Park/Playground Renovation Project

Walter Pierce Park

SLS will partner with Natural Resources Design to provide existing conditions survey data in support of planned improvements, including new playground equipment and park amenities, improved lighting and signage, new dog park equipment and stabilization/erosion control.

The project is being operated by DC Department of Parks and Recreation (DPR) under the Office of Planning and Capital Projects (OPCP), whose aim is "new construction and the rehabilitation of existing structures to provide safe, attractive and operable facilities".  Additional project management is provided by the Department of General Services (DGS).

Find out more about this great project here:



Tree planting/SWM retrofit project

Dupont Tree Plaza

SLS provided existing conditions survey data in support of planned tree planting, Storm Water Management (SWM) and bicycle storage facilities along Massachusetts Avenue west of Dupont Circle.

The project is part of a long-term plan by Restore Mass Ave (RMA) to "promote restoration of the complete historic landscape, creat(e) green space for the city...and advance recognition of Embassy Row as a national landmark."

Find out more about DesignGreen and RMA's great work here

ADA Access Retrofit

American University Residence Halls

Work has now begun on the installation of curb cuts which would provide access to McDowell and Leonard Halls as well as connect the sidewalk between the two buildings for wheeled mobility devices.

SLS provided existing conditions survey data in support of the design of ramps which must be constructed to strict tolerances under the ADA (Americans with Disabilities Act of 1990) Standards for Accessible Design 2010.

Find out more about the ways in which AU is working to make its campus more accessible -

School Greening/LID Project

DOEE RiverSmart Schools

**UPDATE: Construction is now complete at the three RiverSmart school sites, and as-builts are underway.**

SLS provided existing conditions information and site as-builts for three DC Public School sites in support of planned Low Impact Development (LID) schoolyard greening projects under the DOEE RiverSmart program.

This innovative program aims to reduce the volume and improve the quality of stormwater run-off into the Chesapeake Bay via DC's built environment by "incorporating landscape design principles that create habitat for wildlife, emphasize the use of native plants, highlight water conservation, and retain and filter stormwater runoff. They have the added benefits of an outdoor classroom that supports effective teaching practices and promotes student learning.

Creating wetlands, ponds and meadows or planting trees, shrubs and gardens can add beauty and diversity to a site, while fostering ecological awareness and "big picture" thinking in those who participate. These projects will teach gardening and community service skills, improve the aesthetics of school grounds, and build student and community pride."

Community Meeting/ Event Space Renovation

Black Workers & Wellness Center

We are delighted to offer our assistance with renovations of the ONE DC Black Workers & Wellness Center.

The Center is a member-led community & wellness space in Anacostia that builds racial & economic justice through popular education, promotion of sustainable employment & the incubation of economic alternatives.

On Friday, December 22nd, 2017, after over a year and a half of grassroots fundraising, ONE DC successfully purchased the former United Black Fund, Inc. building at 2500 MLK Jr Ave SE for $1.2 million and is now seeking donations for vital building renovations.

To donate or find out more about ONE DC's great work, go to:



Affordable Housing Renovation

Maycroft Apartments

SLS provided construction staking & co-ordination for a major renovation of 64 affordable dwelling units in tandem with Jubilee Housing & DC Department of Housing & Community Development (DHCD). The project will utilize funds from the DHCD Housing Production Trust Fund (HPTF) and the units will be reserved for tenants under 60% of area mean income (AMI).

Tenant-owned Building Renovation

Barlee Cooperative Apartments

We are pleased to have the opportunity to work with Mi Casa as they manage the renovation of a 37-unit, tenant-owned apartment building in Petworth. The building was purchased by existing tenants in 2016 under the DHCD Tenant’s Opportunity to Purchase Act (TOPA) and utilizing funding from its Housing Production Trust Fund (HPTF). The renovations will include long-needed modernization of building systems and, most importantly, all of the units will remain affordable, with 25 designated for residents under 50% area mean income (AMI) and 12 under 80% AMI. Click to find out more about Mi Casa’s great work the TOPA program

Affordable Property Rehabilitation

Historic Anacostia Properties

SLS provided existing conditions surveys for three residential properties located in the Anacostia Historic District in partnership with The L'Enfant Trust. The properties were purchased from DHCD and "are extremely distressed and have been vacant for decades....(but) cannot be razed and must be restored to historic preservation standards.

As a non-profit with the mission of preserving and revitalizing DC’s historic neighborhoods, the L’Enfant Trust will act as a developer for historic properties via its Historic Properties Redevelopment Program. The Trust will take on the rehabilitation costs that are not economically feasible for individuals or for-profit developers, using philanthropic loans, grants and donations to close the funding gap...Once rehabilitation is finished the properties will be sold as workforce housing to qualified buyers earning at or below 120% of the median family income, targeting teachers, nurses, firefighters and employees of the District government".

The L’Enfant Trust is celebrating 40 years of preserving the architectural heritage of Washington, DC and SLS is delighted to be able to assist with this invaluable work. More information about the Trust is available at


Hospital Building Expansion & Utility Relocation

Washington DC VA Medical Center

SLS provided existing conditions topography and utility surveying for Phase I utility relocation ahead of a major Emergency Department Renovation project at this facility operated by the U.S. Department of Veterans Affairs.