The Maboneng Precinct is a very successful inner-city renewal project, filled with restaurants and art spaces (together with living and office spaces). Unlike Newtown, it's far more compact and seemingly more for the residents as opposed to tourists.There are some interesting architecture buildings and interesting public art installations - which is reason enough to go and have a walk around.
The premier arts space is Arts on Main, which reminded me of Tacheles in Berlin - a teeming with just a whole lot of different art works and artist spaces. Market on Main takes place on Sundays (10am to 3pm), in the Arts on Main complex and it has quite a nice vibe. The art and crafts are not curio pieces (in fact I don't think I saw a single curio piece), and there is an amazing variety of food. It's a great place to just walk around and relax - and have some awesome brunch.