The Stained Glass Coffeehouse is hosted at the Congregational Church in Deerfield, located on Wilmot Road in Deerfield, just east of I-94 between Lake-Cook Road and Deerfield Road.  The address is:

Congregational Church in Deerfield
225 Wilmot Road
Deerfield, Illinois  60015

The Church's location can be found on Yahoo! Maps here.  It is located across the street from Walgreen's Corporate Headquarters.