This depends on your location within Silicon Valley, size of the space, etc.
Here is a rent survey from some YCombinator companies in the area and the average prices they paid:
Power/Water rates in SV are some of the most expensive in the country, and cost is entirely dependent on the size of the space, but can generally be figured in at around $.75 a foot.
Internet costs can vary widely dependent on speed, need and location.
Originally Posted: https://www.quora.com/How-much-does-office-space-rent-utilities-office-supplies-cost-in-Silicon-Valley
Originally Posted On: 2015-04-28