I am a resident and a Realtor in Mountain House. It does depend on the time of day you are traveling. I work in Downtown Livermore and it takes me about 25 minutes to get from my door to my office door. Sometimes longer if there is an accident but there are a couple of back roads that will get you there quicker. Hope that helps and if you are interested in more information regarding MH check out our community forum
Bus service link is: http://www.sanjoaquinrtd.com
Mountain House website : http://www.mhcsd.com
What times will you be commuting ?