In some respects this is a self-storage owner's first sales challenge... you have to sell them on your concept. Some people are going to be against the project based on preconcieved notions and stereotypes.
I think a big part of succeeding is to go into the process armed with information and statistics, such as traffic counts and such. Know in advance what items you are willing to concede and which you cannot. Be ready to promote the positive features of your project, such as any potential job creation, your other ties to the community, etc.
We did a webinar with the ISS on this topic... for anyone looking for more ideas, view it here:
http://www.trachte.com/seminars-webinars/webinars.php.
This webinar is from early 2008. One thing that has changed since then is that since there's less development, it's often possible to build in a site where the city would have rejected you two years ago. Back then they were holding out for a land use that would generate more jobs or tax revenue, where now a city planner may look at it and realize that self-storage is better than no development.
Steve
Trachte Building Systems