There is sometimes a degree of uncertainty concerning the application of permitted development rights to houses in multiple occupation. Here is an inspector setting the record straight (DCS Number 400-013-332):
“The appeal property is a mid terrace building currently in use as a small House in Multiple Occupation (HMO) for up to 6 people (Class C4). The proposal seeks approval for a single storey rear extension with a flat roof to 6 metres (m) from the original rear wall of the house. The GPDO allows for such extensions to terraced dwellinghouses. However, it is the Council’s assertion that given the current use of the appeal property as a small HMO, it does not benefit from such permitted development rights under the provisions of the GPDO.
Nevertheless, it is my understanding that HMOs, including those which fall within Class C4, can benefit from the permitted development rights granted to dwellinghouses by the GPDO. The test for whether a property is eligible to use the permitted development right is whether it can be considered a dwellinghouse within the context of the GPDO. On this matter, case law has established that the distinctive characteristic of a dwellinghouse is its ability to afford to those who use it the facilities required for a day-to-day private domestic existence.”
Having found that the property afforded the people who used it the facilities required for a day-to-day private domestic existence the inspector concluded that it would benefit from the permitted development rights granted to dwellinghouses by the GPDO.
The following DCP section is relevant: 11.2