A Water Tower House? in Kent

I am grateful to Ferrers Young of the British Water Tower Appreciation Society (a self confessed water tower nerd) for alerting us to this splendid water tower in Faversham, Kent:

It looks like a former railway tower but it is in a suburban location right alongside a road.   A good deal smaller than ours it seems to have been built on two floors from the outset.   I wonder if it is a dwelling and what the tank space is used for?   The TV aerials and the front door indicate habitation perhaps.   Again thanks to Ferrers this is what its Grade 2 Listing says:

STATION ROAD 1. 5282 (Faversham Station) Water Tower TR 0160 SP/748 II 0/748

2. Railway Water Tower. C1858 for the London, Chatham and Dover Railway, probably by their engineer Crampton. Classical style rectangular structure of 2 storeys, 3 windows built of stock brick with red dressings, riveted iron water tank above and iron framed windows. Road elevation has 1st floor blank round-headed openings in arcading and 3 ground floor round headed openings with fixed iron glazing, all with rubbed red brick arches. Rear elevation similar but entirely of blank arcading. Left side round headed doorcase with fanlight and blank above. Moulded brick eaves cornice. Above is riveted iron water tank reached by fixed iron ladder. Included for rarity of survival of railway water towers.

Listing NGR: TR0168160905

And he found this one in Lyly, Finland:

TV aerials too but not much in the way of daylight maybe.   The words accompanying the picture describe it as a summer house.