A trend has been established for the scores of listed buildings inspected on more than one occasion. In 47.2% of buildings inspected on multiple occasions the standard of maintenance remained the same, in 31.1% it improved and in 21.7% it deteriorated. The standard of maintenance of ‘road and water infrastructure’ and ‘defence works’ deteriorated slightly in relative terms.
The diagrams above show the proportion of historic buildings inspected on multiple occasions where the standard of maintenance improved, deteriorated or remained the same. The two diagrams show the distribution for all historic buildings inspected in the categories ‘good’, ‘reasonable’, ‘substandard’ and ‘poor’, and the distribution by CBS category.
A trend was identified only for historic buildings on which data from at least two inspections are available (n = 10,579). Buildings that were inspected only twice in successive years were disregarded.
Standard of maintenance stable for 47.2%
In an average of 47.2% of historic buildings inspected on multiple occasions between 2008 and 2013 the trend was for the standard of maintenance to remain stable. In 31.1% of cases the standard of maintenance improved, and in 21.7% it deteriorated.
Trend by score category
In 71.7% of listed historic buildings where the standard of maintenance was judged to be poor in the first inspection, the condition subsequently improved. 4.5% of those found to be ‘substandard’ had deteriorated by the last inspection, and 68.9% had improved. Where the standard of maintenance was first judged to be reasonable, 11% had deteriorated and 31.2% had improved; where the first inspection found maintenance to be ‘good’, 65.8% remained the same.
Trends by CBS category
Among the various CBS categories, it is noticeable that on the last inspection the standard of maintenance was found to have improved in more historic buildings than to have deteriorated. The only exceptions were ‘defence works’ and ‘individual objects’, where the standard of maintenance had declined in proportionally more objects than it had improved (1.7% and 1.3% respectively).
Inspection data from National Monuments and Historic Buildings Inspectorate (Monumentenwacht Nederland) – inspection reports 2008-2013
Monitoring frequency: annual
The trend shows the difference between the first and most recent inspection of the maintenance, and indicates whether the standard of maintenance improved, deteriorated or remained the same over the period in question.
The trend was identified only on the basis of listed buildings that had been inspected at least twice (n = 10,579). Buildings that were inspected only twice in successive years were disregarded.
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