If people are building enough supply around your land, your land will eventually not grow as fast or even go down in value. If all the demand is met by the ap

If people are building enough supply around your land, your land will eventually not grow as fast or even go down in value. If all the demand is met by the apartments around your land why would anyone want to develop the land when there isn't return. If their isn't any potential for return why would someone else want to buy the land?