Yes. The hon. Gentleman is absolutely right. The fact that some do not bother to maintain their sites should be dealt with. It is for the local authority to tackle the issue through the new licensing enforcement tools introduced by the Mobile Homes Act 2013, which was promoted by my hon. Friend the Member for Waveney and came into force just a few months ago, in April 2014.
The answer to poorly maintained and managed sites that suffer from a lack of investment in their infrastructure is to use that new law and report poor conditions to the local authority, which under the licensing powers can require the site owner to spend money on improving conditions.