I'm curious if these new tech can somehow help me streamline certain tasks or reduce dependency on scarce trades in your experience.Appreciate any additional thoughts I looked at 3d printing those machines are 800k plus.. and if you watch the video you need very large lots as you have to bring in truck loads of sand etc.. so thats not really going to work in an urban environment like Charleston SC were I have built 35 plus homes in the downtown core on lots that are from 12' wide to max of about 30' and roadways that are only 20' wide and have houses and cars on every lot expect the infill..

With that said, I kind of wish we had built as we grew a little earlier because retrofitting has been a bit of a pain. :)Best of luck.

To second what JD said, I built my own spreadsheet after looking at the calculators on BP.

Situated in the heart of the city's vibrant Art District, this 1977-built condo offers an exceptional blend of historical charm and modern living.

Because the rapport I built with the seller and the property is pretty much a dump, seller is ok with whatever happens as long as they will be released from the head ache.

Nobody planned to leave their cash stuck in it, and we had built massive equity. 

Unfortunately, @Jonathan Greene, in nearly all municipalities, fire escapes cannot be newly built and added onto a new project.

And depending on how the unit is built, the owner probably pays for water and sewer, maybe even for heat. 

Holding onto them will more than likely increase their value over time, along with all the equity you built through the flip.

We had always wanted a stick built home and we decided to take a leap of faith and make this home a rental.