The median number of rooms in dwellings for data zones, council areas and Scotland.
(showing types of area available in these data)
Note: These may be large files.
This dataset contains information on the median number of rooms for dwellings for data zones, council areas and Scotland. Data on number of rooms is obtained from the Assessors’ Portal in December each year, or the following January. The Assessors are, amongst other things, responsible for valuing each dwelling in Scotland for the purposes of assigning it to a Council Tax Band.
A 'dwelling' refers to the accommodation itself, for example a house or a flat, and includes second homes that are not let out commercially. Caravans count as dwellings if they are someone’s main home.
Number of rooms
This is defined as the number of habitable rooms (usually bedrooms and living rooms). This is different to the census definition, which includes kitchens. There may be some differences between different Assessors' areas in the way in which this information is recorded. For example, differences could arise in the treatment of open plan areas, dining rooms, kitchens and kitchenettes. Assessors are only able to reflect physical changes and alterations to dwellings once they have been sold and a reconsideration of the banding has taken place therefore this information may not always represent the most up-to-date position. Summary statistics for National Parks, Strategic Development Plan areas, urban-rural classifications and Scottish Index of Multiple Deprivation deciles are published annually in 'Estimates of Households and Dwellings in Scotland', which is available on the National Records of Scotland (NRS) website.
Postcode level information is extracted from the Assessors' Portal. Postcodes are used to assign data to data zones. The data is cleaned to ensure that all records are located in a data zone within the council area assigned by the Assessor. Records using out of date postcodes are also investigated to check that they are still placed in the correct data zone. Differences in total number of dwellings in a data zone outwith a threshold are investigated to determine if there is a reasonable explanation for the increase or reduction. Frequencies for variables (e.g. type of dwelling) are compared with earlier years' data to identify any potential issues. The results of postcode cleaning and quality assurance work are fed back to the Assessors' Portal each year.
Data on number of rooms is obtained from the Assessors’ Portal. Number of rooms is defined as the number of habitable rooms (usually bedrooms and living rooms). This is different to the census definition, which includes kitchens. There may be some differences between different Assessors' areas in the way in which this information is recorded. For example, differences could arise in the treatment of open plan areas, dining rooms, kitchens and kitchenettes. Assessors are only able to reflect physical changes and alterations to dwellings once they have been sold and a reconsideration of the banding has taken place therefore this information may not always represent the most up-to-date position. Furthermore, it may take time for changes as a result of new building or demolition to be recorded. When using data zone level information on dwellings and households, changes over time can occur not only as a result of new building activity and demolition but also because of changes related to the postcodes of dwellings. Postcode changes can occur due to improvements made to administrative systems or NRS data cleaning, re-locating postcodes which were previously allocated to an incorrect data zones. Differences can also occur due to postcodes being allocated to a different data zone because the distribution of their population has changed. These differences are likely to be minimal and have only a small effect on change over time except when looking at small numbers of data zones. Information on the number of rooms is not available for most dwellings in Shetland. No information is separately available for dwellings with seven or more rooms in Dumfries and Galloway.
Number of rooms for 2015 is an NRS estimate rather than being directly based on numbers extracted from the Assessor's portal in January 2016. Data on number of rooms was not available in the extract taken in January 2016. The estimates for type of dwelling for 2015 have been estimated by NRS based on data extracted from the Assessor's Portal in previous and later years. Dwellings which were present in the January 2016 extract have been matched to their number of rooms information available from October 2016, January 2015 or January 2017, in that order. Therefore the type and number of rooms information estimated for each dwelling may not be the same as that held on the Assessor's Portal as of January 2016, if for example the property was altered between January 2015 and January 2017.
The statistics are also provided in Excel, PDF and CSV formats on the NRS website. The statistics are designed to be consistent, and incorporate comparable historical data where appropriate.
Number of rooms is defined as the number of habitable rooms (usually bedrooms and living rooms), this is different to the census definition as that definition includes kitchens. There may be some differences between Assessors' areas in the way in which information on number of rooms is recorded. For example, differences could arise in the treatment of open plan areas, dining rooms, kitchens and kitchenettes.
It is the policy of NRS to make its website and products accessible according to published guidelines. More information is available in the Accessibility section of the NRS website.
The statistics are mainly used for informing councils’ decisions about housing need and service provision.
Data for each year is downloaded from the Assessors’ Portal in late December of that year or early January of the following year, e.g. 2013 data was downloaded on 7 January 2014. It is published in the following summer.
A small revision was made to the figures for two data zones in Falkirk Council area in 2012, for the years 2005 to 2009. This is to move around 20 dwellings to the correct data zone. The figures for the Council area and for Scotland as a whole are unaffected by this change.
2006-2007: Median rooms data previously published on the NRS website and the Scottish Neighbourhood Statistics website has been recalculated to exclude dwellings with missing data, to be consistent with data produced from 2008 onwards. At data zone level, the median rooms estimate has been increased by an average of one room in 245 data zones in 2006 and 74 data zones in 2007. At council level, the median rooms estimate has been increased by one room in Clackmannanshire and South Lanarkshire.
2006-2008: Estimated median rooms has been set as blank for Data Zones where more than half of the dwellings had missing data on number of rooms. This was done to be consistent with data produced from 2009 onwards. This has affected 94 Data Zones in 2006, 43 Data Zones in 2007, and 3 Data Zones in 2008 (note that this is in addition to 31 Data Zones which had previously been set as blank in 2008).
2010-2011: An error in the median rooms data previously published on the NRS website has been corrected. The median rooms estimate has been reduced by 0.5 rooms for 27 Data Zones in 2010, and 26 Data Zones in 2011. Note that the median rooms data for 2010-2011 previously uploaded on the Scottish Neighbourhood Statistics website did not contain this error.
Revisions and corrections to previously published estimates are dealt with in accordance with the Scottish Government Statistician Group corporate policy statement on revisions and corrections - a copy of which is available on the Scottish Government website.
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The data in this dataset are stored in the graph: http://statistics.gov.scot/graph/dwellings-median-number-of-rooms
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