Johnson County Justice Annex

A thoughtful design solution that addresses the needs of diverse user groups

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Johnson County presented el dorado with a unique challenge: Renovate an old Dillons grocery store to house three different departments in the Johnson County Justice System – the Sheriff’s Office, Court Trustees, and Court Services. We set out to “Un-Dillonize the Dillons,” to turn a big box store into a stately civic facility. The program and the construction itself were equally demanding. We cut away at the facade to create a single light-filled entry for all three departments, shaded by a wood-clad steel trellis. We programmed 48,000 square feet of offices, conference rooms, and public space to meet the specific needs of each department, with security of the utmost importance. We added windows and rooftop monitors to bring natural light deep into what before was a windowless space. Existing concrete block was modified through the addition of extra fenestration, and by the usage of a two-tone color scheme. Cedar was used as a sheathing material as well as for the construction of shading elements.
  • 2013
  • Architect
  • Olathe, KS
  • 47,600 SF


  • Johnson County Kansas

Eldo Team

  • Principal: Dan Maginn
  • QA/QC: Josh Shelton, AIA
  • Project Manager: Sean Slattery, AIA, LEED AP BD+C
  • Project Designer: Daniel Renner


  • Contractor: The Weitz Company
  • MEP Engineer: PKMR
  • Structural Engineer: Bob D. Campbell & Assoc.


  • 2014 Urban Land Institute, Kansas City - Developments of Distinction Award


Photography by

  • Mike Sinclair


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