Ballpark on basement work

Hello,

I have around 800sf of space which I would like to convert into an office space (more questions about the way to approach it I’ll ask in another post), the things I want to do-

1. the ceiling is now about 7 feet. I would like to dig to make it 8-9 feet.
2. installing small toilet room (there is already piping set for it)
3. enlarging the two windows.
4. digging the front of the house to create a niche for the windows which face the street, and stairs to lead into the door.

I know it is hard to give an estimate but I would appreciate it if someone could give it a shot.

Thanks.

By Williams |