{
  "address": "309–315 Potrero Avenue, San Francisco, CA 94103",
  "path": "/san-francisco/mission/potrero-avenue/309/",
  "apn": "3961020",
  "block": "3961",
  "lot": "020",
  "eas_baseid": "484606",
  "coordinates": {
    "lat": 37.765552,
    "lng": -122.407341
  },
  "address_range": "309–315",
  "street_numbers_on_parcel": [
    "309",
    "311",
    "313",
    "315"
  ],
  "parcel": {
    "year_built": 1906,
    "units": 5,
    "stories": 3,
    "rooms": 17,
    "bathrooms": 7,
    "bedrooms": 8,
    "lot_area_sqft": 4242,
    "building_area_sqft": 7626,
    "basement_area_sqft": 1981,
    "use": "Multi-Family Residential",
    "property_class": "Flat & Store 5 to 14 units",
    "construction_type_code": "D",
    "zoning": "M1",
    "supervisor_district": 10,
    "assessor_neighborhood": "Potrero Hill",
    "analysis_neighborhood": "Mission",
    "property_location_raw": "0317 0311 POTRERO             AV0000"
  },
  "assessment": {
    "roll_year": 2025,
    "assessed_land_value": 2775125,
    "assessed_improvement_value": 1189338,
    "last_sale_date": "2020-02-14"
  },
  "historic_status": {
    "ceqa_status_code": "C",
    "ceqa_status_code_article_10_11": "C",
    "ceqa_status_label": "Not a historical resource",
    "reason": "Historic Survey Result",
    "yearbuilt": "1906",
    "in_article_10_11_historic_district": false,
    "source": "sf-planning"
  },
  "permits": [
    {
      "number": "202606163347",
      "type": "sign - erect",
      "status": "filed",
      "filed": "2026-06-16",
      "status_date": "2026-06-16",
      "estimated_cost": 3000,
      "description": "legalize existing electrical wall sign to abate planning violation 2026000754 enf under amnesty program. your new barber",
      "source": "sf-building-permits"
    },
    {
      "number": "M1068887",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2019-04-19",
      "status_date": "2019-04-19",
      "revised_cost": 0,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201402198870",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2014-02-19",
      "status_date": "2014-03-24",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "revision to pa# 201312043319 as a correcton permit to the front cover sheet which is in error for the (e) residential units from 3 units to 2 units & 3 (e) and proposed commercial/office use at g/f & b/f.",
      "source": "sf-building-permits"
    },
    {
      "number": "201312043319",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2013-12-04",
      "status_date": "2014-03-24",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "to reflect existing as built conditions for final documentation, ref pa #2013.0618.9891",
      "source": "sf-building-permits"
    },
    {
      "number": "M402867",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2013-06-20",
      "status_date": "2013-06-20",
      "revised_cost": 481,
      "description": "new addresses at art studio at block 3961, lot 002 as; 309 potrero ave & 313a potrero ave.",
      "source": "sf-building-permits"
    },
    {
      "number": "201306189891",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2013-06-18",
      "status_date": "2013-07-25",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "revision to 201205221040. previously approved restaurant to remain retail art gallerty. (315 separate under permit)",
      "source": "sf-building-permits"
    },
    {
      "number": "201306189898",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2013-06-18",
      "status_date": "2013-07-31",
      "estimated_cost": 1,
      "revised_cost": 1,
      "description": "revision to bpa# 201205221040. previously approved restaurant to remain to retail art gallery. (311 potrero ave under separate permit)",
      "source": "sf-building-permits"
    },
    {
      "number": "M383547",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2013-04-08",
      "status_date": "2013-04-08",
      "revised_cost": 1,
      "description": "street space",
      "source": "sf-building-permits"
    },
    {
      "number": "201303051524",
      "type": "otc alterations permit",
      "status": "cancelled",
      "filed": "2013-03-05",
      "status_date": "2013-05-02",
      "estimated_cost": 80000,
      "revised_cost": 80000,
      "description": "revision to pa#2012-10-24-2768. modify (e) stair at north wall w/ a 36\" complying stair & a (n) stair at rear w/ stair coming off 3rd level to 2nd level deck, add glass block at basement level & modify toilet at basement level.",
      "source": "sf-building-permits"
    },
    {
      "number": "M364567",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2013-01-03",
      "status_date": "2013-01-03",
      "revised_cost": 1,
      "description": "street space permit",
      "source": "sf-building-permits"
    },
    {
      "number": "201210242768",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-10-24",
      "status_date": "2013-07-25",
      "estimated_cost": 15000,
      "revised_cost": 15000,
      "description": "revision to pa #201208026382 to rebuild perimeter walls at basement level and 1st floor. and roof deck at 2nd story at the rear of bldg per bldg inspector as well @ 1st flr framing @ rear",
      "source": "sf-building-permits"
    },
    {
      "number": "201208217950",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-08-21",
      "status_date": "2013-07-25",
      "estimated_cost": 20000,
      "revised_cost": 35000,
      "description": "new light court, new stair, rebuild (e) stair in kind, new toilet @ basement level, remodel area for residential levels @ 2nd floor & third floor , 2-new bathrooms @ residential levels. remodel commercial levels. (reference pa #2012.0802.6382 & 2012.0522.1040)",
      "source": "sf-building-permits"
    },
    {
      "number": "M342407",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2012-08-13",
      "status_date": "2012-08-13",
      "revised_cost": 1,
      "description": "street space permit",
      "source": "sf-building-permits"
    },
    {
      "number": "201208026382",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-08-02",
      "status_date": "2013-07-25",
      "estimated_cost": 80000,
      "revised_cost": 155000,
      "description": "upgrade structural framing. replace stair to basemnt with new complying stair. new stair to basement. remodel (e) approved permit- reference to bpa#201205221040.per plan.",
      "source": "sf-building-permits"
    },
    {
      "number": "M323467",
      "type": "otc alterations permit",
      "status": "issued",
      "filed": "2012-05-23",
      "status_date": "2012-05-23",
      "revised_cost": 481,
      "description": "add address at block 3961, lot 020 as 313 potrero ave. (residential) and 315 potrero ave. as ti commercial per pa #201205221040.",
      "source": "sf-building-permits"
    },
    {
      "number": "201205221040",
      "type": "otc alterations permit",
      "status": "complete",
      "filed": "2012-05-22",
      "status_date": "2013-07-25",
      "estimated_cost": 80000,
      "revised_cost": 80000,
      "description": "extg retail art gallery to be converted into retail coffee(2 spaces) at ground floor floor. subdivide space into 2 coffee spaces. new partition toilets and counter. note mep under separate permit.",
      "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=POTRERO&street_type=AVE&address_number=309",
      "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=3961020&$order=closed_roll_year%20DESC&$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=3961&lot=020",
      "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=3961020",
      "retrieved": "2026-07-31"
    }
  ]
}