United States Capitol The west front of the United States Capitol in 2013 Show map of Central Washington, D.C. Show map of the US Show all General information Architectural style American Neoclassicism Town or city Capitol Hill, Washington, D.C. Country United States of America Coordinates 38 ° 53 ′ 23.29 '' N 77 ° 00 ′ 32.81 '' W ﻿ / ﻿ 38.8898028 ° N 77.0091139 ° W ﻿ / 38.8898028; - 77.0091139 Coordinates: 38 ° 53 ′ 23.29 '' N 77 ° 00 ′ 32.81 '' W ﻿ / ﻿ 38.8898028 ° N 77.0091139 ° W ﻿ / 38.8898028; - 77.0091139 Construction started September 18, 1793 Completed 1800 Client Washington administration Technical details Floor count 5 Floor area 16.5 acres (6.7 ha) Design and construction Architect William Thornton, designer (See Architect of the Capitol) Website www.capitol.gov www.aoc.gov/us-capitol-building
when was the capital built in washington dc
1800