The Lewises eventually acquired more than 30,000 acres on which Colorado Domino Type Herefords were raised.

[1] The city limits of Colorado Springs were extended to encompass Banning Lewis Ranch in 1988.

Efforts to develop the ranch into a residential community that could house up to 175,000 residents, and/or perform oil and gas exploration, initially had limited success.

[2] This lack of development was used as an argument against spending at least $2.1 billion to build the "Southern Delivery System" water pipeline.

[3] As of 2023 Banning Lewis Ranch now has two charter schools: Banning Lewis Ranch Academy and Banning Lewis Preparatory Academy; and one public school: Inspiration View Elementary School; two activity centers, two pools, many walking trails and parks, a dog park, and both tennis and pickle ball courts.