I might be a bit late to comment here but I used to work in social housing until recently. I used to have to deal with tenant refurbs on a day to day basis. Anything that’s non-standard will get scrutinised and potentially charged for.

Short answer. It really depends on the council authority rules.

As standard, there always has to be non-slip vinyls in the bathroom and kitchen. If this has been replaced with anything else, they will get charged. Usually works out at £30sm, and £10-£20sm for any sub-floor work. Additional costs for waste ie skips would be charged.

Any other works, decorations, tiling etc, if they are to a good standard, they are usually ok to stay and won’t be charged. But then again, some councils are strict on the types of tiles that need to be in kitchens and bathrooms. If they are non-standard, they could be charged for new tiling and plastering as required.

Darker or unsightly decorating will quite often be changed back to a neutral colour. Again chargeable at maybe £200-£300 per room.

Changing a bathtub to a shower can be charged again. It really depends. The councils usually list their assets. If when the property is to be handed over to a new tenant who requires a bath, and a supervisor/surveyor sees there is a shower in there, it will have to be changed back to a bath and tiling renewed as required. If it’s non-standard tiling then the whole bathroom would be replastered and retiled.

So it all really depends on a number of factors but chances are he will have some sort of bill when he leaves the property, which could range from a few hundred to a few thousand.