How difficult is it to convert SFH into a duplex?

[Vinh Nguyen]

Hi BP,

I have a SFH rental property that is about 1100 sqft. It's zone RM-1. I would like to convert into a duplex for better cash flow.

How difficult is it to do so? How expensive? How complicated is it to get a permit or add a second electrical unit?

Thank you!