“Not during the said term (i) without the consent in writing of the lessor and the superior lessor to cut or maim any of the walls floors timbers stantions or girders of the flat, or (ii) commit or permit any waste or damage whatsoever to the flat or make or permit to be made any alteration in the elevation or in the external decoration thereof or in the means of access thereto.”
“28. As regards whether there has been any alteration in the “elevation” we note the party’s respective submissions on the meaning of the word “elevation”
“[The] meaning has to be assessed in the light of: (1) the natural and ordinary meaning of the clause; (2) any other relevant provisions of the lease; (3) the overall purpose of the clause and the lease; (4) the facts and circumstances known or assumed by the parties at the time that the document was executed; (5) commercial common-sense, but disregarding subjective evidence of any party’s intentions.”
“The express contract is not to alter the height or the elevation of the buildings without consent. Nor do I think that the word “elevation” which is coupled with “height” ought to be construed here as relating only to the street fronts of the buildings. Any important structural alterations of the buildings after their erection, not authorised by the agreement or consented to by the corporation would I conceive be waste.”