{
 "address": "3690 21st Street, San Francisco, CA 94114",
 "path": "/san-francisco/castro/21st-street/3690/",
 "apn": "3605022",
 "block": "3605",
 "lot": "022",
 "eas_baseid": "362094",
 "coordinates": {
  "lat": 37.756544,
  "lng": -122.429807
 },
 "parcel": {
  "year_built": 1930,
  "units": 1,
  "stories": 3,
  "rooms": 10,
  "bathrooms": 2,
  "bedrooms": 2,
  "lot_area_sqft": 5985,
  "building_area_sqft": 4624,
  "basement_area_sqft": 1430,
  "lot_depth_ft": 5,
  "use": "Single Family Residential",
  "property_class": "Dwelling",
  "construction_type_code": "D",
  "zoning": "RH-1",
  "supervisor_district": 8,
  "assessor_neighborhood": "Eureka Valley/Dolores Heights",
  "analysis_neighborhood": "Castro/Upper Market",
  "property_location_raw": "0000 3690 21ST                ST0000"
 },
 "assessment": {
  "roll_year": 2025,
  "assessed_land_value": 3617190,
  "assessed_improvement_value": 1550224,
  "last_sale_date": "2021-12-16"
 },
 "historic_status": {
  "ceqa_status_code": "B",
  "ceqa_status_code_article_10_11": "B",
  "ceqa_status_label": "Unevaluated",
  "reason": "Historic Survey Result and 45 years or older",
  "yearbuilt": "1930",
  "in_article_10_11_historic_district": false,
  "source": "sf-planning"
 },
 "permits": [
  {
   "number": "202411134955",
   "type": "otc alterations permit",
   "status": "issued",
   "filed": "2024-11-13",
   "status_date": "2025-07-01",
   "estimated_cost": 1,
   "revised_cost": 1,
   "description": "no work necessary other than installing a mini-split in storage room #1 (aka media room) and an outside air-fan in storage room #2 ( aka gym). convert e storage in basement into habitable space.",
   "source": "sf-building-permits"
  },
  {
   "number": "202311090534",
   "type": "otc alterations permit",
   "status": "complete",
   "filed": "2023-11-09",
   "status_date": "2024-04-24",
   "estimated_cost": 4800,
   "revised_cost": 4800,
   "description": "remove and replace leaking window at lower level. at rear. same size & location. in-kind.",
   "source": "sf-building-permits"
  },
  {
   "number": "201209180004",
   "type": "otc alterations permit",
   "status": "complete",
   "filed": "2012-09-18",
   "status_date": "2012-10-11",
   "estimated_cost": 1,
   "revised_cost": 1,
   "description": "to obtain final inspection for work approved under pa#201005263228. all work is complete.",
   "source": "sf-building-permits"
  },
  {
   "number": "201209180005",
   "type": "otc alterations permit",
   "status": "complete",
   "filed": "2012-09-18",
   "status_date": "2012-10-11",
   "estimated_cost": 1,
   "revised_cost": 1,
   "description": "to obtain final inspection for work approved under pa#200902111866. all work is complete.",
   "source": "sf-building-permits"
  },
  {
   "number": "201209189999",
   "type": "otc alterations permit",
   "status": "complete",
   "filed": "2012-09-18",
   "status_date": "2012-10-11",
   "estimated_cost": 1,
   "revised_cost": 1,
   "description": "to obtain final inspection for work approved under pa#200905067845. all work is complete.",
   "source": "sf-building-permits"
  },
  {
   "number": "M292747",
   "type": "otc alterations permit",
   "status": "issued",
   "filed": "2011-12-14",
   "status_date": "2011-12-14",
   "revised_cost": 1,
   "description": "street space permit.",
   "source": "sf-building-permits"
  },
  {
   "number": "M260606",
   "type": "otc alterations permit",
   "status": "issued",
   "filed": "2011-05-11",
   "status_date": "2011-05-11",
   "revised_cost": 1,
   "description": "street space",
   "source": "sf-building-permits"
  },
  {
   "number": "M229386",
   "type": "otc alterations permit",
   "status": "issued",
   "filed": "2010-11-16",
   "status_date": "2010-11-16",
   "revised_cost": 1,
   "description": "street space",
   "source": "sf-building-permits"
  },
  {
   "number": "201007025866",
   "type": "additions alterations or repairs",
   "status": "complete",
   "filed": "2010-07-02",
   "status_date": "2012-10-11",
   "estimated_cost": 50000,
   "revised_cost": 50000,
   "description": "enclose existing exterior stair with glass, alter steps.",
   "source": "sf-building-permits"
  },
  {
   "number": "201005263228",
   "type": "otc alterations permit",
   "status": "expired",
   "filed": "2010-05-26",
   "status_date": "2012-10-11",
   "estimated_cost": 10000,
   "revised_cost": 10000,
   "description": "construct landscape elements at rear yard retaining walls, concrete steps on grade, slabs, stone walls and finis over slabs. work is to replace existing retaining walls, approx. 4.5 ft above grade",
   "source": "sf-building-permits"
  },
  {
   "number": "M201526",
   "type": "otc alterations permit",
   "status": "issued",
   "filed": "2010-05-11",
   "status_date": "2010-05-11",
   "revised_cost": 1,
   "description": "street space",
   "source": "sf-building-permits"
  },
  {
   "number": "201003087766",
   "type": "otc alterations permit",
   "status": "complete",
   "filed": "2010-03-08",
   "status_date": "2010-08-10",
   "estimated_cost": 1,
   "revised_cost": 1,
   "description": "revision to pa# 2009-0826-5623-kitchen trusses & balcony supports. reframe (e) roof at kitchen in kind",
   "source": "sf-building-permits"
  },
  {
   "number": "M184070",
   "type": "otc alterations permit",
   "status": "issued",
   "filed": "2009-11-12",
   "status_date": "2009-11-12",
   "revised_cost": 1,
   "description": "street space permit",
   "source": "sf-building-permits"
  },
  {
   "number": "M182746",
   "type": "otc alterations permit",
   "status": "issued",
   "filed": "2009-10-23",
   "status_date": "2009-10-23",
   "revised_cost": 1,
   "description": "street space only",
   "source": "sf-building-permits"
  },
  {
   "number": "200908265623",
   "type": "additions alterations or repairs",
   "status": "complete",
   "filed": "2009-08-26",
   "status_date": "2012-10-11",
   "estimated_cost": 400000,
   "revised_cost": 400000,
   "description": "new skylight, new roof at sunroom, new roof terrace, new windows on pl, reconfigure rear stairs, new balcony. interior remodel incl. kitchen,library, new master full bathroom.",
   "source": "sf-building-permits"
  },
  {
   "number": "200908054192",
   "type": "otc alterations permit",
   "status": "complete",
   "filed": "2009-08-05",
   "status_date": "2011-05-11",
   "estimated_cost": 10000,
   "revised_cost": 10000,
   "description": "re-roofing",
   "source": "sf-building-permits"
  },
  {
   "number": "200905067834",
   "type": "otc alterations permit",
   "status": "complete",
   "filed": "2009-05-06",
   "status_date": "2009-12-15",
   "estimated_cost": 15000,
   "revised_cost": 15000,
   "description": "re-stucco & re-sheath exterior due to termite damage, reference correction notice/pa #2008-1215-8528",
   "source": "sf-building-permits"
  },
  {
   "number": "200905067845",
   "type": "otc alterations permit",
   "status": "expired",
   "filed": "2009-05-06",
   "status_date": "2012-10-11",
   "estimated_cost": 30000,
   "revised_cost": 50000,
   "description": "reconfigure interior partitions in basement & expand basement storage area. no exterior work. revision to appl#200902111866.",
   "source": "sf-building-permits"
  },
  {
   "number": "M159864",
   "type": "otc alterations permit",
   "status": "issued",
   "filed": "2009-04-09",
   "status_date": "2009-04-09",
   "revised_cost": 1,
   "description": "street space only.",
   "source": "sf-building-permits"
  },
  {
   "number": "200902111866",
   "type": "additions alterations or repairs",
   "status": "expired",
   "filed": "2009-02-11",
   "status_date": "2012-10-11",
   "estimated_cost": 200000,
   "revised_cost": 200000,
   "description": "interior remodel of basement, new foundtations, slab, n mech room, reconfigure laundry area. increased storage area",
   "source": "sf-building-permits"
  },
  {
   "number": "200812158528",
   "type": "otc alterations permit",
   "status": "complete",
   "filed": "2008-12-15",
   "status_date": "2009-12-15",
   "estimated_cost": 38000,
   "revised_cost": 40000,
   "description": "interior remodel of detached garage, reinforce existing concrete wall and replace (e) roof framing, replace (e) 3 skylights with same. no exterior work. this permit does",
   "source": "sf-building-permits"
  },
  {
   "number": "M144606",
   "type": "otc alterations permit",
   "status": "issued",
   "filed": "2008-12-05",
   "status_date": "2008-12-05",
   "revised_cost": 1,
   "description": "sidewalk permit. ref 200810204609.",
   "source": "sf-building-permits"
  },
  {
   "number": "200810204609",
   "type": "otc alterations permit",
   "status": "complete",
   "filed": "2008-10-20",
   "status_date": "2009-12-15",
   "estimated_cost": 30000,
   "revised_cost": 30000,
   "description": "front bldg - remodel of detached garage/studio, bathroom remodel, replace (e) garage door, new roof repair, dry rot & termite damage",
   "source": "sf-building-permits"
  },
  {
   "number": "200809091110",
   "type": "otc alterations permit",
   "status": "complete",
   "filed": "2008-09-09",
   "status_date": "2008-10-24",
   "estimated_cost": 5000,
   "revised_cost": 5000,
   "description": "exploratory demolition of kitchen/family area part of floor/wall. in basement for dryrot repair. at master bath to verify routing of vents and drains. strips of walls and opening in floors to gain access and survey (e) condition.",
   "source": "sf-building-permits"
  },
  {
   "number": "M60949",
   "type": "otc alterations permit",
   "status": "issued",
   "filed": "2007-03-19",
   "status_date": "2007-03-19",
   "revised_cost": 0,
   "description": "street space & sidewalk permit only.",
   "source": "sf-building-permits"
  },
  {
   "number": "M25475",
   "type": "otc alterations permit",
   "status": "issued",
   "filed": "2003-11-05",
   "status_date": "2003-11-05",
   "revised_cost": 0,
   "description": "street space & sidewalk repair",
   "source": "sf-building-permits"
  },
  {
   "number": "200205106321",
   "type": "otc alterations permit",
   "status": "expired",
   "filed": "2002-05-10",
   "status_date": "2002-09-10",
   "estimated_cost": 1,
   "revised_cost": 1,
   "description": "to renew app#2001/06/04/0594 for final inspection.",
   "source": "sf-building-permits"
  },
  {
   "number": "200201227454",
   "type": "otc alterations permit",
   "status": "complete",
   "filed": "2002-01-22",
   "status_date": "2002-03-12",
   "estimated_cost": 1,
   "revised_cost": 1,
   "description": "renew app 9823994-9812523s-for final",
   "source": "sf-building-permits"
  },
  {
   "number": "200110171083",
   "type": "otc alterations permit",
   "status": "expired",
   "filed": "2001-10-17",
   "status_date": "2002-05-07",
   "estimated_cost": 1,
   "revised_cost": 1,
   "description": "revision of 200106040594 showing upgrade of ex lavatory and shower replace floor,walls etc. dryrotte",
   "source": "sf-building-permits"
  },
  {
   "number": "200106040594",
   "type": "additions alterations or repairs",
   "status": "expired",
   "filed": "2001-06-04",
   "status_date": "2002-03-18",
   "estimated_cost": 7000,
   "revised_cost": 12000,
   "description": "enlarge basement storage area by excavating, remove 2 supporting beams & replace w/ new beams",
   "source": "sf-building-permits"
  },
  {
   "number": "9909583",
   "type": "otc alterations permit",
   "status": "complete",
   "filed": "1999-05-14",
   "status_date": "1999-06-04",
   "estimated_cost": 3000,
   "description": "change kitchen cabinets & counter-abate complaint",
   "source": "sf-building-permits"
  },
  {
   "number": "9823994",
   "type": "otc alterations permit",
   "status": "expired",
   "filed": "1998-11-20",
   "status_date": "2002-03-12",
   "estimated_cost": 10000,
   "description": "remodel bath",
   "source": "sf-building-permits"
  },
  {
   "number": "9812523S",
   "type": "additions alterations or repairs",
   "status": "expired",
   "filed": "1998-07-02",
   "status_date": "2002-03-12",
   "estimated_cost": 25000,
   "description": "upgrade the structure & finishes of an (e)deck w/in footprin",
   "source": "sf-building-permits"
  },
  {
   "number": "8903333",
   "type": "additions alterations or repairs",
   "status": "expired",
   "filed": "1989-03-01",
   "status_date": "1990-03-01",
   "estimated_cost": 6000,
   "description": "remodel bathroom",
   "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=3690",
   "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=3605022&$order=closed_roll_year%20DESC&$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=3605&lot=022",
   "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=3605022",
   "retrieved": "2026-07-28"
  },
  {
   "id": "digitalsf-54803",
   "name": "3690 21st Street, between 1946 and 1951. San Francisco Office of Assessor-Recorder Photographs (SFP 23), San Francisco History Center, San Francisco Public Library.",
   "query": "https://digitalsf.org/record/54803",
   "label": "Assessor-Recorder Photographs (SFP 23), San Francisco Public Library",
   "retrieved": "2026-08-15"
  },
  {
   "id": "digitalsf-8685",
   "name": "3690 21st Street, 1988. Robert Durden Color Slide Collection (SFP 42), San Francisco History Center, San Francisco Public Library.",
   "query": "https://digitalsf.org/record/8685",
   "label": "Robert Durden Color Slide Collection (SFP 42), San Francisco Public Library",
   "retrieved": "2026-09-02"
  }
 ],
 "historical_record": [
  {
   "date": "1988-03-19",
   "kind": "photograph",
   "description": "Robert Durden photographed the property, showing Mayor Rolph's cottage.",
   "source": "digitalsf-8685"
  },
  {
   "date": "between 1946 and 1951",
   "kind": "photograph",
   "description": "The Office of the Assessor-Recorder photographed the property for tax assessment.",
   "source": "digitalsf-54803"
  }
 ]
}