A practical evidence-first guide to checking a building plot: cadastral information, geology, soil, groundwater, flooding, hazards, planning and contamination.
GroundSurf brings public evidence about a site together so you can see what is known, what it may mean, and what still needs to be confirmed.
Geology, soil, groundwater and terrain can reveal conditions that matter for foundations, excavation, drainage, settlement and slope stability.
Depending on the country and location, relevant evidence may include flooding, landslides, erosion, subsidence, sinkholes or karst, contaminated land, seismic conditions and volcanic hazards.
Public evidence is a starting point, not a substitute for a site investigation, survey, official planning confirmation or specialist advice.
Country building-plot guides: Czechia · Denmark · France · Slovakia