Civil Engineering • Land Planning • Surveying • Permitting
Request a Consultation
CAS Engineering
Communication  •  Coordination  •  Commitment

Facebook Instagram
Follow us on Facebook
and Instagram!

A Big House With a Big View

Many people will remember 3030 Chain Bridge Road as the home of the late Peggy Cooper Cafritz, a prominent supporter of arts and education in DC. Fire destroyed the Cafritz home in 2009, along with a substantial art collection. CAS Engineering-DC was retained to explore various development options. Many different scenarios were analyzed, taking into account the challenges of steep topography and required tree preservation. Ultimately, it was decided to subdivide the property into one large lot at 3030 Chain Bridge Road and two smaller lots on University Terrace. CAS Engineering-DC helped shepherd the project through the subdivision process and all subsequent civil engineering and permitting approvals. This stunning home, since completed, compliments a one-of-a-kind 38,822 square foot lot with commanding views, a pool, and separate pool house. We are proud to have been part of the design team led by Banks Development and including Jones Boer Architects and Richard Arentz Landscape Architects.

In 2017, 3030 Chain Bridge Road was awarded the prestigious John Russell Pope Award - awarded every two years by The Institute of Classical Architecture & Art. The award recognizes excellence in classical architecture, artisanship, interior design and landscape architecture. The award is named for John Russell Pope, 1874-1937, best known as the architect of the Jefferson Memorial and the National Gallery of Art in Washington, D.C.

2018 Greater Potomac Golf Classic

We are proud to have sponsored breakfast and lunch at the 18th Annual Greater Potomac Golf Classic at Whiskey Creek Golf Club on June 8, 2018. This tournament benefits the JARC Memorial Fund, which provides funding to charities such as Brainy Camps - Camp New Friends, Children’s Tumor Fund, NF Tumor Foundation, and Hospice of Frederick County. This year 116 golfers participated in the tournament which raised $30,000 for the fund. Once again the tournament co-sponsors were Fine Earth Landscape, Inc., and TNT Services Group. As usual the weather was great; the prizes were top-shelf, and the course was in excellent condition (despite the torrential rains leading up to the event). Golf tournament proceeds to date exceed $455,000.

The 19th Annual Greater Potomac Golf Classic has been scheduled for June 14, 2019. We hope you will consider joining us for our final two years as we wind down this wonderful endeavor. Our final golf tournament will be held in 2020, marking the end to a very successful 20 year run. To participate, please contact

Project Case Study - Swampoodle

Swampoodle - not a typo, and the name has nothing to do with poodles, specifically - is a new dog park in DC's super-hot NoMa neighborhood. This area of NoMa was previously known as Swampoodle, as derived in the 1800s from "swamp" and "puddle", due to its proximity to Tiber Creek (long ago piped and buried by an earlier generation of civil engineers). This project was a welcome change of pace for CAS Engineering-DC. Permit approvals were initially obtained by our team for a 7-story apartment building. The property was subsequently purchased by the NoMa Parks Foundation. We joined the team to work on our first dog park, which is currently under construction and should be open this summer. [Swampoodle Park].

Project Case Study - Garfield Street, NW

This property was bypassed by builders and developers for years due to the challenging topography. The site originally sloped 18 feet down from the road towards a storm drain culvert; it then climbed 52 feet to the rear property line. Basically, it looked like a huge hole in the ground ... because it WAS a huge hole in the ground. In 2016, Eagle’s Nest LLC teamed up with Claude C. Lapp Architects and CAS Engineering-DC to develop this 41,000 square foot site in a Tree/Slope Protection Overlay Zone. Our role was to subdivide the property into three lots, design the site grading and stormwater management facilities, and to secure the necessary permits. The Lapp Team provided innovative and flexible architectural design with extra deep cellars and foundations. Despite a multitude of design, permitting, and construction challenges, the finished homes blend in seamlessly and have become a fabulous addition to the neighborhood.

Airbnbeware of New Rules in MoCo

Last October, Montgomery County passed new legislation governing short term residential rentals (ZTA 17-30). In a nutshell, short term residential rentals are still allowed as a "Limited Use" in most Agricultural and Residential Zones. However, now such uses must be licensed under Chapter 54, Transient Lodging Facilities. Overnight guests are limited to 6 adults. For your reading pleasure, click here: [ZTA 17-03]

DC Pre-Purchase Feasibility Studies

What will DDOT think about your proposed driveway? Are there heritage trees that can't be removed ... right where you want a pool? Do recent zoning interpretations impact your buildable area? Leverage our experience in D.C. to assist you in evaluating sites for future development. Send an Email or call CAS Engineering-DC, LLC at 202-393-7200 to discuss your next potential project today!

Subscribe Today to Receive Our Next Issue Via Email!


Have an idea for a future article? Email us at

Past Editions
July 2019
February 2019
July 2018
February 2018
October 2017
August 2017
February 2017
December 2016
September 2016
June 2016