ADU and Topo/Boundary Survey

[Hari Narayanan]

Hello fellow BP users,

I am about to start construction of ADU in the backyard of my property in East Bay. I was wondering if I need to get a Top or a Boundary survey done? Can someone who has built ADU in their backyard weigh in please? What do the inspectors ask for to ensure the new detached ADU is not encroaching in to the 4' setback from the property line?

I checked with the City and both the Planning and the Building departments said they don't require a Survey. But I should get one if I want to be doubly sure about the setbacks.

What do you all think?

Also, does anyone has a recommendation for a reliable Surveyor they have worked with in the past, could they please DM me?

Thank you!