Johnson County Park and Recreation District's Planning and Development
In 1999 the Johnson County Park and Recreation District commissioned Chicago-based Thompson Dyke & Associates and a team of nationally acclaimed specialists to prepare an analysis of the District's existing facilities and programs, and to chart a course for expanding and managing Johnson County's open space and recreational resources through the year 2020.

The recommendations within MAP 2020 included the acquisition of enough parkland to maintain a county-wide standard of
40-acres per thousand residents and the construction of at least three strategically designed and placed multi-use recreation facilities.

Another specific recommendation of MAP 2020 was the updating of master plans for each park in the county system. Planning for Antioch Park was completed by Theis Doolittle Associates in April 2003. A "3 Plans for 3 Parks" project was conducted by Landplan Engineering in 2003 for Ernie Miller Park, Heritage Park and Shawnee Mission Park. Patti Banks Associates developed master plans for Thomas S. Stoll Memorial Park in 2005 and the Oakridge Farm site adjacent to Shawnee Mission Park in 2007.

Master planning is currently underway for Sunflower Nature Park and two future park sites - the Rieke Lake property and the Cedar-Niles property. These plans are being developed by Bowman Bowman Novick, Inc.