The local constraint next to the town is Saltaire. Bradford Council records that "The Saltaire Article 4 Direction was made on 21 December 1976. It removed permitted development rights for external alterations and extensions (including porches) to residential properties within the defined area", and that "All of the properties within the defined area became listed buildings in 1984. This means that they now have a greater degree of protection which supersedes the controls in the Article 4 Direction, as listed building consent is required for all alterations and extensions to the properties."
Saltaire is one of the 60 conservation areas Bradford Council lists, under its Bingley and Shipley grouping, alongside Wrose, Baildon, Baildon Green, Baildon Station Road, Bingley, Cullingworth, Eldwick Beck, Esholt, Micklethwaite, the Leeds Liverpool Canal and Wilsden. The council states that "There are 6 Article 4 Directions within the Bradford district", and three of those remove permitted development rights for exterior painting in defined areas the council names as Apsley Crescent, Little Horton and Manningham, which it lists under Bradford outer areas rather than under the Bingley and Shipley grouping.
The national wording a Shipley customer meets first is the Planning Portal's: "You do not need to apply for planning permission for repairs, maintenance or minor improvements, such as painting your house", while in a Conservation Area, a National Park, an Area of Outstanding Natural Beauty or the Broads "you will need to apply for planning permission before cladding the outside of your house with stone, artificial stone, pebble dash, render, timber, plastic or tiles". The Portal adds that "If you live in a listed building, you will need listed building consent for any significant works whether internal or external".
We would explain how you check the conservation boundary, any Article 4 direction, the listed building position and the proposed work with Bradford Council before confirming whether permission is needed.