Sir – We share the view of Cassandra Barrington-Harness that in Oxford ‘we have one of the most precious, stunning urban environments’ (Letters, August 11).

It is, however, our experience that the University and the colleges, rather than wishing to restrict access are far more aware of being part of the wider Oxford and Oxfordshire community.

For the past five years Oxford Preservation Trust has run Oxford Open Doors in a partnership with the University and the colleges, when places and spaces across the city open their doors and invite people in.

2010 saw 175 places and events and 50,000 visits of which over 70 per cent were local people. Oxford Open Doors 2011 takes place on September 10 and 11 when all walks of the city open, and with many colleges and the two universities taking part.

We have a variety of projects in hand to widen audiences and a sporting heritage theme as the Olympics approach.

Booklets are available across the city or at

All events are free of charge thanks to the OPT and our funders including the University.

We look forward to welcoming you all for what should be a fun weekend for everyone.

Debbie Dance, Director, Oxford Preservation Trust, Oxford