Timelapse of building works

[TimStannard]

I've been asked to investigate setting up a timelapse of a new build at a school I work at.

Has anyone experience of putting together a timelapse of a building being constructed?
What gear do I realistically need?
Presumably a camera that is connected to the mains? Control via a PC rather than the camera itself?
What about frequency of shot?
Fixed exposure or auto?
Obviously this will require rock steady stabilization, but what other requirements?
Any other advice/recommendations (for equipment or otherwise)?

This is for a one-off project.