When was the last construction on Buda Castle?
Buda Castle
2015
In 2008 an international consortium began to build an underground garage for 700 cars under the former Csikós Court. The developer was granted permission to demolish a 4.5-metre-long (15ft) section of the 15th-century castle wall. The demolition was carried out in spite of criticism from archeologists and the public.[13] The area had been previously excavated by archeologists, who discovered many important finds, including medieval children's toys and a tooth from the pet leopard of King Matthias Corvinus. Additionally, the area outside the inner walls was used as a garbage dump during the 15th–17th centuries.[14] However, financial difficulties interrupted the construction of the garage in 2009; work resumed for a short time in November 2011 but stopped again after the completion of the concrete basement slab.[15] The government granted 1.3billion forint for the completion of the project in 2015 after the half-built garage was bought by the state. 
[16]
The castle courtyard was also used as the setting for Katy Perry's 2010 music video, "Firework", part of her Teenage Dream album.