The three Elm Cove properties are in a private neighborhood.  Their development is subject to a PDD (Planned Development District) - those development guidelines can be found linked here.

3632 and 3624 Russell are zoned NR: Neighborhood Retail.  Neighborhood Retail allows for commercial development along with single-family, duplex and multifamily development.  For a complete list of permitted uses, visit the City of Abilene planning website (summary of uses starts on page 81 of the document)