A local housing authority may designate either—
as subject to additional licensing in relation to a description of HMOs specified in the designation, if the requirements of this section are met.
The authority must consider that a significant proportion of the HMOs of that description in the area are being managed sufficiently ineffectively as to give rise, or to be likely to give rise, to one or more particular problems either for those occupying the HMOs or for members of the public.
Before making a designation the authority must—
The power to make a designation under this section may be exercised in such a way that this Part applies to all HMOs in the area in question.
In forming an opinion as to the matter mentioned in subsection (2), the authority must have regard to any information regarding the extent to which any codes of practice approved under section 233 have been complied with by persons managing HMOs in the area in question.
Section 57 applies for the purposes of this section.