Quoted from vid1900:If it's getting rebuilt, just have a rampway installed to the door.
Make sure the rise/run is ADA compliant and if you ever sell the house, it will be a good selling feature.
Although the USA life expectancy has dropped for the 2nd year in a row, people are sicker than ever, so having one of your entrances a ramp = good idea.
Great for getting yourself inside in the final years and even quicker to get you out once you are gone.