All buildings cost 700, have 20 hit points, 0 attack (duh!) and 1 defence. All of them are also discoverable in captured cities, similar to rare units. Unlike rare units, you'll still have to pay for their upkeep.
It's currently possible to build/find Coastal Battery in non-port cities, this is a known issue and will be fixed later.
Before we introduce buildings to the live server, let's get them some thorough testing at https://atwar-game-test.com!
Feedback and tweak suggestions are welcome. I know you'll want to give suggestions on their mechanics as well, but at the moment we won't be able to change that, sorry. Here's the list of things that can be tweaked (useful if you want to suggest new buildings as well):
Increasing other units stats (all or a particular unit)
Please note that we'd like to keep things like attack, defence, cost and HP uniform for all buildings. As you can see, you can't do that much with these limited tweakable things, but hopefully we'll be able to add new mechanics at some point later.