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About Us

Heynssens + Grassman, Inc., a husband and wife team of landscape architects, has been practicing their art throughout the northern suburbs of Chicago for over 20 years. They have built hundreds of gardens, from perennial borders to entire compositions of trees, shrubs and flowers complete with gazebos, water features, and stone terraces. Their experience in seeing the potential in a piece of property, whether large or small, urban, rural or suburban, in understanding the impact of new construction, the possibilities that accompany remodeling, what it takes to create a garden that will age gracefully, will allow you to achieve your long-term goals while making a realistic investment in your property. Whether your goal is to construct an elegant stone terrace for entertaining, a tidy brick patio for gardening, or a cozy wooden porch for lounging, Heynssens + Grassman, Inc. can make those places a reality. They have the expertise to design and implement a durable brick driveway, a curving stone walk, or soft gravel path. They have built quaint garden gates, romantic rose arbors, and all-purpose gazebos. Included in their portfolio are numerous custom swimming pools, natural lily ponds, and sculptural water features. If it is personal service, unique design solutions, and competitive construction costs that you are looking for, take a moment to call Heynssens + Grassman, Inc., at 847.360.0440.

Services Provided

Construction Drawings, Custom Fire Pits, Custom Water Features, Deck Building, Fence Installation, Garden Design, Gazebo Design & Construction, Hardscaping, Masonry, Site Planning, Swimming Pool Design, Trellis Construction, Perennial Gardens, Spring Flowering Bulb Gardens, Harvest Gardens, Paver Driveways, Tennis Courts, Spa, Pool House, Cabana, Terraces, Patios and Walkways, Landscape Lighting, Drainage Services, Landscape Design, Landscape Architecture, Fence Design, Custom Ornamental Steel Fencing, Rock Outcrop, Native Plantings, Indigenous Plantings, Woodland Gardens, Shade Gardens, Borders, Ornamentals, Shade Trees, Container Gardens, Containers, Stone Slab Steps, Masonry Columns, Masonry Walls, Gates, Annuals, Holiday Decorations, Gravel Gardens, Gravel Terraces, Parterres, Boxwood Maze, Knot Garden

Areas Served

Fort Sheridan, Ft Sheridan, Great Lakes, Green Oaks, Hawthorn Woods, Knollwood, Lake Bluff, Lake Forest, Libertyville, Mettawa, Vernon Hills, Winnetka, Kenilworth, Highland Park, Evanston, Wilmette, Skokie, Bannockburn, Glencoe, Deerfield, Kildeer, Glenview, Northfield, Riverwoods, Barrington, Barrington HIlls, Lincolnshire, Northbrook, Long Grove


Historic Preservation Award from the City of Lake Forest Numerous Awards from the Illinois Landscape Contractors Association. Projects featured in publications such as Architectural Digest, Chicagoland Gardening, West Suburban Living, and others, as well as the Open Days garden tours.

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Contact Heynssens + Grassman, Inc.
Heynssens + Grassman, Inc.
580 Old Skokie Road
Park City, IL 60085
Typical Job Cost $30,000 - 500000+
Costs vary depending upon your unique needs. We are happy to provide a quote!