The purpose of the general valuation roll (GVR) and its supplementary rolls is to determine categories and market values for all registered properties within a municipality. The valuation is done on a pre-determined date as required in the Municipal Property Rates Act of 2004 as amended (MPRA) and uses the principle of willing buyer and seller in an open market to determine a fair price. There are several types of properties in the municipality – residential, sectional title, non-residential, agricultural etc. Each of these properties are valued using different valuation methods, although they all relate to the market value. For example, residential property (including sectional titles) are valued using the comparable sales method. Most commercial properties (including retail, offices, warehousing) are valued using the income capitalisation method, whilst institutional properties such as schools, hospitals and clinics are valued on a depreciated cost method. When valuing the properties, the municipal valuer establishes the market conditions as at the date of valuation, based on recent sales and market information in the various areas. This, therefore, takes into consideration areas where values have decreased, increased, or remained unchanged due to the current state of economy at the date of valuation.