I am curious how others have handled the situation my siblings and I will find ourselves in in the near future. One sibling is willing to add an addition to their house to allow my parents to live with them and I am curious how others have handled the financial decisions in a similar situation. If you equally divide the cost it seems unfair as the homeowner is adding the equity to their property. In my case, my siblings home will most likely be the final house they live in and therefore when they resell they will gain considerable value. and in advance from anyone who can share their experience with been in a situation like this.