Today 21144, Severn MD is count around 18 homes for sale at current average listing price of $565,583. Nearby neighborhoods of 21144 are None Available, Ashton, Boyers Ridge, Cedarhurst, Coldwater Reserve, Grande View Park, Highmeadow Hills, Jacobs Forest, Munson Heights, Regulars. Most of 21144 homes are 4 bedrooms with 3 bathrooms.