It's huge! I can see why you'd consider it.
It looks to me like some rewiring may be needed. Notice the extension cable feeding the appliances in the utility. Rewiring is messy and requires replastering afterwards, often.
Rads are old and may need replacing. Boiler likewise if same age.
I'd allow maybe £15000 for redecoration and works. Ditto what someone else said about thd flat roof too.