I find this interesting that efforts are being made to spruce up Hougomont as the 200th anniversary of the battle approaches, you are welcome to connect the dots as far as that goes.
Any such efforts to spruce up La Haye Sainte, Papelotte or the farms on the Quatre Bras battlefield, I know one of them was going to be torn down so a nightclub could be built on the spot.
The La Haye Sainte complex is actually a functioning farm, which is a sin IMO, none of the buildings on the Gettysburg battlefield are functioning farms, they are all in the orginal condition they were in at the time of the battle, park rangers live in several of them from what I have been told.
Hougomont and La Haye Sainte should be restored to their original conditions at the time of the battle and tours be given on the grounds, those are sacred spots IMO.