{"code": "38181", "name": "Goncelin", "department": "38", "postcode": "38570", "population": 2400, "data_status": "complete", "prices": {"appartement": {"year": 2025, "sale_count": 11, "median_price_m2": 2532}, "maison": {"year": 2026, "sale_count": 20, "median_price_m2": 2928}}, "prices_period": "janv.–juin 2026", "data_through": "2026-06-30", "price_series": [{"year": 2021, "period": "2021", "type": "Appartement", "median_price_m2": 3460, "sale_count": 23}, {"year": 2021, "period": "2021", "type": "Maison", "median_price_m2": 3256, "sale_count": 23}, {"year": 2022, "period": "2022", "type": "Appartement", "median_price_m2": 3296, "sale_count": 15}, {"year": 2022, "period": "2022", "type": "Maison", "median_price_m2": 3306, "sale_count": 27}, {"year": 2023, "period": "2023", "type": "Appartement", "median_price_m2": 3639, "sale_count": 25}, {"year": 2023, "period": "2023", "type": "Maison", "median_price_m2": 2829, "sale_count": 13}, {"year": 2024, "period": "2024", "type": "Appartement", "median_price_m2": 2763, "sale_count": 5}, {"year": 2024, "period": "2024", "type": "Maison", "median_price_m2": 2572, "sale_count": 29}, {"year": 2025, "period": "2025", "type": "Appartement", "median_price_m2": 2532, "sale_count": 11}, {"year": 2025, "period": "2025", "type": "Maison", "median_price_m2": 3585, "sale_count": 14}, {"year": 2026, "period": "janv.–juin 2026", "type": "Maison", "median_price_m2": 2928, "sale_count": 20}], "change_1y": {}, "quartiers": [{"code": "381810000", "name": "Goncelin", "prices": {"Maison": {"count": 43, "median_price_m2": 2676}, "Appartement": {"count": 12, "median_price_m2": 3033}}, "vs_commune_pct": {"Maison": 0, "Appartement": 0}}], "counts": {"buildings": 1863, "units": 1480, "sales_dvf": 230}, "demographics": null, "summary": "Le prix médian des appartements est de 2 532 €/m² en 2025, en baisse de 27 % depuis 2021. Le prix médian des maisons est de 2 928 €/m² en 2026, en baisse de 10 % depuis 2021. 205 ventes d'appartements et de maisons analysées depuis 2021.", "prices_3_years": {"window": {"to": "2026-06-30", "from": "2023-07-01"}, "appartement": {"count": 12, "median_price_m2": 3033}, "maison": {"count": 43, "median_price_m2": 2676}}, "street_prices": {"page": "https://immobilix.app/prix-immobilier/goncelin-38570/rues", "markdown": "https://immobilix.app/api/commune/38181/rues.md", "json": "https://immobilix.app/api/commune/38181/rues.json", "top": [{"name": "Gr Grande Rue", "slug": "gr-grande-rue", "sales": 5, "prices": {"Maison": {"count": 5, "median_price_m2": 2676}, "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/goncelin-38570", "more_on_website": {"url": "https://immobilix.app/map/commune/38181", "content": "Carte de chaque bâtiment : historique des ventes, logements, DPE, estimation de prix par logement."}}