[4] In 1930 a county review order merged Ashton upon Mersey Urban District into Sale UD.

[4][5] In December 1933 a petition was submitted to the Privy Council praying for a charter of incorporation to raise the urban district to the status of a municipal borough.

The petition was successful, and the charter was presented by Sir William Bromley-Davenport the Lord Lieutenant of Cheshire on 21 September 1935.

The latter year saw the last election before the borough's abolition, and the final council was hung, with sixteen Conservatives balanced by ten Labour and six Liberal members.

[10][11] Sale Urban District Council was granted armorial bearings by the College of Arms by letters patent dated 23 September 1920.

The Latin motto adopted was Salus et felicitas or "health and happiness": the first word was a pun on the name of the town.

An additional grant of heraldic supporters was made on 15 August 1945 to commemorate the tenth anniversary of borough status:[12][13] On the dexter side a unicorn argent, armed and unguled Or, maned and tufted azure, and on the sinister side a badger proper, each gorged with a wreath of salllow twigs also proper.The unicorn represented Ashton-upon-Mersey, and was derived from the arms of the Carrington family.