Closely related to this consideration is the effect produced upon the mortgagor's ability to redeem. The mortgagee ought not to be
SOUTHWELL allowed against the mortgagor expenditure SO disproportionate to
the mortgage moneys and SQ out of keeping with the value of the security and of the equity of redemption that the mortgagor may be hampered in redeeming the property.
Then the character of the mortgaged premises must be considered. Changes are not to be made in buildings or otherwise which radically alter the nature or useful purpose of the property. However much the value is increased, the mortgagor is entitled, on redemption, to have restored to him the substance of the thing he has mortgaged.
A further consideration is the permanence of the improvement.
A mortgagee cannot charge expenditure on things, other than main- tenance and repairs, which do not or may not outlast his own posses- sion or enure for the actual benefit of the mortgagor and those claiming under him. Then the effect of the expenditure upon the value of the property is important. The mortgagee in possession cannot load the security with expenditure which is not represented in the enhanced value which it has given the premises.
These, however, are matters not in themselves affording decisive tests but providing the considerations upon which the reasonableness of the conduct of the mortgagee in effecting the improvements is to be judged. His own position is, of course, not to be left out of account. But he is to be considered, not as a potential owner, but as a creditor looking to a security as a means of repayment.
Upon the facts in the present case there can, I think, be only one conclusion when these matters are regarded. The dispropor- tionate amount of the expenditure and the alteration in the nature of the premises produced by demolishing the old buildings and erect- ing new semi-detached cottages on the vacant portion of the land and a single cottage on the site of the former building combine to make it impossible to allow the mortgagee to add the cost to the mortgage moneys.
It is no doubt very unfortunate for the mortgagee, and at the same time there can be almost as little doubt that the result to the mortgagor is a windfall. But the loss to the mortgagee arises altogether from her ignoring the mortgagor's position and proceeding