20",
      "estimated_cost": 7585,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "8401430",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "1984-02-09",
      "status_date": "1985-12-19",
      "estimated_cost": 75000,
      "description": "repair fire damage",
      "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=16TH&street_type=ST&address_number=3310",
      "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=3557011&$order=closed_roll_year%20DESC&$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=3557&lot=011",
      "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=3557011",
      "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(-122.42683300144355%2037.764843593868555)%27)",
      "retrieved": "2026-07-28"
    },
    {
      "id": "inner-mission-north-context-statement",
      "name": "San Francisco Planning Department, Inner Mission North 1853-1943 Context Statement, dated on its cover 2005, adopted 2004",
      "query": "https://citypln-m-extnl.sfgov.org/SharedLinks.aspx?accesskey=ef5726f8f01317048294fa4befc3151c63c7d0f43ec4a26cbf5c21877a313274&VaultGUID=A4A7DACD-B0DC-4322-BD29-F6F07103C6E0",
      "listing": "https://sfplanning.org/project/sf-histories-historic-context-statements#completed",
      "label": "Inner Mission North Context Statement, adopted 2004",
      "retrieved": "2026-08-15"
    }
  ],
  "historic_survey": {
    "survey": "Inner Mission North Context Statement, adopted 2004",
    "source": "inner-mission-north-context-statement",
    "note": "Contributor to the Mission Reconstruction District locally significant area (3310-3312 16th St). Criterion C: the survey's proposed district for the northern Mission's rebuilding after the 1906 earthquake and fire, period of significance May 1906–1913, predominantly Classical Revival, Edwardian and Mission Revival in wood frame construction. Contributor to the Inner Mission Commercial Corridor locally significant area (3310-3312 16th). Formerly called the 16th Street Commercial Corridor. Criterion C: San Francisco's largest concentration of residential-over-commercial and small-scale commercial buildings, spanning both pre-1906 and post-disaster construction, dated c. 1870s–1931."
  }
}