“1 The Purchaser shall not at any time use the said property for any other purpose than as a private dwellinghouse. 2 The Purchaser shall not do nor permit to be done upon the property anything which shall be or become a nuisance or annoyance to the owners or occupiers of the adjoining premises nor use the same for any illegal or improper or immoral purpose … 4 No caravan on wheels or building or other structure or erection whatsoever permanent or temporary shall at any time be placed built or erected upon any portion of the land coloured light pink and hatched green on the said plan”