The Real Cost of an Accessory Dwelling in Berkeley, California

A local contractor just completed a 640 square foot accessory dwelling in Berkeley, CA. The attached budget includes nice high end finishes throughout as well as many of the often overlooked necessities from building such as:

  • Custom architecture
  • Structural engineering
  • Geo technical engineering
  • Planning Permits
  • Building Permits
  • Asbestos removal
  • Demolish 1.5 car garage
  • Excavate >50 yards of clay soil, backfill with gravel
  • Radiant floor heat
  • Fire sprinklers
  • Custom kitchen

Download the budget here:  640 SQ FT BERKELEY – COMPLETED

This is the 640 square foot floor plan (there is an additonal 200 square foot loft).

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And this is the elevation drawing:

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