“The Purchasers so as to bind so far as may be the land hereby conveyed into whosesoever hands the same may come and so that these covenants shall be for the benefit and protection of the adjoining land of the Vendor being Ordnance Survey number 2273 on the said Ordnace Survey map and containing four point six five six acres or any part or parts thereof hereby jointly and severally covenant with the Vendor that the Purchasers and those deriving title under them will at all times hereafter observe and perform the restrictions and stipulations following but so that neither the Purchasers nor those deriving title under them shall be personally liable for a breach of such of the said stipulations and obligations as are restrictive which may occur on or in respect of the land hereby conveyed or any part or parts thereof after they or either of them shall have parted with all interest therein: 1) Within six months of the date hereof at their own expense and in a proper and workmanlike manner and to the satisfaction of the Vendor to erect and make and forever thereafter maintain and keep in good repair a cattle proof fence along the entire length of the western boundary of the land hereby conveyed and marked with a ‘T’ inwards on the said plan 2) Not at any time hereafter to use or permit to be used the land or any part or parts thereof for any purpose other than as a garden and ground to the curtilage of the Purchasers adjoining house”