Construction costs for your ADU will vary significantly depending on personal preferences, site conditions, location, and many other factors.
Size: Despite what many think, smaller ADUs may cost almost the same as larger ones. Many costs like foundation, kitchen and bathroom work only increase slightly for larger ADUs. Kitchen costs will range from $25,000–$50,000 with each bathroom ranging from $15,000–$25,000.
Type: New construction, both detached and attached, tend to be the most expensive. Garage conversions are not much cheaper than new construction if at all. Conversions of interior space (basement or otherwise) are often the cheapest.
Please give us feedback about ADUs in our area. If you leave your contact info, we may be able to get back to you with more information.
If you’re looking for specific advice or information about your property and ADU, please use the contact information for El Dorado County or the City of Placerville at the bottom of this website.