About Us

Élan Design Lab, Inc. was founded by Marcie Weslock, PE and Steve Johnston, PE. Steve and Marcie began working together in late nineties while at a local civil engineering and landscape architecture firm. Their career paths diverged, but ultimately brought them back together to build a stronger design firm that focuses on creating smart sites through sound engineering.

Élan Design Lab, Inc. is a civil engineering, landscape architecture, construction inspection service provider to the construction/development marketplace, including regional, state and federal agencies, counties and municipalities, state and local school systems, national corporations, commercial and residential contractors, developers, property owners and other architectural and engineering firms.

Élan Design Lab, Inc. draws its name from two segments of the company’s core businesses Engineering and Landscape architecture.  The definition Élan [ey-lahn] – “vigorous spirit, energy or enthusiasm” aptly describes the way the owners and the business approach new challenges.  “Lab” also denotes a place that is a testing ground for fresh, creative ideas and solutions. Élan’s staff is a collection of hardworking, creative people focused on discovering inspired ideas and solutions with vigorous spirit, energy and enthusiasm.

Élan is majority owned and managed by Marcie Weslock, PE qualifying it as Women’s Business Enterprise (WBE). Élan is a certified Disadvantaged Business Enterprise (DBE) by the Minnesota Unified Certification Program (MnUCP), a Woman-Owned Business by the State of Minnesota Department of Administration, and a small and women business enterprise (S/WBE) through the Central Certification Program (CERT).

Licenses and Certifications

Élan’s staff maintains the following active licenses and certifications:


Professional Engineers (PE) in: Minnesota, California, Iowa, North Dakota and Wisconsin

Registered Landscape Architects (RLA) in: Minnesota and Colorado


Design of Construction SWPPP


Congratulations on the new business. I look forward to continuing our long history of working on Walgreens projects together. Your expertise and attention to the details of development have always been greatly appreciated. Thank you for your past efforts and best wishes for many successful projects ahead.

John Kohler

President Kohlridge Partners

President | Principal Engineer

Marcie Weslock, PE

Marcie Weslock, PE, LEED AP manages the civil engineering and landscape architecture group providing team leadership, mentoring, marketing, project scoping, scheduling, and project management. Utilizing her varied industry experience she defines the company standards for design, documentation, project communication, and delivery.

Ms. Weslock is licensed to practice engineering in Minnesota and California. In addition to engineering, Marcie also holds a degree in interior design. This unique combination has shaped a skill set that provides an eye for detail that connects the interior and exterior environments. Ms. Weslock has spent her career working for local and national A/E firms, where she was responsible for the design and management of significant residential and commercial developments, the Hiawatha Light Rail Line (now the Blue line) as well as projects for US Army Corps of Engineers, national corporations, and local, regional, and state agencies.

Vice President | Principal Engineer

Steve Johnston, PE

Steve Johnston, PE manages the testing / inspections group providing team recruitment, management, mentoring, marketing, and supervision of senior staff. Mr. Johnston also provides civil engineering and project management services. Mr. Johnston is actively licensed to practice engineering in Minnesota, Wisconsin, Iowa and North Dakota.

Mr. Johnston was previously the founder and owner of three civil engineering firms and the vice president of a regional geotechnical engineering firm. Through these businesses he has become a fixture in the Twin Cities engineering community. His past projects include major residential and commercial developments, public infrastructure, site development for national retailers, and educational buildings.

Principal Landscape Architect

Pilar Saraithong, RLA

Pilar Saraithong. RLA provides landscape architecture and urban design services. With an undergraduate degree in architecture and a Master’s degree in landscape architecture she brings a distinctive design sense to Élan’s projects. Ms. Saraithong’s international project experience includes work across the US and in her native Thailand.