As of today, , there are 27 properties for sale in the 20622 area and 27 properties listed for sale in the city of Charlotte Hall. This single family residential home at 10420 Old Sycamore Rd # a in ZIP code 20622 was last listed for $—. This is 100% below the current $372,600 median price for Charlotte Hall and 100% below the median of $372,600 for the ZIP code. Of the 27 properties for sale in Charlotte Hall, 27 are single family homes and 0 are condos. 10420 Old Sycamore Rd # a is a single family residential home that is approximately 1,612 square feet, 35% below the city median of 2,478 and 35% below the 20622 ZIP code median of 2,478. The price per square foot was — which is 100% below the current median price in 20622 of $148 and 100% below the Charlotte Hall median of $148 per square foot.