Yes, for most homes in Potton, extending is an ordinary planning job with no heritage hurdles in the way. A few dozen buildings are listed. None of the town is a conservation area. The neighbours are applying for planning permission at a steady clip. The ground beneath is where the care goes, and that is a matter of foundations, not paperwork.
Historic England lists 41 buildings in Potton: one at Grade I, none at Grade II*, and 40 at Grade II. Listing protects the whole building, inside and out, so changing a listed home needs listed building consent on top of any planning permission, and alterations a normal house could make without asking can need it. No conservation area covers the town, so the other homes carry no extra layer of control on top of the usual rules. Potton was largely rebuilt after the Great Fire of 1783, and the protection stays with the older fabric while the post-war closes around it get treated as houses.
Central Bedfordshire Council received 687 planning applications for Potton between April 2024 and June 2026, and 323 in the 12 months to June 2026. Those figures cover every kind of application, from extensions to new signage, and they say nothing about how many were approved. What they do show is a town where altering a house is a normal activity, with a planning notice on a lamp post about as surprising as a bin day.
The ground is the part to take seriously. The British Geological Survey rates the shrink-swell hazard across Potton at class 3, and every part of the area reaches that class. Shrink-swell is the tendency of clay-rich ground to swell when wet and shrink as it dries, which moves foundations. For an extension that usually means deeper foundations than a builder might quote by habit, a careful look at nearby trees, and a structural engineer's view before the drawings are final. That decides how much the extension costs, and it rarely decides whether it gets built.
For an unlisted house in Potton, many single-storey rear extensions and loft conversions can go ahead under permitted development, the national rights that let householders make set changes without a full application, within limits on size and position. Anything bigger, or any change to a listed building, goes to the council. Some newer estates had those rights taken away by a condition on the original planning permission, so check the house's planning history on the council's planning portal for any such condition, because that one line decides whether the loft needs an application.
Potton is one of the freer places to change a home: light heritage control, plenty of neighbours doing the same, and a geology that costs extra in the foundations without standing in the way.