The following budget shows the cost of a custom architect, permits, engineering, tree removal site work and construction for a guest house in Menlo Park, CA. This includes a full apartment with a kitchen and bathroom.
You can study the line items that are part of the design process here:
All projects vary in time and cost. Custom homes, additions and remodels have design fees that range from as low as $6,500 to more than $200,000. This is a guide for one particular project.
Here are the plans:
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