© 2019 by DEMARR Engineering, PLLC. 

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Land Surveying Northern Virginia

Every engineering plan depends on accurate survey data. Let's see what we have to work with by making an Existing Conditions Plan for your site.... Click to Read More!

Civil Engineering Northern Virginia

Are you excited about your Architect's building plans? We'll create the full Site Plan set for your new home or building.... Click to Read More!

Construction Management Northern Virginia

Managing a construction project can be time-consuming and overwhelming. Let our experts handle it for you.... Click to Read More!



More than just a plan production firm, DEMARR Engineering is backed by industry proven experience from DEMARR Construction, a Class A Heavy Highway Contractor Since 1989.


With this combination of engineering and construction services under one roof, we will be handling your project from the day your property is acquired to the day of your final occupancy permit. 




  • Rough Grading Plans

  • Infill Grading Plans

  • Generalized Development Plans

  • Major Site Plans

  • Underground Utility Design

  • 3D Machine Control Modeling

  • And More...



Talk to a Civil Engineer

For any inquiries, questions or commendations, please fill out the following form below: 

(Don't worry, your information will be kept confidential).

Head Office

DEMARR Engineering, PLLC

7115 Leesburg Pike Ste 215

Falls Church, VA 22043



Tel: 703-214-7220


To apply for a job with DEMARR Engineering, please send a cover letter together with your C.V. to: careers@demarr-engr.com

Talk to a Civil Engineer: 
(703) 214-7220