Duplex for sale by owner in Galveston, TX 77550. This duplex is located on beautiful Galveston Island in south Texas. It is in a quiet residential neighborhood and only 4-5 blocks to the beach, which has made it easy to keep both units rented. Both units are currently rented with a year lease at $850 per month or $20400.00 yearly. Each unit consists of a large living area, dining room, great kitchen ,2 bedrooms and bath. Rooms are large and each unit totals almost 1400 sf. Appliances are included. The building is in good shape and the roof was replaced in 09. The lower unit was also renovated ...