The Statute of Autonomy does not explicitly establish one capital. Initially the Cortes were installed provisionally in Burgos; the possibility of fixing a capital in Tordesillas was also discussed, although the final decision was to install the Cortes provisionally in the castle of Fuensaldaña.

Finally, through the autonomous laws 13/1987 and 14/1987, approved simultaneously, it was decided respectively to establish that the Junta de Castilla y León -the government of the Community-, its president, and the Cortes -the legislative body- had its headquarters in the city of Valladolid; and that the Upper Court of Justice of Castile and León had its headquarters in Burgos. The main autonomous institutions are the following:

Junta de Castilla y León (Regional Government of Castile and León), with headquarters in Valladolid, is the regional executive, formed by the President of the Regional Government, the vice presidents and the councilors

Cortes de Castilla y León (Parliament of Castile and León), based in Valladolid

Tribunal Superior de Justicia de Castilla y León (Upper Court of Justice of Castile and León), based in Burgos