[7] A referendum of local electors was held later in 1927 on whether to change the urban district's name from Heston and Isleworth to Hounslow.

A significant majority of those who voted supported the change of name (6,778 in favour, 3,775 against), but it was vetoed by Middlesex County Council.

Most were relatively modest, with the most significant being that the borough absorbed nearly half of the abolished parish of Cranford, including the village.

They were: Tierced in pairle Azure, Sable and gules in chief two wings conjoined argent to the dexter a cross bottonée or and to the sinister a lion rampant guardant per fesse of the last and or the fourth.

The gold and silver lion came from the arms of Hounslow Priory, founded in the thirteenth century by the Trinitarian Brothers of Redemption, on the site now occupied by Holy Trinity Church.