CA 5 February 1992. In 1989 a developer M was developing offices and purchased two houses with the intention of demolishing them and using the cleared site for car parking and landscaping. While the offices were being built M used the two houses as site offices with temporary planning permission. When that permission ended M intended demolishing the houses and telephoned the council to tell them the day before. It was pointed out that they had not given the required six weeks notice under Building Act 1984. M instructed their contractor to carry out a limited amount of work the next day to make the houses unattractive to squatters. In October 1989 enforcement notices were served on M and no further demolition work took place. The notices alleged a breach of planning control in the comencement of the demolition work and required M to return the houses to their original condition. M appealed to SoS on the grounds that the matters alleged as a breach of planning control do not constitut