After inputting all the data, they provide a review that includes cash flow, Cash-on-Cash (CoC) ROI, and even a graph to estimate the property's growth through appreciation, yearly cash flow growth, and loan paydown.

Like maybe I could pull enough out from heloc on primary residence to pay off debt and then rent out my primary and use the extra cash to payoff heloc and then do another heloc once the original one is paid off.

Then you are making that decision based on the data for the area and that unit..... not on who lives there already

@Michael Palmer As a general rule of thumb bank originated construction debt will be WSJ Prime +1 point with a floor, 1 point origination and 75-80% LTC while meeting certain LTV thresholds (normally 70-75%).

@Chris Seveney - Where do you get your data on US treasury demand - per your "very weak demand" comment? 

However, as I mentioned in my original post, my immediate goal is to move out of our current townhouse into a larger single-family home that better suits my family’s needs (we have a baby and a big dog).

I don't think the estate was being decietful, but their dearly departed originally di have 8 acres but sold off parts along the way resulting in a net of 1.8 acres. 

Curious some data points / arguments / etc. other BP users have used in the past to argue how and why a project would benefit the community.

The fact you think this is funny just shows how little you know about data analysis and how online business service works. 

And the ones that were originally built have been renovated to become a SFH.