I currently live in the caretakers house of a school, located in its own driveway with a 10ft high metal fence surrounding the majority. There are only 2 entrances to the grounds, One large driveway at the front, with embankments, And the other to the rear, a large access gate often locked and secured against normal human intrusion. My idea is simple, Liberate several minivans, maybe a bus of some description, and block up the front, Securing it from possible zombie attack. The area itself is very secure, as it is designed to prevent intrusion from theft. There are several kitchens, toilets, boilers that can easily be converted to power generation. The works. It's a short stretch into the nearest town, where supplies can be scavenged, and has a large hill towards one side providing an excellent vantage point of the surrounding countryside. The site itself possesses several buildings which can individually be locked down and set up for various purposes such as supply depot, sleeping for any and all survivors found.

When supplies dry up, it's a short stretch to the motorway, and there are several small communities rich in supermarket chains but short in people within 10 miles giving ample supplies and mobility.

What more could you want?!