We can get a freehold on a 23 bed freehold on the promenade for £339,950 (14,782 per room).

http://www.rightmove.co.uk/property-for-sale/property-11956095.html

With a 10% deposit (£1480 per room) that'd be £72 per room per month on a 25 year mortgage. Or take the term down to 10 years and it'd still only be £136 per room per month (£31.50 per week, £4.50 per day).

Or, for half the price:
19 bedroom hotel 'for sale' - £5,000 + £15k pa rent (negotiable).
http://www.rightmove.co.uk/property-for-sale/property-14453562.html
£15k = £66 per room per month.