"6. The original building was designed and constructed in the 1840s or 1850s as a dwelling house for a single family. It was and is a semi-detached property, comprising lower ground floor, ground floor, first floor, second floor, and attic. 7. The appellant is a qualified architect of 23 years' experience, who in the course of his career has been concerned in large construction projects and responsible for a number of high-profile developments. In 1990 he purchased No. 5 Mount Avenue with a view to developing it and then selling the building as a whole or by separate flats on long leases. He obtained full planning permission for the development, and in 1990/91 carried out the works. The flats comprise 11 self-contained flats, of which 6 flats are in the original building, 3 flats in a new side extension and 2 flats in the lower ground floor. The side extension with the 3 flats is structurally independent of the old building, in that it has structural walls on all sides and takes no support from the old building. Its external elevations are in keeping with those of the old building. However, the new structure does depend on the old building for access, which takes place through the front door and up the staircase of the old building. So a total of 9 units are accessed by the original entrance hallway and stairway. The remaining 2 units are comprised in the lower ground floor of the original building, extended at the rear. Each has a separate entrance. There is shared access to parking and the garden for all occupants."
"(1) In this Part 'house in multiple occupation' means a house which is occupied by persons who do not form a single household. (2) For the purposes of this section 'house', in the expression 'house in multiple occupation', includes any part of a building which - (a) apart from this subsection would not be regarded as a house; and (b) was originally constructed or subsequently adapted for occupation by a single household; and any reference in this Part to a flat in multiple occupation is a reference to a part of the building which, whether by virtue of this subsection or without regard to it, constitutes a house in multiple occupation."
"The appellant is concerned that the premises should not be held to be an HMO because if they were it would materially reduce the value of the freehold, I think he said, by about£500,000 , from their present value of about£1.7 million . The reason for that, he says (and I have not heard evidence on the point) is that the premises would or might be registered as being an HMO, and HMOs are put in a lower category by the market, namely the same as that for lodging houses, hostels, guest houses and the like, whereas what he developed was more up market, namely a block of flats for respectable professional tenants."
"17 The appellant says that the correct description is no longer a 'house' but a block of flats. That is what the conversion was designed to achieve, and did achieve. Conversion is, he says, the proper word: what was once a house is no longer a house. It is a block of flats. On the facts of this case, I can see how the property can reasonably be described as a block of flats but I do not agree that it is no longer a house. 18 The conversion was obviously substantial, but the conversion, looked at as a whole, still leaves the building as a house."
"If the condition of a house which, or a part of which, is let in lodgings, or which is occupied by members of more than one family, is, in the opinion of the local authority, ..... defective with respect to any of the following matters ..... " and a series of matters are set out. That section was supported by or to be read alongside Section 21 (1) of the 1961 Act which provided as follows: "
"Counsel for the respondent, however, if I understood his argument aright, while conceding that if a building had not been divided into self-contained dwellings section 15 would clearly apply to it, argued that the building as a whole is no longer a house but comprises three separate houses, namely the three parts into which it is divided, and submits that, whatever might have been the position if section 15 stood alone, that view is supported by a reference to the provisions of section 21."
" ..... on a reading of section 15 taken by itself, it seems to me that the building in question was a 'house' within the meaning of the section."
"The conclusion, therefore, at which I would arrive at this stage is that the building with which this case is concerned was undoubtedly a house within the meaning of section 15."
"It does not provide that a building which is a house within the meaning of section 15 shall in certain circumstances be deemed not to be such a house. What it does is to provide that a building which is not such a house shall in certain circumstances be treated as such a house, and for myself I am unable to see how a section which applies to 'a building which is not a house' can assist in any way what is or is not a house."
"The Secretary of State may, with a view to providing a code for the management of houses in multiple occupation ..... [make regulations]."
"(1) The appellant says that he is deprived of his possessions, because the value of his property is reduced if it is held to be an HMO. It is arguable that there is no deprivation, because what he built or developed was an HMO, and no more."
"But on the assumption that there was a deprivation, the terms of the provisos are 'except in the public interest' and 'control the use of property in accordance with the general interest'. There is no evidence before me thatPart XI of the Housing Act 1985 is not in the public or general interest, and the evidence before me that it is, namely the terms of the statute itself and the subordinate legislation made under it, is overwhelming. (2) There is no evidence before me that the control exercised by the State by means of the Statute is not proportionate or that a 'fair balance' has not been applied. (3) I do not agree that interpreting the provisions of Part XI as applying to No 5 Mount Avenue would achieve little or nothing, or be disproportionate or unfair. The house was originally built for occupation for one household. It is now an extended and adapted house for occupation by eleven households. It is plainly a case where the stringent regime applicable to houses in multiple occupation ought to be applied and in my judgment are applied by Part XI of the 1985 Act and the appellant has no right under theHuman Rights Act 1998 to be protected against it."