Potential issues that you might want to look into are zoning, the structural stability of the building if it is multi-story (flooring, people, appliance add a lot of weight per sqft).Depending on what type of construction the warehouse is (Pre-engineered metal building, block, bar joist, or structural) you might have good luck partitioning areas off for contractors, light manufacturing, etc.

Lots of us engineers in here by the way you will notice (M.E. degree for me but I.T. most of my career)

Use your search engine for Houston, TX CCIM.

I was thinking I’d be looking at roughly $175k/unit just for the actual direct construction costs, and deconstructing/removing the old buildings, site work, utility connection, holding costs, financing costs, architect/engineer fees, etc. all those ancillary soft costs would be in addition to that $175k/unit but like you I’m in the beginning stages of researching this idea.

Hello fellow BP'ers, I am considering engaging with Engineered Tax Services for a Cost Seg.

Do I need to submit plans from an architect/engineer or is City ok with owner-drawn plans?

I am a young engineer and I'm seeking to do something new on the side. 

In syndication, one of the target bases is high income earning professionals (ex. doctors, lawyers, software engineers) that don't have the time, expertise, or desire to invest their own money. 

A septic system is about 20k on the high end (non engineered).

If the front foundation wall (that has load against it) has to be over 10' tall, then Sevier County will require an engineer's stamp on the drawings.