The low bids likely don't account for the entire scope of work required to design, permit and build an ADU, including requisite utility upgrades and other site improvements.

Maybe Elon will build a Chunnel from Austin to the launch site.

So make sure to have those things taken care of.Here's HUD's inspection checklist which would be good to review and keep in mind. https://www.hud.gov/sites/dfiles/OCHCO/documents/52580.PDF 

Keep politics off this site man.

It sucks to live in a job site, but if you can take it, it's a worthwhile pursuit.

Certainly, if the information you're looking for - such as frontage, depth, acreage, etc - is included on the listing site or mentioned in the property's description, the tool should be able to extract it.

So I have a friend who has taken some serious steps to develop a subdivision: 100+ home sites and a few commercial properties on about 50 acres.

It would feed out to all the other sites that prospective tenants will be using but you should get enough traffic from just using Zillow Group and maybe FB Marketplace.I tell all my clients that it's not worth it in the current market to bother with the MLS. 

Utilities, site upgrades, engineering?

I'm fairly new to the site and not an expert on this topic but I'm interested in reading through others replies.