Residential properties in Humble, Cypress and Spring are very affordable if you're considering investing in this area. Price per square foot varies depending on the location, condition of property, age of the home, etc. If you're looking for foreclosures, price per square foot starts at $40/sf. Non foreclosures properties range from $65/sf and up.
As far as commercial units, I am not familiar with the pricing on commercial, but I can refer you to a commercial agent.
Feel free to send me an email (just click on my photo for contact information) or call me directly and I'll be glad to provide you with more information.