what is the absolute cheapest way to build offices in an existing warehouse?

Question

while keeping to code in N. California.
without a need for windows or insulation
while using the existing floor
....a prefab co. quoted me $20 psf including everything, electrical, ventalation, shipping, assembly, everything. Is there a cheaper way?

Answer 1

probably not while keeping within code.

Answer 2

$20/sf sounds like an excellent value!! Electric, HVAC, assembly, shipping... I doubt it could be contracted for much less and have as clean and professional look when done. Keep in mind that they also are conforming to YOUR local building code which is probably quite strict due to potential seismic events. BTW, How large of an office are you building?? There IS a cut off point where the exponential growth of the office space is cheaper to contract than to purchase pre-fab.... but keep in mind the service and amenities included. Hope this helps and good luck.

Answer 3

I did the same thing, but I built it my self. I built a 12 x 12 office using 2x4 and sheets of 4x8 paneling. I ran my own wiring direct from the circuit panel. I did not use sheet rock, put some insulation as a sound barrier. the whole job cost me around 900 dollars.which is about 6.25 dollars a foot.