I’m always afraid the house will fill with gas and cause some kind of explosion or the tenant won’t know how to use them and cause an issue.  

Roblox too I hope.I think the next 15 years, it is still within 3rd wave of tech/energy sector explosion, just look at Cathie Wood investing.I would be happy if Texas experienced what Bay Area felt today ($700k per-door 2BR Class A Apt ; rented for $4,500).

My tenant reported that they heard a large explosion and then a massive fire ensued that ultimately ripped through four units.  

I use hicentral.com, redfin, and when looking at condos the best (to me) is hicondos.com If you are interested to see what's happening with the explosion of condos, hicondos.com will open your eyes big time. 

We also believe the planned redevelopment of downtown will continue to attract millennials  to the city.Wouldn't see San Antonio as an explosive market to be in but definitely more like a slow and steady growing city, which is also a good thing in my opinion.

Top employers include:a.Tinker Air Force Baseb.State of Oklahomac.University of Oklahomad.FAA Aeronautical Centere.OU Medical Centerf.Hobby Lobbyg.Sonic Corporationh.Hertz Corporationi.Dellj.The Boeing Company 2.Here is a breakdown of the top employer sectors in Oklahoma City:a.Government 19.2%b.Trade Transportation 19.2%c.Manufacturing 13.2%d.Health and Education 11.8%e.Professional and Business Services 11.8%f.Leisure and Hospitality 10.0% 1.The Oklahoma City metro is experiencing explosive growth!

There is no explosion of fires in recent history.

The explosion of growth in the Northwest Arkansas Area and associated appreciation rate and home price increases, coupled with not enough available homes for the demand, has led to growth in all the surrounding towns.

That said, there is areas in explosive growth pattern, support by planned city development, and for the smarty-pant's who put int he work to know those plan's ("ehe-hum") appreciation becomes a mathematical item vs guess-work. 

This was true prior to the lumber price explosion, but more true now that plywood and OSB have risen close to 300% and other lumber costs have risen substantially.BTW it is my belief that an ADU should never be appraised similar to a permitted extra duplex to quad, non-ADU, unit in CA.