Cost of a 310 square foot guest house in Berkeley, CA
The cost of a recently completed super-small guest house in Berkeley, CA, was $130,695 at the time of the project. (Updated for 2020, the cost would be $173,000.) The full costs are detailed in the line item budget here.
A summary of the costs is below:
$1,200: Survey
$3,312: Planning (zoning) permits
$3,650: Structural engineering
$550: Energy efficiency report
$2,830: Building permit
$563: Mechanical, electrical and plumbing permit
$20,854: Hourly design fees
$97,736: Construction costs
Here is a summary of the plans:
The full line item budget is here: budget 310 square foot detached cottage
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