A cloister (from the latin claustrum - enclosed) is a covered walk with an open colonnade on one side, running between buildings facing onto a quad. In medieval times, cloisters were used for meditation or study gardens. The hortus conclusus or "enclosed garden" of medieval times featured a well at the center, from which four paths divided the garden into quadrants. We will have a fountain in the middle instead of a well.
The outside of our colonnade will resemble the cloisters above (an homage to Peter's time at Cambridge University, and a style which will fit in well with the Georgian architecture).
The inside will resemble the more monastic cloisters below. The idea is to create a cloistered garden between the Northern terrace and the Chapel, such as the example below, albeit smaller and more charming.
Other cloistered enclosures can be found at many of the older universities, such as Oxford...
and of course many religious communities as well...
To ensure that the arches tie in with the windows of the chapel, they will be designed to the same gothic proportions:
The cloisters will not be as grand or as ornate as some of the many more ancient ones...
Above: Me in the cloisters at Salisbury Cathedral 2002. 
