Landscape Architects and contractors Rene Grassman Heynssens and Chris Heynssens have designed and built some of the Chicago area's most distinctive residential landscapes. Their award-winning landscapes and gardens have been featured in publications such as Architectural Digest, West Suburban Living, Great Backyards, as well as in professional journals. In addition, their projects have won acclaim from the Garden Conservancy which conducts its annual Open Days garden tours of selected private gardens throughout the U.S. Heynssens + Grassman, Inc. continues to win numerous awards every year for its landscape design, installation, and maintenance services which it provides to homeowners in Chicago and northern suburbs, as well as in lakeside communities in Wisconsin and Michigan.