De Holle Bilt 22 is Landhuis Houdringe, a monumental country house from 1779 set in a leafy park within walking distance of the centre of De Bilt. The estate is being renovated for modern office use, with a shared monumental entrance, lifts in the office wings and new installations, and office space is offered in both wings. Utrecht Science Park and the A28, A27 and A12 are close by.