Arlington, VA,  — SIGAL Construction Corporation recently completed renovation of the south wing of Letts Hall at American University. The SIGAL team used fast-track techniques to meet an accelerated schedule of 79 calendar days, while the lowest level and adjoining buildings remained occupied.

Located on the Southside of campus, Letts Hall is a 74,000 SF freshman dorm built in 1964. Last updated in 1993, the building was modernized to accommodate a more technology-oriented student body.

Building system upgrades included the replacement of the main ventilation system with two 50-ton Air Handling Units and Fan Coil Units throughout, the replacement of all electrical distribution equipment and feeders, and new electrical and communications wiring. All rooms were equipped with occupancy sensors for automated controllability of both lighting and cooling, and increased energy efficiency for the overall building.

The renovation revitalized the dorm with the replacement of fixtures and furniture, expansion of lounge areas, new bathrooms, new finishes, built in furniture refurbishment, new doors, and additional lighting in the corridors. The renovation also included the creation of a residential suite with private bathroom and laundry for the new Resident Director of Letts Hall. The changes provide a welcoming, pleasant environment for incoming students.

The most visible portion of the renovation is the lobby, which received a whole new look including a new reception desk with radial wood bulkhead, and mosaic tile front illuminated by decorative cove lighting, imported floor tile, refurbished marble walls, and prefabricated poured epoxy terrazzo top.

The transformation of Letts Hall into a modern, light and wired facility will help its residents make the transition into college.

About SIGAL Construction Corporation
Founded in 1977, SIGAL Construction Corporation (SIGAL) is one of Washington’s premier general contractors, known throughout the industry for its dedication to sustainability, high quality, cost consciousness, excellent client relations, and the ability to successfully complete unique and challenging projects. A founding partner of USGBC, SIGAL offers superior general contracting, preconstruction, construction management, design/build, and sustainability services. SIGAL’s diverse project portfolio includes institutions of learning (K-12 and higher education), Federal and municipal agencies, law firms, corporations, hotels, technology firms, biotech companies, healthcare providers, multi-family housing, and associations/nonprofits. To learn more about SIGAL Construction Corporation, please visit


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Melyssa Leibowitz, Marketing Coordinator
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