DMTO methodology — IMMO BTC, 21 September 2026

IGEDD / DGFiP workbooks, Données sheet, column B: Produit des droits, Régime de droit commun. The series measures tax receipts. The dataset’s general title, assiette des droits, does not change the selected field’s unit. The reduced regime and mortgage registrations are excluded. May, June and July are summed for each year; change = 2026 total / 2025 total − 1. Results are checked against the workbook’s rolling three-month change in column H. Months refer to DGFiP registration. Tax rates, reliefs and property mix are not normalised. This is a descriptive financial indicator, distinct from a price index or sale count.

https://www.cgedd.fr/valeur-immobilier-departement/immobilier-alpes-maritimes-06.xls
SHA-256: 82d2cfb7a31f9076dd7550941154284dbc99205b92fdd50534de892e9927f615
{
  "values": {
    "2025-05": 39294791.31,
    "2025-06": 41467820.46,
    "2025-07": 57902987.89,
    "2026-05": 38026718.730000004,
    "2026-06": 46581364.51,
    "2026-07": 57487100.77
  },
  "totals": {
    "2025": 138665599.66,
    "2026": 142095184.01
  },
  "change_fraction": 0.024732769759833184
}

https://www.cgedd.fr/valeur-immobilier-departement/immobilier-var-83.xls
SHA-256: 98629f10604c032c77b03f41ad47ec13091faf6e66ba0a06093276edaee5eb23
{
  "values": {
    "2025-05": 43020705.97,
    "2025-06": 37341356.0,
    "2025-07": 50097056.02,
    "2026-05": 32752068.0,
    "2026-06": 40858361.3,
    "2026-07": 48539802.0
  },
  "totals": {
    "2025": 130459117.99000001,
    "2026": 122150231.3
  },
  "change_fraction": -0.06368958197798724
}