ZoneG1 - Terrain Argile & G1

Name: ZoneG1 - Terrain Argile & G1
Author: Terrascan

Android app by Terrascan. Tools · Terrascan

Store rating: Unknown
Store rating count: Unknown
Download price: Free to download
In-app purchases: Listed by the store
Version: 1.3.3
Listing last refreshed: 2026-09-14

Store description excerpt

Is your land clay-based? Does your clay soil present a risk? Before buying, selling, or building, check in seconds the level of exposure to the risk of clay shrinkage and swelling (RGA) and the requirement for a G1 geotechnical study mandated by the ELAN law. ZoneG1 is the leading tool for individuals and professionals in the real estate and construction sectors in France. FREE FEATURES • Search by address: enter an address and instantly get the RGA risk level (High, Medium, Low, No Risk) • Interactive map with official BRGM overlay of clay risk exposure zones • Complete regulatory legend (ELAN Law, Art. 68) • Indication of the G1 geotechnical study requirement PREMIUM FEATURES (€4.99/year) • Search by cadastral parcel with display of the exact boundary on the map • GPS geolocation and search by geographic coordinates • Multi-parcel mode: analyze several plots simultaneously • Professional PDF export with map, cadastral data, and RGA risk level • History of the last 50 searches • Favorites and parcel saving • 🔔 RGA map change alert: be automatically notified if your parcel changes zones during the official update on July 1, 2026 PROFESSIONAL FEATURES (€24.99/year — all Premium features included) • Clay PPR data: consult the Landslide Risk Prevention Plans for each municipality • CatNat drought decrees: complete history of recognized natural disasters related to clay • PPR search by municipality or INSEE code • Personalized company logo and stamp on your PDF exports • CSV export compatible with Excel • Unlimited history with folder organization • Priority email support WHY ZONEG1? The ELAN law (Art. 68) mandates a preliminary geotechnical study (G1) before the sale of building land located in an area of medium or high exposure to clay shrinkage and swelling. A new RGA map will come into effect on July 1, 2026 — millions of additional plots could change zones. Premium subscribers receive an automatic alert if their land is affected. WHO IS IT FOR? • Individuals: Check the clay risk before buying property or starting a construction project. • Real estate agents: Inform your clients about ELAN regulatory obligations. • Notaries: Secure your transactions with official and reliable data. • Surveyors and engineering firms: Supplement your reports with PPR and CatNat data. • Builders and developers: Anticipate geotechnical constraints from the land acquisition phase. • Insurers: Assess the clay drought risk on insured properties. OFFICIAL SOURCES All data comes from the BRGM (French Geological Survey - https://www.brgm.fr), Géorisques (https://www.georisques.gouv.fr), and the GASPAR database of the Ministry of Ecological Transition (https://www.georisques.gouv.fr/gaspar). This application is not affiliated with any government agency. The information provided is for guidance purposes only and is not a substitute for a professional geotechnical study. Developed by TERRASCAN — zoneg1.com

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