CA 8 October 1992. In June 1980 the appellant freeholder, M, granted the respondents, T, a monthly tenancy of a house. For the purposes of the Housing Act 1985 this was a secure tenancy. In May 1989 T served a notice on M claiming to exercise the right to buy the freehold of the house. M sent a notice admitting this and in December T received a written notice of the proposed terms of sale. All matters were agreed and completion was due on 31 August 1991. It did not take place because M discovered that in August 1989 T had moved out of the house to take up a three year post as warden of a girl guide hostel and in October 1989 he had sublet the house on an assured shorthold tenancy at a profit rent. This subletting was a breach of the 1980 agreement and had the statutory effect of the tenancy ceasing to be secure. M informed T that the sale could not proceed and sent a notice to quit expiring on 31 December. The house was not vacated and possession proceedings were started on the groun