Research recent changes to building codes that require homes to be raised/elevated. 

So the new Harris County rules say that any rehab project in the 100 year flood plain needs to elevate the house unless the rehab budget is less than 50,% of the building/improvement value of the home.

I want to remove my bias here, so I will stick to the facts:Home had foundation repairs done in 2008 and 2012Seller had a 3rd party engineer do a class C foundation inspection on 3.20.2018 and provided the following:Overall elevation differential of 4.1 inches.  

That has helped us elevate into our own category and that was entirely by design.So again, if you ever want to see what that looks like in person so you can decide if you think you can offer a Turnkey service in your city, you are welcome to come and visit.

That will be one of your bigger challenges along with slightly elevated taxes and water rates.

@Chris Hopper by flood cert, I think you mean elevation cert, correct? 

They will get everything platted and provide elevations and plans.The title company would check for title issues.A local well company can test the well if you want to know what you are buying.

Only real potential unknown for me is investing in a non-elevator building and unit is on 3rd floor.

. - Dec 17 we do the test and it reveals mild elevation (500-1500 ppm) of either Penicillium (laundry room, 1 bedroom) or Cladosporium (bathroom).

Hi BP,I'm looking to get floor plans and elevation drawings for an addition that I'd like to build.