National Records of Scotland

Preserving the past, Recording the present, Informing the future

Brief Description of the Methodology Used

Brief Description of the Methodology Used

Household estimates for 2001-2004 are based on information from each council’s Council Tax billing system.  These systems contain information on each dwelling in Scotland (Table 2), and dwellings entitled to certain discounts because they are vacant or second homes (Table 3).  This makes it possible to estimate the number of occupied dwellings  in each local authority (Table 4).  The number of occupied dwellings is not exactly the same as the number of households, for reasons outlined in Section 5.2.1.  Therefore, the figures are adjusted to the 2001 Census results, to obtain an estimate of the number of households in each local authority in Scotland (Table 1).

Council Tax was introduced in the early 1990s, so a different source must be used to provide household estimates going back to 1991.  Household estimates for 1991 to 2001, are based on population estimates (Table 1).  This involves taking each year’s mid-year population estimate, subtracting the number of people living in communal establishments, and using information from the 1991 and 2001 Censuses to estimate the number of households.

Council Tax systems contain little information about the type of household, so the Scottish Household Survey is used to estimate the number of households of each type, in Scotland as a whole (Table 5).  The sample size of this survey is not large enough to provide reliable information on each household type in each local authority area.

A detailed description of the methodology and sources used can be found in Section 5.