mybusinessrates.gov.uk/wales the official government website
Working from home, renting out a holiday home or providing bed and breakfast - you may have to pay business rates on your property
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.
Your obligations
You are not legally obliged to inform the VOA if you make alterations to your premises, which could increase its rateable value. It is, however, helpful to inform your local Valuation Office - this avoids the possibility of receiving an unexpected backdated increase in your rates for any improvements made.