The World Record of ‘largest administrative building’ in the world has been achieved by the Palace of the Romanian Parliament from Bucharest, Romania.

The total floor area of the building is more than Three Hundred Sixty Thousand (360,000) square meters and houses both the chambers of Romanian Parliament. The building was designed by Architect Mrs. Anca Petrescu. The Palace of the Roman Parliament also has the distinction of being the world’s most expensive administrative building and the world’s heaviest building. The structure is 270 meters long, 240 meters wide, 86 meters high and 93 meters underground.