Bolderāja is a neighbourhood of Riga, the capital of Latvia. It is located on the left bank of the Daugava River, in Kurzeme District. Bolderāja probably began as a fishing village. The area has been inhabited since at least the 10th century and possibly for a longer period, however there is no firm evidence because of variations in the course of the Daugava River and the shifting of sand dunes. The area was made into a Polish customs post in 1606. The wooden houses built during the Polish era in 1603 may be the oldest in Riga. Bolderāja was the last district added to the city of Riga in 1924.