Solutions. Partnerships. Success.


"Our Mission is to be the region's industry leader in land development engineering by providing outstanding customer service, innovative and cost effective design, and a fierce commitment to helping our clients achieve success with their projects."



Jansen Strawn Consulting Engineers provides professional engineering services in the commercial and residential real estate development industry. We work directly with the client, project design team, and jurisdiction with the goal to create the most cost effective design possible.
    • Jansen Strawn can assist you with uncovering development related costs and help define land use concepts based on your ideas and industry standards

    Due Diligence and Feasibility Studies

    • At Jansen Strawn, we can lead or assist your team through the web of jurisdictional approvals. From annexation and zoning through full site plan approval, we can help provide a plan to allow for project success

    Entitlements and Permitting

    • Our talented staff can take your vision and prepare concepts for all facets of commercial development including: office, retail, industrial, schools, multifamily, and assisted living facilities. In addition, Jansen Strawn has an extensive background in designing residential subdivisions and master planned communities

    Site and Master Planning

    • Jansen Strawn can prepare all pre-development survey related items, including ALTA, topographic and utility surveys. Our talented staff can also prepare preliminary and final platting for your projects

    Land Surveying

    • Jansen Strawn can deliver your team full site civil construction plans including: horizontal control, grading, erosion control, roadway, utility, storm sewer, etc.

    Civil Construction Documents

    • Using federal, state and local design requirements, Jansen Strawn can provide roadway designs ranging from major arterials to local streets

    Roadway Design

    • We use our vast design experience with the latest design software to create preliminary and final grading concepts for your land plan

    Grading Design

    • Our knowledgeable staff of engineers can lead you though the FEMA process to analyze or modify a floodplain, whether it be a CLOMR, LOMR-F or LOMR

    FEMA Floodplain Analysis

    • Jansen Strawn’s engineering team can evaluate the storm drainage impact on the development and provide a design of suitable infrastructure to meet engineering standards. This may include the design of water quality and detention facilities, channels, storm sewer, and drainage ways

    Drainage Analysis and Design

    • We use our experience to appropriately size the water and sanitary sewer infrastructure associated with your development and evaluate the impacts on the existing infrastructure

    Utility Design and Studies

    • Jansen Strawn provides efficient erosion and sediment control design to meet local and state requirements. We have certified, experienced inspectors on staff and can provide inspection and reporting throughout the progression of construction

    Erosion and Sediment Control Design and Inspections

    • We can use our knowledge and experience to assist you throughout the construction process by providing observations, reviews and swift problem solving abilities for field related issues

    Construction Observation




At Jansen Strawn, we gain our client’s trust in the way we listen, respond, and build lasting relationships.


Tom Jansen
Principal -PE
Chris Strawn
Principal - PE
Todd Lyon
Senior Project Manager - PE
Ted Swan
Senior Project Manager - PE, LEED AP
Jason DeYoung
Senior Project Manager - PE, LEED AP
Matt Adams
Senior Project Manager - PE
Monica Unger
Senior Project Manager - PE
David Nighswonger
Senior Project Manager - PE