The meaning is clear, but it doesn't necessarily have to be so long. There are a couple of ways to say it: From my home, my office is a 20-40 minute drive. My office is a 20-40 minute drive from my home. This is merely a change and word order and both are ok, but I think the 2nd option is what you would hear most often. Also, maybe this is just my preference, but I feel that "house" would be better than "home." My reasoning is that "house" references the location, while "home" is more of a concept. Of course, "home" can also refer to the location as well, but I would say "house" in this case. I hope this helps. :D

From my home, my office is a twenty-to-forty-minute drive.