Back of the napkin - if the property can rent for 1% of the purchase cost it will likely be profitable.

Most back of the napkin calculations put the houses at 0.5%-.07%. 

That may help keep from doing slab cuts and running sanitary plumbing in ground. 

Based on what I am seeing I think this could rent for 900 to 1200 a month, and on a quick "back of the napkin" I think the numbers work.Here's the listing if any folks are interested.

Because the streets would be smaller, and the lots would be smaller some of the costs would be less, but some would be higher.The way the supply water and the sanitary is handled could raise or lower the costs considerably.There are expert consultants in this field.

I'm doing this before work; this is the best I'll give strangers on the internet for free ;)The slightly prettier back of the napkin math shows that while this is an interesting idea, it not some factory of untapped alpha. 

If these numbers are accurate, then just going off of napkin math, you will struggle with turning a profit, it any at all where rents are currently at.

.)- Sanitary and health concerns (COVID-19, etc.)Thanks!

Just as in your other recent thread about the 2% rule, you must keep in mind this rule is not a rule at all, just a guideline and quick back of the napkin calculation.

Our lease says on a continuing basis, the tenant is to keep the place in a clean, neat, and sanitary condition and then we explain details as to what that means.