In 1982 ten roads in Mapesbury were designated a Conservation area. The roads are: Anson (Broadway to Chichele Road), Dartmouth, Dawlish, Exeter, Keyes, Hoveden, Lydford & Mapesbury (to the railway), Teignmouth, Walm Lane (including side from the station to Broadway).
Although many of Mapesbury’s residents are not included, their properties benefit substantially from bordering a conservation area. The conservation area is subject to Article 4 direction which controls what can be built. MapRA led a campaign to strengthen this to protect back gardens from development. The conservation guidelines are available from Brent conservation area site.