{
  "address": "3824 21st Street, San Francisco, CA 94114",
  "path": "/san-francisco/castro/21st-street/3824/",
  "apn": "3603011",
  "block": "3603",
  "lot": "011",
  "eas_baseid": "361922",
  "coordinates": {
    "lat": 37.756431,
    "lng": -122.432999
  },
  "parcel": {
    "year_built": 1905,
    "units": 1,
    "stories": 2,
    "rooms": 6,
    "bathrooms": 2,
    "lot_area_sqft": 2850,
    "building_area_sqft": 1450,
    "lot_depth_ft": 14,
    "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 3824 21ST                ST0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 1107968,
    "assessed_improvement_value": 738643,
    "last_sale_date": "2001-07-24"
  },
  "historic_status": {
    "ceqa_status_code": "A",
    "ceqa_status_code_article_10_11": "A",
    "ceqa_status_label": "Historic resource",
    "reason": "California Register Historic District",
    "yearbuilt": "1905",
    "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": "202603097163",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2026-03-09",
      "status_date": "2026-03-23",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "revision to pa# 202312192726: removal of dumbwaiter. skylight product change. back window type change, upper back window slight size change. removal of 2nd fl hvac & replacement w/ whole house on demand boiler on 2nd fl. deck shape change, interior loft railing change from glass to cable.",
      "source": "sf-building-permits"
    },
    {
      "number": "202508122846",
      "type": "otc alterations permit",
      "status": "withdrawn",
      "filed": "2025-08-12",
      "status_date": "2026-03-23",
      "estimated_cost": 100,
      "revised_cost": 1,
      "description": "revision to 201203196276 s1; include - removal of full house dumbwaiter and shaft, removal of hvac from the 2nd flr, 2nd replaced by radiant in walls, removal of house water heater and replaced by whole house on demand boiler on 2nd flr, skylight model changes, back window change.",
      "source": "sf-building-permits"
    },
    {
      "number": "202507140701",
      "type": "otc alterations permit",
      "status": "withdrawn",
      "filed": "2025-07-14",
      "status_date": "2026-03-23",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "revision to pa # 2023-1219-2726. changing the rear facing windows at the bay windows (2nd fl) from double hung (on approved permit) to casement. also slight change in attic window size at back of the house.",
      "source": "sf-building-permits"
    },
    {
      "number": "202410022190",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2024-10-02",
      "status_date": "2026-03-20",
      "estimated_cost": 20000,
      "revised_cost": 27040,
      "description": "remodel 1 bathroom in kind.",
      "source": "sf-building-permits"
    },
    {
      "number": "202312192726",
      "type": "additions alterations or repairs",
      "status": "issued",
      "filed": "2023-12-19",
      "status_date": "2024-12-02",
      "estimated_cost": 200000,
      "revised_cost": 200000,
      "description": "renovation of (e) sfh includes reconfiguration of upper level, adding windows to rear exterior of bldg, and addition of a rear upper level deck to rear of home.",
      "source": "sf-building-permits"
    },
    {
      "number": "201203196276",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-03-19",
      "status_date": "2012-04-18",
      "estimated_cost": 5800,
      "revised_cost": 5800,
      "description": "to comply complaint #201147606. repair leak in roof & replace leaking siding in kind at rear (less than 50%) not visible from street.",
      "source": "sf-building-permits"
    },
    {
      "number": "201203135994",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-03-13",
      "status_date": "2012-04-18",
      "estimated_cost": 4500,
      "revised_cost": 4500,
      "description": "repair rotted front porch and replace in kind, replace any rotted frraming and install new t&g wood deck, to comply with notice of violation 201203141 (less than 50% repair) in kind",
      "source": "sf-building-permits"
    },
    {
      "number": "200106050733",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "2001-06-05",
      "status_date": "2002-03-13",
      "estimated_cost": 2000,
      "revised_cost": 2000,
      "description": "rev.to appl 9912444s app east retaining wall, threaded rod to foundation, parallam beam to 6\"x16\"",
      "source": "sf-building-permits"
    },
    {
      "number": "9912444S",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "2000-03-07",
      "status_date": "2001-06-18",
      "estimated_cost": 60000,
      "revised_cost": 60000,
      "description": "new deck/install door/windows/extnd fmly room/nw wall openg",
      "source": "sf-building-permits"
    },
    {
      "number": "9922331",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1999-10-21",
      "status_date": "2000-10-24",
      "estimated_cost": 8000,
      "description": "reroofing",
      "source": "sf-building-permits"
    },
    {
      "number": "9510403",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "1995-07-07",
      "status_date": "1999-03-01",
      "estimated_cost": 1,
      "description": "addition permit required for underpinning work re a#9503949s",
      "source": "sf-building-permits"
    },
    {
      "number": "9413611",
      "type": "additions alterations or repairs",
      "status": "expired",
      "filed": "1994-09-02",
      "status_date": "1995-04-07",
      "estimated_cost": 22500,
      "description": "kitchen and bathroom remoeling",
      "source": "sf-building-permits"
    },
    {
      "number": "9219068S",
      "type": "additions alterations or repairs",
      "status": "cancelled",
      "filed": "1992-11-03",
      "status_date": "1994-03-28",
      "estimated_cost": 150000,
      "description": "horiz addition to rear. kitch & bath renovation & addition.",
      "source": "sf-building-permits"
    },
    {
      "number": "8713234",
      "type": "additions alterations or repairs",
      "status": "complete",
      "filed": "1987-09-14",
      "status_date": "1988-01-06",
      "estimated_cost": 7000,
      "description": "alter floor joists, dry rot repair, remodel bath, sheetrock",
      "source": "sf-building-permits"
    },
    {
      "number": "8707791",
      "type": "otc alterations permit",
      "status": "expired",
      "filed": "1987-06-04",
      "status_date": "1988-02-08",
      "estimated_cost": 9000,
      "revised_cost": 0,
      "description": "replace lower exist joist, foundation, remodel kitchen, bath",
      "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=3824",
      "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=3603011&$order=closed_roll_year%20DESC&$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=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=3603011",
      "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(-122.43299886324807%2037.756431381989806)%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": "1903-1904",
    "address_as_surveyed": "3816 to 3836 21st Street",
    "note": "Listed among the houses the builder John (or Jonathan) Anderson put up in Eureka Valley; the statement gives his signature detail as an urn of flowers at the outer edges of the second-storey wall beneath the gable. The statement is reconnaissance-level and says inclusion in it is not a judgement on a building's worthiness for preservation. It counts fourteen 1.5-storey end-gable dwellings with bay window and entry porch in the group and names it as a concentration of developer housing worth studying as a potential historic district."
  },
  "building": {
    "builder": "John Anderson"
  }
}