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Housing hazards and licences

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  • Release date: 19 December 2017
  • Period covered: 2016-17
  • Next update: 18 December 2018
An annual report which includes information on houses in multiple occupation and on the condition of residential properties assessed by local authorities under the Housing Health and Safety Rating System.

The report also includes comparisons with figures for previous periods.

Key points

  • During 2016-17, local authorities carried out 6,076(a) assessments under the Housing Health and Safety Rating System (HHSRS), a decrease of 3 per cent on the previous year.
  • As was the case last year, over two thirds (68 per cent) of all assessments made during 2016-17 recorded no Category 1 hazards.
  • During 2016-17, Category 1 hazards were found in 1,949 (32 per cent) of all assessments made. The most common Category 1 hazard found in both Houses in Multiple Occupation (HMOs) and non-HMO dwellings was ‘Excess Cold’.
  • Action by local authorities, during 2016-17, resulted in 1,263 Category 1 hazards being resolved, of which 802 (63 per cent) were in non-HMO dwellings and 461 (37 per cent) were in HMOs.
  • At 31 March 2017, local authorities estimated there were approximately 18,174 HMOs in total in Wales, and of these 81 per cent (14,722) were known to local authorities compared with 79 per cent the previous year.
  • The overall number of licensed HMOs across Wales has increased steadily over recent years with 8,839 licensed HMOs reported at 31 March.


(a) Includes estimated figures for Denbighshire and Wrexham as they were unable to provide data on assessments containing category 1 and 2 hazards during the year.


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