Engineering-geological zone
An area with similar rocks and ground properties. The Czech Geological Survey describes it mainly with regard to building foundations.
An engineering-geological zone groups rocks and soils with similar properties. The Czech Geological Survey publishes the zones in a 1 : 50,000 map and gives the rock type and a short description for each, for example whether the ground is load-bearing, compressible or has a shallow water table.
What it is good for
A zone suggests what to expect from the ground before any survey. River alluvium tends to be uneven with shallow water, loess porous and compressible, and river terraces often offer load-bearing gravels and sands.
What a zone does not tell you
A 1 : 50,000 map is general. The ground on a particular plot may differ, so before a new building or extension the zone is replaced by an engineering-geological survey.
Want this information for a specific property?
Before you buy, we find, analyse and clearly present data about the place: land register, utilities from the operators, floods, zoning plan. An address is enough, within 48 hours, CZK 5,900.
The explanation is general and informative, not legal advice. The land register, the zoning plan and other official sources are binding.