Estate accounts query

Good morning

I’m helping a client compile some estate accounts.

Her mother died recently and before her death she verbally agreed the price for a new bathroom. She then died before the work was carried out. Her daughter, the executor, inherited the house and a proportion of the residue. Her daughter lives in the house and will now benefit from the new bathroom.

Is the cost of the bathroom at £7500 an estate expense? Or should daughter be responsible for it or a part of it?

Thank you