Base Upgrades

I'm running Lost Mines of Phandelver for a group of new players. Only one of them have every played D&D before. It's a small group of 3 and then me as the DM. They've just defeated the Redbrands and driven Glass Staff from his lair. They're now heroes in the eyes of the townspeople.
As a reward, the town leaders have given the party Tresendor Manor! It's in rough shape, more then a bit dilapidated, but my question is, What are some cool upgrades for their new base of operations? What can they add to the house to make it more like a home, and more useful to a bunch of Muder(not)hobos?
They've already decided that Mirna (the woman the Redbrands had locked up with her kids) gets the alchemy lab in the basement to get a steady supply of free potions, but we had to end the session before they could come up with anything else.
I'm going to let them do almost anything within reason, but what are some of the things your groups have found useful in their headquarters?

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MEANWHILE, at stately Wayne Manor...

Oh cool, running this too and we just got to this point tonight. I never thought to give the PC's the manor hmmm interesting. Personally I use the ideas from the 3.5 "Stronghold Builders Handbook" because it gives you room sizes based on strong hold spaces. A neat idea for paying for basic bedroom, luxury, etc and spending gold for each.

Would you happen to have a .pdf handy?
At this point I really only have the 3 core books for 5th.

I'm charging then a "clean up" fee of 150 gold if they want to hire someone to clean up the manor, make it more structural sound, and remove the old rotting furniture. I'm including the basement hideaway in that as well.

And what costs would be logical in basic upkeep of a large house?
What's the difference between a Mansion and a Manor anyway?

It's generally considered a safe bet to safe 1-3% of the home's purchasing price to cover costs of maintenance so use that as a basis. Mansions and Manors are generally the same thing, though people use 'Manor' to refer to the building and the land its built on, while mansion is building exclusive

Well there's the obvious luxury stuff they can buy, sulk sheets and all that, but it would need to be fit the players.
Maybe take a page out of Pillars of Eternity, they have a pretty good stronghold with upgrades in that game.

Ok, but they got this house by killing all the bandits hiding in it's basement. The adventure didn't have a price for the manor.

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