Britechester looks like it would be located near Willow Creek.

What city is Britechester based on Sims 4?

Britechester is a world included in The Sims 4: Discover University. It is home to two college campuses, University of Britechester and Foxbury Institute. It is based on England.

Where is the Sports Arena Sims 4 university?

You have to visit a building on the Britchester campus, and then you can walk over to it. It is the building with the glass top and many windows, as Reevles said above. Reevles thank you for your help, now how put my banner on there stadium.