Yes, listed buildings can be rewired, and it's a common and often necessary piece of work, particularly on properties still running older wiring systems that no longer meet current safety standards. The key difference from a standard rewire is how the work is planned and routed, not whether it's possible at all.
In a modern building, first fix electrics are chased through stud walls and above suspended ceilings with little consequence. In a listed building, the same routes often mean chasing through solid lime plaster, decorative plasterwork, original lath and plaster ceilings, or historic floorboards, any of which can cause real, sometimes irreversible, damage if the routing isn't planned properly in advance.
Generally, no, the act of rewiring on its own usually doesn't require consent. But the process of chasing cable routes through walls and ceilings can, particularly where it affects decorative plasterwork, cornicing, panelling, or other features that are part of what makes the building's interior significant. This is worth checking specifically for your property and proposed routing before work starts, since it depends heavily on what's being disturbed, not on the rewire itself.
A proper approach starts with identifying which walls and ceilings have significant decorative or historic fabric that should be avoided, mapping the least disruptive practical route for new cabling, and coordinating with other trades (particularly plastering and joinery) happening on the same project, so routing decisions are made before finishes are applied rather than needing to be cut into completed work afterwards.
Wherever cabling has to pass through lime plaster or render, making good with lime rather than gypsum matters, since a gypsum patch in a lime wall behaves differently and often fails or looks visibly different from the surrounding original finish.
Yes. An Electrical Installation Condition Report identifies what's currently unsafe and needs addressing versus what can reasonably be left, which helps scope a rewire (or partial upgrade) realistically rather than assuming everything needs replacing. On some listed buildings, a full rewire isn't necessary, targeted upgrades to specific circuits might be sufficient, which an EICR will clarify.
Rewiring a listed building is routine work for an electrician experienced with period property, the difference from a standard rewire is entirely in the planning and care taken with routing and making good, not in whether the work itself is permitted.
Where chasing into a wall or ceiling would risk significant historic fabric, surface mounted conduit or period appropriate fittings are sometimes a better option than forcing a concealed route, particularly on ceilings with important decorative plasterwork. It's a trade off between visual impact and preservation of original fabric, and worth discussing openly rather than defaulting automatically to concealed wiring everywhere.
Because routing decisions need to be made before finishes are applied, electrical planning should happen early in a wider refurbishment, ideally alongside the initial condition survey, not treated as a separate task to slot in once other trades are already underway. Getting this sequencing right avoids the common, expensive mistake of finishing a room and then having to cut back into it because an electrical route wasn't properly planned in advance.
