“…the Transferor for himself and his successors in title to benefit [Barnwood] and to bind [the Lodge] hereby covenants with the Transferee that no additional buildings whatsoever shall at any time be erected on [the Lodge]”
“…the right to erect a rear extension at the side of [Rose Cottage] to form a garage and at first floor to form a dining room and kitchen and to convert the existing garage at the said property to a bedroom in accordance with the plan annexed to a grant of planning permission in respect thereof dated the 23rd day of December [1985] together with a pitched roof on the said extension and the [1958 Covenant] relating to the erection of additional buildings on the [Rose Cottage land] shall be deemed to be modified pursuant to the terms of this clause…”
“The mere fact that a contractual arrangement, if interpreted according to its natural language, has worked out badly, or even disastrously, for one of the parties, is not a reason for departing from the natural language. Commercial common sense is only relevant to the extent of how matters would or could have been perceived by the parties, or by reasonable people in the position of the parties, as at the date that the contract was made.”
“148. The principle of estoppel by deed is explained in summary form in Halsbury’s laws of England, 4th ed reissue, vol 16 (1992), para 1018: ‘Estoppel by deed is based on the principle that, when a person has entered into a solemn engagement by deed as to certain facts, he will not be permitted to deny any matter which he has so asserted…The averment relied upon to work an estoppel must be ‘certain to every intent’ without any ambiguity, but may be contained in the recital or in any part of the deed’. 149. Estoppel by deed differs from estoppel by convention, not only by virtue of the relatively restricted circumstances in which it can arise (as described in the passage I have just quoted), but also in that it requires no subsequent conduct or any other act of reliance by the party invoking the estoppel… 152. …In Greer v Kettle[1938] AC 156 , 170 Lord Maugham said, after referring to the fact that the court had decided that an estoppel by deed can arise from a recital in a deed: ‘Subsequent cases laid down that the recital must relate to specific facts, must be certain, clear and unambiguous, and would not avail persons who were not parties or privies to the deed… 155. It may, at least at first sight, seem out of keeping with the modern, relatively flexible view of estoppel that such a strict approach should be adopted to any type of estoppel. However, as I have mentioned, unlike other estoppels, an estoppel by deed will, if its strict conditions are satisfied, normally operate as an estoppel without more…An estoppel by deed is described in Halsbury, vol 16, para 1018 as ‘a rule of evidence’, and there is, therefore, normally no question of considering the issue unconscionability, which looms so large in relation to other estoppels, including estoppel by convention. 156. In those circumstances, it is not hard to understand why the court should tend to limit the ambit of estoppel by deed. After all, if a provision in a deed…is sufficient to indicate a common understanding or common assumption, then, if there is subsequent conduct based on that understanding, such that it would be unconscionable for one party to resile from the common understanding, then estoppel by convention would frequently come into play.”