{
  "address": "4112 21st Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/21st-street/4112/",
  "apn": "2750016",
  "block": "2750",
  "lot": "016",
  "eas_baseid": "345455",
  "coordinates": {
    "lat": 37.756126,
    "lng": -122.437071
  },
  "parcel": {
    "year_built": 1908,
    "units": 1,
    "stories": 1,
    "rooms": 4,
    "bathrooms": 1,
    "bedrooms": 2,
    "lot_area_sqft": 1799,
    "building_area_sqft": 865,
    "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 4112 21ST                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 1325976,
    "assessed_improvement_value": 848776,
    "last_sale_date": "2021-05-10"
  },
  "historic_status": {
    "ceqa_status_code": "C",
    "ceqa_status_code_article_10_11": "C",
    "ceqa_status_label": "Not a historical resource",
    "reason": "Historic Resource Evaluation Response",
    "yearbuilt": "1908",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "202504164526",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2025-04-16",
      "status_date": "2025-04-17",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "administrative permit to document bathroom count of 5 as per permits 201705096079, 201909060951 and 202406043662",
      "source": "sf-building-permits"
    },
    {
      "number": "202406043642",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2024-06-04",
      "status_date": "2024-11-22",
      "estimated_cost": 1000,
      "revised_cost": 3000,
      "description": "add partition wall in kitchen. revision to permit 201705096079",
      "source": "sf-building-permits"
    },
    {
      "number": "202406043662",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2024-06-04",
      "status_date": "2024-11-12",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "to obtain final inspection for work approved under pa# 2017-0509-6079: 2019-0906-0951: 2021-1116-2469. all work is completed.",
      "source": "sf-building-permits"
    },
    {
      "number": "202311171030",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2023-11-17",
      "status_date": "2024-05-31",
      "estimated_cost": 4200,
      "revised_cost": 12050,
      "description": "install a new sprinkler monitoring system per nfpa 72-2022 section 23.8.5.5.1. with 1 fire alarm fontrol one unit wireless commercial fire alarm communicators 1 smoke detector above the facu 1 manual pull station with reference sprinkler per nfpa 13 pa# 202302141946.",
      "source": "sf-building-permits"
    },
    {
      "number": "202302141946",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2023-02-14",
      "status_date": "2024-05-31",
      "estimated_cost": 18500,
      "revised_cost": 46600,
      "description": "install new fire sprinklers througout bldg per nfpa 13r including 2\" dedicated service. ref pa# 201705096079s1",
      "source": "sf-building-permits"
    },
    {
      "number": "202111162469",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2021-11-16",
      "status_date": "2024-11-12",
      "estimated_cost": 1,
      "revised_cost": 10000,
      "description": "revision to shoring plan. revision to permits 201705096079 and 202109077884.",
      "source": "sf-building-permits"
    },
    {
      "number": "202109077884",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2021-09-07",
      "status_date": "2024-11-12",
      "estimated_cost": 9693,
      "revised_cost": 9693,
      "description": "commencement of work not started under previously approved permit app#201909060951",
      "source": "sf-building-permits"
    },
    {
      "number": "201909060951",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "2019-09-06",
      "status_date": "2024-11-12",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "alter site: admin permit to pa#201705096079, correct permit form slope of work: \"remodel and addition to an existing single family residence from 1009 sq ft to 3475 sq ft\" work includes new basement, new 3rd floor addition, remodel of all existing bath, bedroom and kitchen. basement height 27'-7\".",
      "source": "sf-building-permits"
    },
    {
      "number": "201705096079",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "2017-05-09",
      "status_date": "2024-11-12",
      "estimated_cost": 550000,
      "revised_cost": 550000,
      "description": "remodel & addition to (e) 1006 sf residence to 3443 sf. all bedrooms, bathrooms & kitchens are to be remodeled. bath increase 1 to 2.5 & bedroom increase from 2 to 5.",
      "source": "sf-building-permits"
    },
    {
      "number": "200809161761",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2008-09-16",
      "status_date": "2008-10-30",
      "estimated_cost": 9693,
      "revised_cost": 9693,
      "description": "reroofing",
      "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=4112",
      "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=2750016&$order=closed_roll_year%20DESC&$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=2750&lot=016",
      "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=2750016",
      "retrieved": "2026-07-28"
    }
  ]
}