{"code": "60398", "name": "Le Mesnil-en-Thelle", "department": "60", "postcode": "60530", "population": 2439, "data_status": "complete", "prices": {"appartement": {"year": 2026, "sale_count": 41, "median_price_m2": 3364}, "maison": {"year": 2026, "sale_count": 14, "median_price_m2": 2294}}, "prices_period": "janv.–juin 2026", "data_through": "2026-06-30", "price_series": [{"year": 2021, "period": "2021", "type": "Appartement", "median_price_m2": 2537, "sale_count": 47}, {"year": 2021, "period": "2021", "type": "Maison", "median_price_m2": 2857, "sale_count": 43}, {"year": 2022, "period": "2022", "type": "Appartement", "median_price_m2": 3267, "sale_count": 26}, {"year": 2022, "period": "2022", "type": "Maison", "median_price_m2": 2883, "sale_count": 62}, {"year": 2023, "period": "2023", "type": "Appartement", "median_price_m2": 2966, "sale_count": 32}, {"year": 2023, "period": "2023", "type": "Maison", "median_price_m2": 3085, "sale_count": 38}, {"year": 2024, "period": "2024", "type": "Appartement", "median_price_m2": 3143, "sale_count": 17}, {"year": 2024, "period": "2024", "type": "Maison", "median_price_m2": 2954, "sale_count": 40}, {"year": 2025, "period": "2025", "type": "Appartement", "median_price_m2": 2671, "sale_count": 34}, {"year": 2025, "period": "2025", "type": "Maison", "median_price_m2": 3042, "sale_count": 30}, {"year": 2026, "period": "janv.–juin 2026", "type": "Appartement", "median_price_m2": 3364, "sale_count": 41}, {"year": 2026, "period": "janv.–juin 2026", "type": "Maison", "median_price_m2": 2294, "sale_count": 14}], "change_1y": {"Maison": {"from": 2024, "to": 2025, "pct": 3}}, "quartiers": [{"code": "603980000", "name": "Le Mesnil-en-Thelle", "prices": {"Maison": {"count": 67, "median_price_m2": 2746}, "Appartement": {"count": 17, "median_price_m2": 3077}}, "vs_commune_pct": {"Maison": 0, "Appartement": 0}}], "counts": {"buildings": 1646, "units": 1514, "sales_dvf": 433}, "demographics": null, "summary": "Le prix médian des appartements est de 3 364 €/m² en 2026, en hausse de 33 % depuis 2021. Le prix médian des maisons est de 2 294 €/m² en 2026, en baisse de 20 % depuis 2021. 424 ventes d'appartements et de maisons analysées depuis 2021.", "prices_3_years": {"window": {"to": "2026-06-30", "from": "2023-07-01"}, "appartement": {"count": 17, "median_price_m2": 3077}, "maison": {"count": 67, "median_price_m2": 2746}}, "street_prices": {"page": "https://immobilix.app/prix-immobilier/le-mesnil-en-thelle-60530/rues", "markdown": "https://immobilix.app/api/commune/60398/rues.md", "json": "https://immobilix.app/api/commune/60398/rues.json", "top": [{"name": "Rue du Chef de Ville", "slug": "rue-du-chef-de-ville", "sales": 14, "prices": {"Maison": {"count": null, "median_price_m2": null}, "Appartement": {"count": 14, "median_price_m2": 3022}}}, {"name": "Rue de la Libération", "slug": "rue-de-la-liberation", "sales": 7, "prices": {"Maison": {"count": 7, "median_price_m2": 2806}, "Appartement": {"count": null, "median_price_m2": null}}}, {"name": "Rue des Hayettes", "slug": "rue-des-hayettes", "sales": 5, "prices": {"Maison": {"count": 5, "median_price_m2": 2000}}}]}, "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/le-mesnil-en-thelle-60530", "more_on_website": {"url": "https://immobilix.app/map/commune/60398", "content": "Carte de chaque bâtiment : historique des ventes, logements, DPE, estimation de prix par logement."}}