It’s going to happen when you least suspect it: the zombie apocalypse will be upon us and your life will be in your own hands against the living dead (that’s assuming hours behind a studio desk hasn’t already transformed you into a zombie yourself). Luckily, as architecture-types, we possess special skills needed to defend ourselves from those out for our brains. A fantastic display of anti-zombie ingenuity is on display at the 2011 Zombie Safe House Competition, like the above proposal to retrofit existing urban buildings against a future zombie invasion (with a green roof, no less), and you can vote for your favorite. (Here’s last year’s winner: a floating dwelling sailing the Mighty Mississippi.) This year’s voting ends this Monday—Halloween—when you’ll likely encounter a few rogue zombies wandering the streets.

Click on an image to go to the entry’s voting page, or check out all the entries over here.