mybusinessrates.gov.uk/wales the official government website
Understanding summary valuations
Every five years the rateable values of all 1.75 million business properties in Wales and England are reassessed. The most recent revaluation came into effect on 1 April 2005. Many ratepayers received details of their proposed new rateable value in the form of a summary valuation.
Introduction
You may have to pay business rates if you use all or part of your property as something other than living accommodation. This can include: