{
  "name": "Avena Spanish Coastal New-Build Market Observations",
  "version": "v2026-10-29",
  "schema_version": 2,
  "generated_at": "2026-10-29T11:28:41.933Z",
  "license": "CC-BY-4.0",
  "attribution": "Avena Terminal (avenaterminal.com)",
  "zenodo_snapshot": {
    "doi": "10.5281/zenodo.19520064",
    "version": "1.0.0",
    "published": "2026-04-11",
    "listings": 500,
    "note": "Earlier one-off snapshot. This dataset version is not deposited on Zenodo."
  },
  "publisher": {
    "name": "Avena Terminal",
    "url": "https://avenaterminal.com"
  },
  "observation_ledger": {
    "first_date": "2026-08-05",
    "latest_date": "2026-10-29",
    "observation_days": 79,
    "refs_observed": 2365,
    "moves_recorded": 796,
    "delistings_recorded": 342,
    "relistings_recorded": 52,
    "delistings_still_listed": 49,
    "delistings_currently_absent": 293
  },
  "cross_section": {
    "live_listings": 2061,
    "towns_published": 68,
    "town_k_threshold": 5
  },
  "files": {
    "towns.csv": "Per-town aggregates of the live book (k>=5): median price, price/m2 quartiles, size, villa share, beach distance",
    "movement-ledger.csv": "Per observed day: listings observed, price increases/reductions, median move size, delistings, relistings",
    "moves.csv": "Every individual price move observed (consecutive observations of the same unit)",
    "tombstones.csv": "Units observed leaving the market: last observed price and date, plus relisted_on and still_listed where the unit was later observed listed again"
  },
  "honesty": [
    "Prices are ASKING prices observed in listings. Spanish transaction prices are not public at unit level; nothing here is a registered sale price.",
    "The observation ledger begins 2026-08-05. Earlier internal tables exist but repeated a frozen snapshot rather than recording observations, and are excluded on principle.",
    "A delisting means the unit left the observed feed — strong evidence of absorption, not a notarised sale.",
    "52 of the 342 delisted units were later observed listed again (relisted_on). Of those, 49 are on the market as of the latest observation day (still_listed=true) and are NOT evidence of absorption; the rest returned and left again. 293 of the 342 tombstoned units are absent today. Tombstones are never deleted — a withdrawal followed by a return is itself an observation, and one no public source records.",
    "Cross-sectional aggregates cover only towns with at least 5 live listings.",
    "No listing descriptions, images, URLs, or project/developer names are redistributed — only numeric observations and derived statistics.",
    "AVM accuracy, measured nightly against the whole book, is published at https://avenaterminal.com/model-stats.json (in-sample, caveats included)."
  ]
}