Check a building plot in France before you buy or build
GroundSurf uses French national geoscience evidence to screen mapped geology and nearby subsurface records, and can use DVF+ transaction evidence for land-value context only when the available sample is strong enough.
Check a plot in FranceEvidence used for a French plot
InfoTerre geological evidence provides national mapped ground context. Map units describe the area and are not treated as a substitute for a geotechnical investigation.
The Banque du Sous-Sol provides nearby borehole and underground-work records. Their observations remain tied to their own locations.
GroundSurf can use geolocated DVF+ transaction evidence for an indicative land-only range when a defensible buildable-land sample exists.
If the DVF+ sample is insufficient, GroundSurf shows no generic French land value rather than manufacturing a plausible number.
Scope of the result
Any indicative value concerns the land component and excludes buildings and other improvements. Binding planning, title, parcel boundary and engineering decisions still require the competent French source or professional.