Which configuration raises value of house more?

We have a four-story brownstone in Prospect Heights that needs some major renovation. We’re torn about whether to turn it into an upper triplex with a garden rental, or a double duplex and we’d live in the top. Does anyone know which configuration works better for re-sale value? The limitation of the lower duplex rental is that it could only be a one-bedroom, unless we did major, far-too-expensive and destructive renovations. The house is otherwise pretty much in its original form, with lots of original details. Any advice re re-sale value? Thanks.

By prospect heights renovator |