1351 Jefferson StreetSuite 301, Washington, MO 63090  Main Office: 636.283.0621
Follow Us

21 Design Group / Engineering and surveying


Based in Washington, Missouri with a focus on projects in midwest United States, 21 Design Group is committed to providing quality civil engineering and land surveying to our clients at a reasonable cost. Our staff is motivated to provide you with the most extensive service for your bottom dollar.

The interaction between our engineers, and designers broadens our perspective of complex projects and provides our team the depth of expertise to identify critical engineering constraints early in the project and to create innovative solutions. We provide engineering services throughout all phases of a project and we seek to incorporate the benefits of natural systems into our designs.

Welcome to 21 Design Group

EnginEering and surveying

With experience across much of the Midwest and through the use of state-of-the-art technology, an expert staff, and precise planning and mapping, 21 Design Group delivers and executes engineering, surveying, and design projects with your desired results. Whether your project is in construction support, surveying and mapping, civil site design, potable water, wastewater treatment and conveyance or collection or transportation improvement, 21 Design Group's engineering and consulting services are available to ensure project success.

View more


Our firm can be present for any aspect of construction necessary to provide quality control.

Get Construction Support Details Here



surveying and mapping

Our extensive experience in land surveying allows us to deliver a quality and reliable service to our clients.

 Get Surveying and Mapping Details Here



civil site design

Our staff has comprehensive expertise in providing the right civil site design to every individual project.  

Get Civil Site Design Details Here




Our firm has extensive experience in all aspects of potable water design including storage, distribution, and supply.  

Get Potable Water Details Here



wastewater treatment

Due to ever-changing technology, our staff strives to sustain the most current wastewater treatment and wastewater collection knowledge to keep our clients in compliance.   

Get Wastewater Treatment Details Here


Transportation Improvements

Transportation Improvements

Be it, roadway layout and design or ADA accessibile pathways, we have an innovative approach grounded by sound principles.   

Get Transportation Improvements Details Here


We would love to hear about your project or answer any questions you have about 21 Design Group.  Please complete this form for a quick response.


Sewer Grants 

5 Reasons to choose 21 Design Group CTA 



Go to top

21DG Green Gray Grid BG7