In order to enter the state parliament, one party must reach the four percent hurdle or obtain a mandate in a constituency.

The Lower Austrian parliament dates back to the medieval meetings of the estates, the so-called Landtaidinge.

In 1513, a building was purchased in what is now Herrengasse in Vienna, the so-called Palais Niederösterreich, where the state parliament met until 1997.

[5] The great power of the estates in the 16th century was pushed back more and more in the age of absolutism, but the state parliament was never abolished.

On 20 March 1919, a new electoral law was enacted which introduced universal, equal, direct and secret suffrage for all citizens residing in Lower Austria without distinction of sex.

The first election after this right to vote took place on 4 May 1919 and brought an absolute majority for the Social Democratic Workers Party.

[11] For this reason, the separation of Vienna and Lower Austria was agreed in the Grand Coalition and adopted by the Constituent National Assembly on 1 October 1920.

[13] In order to coordinate the division of the previous state property, the joint Lower Austrian parliament, if necessary divided into the two curia Vienna and Lower Austria Land, was formally preserved until the end of 1921,[11] but had almost nothing more to decide, since the leading politicians of the two new Landtags did not want to maintain the commonality in part legally either.

The abolition of the remaining commonalities was decided in Vienna and Lower Austria by their new legislative bodies at the end of 1921.