The Land Registry keeps records of all buildings and pieces of land in the Netherlands. Check the Land Registry for the owner, property boundary and cables.
Every year the municipality determines the value of immovable property (house, building, plot or land). This is called the WOZ value. BsGW does this for the municipality.
The municipality regularly sells real estate such as homes, buildings or social facilities. But it can also sell undeveloped pieces of land or residual strips.