Many buildings in the historic district date from Leesburg's 18th-century development. One type, a one-story, side-gable cottage constructed in either brick or stone or occasionally wood can be found on Loudoun, Wirt and Liberty Streets. There are also log structures such as the Stephen Donaldson Silversmithy, which is now part of the Loudoun Museum. Federal buildings, often two-story brick structures, reflect more delicate detailing and proportions characteristic of the Adam style. General George Marshall retired to Leesburg, to one of the town's Federal brick country houses. Interspersed among the Georgian and Federal structures in the historic district are many buildings from the second half of the 19th century, including the Italian Villa residence built in 1857 at 306 West Market Street and the three-story Italianate style home at 205 North King Street, built in 1848. Also noteworthy are the late19th-century commercial structures along King and Market Streets.
The Leesburg Historic District is located in the original area of town, at the intersection of Rte. 7 and Rte. 15. Leesburg. The Visitor Center is located in the Jewell Building at 222 Catoctin Circle, SE Suite 100, Leesburg. The Visitor Center is open Monday-Sunday 9:00 am - 5:00 pm, and can be reached at 703-771-2170 and 800-752-6118.