I love playhouses! The toybox palace 10 x 5 under the two storey playhouses link is the one our two outdoor buns have, with a 9 x 6 x 6 run attached. The price is 995 on that site, for the playhouse and we paid 530 for ours including delivery-brand new from a manufacturer on ebay. They call them different names, but i'd advise looking around for a better price as the site in the link is incredibly expensive
we looked at the jail house but it wasn't practical for space and cleaning out purposes, as we have guinea pigs on the second floor! We converted the windows from fixed to opening, as A lot of companies charge a fortune for adding this feature. The garden centre at barton under needwood near burton has a huge range for anyone in the midlands wanting to test a playhouse out before buying online.