I went to Oxford last week, and managed to get a look at the recently redeveloped Westgate Shopping mall. It's probably the closest development that Callowhill Court would probably come closest to resembling if it ever gets off the ground.
It's not perfect but it gets a lot right.
-There's no distinction between the new bit and the older 1960s shopping centre at all. I was surprised at how nice the older part was actually. The quality of finish for the entire thing just felt very high. John Lewis>House of Fraser in more ways than one.
-Layout wise there didn't seem to be much in the way of real awkwardly designed areas that make it difficult to rent out units. It's also big, like really big.
-The south side facing the dual carriageway that, whilst a long impermeable wall, is an improvement over the one Cabot Circus has aesthetically speaking. At least with Westgate they incorporated the architectural history of the city into the design.
-The roof top spaces were a really neat feature, well landscaped and more extensive than what I was expecting. Decent number of places to eat with outdoor seating. Eastern section had a nice vantage of the spires. Also a nice touch was that you could enjoy the views without having to go to one of the restaurants.
It's what they should have done when Cabot Circus was first built; but I can understand why they didn't. Hopefully CHC can achieve something on par.
-There was also had a food court on the lower ground floor that looked pretty decent too. The mall had a good few stores and chains that Bristol could do with.
-Lack of a dependency on having a huge multi-storey car park. There was some underground parking but it is quite minimal and the expectation is really that you should use the buses. Very different from Bristol where the possible lack of a multi-storey for CHC gets touted as being doom for the project.
Some downsides:
-It's only really well incorporated with the existing main shopping area by its north entrance, but not so much everywhere else where it either turns its back on or is quite overbearing. The view from the rooftop terrace whilst nice, if you look down you're seeing quite closely into people's back gardens and houses on the estate next door. Probably not great if you live there [although not the worst thing either tbh].
-The external wall facing Thames St, whilst better than Cabot Circus is still a long impermeable wall.
-Rest of the shopping area in Oxford looked a little bit worse for wear in certain bits.
-Still a mall at the end of the day, make of that what you will!
Not quite a bad thing really but parts of Westgate felt maybe a bit too open in some areas, like they had too much space they didn't know what to do with.