{
  "schemaVersion": "1",
  "ruleVersion": "explicit-chicago-from-to-v1",
  "startDate": "2026-08-08",
  "endDate": "2026-09-07",
  "collectedAt": "2026-09-07T20:28:09.073466+00:00",
  "sourceUpdatedAt": "2026-09-07T12:12:47+00:00",
  "sourceRecordCount": 2819,
  "matchedPermitCount": 4,
  "sourceQuery": "https://data.cityofchicago.org/resource/ydr8-5enu.json?%24select=id%2Cpermit_%2Cpermit_status%2Cpermit_milestone%2Cpermit_type%2Cissue_date%2Cstreet_number%2Cstreet_direction%2Cstreet_name%2Cwork_description&%24where=issue_date+%3E%3D+%272026-08-08T00%3A00%3A00%27+AND+issue_date+%3C+%272026-09-08T00%3A00%3A00%27&%24order=id&%24limit=5001",
  "attribution": "City of Chicago, Building Permits dataset (ydr8-5enu)",
  "coverage": "Complete City of Chicago Building Permits query response for the issue-date window. Residential and commercial permits may appear; only explicit change (of|in) (use|occupancy) from ... (to|into) ... wording is selected.",
  "interpretation": "Published permit descriptions are not proof of completed work, a new tenant, business opening, current occupancy, or an opening date.",
  "records": [
    {
      "recordId": "3444879",
      "permitNumber": "101081518",
      "location": "1459 N TALMAN AVE",
      "sourceIssueDate": "2026-08-21",
      "sourceStatus": "ACTIVE",
      "sourceMilestone": "INSPECTIONS (CERTIFICATE OF OCCUPANCY REQUIRED)",
      "sourcePermitType": "PERMIT - RENOVATION/ALTERATION",
      "describedTransitions": [
        {
          "priorUse": "RELIGIOUS ASSEMBLY (A-3)",
          "proposedUse": "MULTI FAMILY RESIDENTIAL (R2)",
          "evidenceQuote": "CHANGE OF OCCUPANCY FROM RELIGIOUS ASSEMBLY (A-3) TO MULTI FAMILY RESIDENTIAL (R2)"
        }
      ],
      "sourceDescription": "SPR 2019 CBRC: INTERIOR ALTERATIONS, REAR ADDITION AND CHANGE OF OCCUPANCY FROM RELIGIOUS ASSEMBLY (A-3) TO MULTI FAMILY RESIDENTIAL (R2) IN AN EXISTING 2-STORY BUILDING. ADDITION OF 8 DWELLING UNITS IN FULLY SPRINKLED 3 STORY BUILDING AND REAR ADDITION FOR ELECTRICAL AND WATER ROOM. EXTERIOR TRASH ENCLOSURE, EXTERIOR FENCING, 4  PARKING SPACES AND 8 BIKE PARKING SPACES IN TRANSIT SERVED LOCATION.(OCCUPANCY GROUP R-2; TYPE III-A CONSTRUCTION)**CERTIFIED CORRECTIONS SUBJECT TO FIELD INSPECTIONS & AUDIT **",
      "sourceUrl": "https://data.cityofchicago.org/resource/ydr8-5enu.json?id=3444879",
      "multipleTransitions": false,
      "openingDate": null,
      "historicalTransitionObserved": false
    },
    {
      "recordId": "3456297",
      "permitNumber": "101086615",
      "location": "1644 N DAMEN AVE",
      "sourceIssueDate": "2026-08-19",
      "sourceStatus": "ACTIVE",
      "sourceMilestone": "INSPECTIONS (CERTIFICATE OF OCCUPANCY REQUIRED)",
      "sourcePermitType": "PERMIT - RENOVATION/ALTERATION",
      "describedTransitions": [
        {
          "priorUse": "B-BUSINESS",
          "proposedUse": "M-MERCANTILE",
          "evidenceQuote": "CHANGE IN USE FROM B-BUSINESS TO M-MERCANTILE"
        }
      ],
      "sourceDescription": "SELF-CERT 2019 CBRC: ALTERATIONS TO EXISTING TENANT SPACE WITHIN EXISTING 2-STORY SINGLE-TENANT BUILDING. ALTERATIONS INCLUDE LOWERING OF FIRST FLOOR, CONVERSION OF EXISTING SECOND FLOOR TO EQUIPMENT PLATFORM, RESULTING IN A 1-STORY BUILDING, A 1-STORY ADDITION AT THE FRONT OF THE BUILDING, AN EQUIPMENT/MECHNICAL PLATOFORM AND CHANGE IN USE FROM B-BUSINESS TO M-MERCANTILE. WORK INCLUDES INTERIOR PARTITION WALLS, ELECTRICAL, PLUMBING, MECHANICAL, AND STRUCTURAL. ALL SIGNAGE IS UNDER SEPARATE PERMIT. EXISTING CONSTRUCTION TYPE: TYPE V-B - OCCUPANCY, NEW CONSTRUCTION TYPE AT AREA OF ADDITION: II-B IN BUILDING: CLASS M (MERCANTILE)",
      "sourceUrl": "https://data.cityofchicago.org/resource/ydr8-5enu.json?id=3456297",
      "multipleTransitions": false,
      "openingDate": null,
      "historicalTransitionObserved": false
    },
    {
      "recordId": "3434874",
      "permitNumber": "101077612",
      "location": "4301 S DR MARTIN L KING JR DR",
      "sourceIssueDate": "2026-08-18",
      "sourceStatus": "ACTIVE",
      "sourceMilestone": "INSPECTIONS (CERTIFICATE OF OCCUPANCY REQUIRED)",
      "sourcePermitType": "PERMIT - RENOVATION/ALTERATION",
      "describedTransitions": [
        {
          "priorUse": "B",
          "proposedUse": "E-2",
          "evidenceQuote": "CHANGE OF OCCUPANCY FROM B TO E-2"
        }
      ],
      "sourceDescription": "CONVERT FIRST FLOOR (ONLY) OF EXISTING TYPE IIIA CONSTRUCTION 2-STORY MASONRY OFFICE BUILDING TO NEW DAYCARE. NEW MECHANICAL, ELECTRICAL AND PLUMBING FOR FIRST FLOOR ONLY, 2 NEW INTERIOR OPENINGS IN MASONRY TO COMBINE ALL UNITS (CHANGE OF OCCUPANCY FROM B TO E-2) NEW PARKING LOT, DRIVEWAY, LANDSCAPE AND TRASH ENCLOSURE PER PLANS NO WORK TO SECOND FLOOR  **CERTIFIED PLANS CORRECTIONS: CONDITIONAL PERMIT SUBJECT TO FIELD INSPECTIONS **",
      "sourceUrl": "https://data.cityofchicago.org/resource/ydr8-5enu.json?id=3434874",
      "multipleTransitions": false,
      "openingDate": null,
      "historicalTransitionObserved": false
    },
    {
      "recordId": "3414136",
      "permitNumber": "101068742",
      "location": "10538 S EWING AVE",
      "sourceIssueDate": "2026-08-17",
      "sourceStatus": "ACTIVE",
      "sourceMilestone": "INSPECTIONS",
      "sourcePermitType": "PERMIT - RENOVATION/ALTERATION",
      "describedTransitions": [
        {
          "priorUse": "EXISTING RETAIL SPACE",
          "proposedUse": "NEW RESTAURANT SPACE",
          "evidenceQuote": "CHANGE OF USE AT GROUND LEVEL COMM. UNIT FROM EXISTING RETAIL SPACE INTO NEW RESTAURANT SPACE"
        }
      ],
      "sourceDescription": "SPR 2019 CBCC: INTERIOR ALTERATIONS AT AN EXISTING 2-STORY, MIXED-USE (1 DWELLING UNIT + 1 COMM. UNIT) MASONRY BUILDING TO UNDERGO A CHANGE OF USE AT GROUND LEVEL COMM. UNIT FROM EXISTING RETAIL SPACE INTO NEW RESTAURANT SPACE. WITH A NEW WALKWAY ON THE FIRST FLOOR ROOF. (CONST. TYPE: 3A; OCCUPANCY: B + R-23)**CERTIFIED CORRECTIONS SUBJECT TO FIELD INSPECTIONS & AUDIT **",
      "sourceUrl": "https://data.cityofchicago.org/resource/ydr8-5enu.json?id=3414136",
      "multipleTransitions": false,
      "openingDate": null,
      "historicalTransitionObserved": false
    }
  ],
  "summaries": {
    "summaryVersion": "1",
    "metricSemantics": {
      "plannedUseCounts": "Matching permits counted by each distinct exact extracted proposedUse text. A permit contributes once to a repeated label and once to each different label it contains.",
      "sourceStatusCounts": "Matching permits counted by exact published sourceStatus; null represents a missing or unavailable source status.",
      "locationCounts": "Matching permits counted by exact published location text; no neighborhood grouping or geocoding is applied."
    },
    "plannedUseCounts": [
      {
        "proposedUse": "E-2",
        "permitCount": 1
      },
      {
        "proposedUse": "M-MERCANTILE",
        "permitCount": 1
      },
      {
        "proposedUse": "MULTI FAMILY RESIDENTIAL (R2)",
        "permitCount": 1
      },
      {
        "proposedUse": "NEW RESTAURANT SPACE",
        "permitCount": 1
      }
    ],
    "sourceStatusCounts": [
      {
        "sourceStatus": "ACTIVE",
        "permitCount": 4
      }
    ],
    "locationCounts": [
      {
        "location": "10538 S EWING AVE",
        "permitCount": 1
      },
      {
        "location": "1459 N TALMAN AVE",
        "permitCount": 1
      },
      {
        "location": "1644 N DAMEN AVE",
        "permitCount": 1
      },
      {
        "location": "4301 S DR MARTIN L KING JR DR",
        "permitCount": 1
      }
    ]
  }
}