Valendas is a former municipality in the district of Surselva in the canton of Graubünden in Switzerland.

Of the rest of the land, 1.8% is settled (buildings or roads) and the remainder (27.9%) is non-productive (rivers, glaciers or mountains).

[6] The age distribution, as of 2000[update], in Valendas is; 40 children or 13.6% of the population are between 0 and 9 years old and 38 teenagers or 12.9% are between 10 and 19.

[3] The historical population is given in the following table:[2] The Türelihus and the Haus Joos and attached barn are listed as Swiss heritage sites of national significance.

In 1554 it was expanded, this expansion was known as the Renaissance phase, with a spiral staircase within a tower and a stable was added to the north side.

In 1994, the first attempt to renovate this building ended with only the addition of a temporary roof.

[9] Valendas-Sagogn station, on the line of the Rhaetian Railway that links Chur and Disentis, lies some 120 metres (390 ft) below and 1.2 kilometres (0.75 mi) distant from the village of Valendas.