I am probably going to get slated for saying this - but an apartment in Calis "worth" £73000 - i don't think so!!
It may cost £73k because over the years rich Brits with no clue about values have pushed up prices ridiculously, but it certainly isn't worth £73k - especially in the current economic climate!
If you like it and are happy to pay that much money then fair enough I suppose, but i certainly wouldn't.
Just my humble opinion.