"In order for the appeal to succeed and for a lawful development certificate to be issued, it is for the appellants to demonstrate that on the balance of probabilities the appeal property had been in continuous use as a single dwellinghouse for a period of at least four years before the material date, that is the application date of15 October 2008 ."
"I note also that the council have recently issued a certificate of lawful proposed use under Section 192 (1) (a) of the Act to the effect that on29 September 2009 the conversion of the appeal property to a single dwellinghouse would be lawful. It is again open to the council to withdraw the enforcement notice and to reconsider the structure as an ancillary building that might benefit from permitted development rights. However I note that it would be considered in the light of the October 2008 amendment to the GPDO."
"Reasons 6 The appeal property is a substantial two-storey semi-detached property on the northern side of First Avenue built in the early 20th century. This part of First Avenue is predominantly developed with detached and semi-detached properties of similar scale to the appeal premises, and mainly in some form of residential use. 7 At the time of my visit there were extensive works in progress - the front entrance hall and front room had been formed into a single space, sanitary and culinary fixtures had been removed, and there had clearly been alterations to a number of partition walls. 8 It is apparent from descriptions given at the inquiry, that there had been a kitchen and a shower/WC on the ground floor in the back extension. Otherwise on the ground floor was a spacious entrance hall, three principal rooms in the main body of the building, and a further room in the back extension. On the first floor there had been another kitchen above the front entrance hall, and a bathroom towards the back of the house, as well as four principal rooms. The staircase rose out of the entrance hall, and there was no physical separation such as a door or partition between the two floors. 9 Mrs Hennessy had lived in the appeal property as a child from 1962, when it was bought by her parents. She moved out in 1976. She then lived there for another period from 1978-1882 [1982], before returning to live there with her husband from 1983 onwards. They had lived on the first floor while her parents lived mainly on the ground floor, but with the father using the front first floor room as his bedroom. Their first child was born in 1983. 10 Until about 1985 Mrs Hennessy's mother continued to cook for the entire family, but in 1985 - after twins had been born - the first floor room above the front entrance was converted to a second kitchen, and what had been the father's bedroom became used as a living room for Mrs Hennessy and her family. 11 from 1995 Mrs Hennessy undertook and was responsible for all the cooking and general housekeeping, as her parents were becoming increasingly frail. Her elder son continued to use the bedroom on the ground floor. By 2006 both parents had died, at which point ownership of the property passed to Mrs Hennessy, who sold it to the family of the current appellant. I understand that for the entire period of occupation by Mrs Hennessy's family and her parents there had been no separation or separate billing of utilities, and that costs for maintenance of the building were shared. 12 Evidence for the council suggested that the building had historically been used as two flats - but that was a considerable time before the period relevant to this appeal. There was also some evidence from nearby residents to the effect that the two floors had been occupied separately, and that the cost of works to the building had been charged separately to the ground floor and the first floor occupants."
"13 Paragraph 2.81 of Circular 10/97 Enforcing Planning Control: Legislative Provisions and Procedural Requirements includes the advice that 'Where a single self-contained set of premises ..... are used as a dwelling, whether permanently or temporarily, by a single person or more than one person living together as, or like a single family, those premises can properly be regarded as being in use as a single dwellinghouse for the purposes of the Act'. In this case, although those living in the premises belonged to the same family, it appears to me that the older generation living on the ground floor were leading a quite separate existence from the younger family living on the first floor. Although there was no physical separation between the floors, it appears that the intention was for the two parts of the family to lead separate lives. 14 Although there was some use of ground floor facilities by members of the family living on the first floor - the elder son used a ground floor bedroom, and the shower room was used occasionally, as was the garden - this did not to my mind amount to living together as a single family. It was rather the use of these facilities as a matter of choice and convenience. While Mrs Hennessy was clearly providing a considerable degree of care for her parents - latterly only for her mother - this appears to have been very much on the basis that she acted as a visiting carer, rather than her parents living within the same dwelling. Overall, as a matter of fact and degree, there was little sense in which the building was occupied as a single household. 15 I consider that on the balance of probabilities the building was occupied as two separate flats from the time when Mrs Hennessy moved back and established her young family from 1985 onwards, until the property was sold in 2006. On the balance of probabilities it appears to me that the property had not been in use as a single dwellinghouse for a continuous period of four years prior to15 October 2008 ."
"16 For the reasons given above and having regard to all other matters raised, I am satisfied that the council's refusal to grant an LDC in respect of the use of the appeal property as a single family dwelling, at No 23 First Avenue, Westcliff-on-Sea SS0 8HS was well founded and that the appeal should not succeed. Accordingly I shall exercise the powers transferred to me under Section 195 (3) of the 1990 Act as amended."
"35 It may perhaps help at this point to attempt some broad summary of the authorities governing the proper approach to a reasons challenge in the planning context. Clearly what follows cannot be regarded as definitive or exhaustive nor, I fear, will it avoid all need for future citation of authority. It should, however, serve to focus the reader's attention on the main considerations to have in mind when contemplating a reasons challenge and if generally its tendency is to discourage such challenges I for one would count that a benefit. 36 The reasons for a decision must be intelligible and they must be adequate. They must enable the reader to understand why the matter was decided as it was and what conclusions were reached on the 'principal important controversial issues', disclosing how any issue of law or fact was resolved. Reasons can be briefly stated, the degree of particularity required depending entirely on the nature of the issues falling for decision. The reasoning must not give rise to a substantial doubt as to whether the decision-maker erred in law, for example by misunderstanding some relevant policy or some other important matter or by failing to reach a rational decision on relevant grounds. But such adverse inference will not readily be drawn. The reasons need refer only to the main issues in the dispute, not to every material consideration. They should enable disappointed developers to assess their prospects of obtaining some alternative development permission, or, as the case may be, their unsuccessful opponents to understand how the policy or approach underlying the grant of permission may impact upon future such applications. Decision letters must be read in a straightforward manner, recognising that they are addressed to parties well aware of the issues involved and the arguments advanced. A reasons challenge will only succeed if the party aggrieved can satisfy the court that he has genuinely been substantially prejudiced by the failure to provide an adequately reasoned decision."
"2.81 It is important to distinguish the term 'use as a single dwellinghouse', in section 171B(2) from what might normally be regarded as being a single dwellinghouse. Experience has suggested that, on occasion, people may adapt, or use, unlikely or unusual buildings or structures as their home or dwellinghouse. However, the courts have held that, although there is no definition of what is a dwellinghouse, it is possible for the reasonable person to identify one when he sees it. If no reasonable person would look at a particular structure used as a dwellinghouse and identify it as such, it is justifiable to conclude, as a matter of fact, that it is not a dwellinghouse. In those circumstances, while its use as a dwellinghouse might be immune from enforcement action, it is not a dwellinghouse as such and, accordingly, would never enjoy the benefits of 'permitted development' rights under Article 3 of, and Part I of Schedule 2 to, the GPDO. The Department considers that a flat may be used s a single dwellinghouse in certain circumstances, but not acquire GPDO 'permitted development' rights as such, because Article 1 (1) of the GPDO specifically excludes them from the definition of a 'dwellinghouse' for GPDO purposes. For the purposes of the 1990 Act, where section 336 (1) defines 'building' as including any part of a building, the view is taken that a flat can be used as a single dwellinghouse, whether or not it would otherwise be regarded as being a single dwellinghouse as such, (see Doncaster MBC v Secretary of State for the Environment and Dunnill [1993] JPL 565). It is considered that the criteria for determining use as a single dwellinghouse include both the physical condition of the premises and the manner of the use. Where a single, self-contained set of premises comprises a unit of occupation, which can be regarded as a separate 'planning unit' from any other part of the building containing them; are designed or adapted for residential purposes, containing the normal facilities for cooking, eating and sleeping associated with use as a dwellinghouse; and are used as a dwelling, whether permanently or temporarily, by a single person or more than one person living together as, or like, a single family, those premises can properly be regarded as being in use as a single dwellinghouse for the purposes of the Act. This interpretation would exclude such uses as bed-sitting room accommodation, where the occupants share some communal facilities within the building, such as a bathroom or lavatory, and the 'planning unit' is likely to be the whole building, in use for the purposes of multiple residential occupation, rather than each individual unit of accommodation."