Looking to reach level 21? Casey provides a good outlook on what buildings you should keep around and which ones to let go.

Casey's Outlook on Buildings

• Keep in mind that all level 21 buildings give some kind of extra bonus.
• Villas give a 2% attack bonus, Hospitals give a 5% health bonus, and Barracks give a 10% defense bonus.
• If my hospitals hold 200-300k troops, but I have 4 million troops, those hospitals really won’t do much if I get rallied ten times while I’m offline and lose everything. Though, I do keep some hospitals for the bonuses.
• I have T4, they are super expensive and take forever to train. I can train 20k at a time, but it takes 4-5 days to do so. Do I need to be able to train that many at one time? No. But the 40% defense bonus is nice to have.
• I know many people who only have one barrack and one hospital after a certain point because they want to be able to train troops faster and use less speedups. However, I have tons of speedups and get gold and speedups regularly so I keep others for the bonuses.

What I think you should consider as well

• It's most important to consider your play style when choosing which lvl 21 buildings you want to build. For example, are you a mainly defensive person (barracks and hospitals), where you like to build tons of traps and place skill points in trap attack? Or are you always out trying to get as many kills as possible (villas)?
• Your alliance play style
• Your role in your alliance. Are you going to be the leader of rallies on enemy castles, your wonder, or the super wonder?
• Are you willing to spend the gold to retrofit your entire castle with new buildings when you are ready for lvl 21? Maybe you will need to change your play style a bit to make the buildings you have work for you.
• Maybe you want to keep a lot of villas for the time being while you grow your stock pile of T4s from 60mil power into the 100s of millions.
• Etc.

What other general considerations are important to consider in you mind?

Those of you who are 21, what is your build out?

Contributed by Casey