In May–June 1996, with the creation of the East Wanneroo Development Area, Cell 6 was identified as a high priority for development, and was divided into western and eastern sections corresponding to modern Madeley and Darch respectively. On 10 September 1997, the City of Wanneroo resolved to name the locality Kingsway after the main east-west road running through it, and to name the area east of the proposed Skeit Road as Madeley. The Geographic Names Committee (GNC) approved Madeley, but rejected Kingsway as being too similar to Kingsley. The City, by this stage administered by commissioners, met on 17 February 1998, and decided to use Madeley for the western area, and to honour another settler family in naming the eastern section Darch. On 5 March 1998, the name Darch was approved by the GNC, formally releasing the name Madeley. The City applied for the name Madeley on 28 April 1998, and it was granted at the GNC's meeting on 19 June 1998.
As a fairly new suburb, Madeley as yet has no clear political direction, with the Liberal party winning more than half the booth vote at both the 2004 and 2007 federal elections, but the Australian Labor Party doing the same at the 2005 state election. An emerging trend is a higher vote than the regional average for the Christian Democratic Party and Family First. The following figures are for booths in neighbouring Darch which serve both suburbs: