Yes, and the list of things standing in your way is short enough to read in one sitting. Twenty buildings in the whole area are listed. None of them at the highest grade. One conservation area. For most owners here, extending is a question of budget, boundary and builder rather than of heritage, which is not something a buyer in a prettier Devon town gets to say.
Take the listed stock first, because it carries the heaviest restrictions. Twenty buildings are listed across this area: 18 at Grade II, 2 at Grade II*, and none at Grade I. Listing covers the whole building, inside as well as out, along with anything fixed to it and often structures within its curtilage, which is the detail owners tend to discover at the moment they want to move a staircase or swap a window. Listed building consent sits alongside planning permission rather than replacing it, and it bites on work that an ordinary house does without telling anyone. Twenty buildings is a small population in a town this size, so the realistic odds are that none of this applies to the house being viewed. Confirming that takes one search and saves an expensive misunderstanding.
There is one conservation area, covering part of Holsworthy. Inside its boundary, control tightens on things that pass without comment elsewhere: demolition of walls and outbuildings, certain external alterations, and work to trees, which requires notice before anyone starts up a chainsaw. Proposals are also judged more closely on how they read from the public street. None of that makes altering a home impossible inside the line, and plenty of conservation-area extensions get built every year across the country. It does mean the design brief starts with a constraint rather than a blank sheet, so establishing which side of the boundary an address falls on belongs at the start of the process rather than after the architect has been paid.
As for whether people actually get things done here, the planning register answers that better than any opinion. The area produced 652 planning applications between April 2024 and June 2026, with 268 of them in the most recent twelve months. That is volume and recency only, with nothing claimed about how each one ended, and it is still the most useful evidence available: altering property in Holsworthy is routine activity rather than a rare act of defiance. Somebody in this town is filling in a form about a rear extension right now.
For the practical version, most homes here are neither listed nor inside the conservation area, which puts them under the ordinary permitted development rules that govern the rest of England. Modest rear extensions, loft conversions that stay within the existing roof shape, and outbuildings within the usual size limits generally proceed without a full application, subject to the conditions attached to those rights and to whether previous owners have already used them up. Anything larger, anything to the front, and anything on a listed or conservation-area property needs consent. The sensible sequence is to check the constraints on the specific address with the district council at Torridge, then design, then build, rather than the order most people are tempted into.
Freedom to alter a home here lands in the middle: unremarkable rules for the large majority of houses, and a real heritage constraint for the handful inside the conservation area or on the list. Establish which of those two situations the house is in before you start picturing bifold doors, because that single fact decides whether the project is a fortnight of paperwork or a negotiation.