SEAHORSE ESTATES BEACHFRONT lot! Bring your own builder or inquire about local builders available. Seahorse Estates is located approximately 40 minutes to Galveston Seawall area and 1 hour from Houston. Enjoy the sunrises over the gulf and the sunsets over the bay. Lots in Seahorse Estates are platted to ensure that the views are maximized for every lot. Property owners in Seahorse enjoy access to the private bay pier system and beach access points.