In the vicinity of Tysons, Virginia, which in the 1940s was a small farming community called Tysons Corner at the crossroads of Route 7 and Route 123 in Fairfax County, Hazel saw the potential for large-scale development. The future Capital Beltway, a project envisioned since the early 1950s, and for which Hazel had been involved acquiring land for, was finally under construction as the 1950s came to a close. Planned to encircle Washington, D.C. roughly 10 miles out, the road would pass near Tysons Corner. Working closely with developer Gerald T. Halpin, who had purchased more than 100 acres in Tysons in 1962, Hazel was able to get the land rezoned for mid- and high-rise commercial development. The first buildings in Tysons went up soon afterward, mainly catering to defense and national security contractors involved in providing services to the Central Intelligence Agency, which had relocated in 1961 to the Langley area of nearby Mclean, and to the Pentagon in nearby Arlington. Other businesses soon followed their lead.