Here is a version of Builder Hall 9 that I have tweaked to make it more effective against 3 stars, especially in terms of trap placement and also how minions work in defense. If you own a level 9 builder, this base will also help you withstand attacks and get as many victories as possible. With this Builder Hall 9, I've stood at 6000+ cups last season.
Flat in the corner with a perimeter that’s not looking that wild but is, yet, really effective against what most attackers roll these days at Builder Hall 9. You should be maxed to really get the full benefit of this base… but mind there’s no other base that will work great for non-maxed BH9, I’m just pointing this out because I sometimes get messages that my bases don’t work but have a fresh/rushed BH9 player… don’t hate the player, hate the game – that’s how Supercell designed the meta at Builder Hall 9 and there’s little to nothing I can do about it and it doesn’t look like they will change anything for Builder Base anytime soon. I know it is a tough time through the last stages to get your Builder Hall maxed but you need to go though that period where other maxed players will smash you merciless before it gets better.
NOTE: You can clone the base directly using this link but please understand that obstacles will prevent buildings from being placed - if your village has grass or other obstacles in your base By yourself, you may have to manually rebuild works like the base sample above from the image we provided above. Link copy me below. Don't forget to leave feedback about this base template.