{
  "schemaVersion": 1,
  "kind": "city-market-research-evidence",
  "publication": {
    "id": "city-ab-81d2f099-9dc1-424b-a9b9-b0b7a70592e5-8ea99aa9b057",
    "batch": "edition-2026-09-07",
    "publicPath": "/markets/ab/ab-calgary-green-line-route-certainty-apartment-market-2026-09-07",
    "sourceArticleSha256": "8ea99aa9b05765cbfa0cfc8b68efaa2d74a74b280cc1c5ffd103aff01ff5bc5d",
    "publishedAtUtc": "2026-09-08T01:38:04.954934Z",
    "editorialLanguageCheck": "passed"
  },
  "cityId": "81d2f099-9dc1-424b-a9b9-b0b7a70592e5",
  "city": "Calgary",
  "province": "AB",
  "asOfUtc": "2026-09-07T16:00:00.1724277+00:00",
  "thesis": "A railway under construction does not give every nearby property the same advantage. Calgary\u2019s retained project records show why the next downtown route decision could matter more to some owners than the broader Green Line construction milestone.",
  "sources": [
    {
      "key": "rail",
      "url": "https://www.calgary.ca/green-line.html",
      "publisher": "City of Calgary",
      "scopes": [
        "local"
      ],
      "dateNote": "Retained construction status checked against the current City page on September 7, 2026. The advertised 2031 opening concerns the southeast project.",
      "observationPeriod": "Status at September 7, 2026",
      "recordIds": [
        "7a89f91c-9bea-4c40-8722-32d31fb207e9"
      ],
      "publicationDate": null,
      "checkedAtUtc": "2026-09-07T17:37:56.211722+00:00"
    },
    {
      "key": "route",
      "url": "https://www.calgary.ca/green-line/downtown-segment.html",
      "publisher": "City of Calgary",
      "scopes": [
        "local",
        "provincial"
      ],
      "dateNote": "September 1, 2026 update. September 8 committee consideration had not occurred at this edition cutoff.",
      "observationPeriod": "September 2026",
      "recordIds": [],
      "publicationDate": "2026-09-01",
      "checkedAtUtc": "2026-09-07T17:37:56.211722+00:00"
    },
    {
      "key": "creb",
      "url": "https://www.creb.com/News/Media_Releases/2026/September/August_2026_Stats/",
      "publisher": "Calgary Real Estate Board",
      "scopes": [
        "local",
        "regional"
      ],
      "dateNote": "September 1, 2026 release. Apartment statistics cover Calgary, not individual station areas.",
      "observationPeriod": "August 2026",
      "recordIds": [],
      "publicationDate": "2026-09-01",
      "checkedAtUtc": "2026-09-07T17:37:56.211722+00:00"
    },
    {
      "key": "alberta",
      "url": "https://www.alberta.ca/housing-market-notes",
      "publisher": "Alberta Treasury Board and Finance",
      "scopes": [
        "provincial"
      ],
      "dateNote": "Retained first-quarter resale statistics, seasonally adjusted.",
      "observationPeriod": "Q1 2026",
      "recordIds": [
        "d5069697-4330-454d-9a40-6ecd30e3aee3"
      ],
      "publicationDate": null,
      "checkedAtUtc": "2026-09-07T17:37:56.211722+00:00"
    },
    {
      "key": "boc",
      "url": "https://www.bankofcanada.ca/2026/09/fad-press-release-2026-09-02/",
      "publisher": "Bank of Canada",
      "scopes": [
        "national"
      ],
      "dateNote": "September 2, 2026 decision; overnight policy rate is not a quoted mortgage rate.",
      "observationPeriod": "September 2026",
      "recordIds": [],
      "publicationDate": "2026-09-02",
      "checkedAtUtc": "2026-09-07T17:37:56.211722+00:00"
    }
  ],
  "claims": [
    {
      "id": "s0p0",
      "section": 0,
      "paragraph": 0,
      "kind": "interpretation",
      "sources": [
        "rail"
      ],
      "explanation": "Construction status and advertised year retained; neither guarantees a particular property premium."
    },
    {
      "id": "s0p1",
      "section": 0,
      "paragraph": 1,
      "kind": "interpretation",
      "sources": [
        "route"
      ],
      "explanation": "Current outcome check at the September 7 cutoff. No implication that the following day meeting has occurred or that a route has been selected."
    },
    {
      "id": "s1p0",
      "section": 1,
      "paragraph": 0,
      "kind": "interpretation",
      "sources": [
        "creb"
      ],
      "explanation": "Benchmark index distinguished from average, citywide property-type evidence not mislabelled station catchment data."
    },
    {
      "id": "s1p1",
      "section": 1,
      "paragraph": 1,
      "kind": "interpretation",
      "sources": [
        "alberta",
        "boc",
        "rail",
        "creb"
      ],
      "explanation": "Original cross-source finding. No claim that the railway caused the apartment decline or that policy rates determine a specific mortgage quote."
    },
    {
      "id": "s2p0",
      "section": 2,
      "paragraph": 0,
      "kind": "forecast",
      "sources": [
        "rail",
        "route",
        "creb",
        "boc"
      ],
      "explanation": "Conditional forecast about information and relative negotiation, not a quantified price premium."
    },
    {
      "id": "s2p1",
      "section": 2,
      "paragraph": 1,
      "kind": "interpretation",
      "sources": [
        "route",
        "creb"
      ],
      "explanation": "Falsifiers and required outcome data specified; no promise that a selected route increases value."
    }
  ],
  "forecasts": [
    {
      "claimId": "s2p0",
      "horizon": "Through 2027",
      "assumptions": [
        "Apartment buyers retain meaningful rental and resale alternatives",
        "Downtown design uncertainty remains material to purchase decisions"
      ],
      "upside": "A confirmed accessible station and stronger apartment absorption improve a specific property comparison.",
      "downside": "An assumed station connection is changed or deferred while apartment competition remains high.",
      "changeSignals": [
        "September committee and subsequent Council decisions",
        "Final station access designs",
        "Matched property sales and rental performance"
      ],
      "confidence": "low",
      "confidenceReason": "Project-stage differences are documented, but no property-level causal premium has been measured."
    }
  ],
  "datasetFindings": [
    {
      "reportFile": "analysis.json",
      "reportSha256": "2a06b749ed33fe925be291dbf602623183a5b44c245a0aef18eb6ed390cece66",
      "claimIds": [
        "s1p1"
      ],
      "archiveContribution": "Joins retained municipal project-stage evidence with retained provincial demand context, then checks both against September route and August market releases. It is a cross-source finding, not a claim to have measured a historical rail premium."
    }
  ],
  "causalChains": [
    {
      "claimId": "s2p0",
      "sources": [
        "rail",
        "route",
        "creb",
        "alberta",
        "boc"
      ],
      "mechanism": "Provincial funding conditions shaped downtown route alternatives; unsettled access means the future amenity cannot be treated uniformly. Present apartment and rental competition affects how much uncertainty a buyer needs to accept while financing remains relevant.",
      "localExposure": "Calgary apartment buyers comparing homes near confirmed southeast stations and possible downtown alignments.",
      "timeHorizon": "September 2026 through 2027",
      "counterEvidence": "A swift route decision or stronger apartment absorption could reduce this distinction. Existing employment access, building quality and current transport can dominate any rail effect.",
      "forecastImplication": "Watch location-specific route certainty and matched absorption rather than assuming a common rail-driven price increase."
    }
  ],
  "review": {
    "factual": true,
    "editorial": true,
    "reviewer": "GPT-6 Astra, Codex Atlantic and North research agent",
    "reviewedAtUtc": "2026-09-07T17:37:56.211722+00:00",
    "articleSha256": "8ea99aa9b05765cbfa0cfc8b68efaa2d74a74b280cc1c5ffd103aff01ff5bc5d"
  },
  "insightReview": {
    "articleSha256": "8ea99aa9b05765cbfa0cfc8b68efaa2d74a74b280cc1c5ffd103aff01ff5bc5d",
    "reviewer": "GPT-6 Astra, Codex Atlantic and North research agent",
    "reviewedAtUtc": "2026-09-07T17:37:56.211722+00:00",
    "findings": [
      {
        "observationIds": [
          "phasing",
          "provincial"
        ],
        "ordinaryInterpretation": "Construction of a funded rail line should provide a common near-term boost to homes along its advertised route.",
        "additionalFinding": "The retained record shows that southeast construction and downtown alignment certainty are different exposures. Later route alternatives and apartment-market weakness make a future-access premium more dependent on location certainty and present rental competition.",
        "archiveContribution": "Joins retained municipal project-stage evidence with retained provincial demand context, then checks both against September route and August market releases. It is a cross-source finding, not a claim to have measured a historical rail premium.",
        "localConsequence": "A Calgary condo comparison should distinguish a confirmed station catchment from a possible alignment instead of treating Green Line proximity as one uniform amenity.",
        "counterEvidence": "A swift route decision or stronger apartment absorption could reduce this distinction. Existing employment access, building quality and current transport can dominate any rail effect.",
        "missingLinks": [
          "Matched sales and rental outcomes near confirmed and alternative station locations",
          "Final downtown route and station design",
          "Property-level condo costs and pedestrian access"
        ]
      }
    ],
    "removedOrDemoted": [
      {
        "claim": "The Green Line will lift all nearby values.",
        "reason": "No matched-property causal evidence and downtown route is still under consideration."
      },
      {
        "claim": "The condo decline was caused by route uncertainty.",
        "reason": "No such causal evidence; CREB instead reports rental competition."
      }
    ]
  },
  "definitionReview": {
    "articleSha256": "8ea99aa9b05765cbfa0cfc8b68efaa2d74a74b280cc1c5ffd103aff01ff5bc5d",
    "reviewer": "GPT-6 Astra, Codex Atlantic and North research agent",
    "reviewedAtUtc": "2026-09-07T17:37:56.211722+00:00",
    "checks": [
      {
        "locations": [
          "title",
          "description",
          "lead",
          "s0p0",
          "s0p1",
          "s1p1",
          "s2p0",
          "s2p1"
        ],
        "sources": [
          "rail",
          "route"
        ],
        "locator": "Retained Where it Goes paragraph; current September 1 update, funding FAQ and construction FAQ",
        "outcome": "qualified",
        "reason": "SE advertised opening 2031 does not settle downtown design. September 8 remains future at the fixed cutoff. Provincial funding constraints are explained, but no guarantee of premium or observed local effect is claimed."
      },
      {
        "claimIds": [
          "s1p0",
          "s1p1",
          "s2p0"
        ],
        "sources": [
          "creb",
          "alberta",
          "boc"
        ],
        "locator": "CREB apartment and detached sections; Q1 Alberta resale table; September 2 Bank decision",
        "outcome": "qualified",
        "reason": "Citywide benchmark and segment inventory are distinct from station-level outcomes. Province and national context are not substituted for local price measurements."
      }
    ]
  },
  "proseReview": {
    "articleSha256": "8ea99aa9b05765cbfa0cfc8b68efaa2d74a74b280cc1c5ffd103aff01ff5bc5d",
    "reviewer": "GPT-6 Astra, Codex Atlantic and North research agent",
    "reviewedAtUtc": "2026-09-07T17:37:56.211722+00:00",
    "notes": "Read all six paragraphs continuously against the current route update and retained project record. The narrow argument concerns differences in route certainty during apartment weakness. Future September 8 consideration, advertised 2031 opening and 2027 forecast are distinct. No first person or em dash; no invented station premium."
  },
  "gaps": [
    "Matched sales and rental outcomes near confirmed and alternative station locations",
    "Final downtown route and station design",
    "Property-level condo costs and pedestrian access"
  ],
  "retrievalCoverage": {
    "cityDiscoveryRows": 500,
    "cityDiscoveryHasMore": true,
    "municipalDomainRows": 203,
    "downtownSegmentDiscoveryRows": 0,
    "qdrantBodyDiscoveryCompleted": true,
    "exhaustiveArchive": false
  }
}