@Lucia Rushton Dallas is certainly a diverse economy and most companies are migrating there .

The de/appreciation of real estate can be determined by a formula that utilizes mixture of mortgage rate, purchasing power/savings, real estate taxes, consumer confidence, jobs, migration. 

The first one was taken during survey and on the far right side you can see the junk on her yard, which later migrated to our lot.

I look at this map and I know there's single family homes being build in all of these areas but probably not enough to create a positive migration patterns. infill is tough. some of these aren't residential zones like south side the two zones are heavy industrial sites 

There are defenses to liability for property owners whose property is impacted by contaminated groundwater from an off-site source so long as you exercise what is known as "reasonable care". (2) since you will be using this for self-storage, this will be considered a commercial, not residential use, and many states have less stringent standards for commercial properties since people are not occupying the property 24/7. (3) If the levels in the groundwater would pose a risk of vapor intrusion (vapors migrating up from groundwater), you can install a passive sub-slab depressurization system (ssds) that acts like a radon system-capturing the vapors before they can get into the structures.(4) if soil is contaminated and you plan to pave the surface, this will generally be sufficient remedy if the soil contamination is at depth.

I am anticipating the migration patterns to continue west. 

If there are no lead paint concerns, and no water migrations issues from dirt etc. on the other side of the wall.

If I look at teh migration patterns over the last few years, Austin has been getting an influx of migrants from large cities from the coast and even within Texas due to the high cost of living or Austin having a more relaxed and family oriented life style ... or the tax savings :)

Interesting article of the domestic migration trends in 2018 with charts.As mortgage rates climb, affordability in the most expensive markets has suffered, driving more people to affordable, low-tax inland job centers in states like Florida, Texas and Tennessee.In the third quarter of 2018 people continued to move away from high-cost coastal markets like San Francisco, New York, Los Angeles and Washington, D.C., in increasing numbers.

And if none of that is true or possible…as beautiful as Colorado is, we live in the era of population migration….move!!!