781 sq ft which looked big enough two years ago when I started on my own, but now seems a little on the small side, but it is just me so it's a matter of efficient use of space and keeping it tidy. I have a spray, machining, assembly, handtooling and storage area so it seems to work well. There is the option to move into a bigger unit on the industrial est if I so wish, but I'd rather keep my overheads down, I don't owe anybody anything and I wish to keep it that way :lol: