There are three types of buildings in No Zombies Allowed that you can build on the empty lots as you expand. These are Businesses, Houses, and Special.

Businesses come in 2 forms:

Houses come in 2 forms as well:

Regular businesses and houses are purchased using coins , the in game currency you earn by selling products . Premium businesses and houses cost bucks , which are the in game purchasable currency. As with any game, the premium content offers a better value.

The special buildings consist of Heroes and Dojos which you can read about on their respective pages but mostly are all purchased with in game currency and considered premium content with the exception of the Mercenaries which aid you on supply runs and are all purchased with coins .