The minimum requirement is that the premises are in the same condition as when you moved in.
All cleaning needs to be done before the final inspection (survey-out).
Please focus special attention on :
wooden floors need to be cleaned and if necessary (depending on type wooden floor and used cleaning materials) treated with special products.
Stone floors must be cleaned and all stains removed (be very careful when using corrosive products or de-greasers on floors! )
Carpets must get a shampoo cleaning.
all dust (cobwebs) removed, all material attached to wall like posters, decorations, etc must be removed and holes filled up with plaster.
woodwork should be cleaned and stains removed (remove dust from top of door and wooden skirt board around door)
glass cleaned inside and outside, woodwork cleaned, dust in woodwork when windows are open.
If curtains are present they must be cleaned otherwise you will be charged for it.
clean oven and all utensils, fridge, freezer, hood cleaned and filters replaced or cleaned, all cabinets washed etc..
all cabinets washed, all chalk removed from tabs (also underneath sink), tub, sinks, shower window(s).
Terrace, drive way :
cleaned and all unwanted weeds, moss removed
lawn mowed and maintained, hedges cut back etc.. discuss this with your gardener.
It's going to be a loooooooooooong last day.