An out-of-shape house is older than its years and could lose 10% of its appraised value, that's a $15,000-$20,000 adjustment for the average home. But good maintenance can even add value. A study out of the University of Connecticut and Syracuse University finds that regular maintenance increases the value of a home by about 1% each year. So if you've been deferring maintenance, or just need a good strategy to stay on top of it, here's the simplest way to keep your home in good health.
This article has a list of things that you can do to keep up with the maintenance of your home. Another good idea is to contact your local realtor and have them take a look at your house to determine what things would need to be done to retain the home's value.