[9] Peels were built in Scotland, Northumberland, Cumberland, Westmorland, County Durham, the North Riding of Yorkshire, and as far south as Lancashire, in response to the threat of attack from the English, Scots and the Border Reivers of both nationalities.
In the upper Tweed valley, going downstream from its source, they were as follows: Fruid, Hawkshaw, Oliver, Polmood, Kingledoors, Mossfennan, Wrae Tower, Quarter, Stanhope, Drumelzier, Tinnies, Dreva, Stobo, Dawyck, Easter Happrew, Lyne, Barnes, Caverhill, Neidpath, Peebles, Horsburgh, Nether Horsburgh Castle, Cardrona, Kirna(Kirnie), Elibank.
By an Act of the Parliament of England in 1455, each of these towers was required to have an iron basket on its summit and a smoke or fire signal, for day or night use, ready at hand.
[11] Apart from their primary purpose as a warning system, these towers were also the homes of the lairds and landlords of the area, who dwelt in them with their families and retainers, while their followers lived in simple huts outside the walls.
A pele tower in Hellifield, North Yorkshire featured in an episode of Grand Designs showing the conversion from a derelict state to a home and a bed-and-breakfast business.
[17] Canons Ashby House incorporates one of only a few pele towers constructed in the Midlands; it owes its existence to the settlement of Cumbrian sheep farmer, John Dryden, in the county of Northamptonshire.