Angel & Brianna were next-door neighbours. In 1993, Angel let Brianna know that they were intending to build an outhouse that backed onto the garden fence of the land of Brianna. In recognition of the ongoing inconvenience this was going to cause, and in the spirit of good neighbourliness, Angel mentioned to Brianna that they would be happy for her to make use of the driveway across their land, to give Brianna easier access to her land (before that point, Brianna’s access to their own home from the main road was more circuitous and only enabled access to the rear of the property).

This arrangement continued after the building work was completed, and both parties were happy with the arrangement. In fact, in 1997, Brianna decided that she would construct a proper parking area at the front of her house, given the regularity with which she parked there now that she had been permitted to use Angel’s driveway. The work was both started and completed while Angel was away, and when Angel returned, they commended Brianna for a job well done.

In 1999, Angel sold their property to Clyde. Clyde had spotted Brianna using the driveway when viewing the property, but thought nothing of it. When he again spotted Brianna using the driveway a couple of days after he completed the purchase of the property, he knocked on the door and said he would consider it a trespass if Brianna continued to drive across his land.

Equitable property rights can arise by estoppel. Which of the following are requirements for the creation of a property interest through the doctrine of proprietary estoppel? Select TWO answers that apply.