TexasCHLforum.com

Be aware that there is nothing prohibiting you from carrying a long gun out of your yard either, but in many neighborhoods it may "cause alarm".
LEOs deal with people that cause alarm in different ways. And breaking a law or not, this can get you into some expensive trouble. The barrier between carrying in your yard and breaking the law is intent/purpose, which is more narrow that I'm comfortable with.. At least in a suburban setting.

I'd expect, if you're openly carrying a firearm in a suburban neighborhood, even if the property is yours, that you may run into the same problem. It'd be a good idea to have a camera backing your activity so there can be no "judgement" call in regard to anything that might be considered alarming behavior.