How to make structures only spawn if they have enough space?

Does anyone happen to know how to prevent saplings from breaking blocks when they spawn tree structures?  I know you can check for 'air' one block at a time, but for a medium sized tree that's already hundreds of blocks to check, so checking them individually really isn't viable. Planting a tree next to your house really shouldn't replace half of it when it grows up (or break the bedrock ceiling for example).

Is there maybe a plugin for this that I am unaware of?

PS: Apologies if there's an obvious solution that I've just missed, but I'm still fairly new to MCreator.