>>385814954
>Tier 3: 75 down from 150, 4 servants
let's briefly apply some autism to this, 
just eyeballing tile spacing and moving shit around as close as i can in my own castle on a different server
>castle heart: 1 tile
>average free space to actually move around and separate flooring: 10~ tiles
>average mandatory tiles needed to secure ramps with a gate: 6
>minimal 6 smelters, 1 forge, 1 crafting bench, 1 anvil: 8~ tiles totally squeezed together
>waygate: 4 tiles
>garden: 5+1 tiles for ~5 patches of different types
>graveyard with 3 spawners: 3 tiles
>minimal alchemy room with 1 rat spawner, 1 bloodpress, 1 alchemy table: 6 tiles
>minimal tailor room with 2-3 loom, 2 tannery, 1 tailoring bench: 8 tiles
>workshop with 3 sawmill, 3 grinder, 1 woodwork bench: 9 tiles (could maybe be squeezed to 6 with 2/2 grind/saw)
>servant coffin cuckshed: 4 tiles
>2 prison cages for worker+fighter blood: 2 tiles
>throne cuckshed with stone coffin: 4 tiles
>jewelcraft+gem table: 3 tiles

that's 73 give-or-take, not including any storage boxes/cabinets in the count, leaving you two free tiles to play autism tetris in stacking your boxes into a shitty little vault somewhere between all of it
no free room for decoration, no possible way to "honeycomb" your base if you're paranoid, completely cramped together with geometry that servants will perpetually be getting themselves wedged and trapped into

your idea would make sense if this game wasn't limited to strict box-grid building or had some form of verticality flooring, but this concept would force every single castle into being the same unsightly, claustrophobic shitbox