The Dominion is a neighborhood and master-planned community in San Antonio, Texas. It is situated on approximately 1,500 acres within San Antonio's growing northwest side. The neighborhood now occupies a far-reaching swath of land once owned by Anson Jones, the last president of the Republic of Texas. Around the turn of the century, it was sold to …The Dominion is a neighborhood and master-planned community in San Antonio, Texas. It is situated on approximately 1,500 acres within San Antonio's growing northwest side. The neighborhood now occupies a far-reaching swath of land once owned by Anson Jones, the last president of the Republic of Texas. Around the turn of the century, it was sold to Adolf Topperwein, a world-renowned sharpshooter and member of Central Texas' large German community.