All from scratch, yeah!



As for canon areas... the Soukyoku Hill & First Division area are accurate, including the large courtyard around the 1st division barracks (that's where Ichigo fought Renji way back when). The spirit academy (10th division HQ) is canon in shape but not in placement (as the placement is unknown) and the 3rd division HQ is positioned in the correct place, though not shaped correctly (reference used for that was the Hitsugaya vs Gin fight). The Central 46 chambers are roughly in the right area (the bit with the hexagonal moat) and the zig-zagging wall in the south-west mirrors the one seen on wide-angle shots of Seireitei.



Everything else is non-canon, but I've tried to keep it as close to what should be canon as possible, only adding things where they've not been expanded on in the manga. For example, you see the little building surrounded by trees by the 2nd division HQ? That's the entrance to the maggot's nest. It's hemmed in by tall walls and trees so very much hidden. The 4th division HQ is positioned in such a way that it can be easily accessed from most directions in case of emergency, and the 12th division HQ is sprawling due to the nature of its members! It's also really near to the 4th division HQ as the 12th div deal with the senkaimon gates, so any casualties from the mortal world would need to be able to get to the 4th division quickly!



Feel free to use the map, if you're going to edit it I'd love to see what you do to it!



And thanks for the fave!!