I'd make sure the water in both locations is similar. I'd assume if you're that close, it will be. If so, just fill a 5 gal bucket with water, add the fish and the filter media, then get rid of the rest of the water. You can keep the decor in a bucket of water too if you'd like. Then carefully load the aquarium into the car. I like to put some type of padding down like a blanket or towels. It's important to make sure nothing could damage the bottom of the tank. Then, set the tank up at the new location, pour water in, set your filter up, and add fish!
I moved about 30 fish using this technique two years ago, and I plan on doing the same this fall. Good luck!
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