I have owned two different houses since I moved to Colorado, and each of them has been a training aid for a cyclist. My first house, out in Elbert County, sat 1300 feet higher than the bike shop. So, every trip home on the bike was hill-training.
But, at least it was an obvious climb. The house I have now really doesn't seem to on top of a hill, if you drive to it. But, if you ride a bike to it, from any direction, you go uphill. The slope from Colorado Boulevard is subtle, and I have had people argue with me that it's not uphill. I invite them to ride a bike a couple of blocks away, then come back.
The come back up the non-existent hill with a new respect for gradual elevation change.
It's amazing how different the world is from the seat of a bike!