{"code": "89418", "name": "Tonnerre", "department": "89", "postcode": "89700", "population": 4261, "data_status": "complete", "prices": {"appartement": {"year": 2026, "sale_count": 11, "median_price_m2": 737}, "maison": {"year": 2026, "sale_count": 23, "median_price_m2": 1274}}, "prices_period": "janv.–juin 2026", "data_through": "2026-06-30", "price_series": [{"year": 2014, "period": "2014", "type": "Appartement", "median_price_m2": 1458, "sale_count": 10}, {"year": 2014, "period": "2014", "type": "Maison", "median_price_m2": 1108, "sale_count": 33}, {"year": 2015, "period": "2015", "type": "Appartement", "median_price_m2": 1000, "sale_count": 15}, {"year": 2015, "period": "2015", "type": "Maison", "median_price_m2": 1250, "sale_count": 24}, {"year": 2016, "period": "2016", "type": "Appartement", "median_price_m2": 1069, "sale_count": 23}, {"year": 2016, "period": "2016", "type": "Maison", "median_price_m2": 1050, "sale_count": 40}, {"year": 2017, "period": "2017", "type": "Appartement", "median_price_m2": 1019, "sale_count": 11}, {"year": 2017, "period": "2017", "type": "Maison", "median_price_m2": 952, "sale_count": 29}, {"year": 2018, "period": "2018", "type": "Appartement", "median_price_m2": 346, "sale_count": 13}, {"year": 2018, "period": "2018", "type": "Maison", "median_price_m2": 851, "sale_count": 38}, {"year": 2019, "period": "2019", "type": "Appartement", "median_price_m2": 1436, "sale_count": 50}, {"year": 2019, "period": "2019", "type": "Maison", "median_price_m2": 987, "sale_count": 41}, {"year": 2020, "period": "2020", "type": "Appartement", "median_price_m2": 774, "sale_count": 18}, {"year": 2020, "period": "2020", "type": "Maison", "median_price_m2": 929, "sale_count": 36}, {"year": 2021, "period": "2021", "type": "Appartement", "median_price_m2": 1442, "sale_count": 36}, {"year": 2021, "period": "2021", "type": "Maison", "median_price_m2": 1005, "sale_count": 86}, {"year": 2022, "period": "2022", "type": "Appartement", "median_price_m2": 1111, "sale_count": 69}, {"year": 2022, "period": "2022", "type": "Maison", "median_price_m2": 1061, "sale_count": 55}, {"year": 2023, "period": "2023", "type": "Appartement", "median_price_m2": 1321, "sale_count": 35}, {"year": 2023, "period": "2023", "type": "Maison", "median_price_m2": 1403, "sale_count": 48}, {"year": 2024, "period": "2024", "type": "Appartement", "median_price_m2": 1487, "sale_count": 14}, {"year": 2024, "period": "2024", "type": "Maison", "median_price_m2": 1120, "sale_count": 43}, {"year": 2025, "period": "2025", "type": "Appartement", "median_price_m2": 967, "sale_count": 13}, {"year": 2025, "period": "2025", "type": "Maison", "median_price_m2": 1075, "sale_count": 52}, {"year": 2026, "period": "janv.–juin 2026", "type": "Appartement", "median_price_m2": 737, "sale_count": 11}, {"year": 2026, "period": "janv.–juin 2026", "type": "Maison", "median_price_m2": 1274, "sale_count": 23}], "change_1y": {"Appartement": {"from": 2022, "to": 2023, "pct": 19}, "Maison": {"from": 2024, "to": 2025, "pct": -4}}, "quartiers": [], "counts": {"buildings": 4157, "units": null, "sales_dvf": 1062}, "demographics": null, "summary": "Le prix médian des appartements est de 737 €/m² en 2026, en baisse de 49 % depuis 2014. Le prix médian des maisons est de 1 274 €/m² en 2026, en hausse de 15 % depuis 2014. 866 ventes d'appartements et de maisons analysées depuis 2014.", "prices_3_years": {"window": {"to": "2026-06-30", "from": "2023-07-01"}, "appartement": {"count": 21, "median_price_m2": 1211}, "maison": {"count": 81, "median_price_m2": 1154}}, "street_prices": {"page": "https://immobilix.app/prix-immobilier/tonnerre-89700/rues", "markdown": "https://immobilix.app/api/commune/89418/rues.md", "json": "https://immobilix.app/api/commune/89418/rues.json", "top": [{"name": "Rue General Campenon", "slug": "rue-general-campenon", "sales": 6, "prices": {"Maison": {"count": 6, "median_price_m2": 960}, "Appartement": {"count": null, "median_price_m2": null}}}]}, "sources": ["DVF (Demandes de Valeurs Foncières) — Etalab / Cerema", "INSEE IRIS (FiLoSoFi, recensement) — insee.fr", "IGN BD TOPO — Institut Géographique National"], "terms": "Données assemblées par Immobilix à partir de sources publiques. Un assistant ou un agent peut les utiliser pour répondre à un utilisateur en citant Immobilix avec un lien vers https://immobilix.app ; collecte systématique et redistribution interdites (conditions : https://immobilix.app/cgu)", "attribution": "Immobilix — https://immobilix.app", "url": "https://immobilix.app/prix-immobilier/tonnerre-89700", "more_on_website": {"url": "https://immobilix.app/map/commune/89418", "content": "Carte de chaque bâtiment : historique des ventes, logements, DPE, estimation de prix par logement."}}