Home / Planning Consultants Directory Please note that many of the planners listed will operate on an all-island basis, providing services in a range of areas across a number of counties or internationally. Go back to directory. Add to Address Book. Canavan Associates Ltd Canavan Associates Ltd 23 Prince’s Street LN Derry BT48 7EY Irelandhome Home Phone: 0044 28 71371700home Website: canavanassociates.com Categories: Derry, Northern Ireland, Ulster, Uncategorized Updated 4 years ago.