It appears from the findings of fact that on 12 August, 1919, B. G. Oowper and the plaintiffs, Allen Brothers, entered into a contract with reference to the development of property belonging to the said Oowper, known as Fairview Farm, a copy of which contract will appear as an exhibit attached to the complaint in this action.
In this contract it was provided that the limit of expenditures for the development of the property should be $20,000, unless a larger expenditure was approved in writing by both parties. During the lifetime of the said B. G. Cowper and subsequent to the execution of the contract, much more than $20,000 was spent in the development of the said property, this being done with the knowledge and consent of the said B. G. Cowper, as was found as a fact by the court below. The requirement that consent to the increase of the expenditures should be put in writing was not complied with, prior to the death of the said Cowper.
It was found as a fact by the court below that the increased expenditures were consented to by B. G. Oowper, and it was directed that the contract be reformed to such an extent as tci permit the consideration of the actual cost of expenditure for the improvements in the division of the proceeds of the sale of the property mentioned in the contract.
The written contract referred to contains the following clause: “That should owner, (Cowper) and seller, (Allen) decide that it would be advisable to make additional expenditures in the development of said property in excess of the $20,000 hereinbefore provided for, such additional development may be made upon mutual consent in writing and the additional cost of said development shall be taken care of in the same manner as is hereinbefore provided for discharging said $20,000.”
The only point presented by this appeal is as to whether there could be and was a waiver by the testator B. Grimes Cowper of the stipulation *611in the contract that consent to the increased expenditures for developing the property should be in writing.
We have no hesitation in holding that the stipulation could be waived and the judge of the Superior Court has found as a fact that the testator personally knew of and consented to the increased expenditures as being necessary for the proper development of the property. In law such conduct constituted a waiver and the testator would be estopped from after-wards objecting to the increased expenditures. The law would not allow him to perpetrate a fraud, and doubtless he would not have desired to do so.
To constitute a waiver it must appear that there was an intention to relinquish the right or there must be words or acts calculated to induce the plaintiffs to believe that the testator had abandoned his right to require a written agreement as to such expenditures.
Waiver is usually a matter of personal privilege and must be made by the person whose rights are affected. Waiver is a matter of fact to be shown by the evidence, 40 Cyc. 267; Parsons v. Lane, 97 Minn. 98.
The usual manner of waiving a right is by conduct or acts which indicate an intention to relinquish the right. The binding effect of a waiver is founded upon the doctrine of estoppel.
The court finds as a fact that “Sections 4, 8, 14, and 19 of the contract were eliminated by said B. G. Cowper and Allen Brothers, in so far as they limited the expenditures of moneys for the development of the said land, and that by and with the consent of B. G. Cowper $204,000 has been expended in improving and developing the lands of B. G. Cowper, described in said contract, and that said moneys were so expended under an agreement between the said B. G. Cowper and the said Allen Brothers, that the expenditures so made should be a charge against the property and should be paid before any distribution of profits was to be had.” This, of course, means that the $1,000 purchase price has priority.
No one will be permitted to take advantage of his own wrong. The testator consented to these greatly increased expenditures and the land received the benefit of them. His acts are binding on the executor and devisees and they must abide by them.
The judgment of the Superior Court is
Affirmed.