For most homes in Paulton, the answer is yes, and with more freedom than a lot of places allow. The village carries eighteen listed buildings and a single conservation area, which sounds like a lot of red tape until you notice how few of the roughly 2,700 homes here are actually caught by it. Nothing sits in the very top listing grade. There are no scheduled monuments to plan around either. Unless your house is one of the specific protected addresses, the heritage rules are somebody else's problem, and the shape of your kitchen is your own business.
Listing is the tightest constraint, and it is narrow by design. Of the eighteen listed buildings, just one holds the middle grade and the other seventeen sit in the standard grade that covers the bulk of protected homes across England. If you own one of them, the rules bite hard: alterations inside and out need listed-building consent, and that extends past the obvious extension to windows, doors, and anything that touches the character of the place. It is the kind of ownership where you learn to love your existing floor plan, because changing it turns a weekend job into a formal application. For the overwhelming majority of Paulton, though, none of this applies, because the listed count is eighteen and the housing stock runs to thousands.
The conservation area is the softer catch, and it covers Paulton itself as a single designation. Inside its boundary, the ordinary freedoms tighten a little: some works that would be automatic elsewhere want consent first, and the council takes a closer interest in how the street looks as a whole rather than just your slice of it. This is not the same as being listed, and it is a long way from being banned from touching your own house. It mostly means the plans get a second reading and the materials get a glance, rather than a flat refusal. The trade for that mild inconvenience is that your neighbours face the same rules, so nobody bolts something regrettable onto the terrace and calls it a feature.
In practical terms, the split is clean. A standard house outside the conservation boundary and off the listed register keeps the usual permitted-development freedoms, which is to say a good deal of straightforward extending happens here without a planning drama. A house inside the conservation area, or one of the eighteen on the list, needs to check first and assume less. The honest move for any specific property is to confirm which side of those lines it falls on before you commission the architect, because the difference between the two is the difference between a build and a battle.
Paulton scores well on the freedom to alter your home: a small heritage footprint, no top-grade or monument constraints, and a single conservation area that nudges rather than blocks. For most owners here, the extension is a question of budget and taste, not permission.