I had grand intentions of making a blog entry every time I hear of somewhere we should remember to visit near the canals. Lois mentioned this one, near Gas St basin in Birmingham, to us last night and I thought it was somewhere we wouldn't want to miss.... so here it is.
This is a national trust property - back to back houses. http://www.nationaltrust.org.uk/birmingham-back-to-backs/ Visits are by guided tour only and tours must be pre-booked. I think we'll enjoy a visit to see these historic houses.
Wiki had great photos of the houses. It's also worth a read - an excellent summary of the history of them. The "back" houses faced into a courtyard which you can see in the second photo below. Access to the internal courtyard appears to be in the first photo below - possibly the arched doorway. The bay windows on those houses were to let more light in.
I have visited a similar property at "The Rocks" in Sydney called Susannah Place. http://www.hht.net.au/museums/susannah_place_museum Well worth a visit!