About LandMark Engineering

LandMark Engineering and Land Planning, Inc. is a design-build/consulting engineering firm that provides engineering services to the State of Florida and Alabama. For over 20 years, LandMark has completed more than 400 residential and commercial projects annually. Our firm is also involved in both designing and managing several construction projects each year. Our chief engineer, Mark W. Spitznagel, is a dedicated Christian family man who believes that being committed to his word is more important than any profit or gain.


Our company specializes in the area of residential and commercial building plans that includes Civil (site planning and stormwater design and management plan), MEP (Mechanical, Electrical, and Plumbing) and Structural Engineering.


LandMark incorporates AutoCAD and Chief Architect in 3-D modeling. Since we are also a licensed General Contractor, our construction department routinely has the opportunity to evaluate our engineering to ensure that we balance cutting edge designs with value in construction.

LandMark Engineering also utilizes the latest advancements on structural commercial sign designs such as pole signs, monument signs, awnings, and billboard frames based on windload and structural analysis. We incorporate computer modeling programs and other proprietary design aids we have developed during our firm's 13 years of experience.

Codes and Standards

All of our work conforms to the most current codes and standards. The decades of combined construction experience of our project managers and construction consultants ensure that each project will be handled professionally. For years, our staff has been a proud member of

  • American Concrete Institute (ACI)
  • Institue of Electrical and Electronics Engineers (IEEE)
  • American Society of Civil Engineers (ASCE)
  • North West Florida Home Inspectors Association (NWFHIA)

Mark Spitznagel, PE, LEED AP

Mark earned his B.S. in Mechanical Engineering in 1981 from Pennsylvania State University. He then joined the United States Navy as an officer in the Civil Engineer Corps where he spent 20 years managing construction, designing facilities, and working as an environmental engineer in America and five foreign countries.

John Spitznagel, PE
Electrical Engineering, Mechanical Engineering

John earned his B.S. in Electrical Engineering from the University of West Florida and has been with LandMark since 2010. John’s areas of expertise are in electrical system designs, lighting designs and mechanical system designs.

Larry Scapecchi, PE
Civil Engineering, Construction Management

Larry earned his B.S. in Civil Engineering from the University of South Alabama in 2011. He served in a variety of construction roles over the last 8 years from carpenter to job foreman. He was employed at LandMark Engineering in December of 2011. Larry’s areas of expertise are in civil engineering designs, structural engineering designs, and construction management.

Laura Spitznagel
Electrical Engineering, Mechanical Engineering

Laura earned her B.S. in Electrical Engineering from the University of West Florida and has been with LandMark since 2015.