>semi-detached duplexes, which are much easier and still double the density on the lot! They built a duplex by me and the combined units went for less than wha

>semi-detached duplexes, which are much easier and still double the density on the lot! They built a duplex by me and the combined units went for less than what a SFH would have gone for. Plus I imagine it was more expensive to build. I think it only makes sense where the lot is big enough to fit 2 essentially full SFHs as a duplex.