1 INTRODUCTION
Due to the scarce supply of building land, the spatial planning
of Swiss municipalities has a considerable influence on the value
of an individual plot of land. An adjustment of the spatial plan
and the associated change in the possibilities of
use can significantly increase or decrease the value of a
plot of land. The revision of the Spatial Planning Act
(SPA), which came into force in its revised form
in 2014, created the basis for the mandatory introduction of a
cantonal added value compensation, which can be applied in the case
of zoning in, rezoning, upzoning and dezoning. The exact
implementation is to be determined by the cantons. In the meantime,
all cantons have introduced such added
value compensation.