Search for “listed building consent cost” and the honest first answer is: the application itself costs £0. Unlike almost every other planning consent in this series, government has deliberately kept listed building consent fee-free in England, on the basis that charging for it would discourage owners from applying at all — and that's stayed true even as ordinary planning fees have gone up around it.
But that's obviously not the number you're actually after. The real cost of getting consent is everything that has to happen before you submit: a heritage statement explaining what the building is and why the proposed works won't harm it, usually some drawings or a measured survey, often a structural engineer if you're opening anything up, and — for most extensions and a lot of alterations — a separate planning application fee running alongside the free listed building consent one. Put that lot together and a genuinely typical project runs £2,000–£16,000+ in professional fees before a single brick moves, depending on scale.
I'm a building surveyor with a fair amount of listed and traditionally-built stock on my patch, not a heritage consultant or an architect, so I don't submit these applications myself. But the condition survey that sensibly comes before anyone draws up a schedule of works is very much what I do, and I get asked this cost question often enough to be worth setting out properly — including the part most cost guides skip, which is what happens if you skip the application altogether. Figures below were checked on 8 September 2026 against several architecture and heritage-consultancy practices' published 2026 pricing, cross-referenced against each other, plus the current statutory planning fee schedule.
The short answer
The council fee for listed building consent itself is £0 in every row below — what varies is the professional work needed to put a defensible application together, and whether a linked planning application (which does carry a fee) is also required.
| Scope of works | Typical cost before work starts | What's included |
|---|---|---|
| Query only — unsure if consent is even needed | £0–£400 | A written question to the conservation officer, or a formal certificate of lawfulness |
| Straightforward alteration (windows, an internal wall, a rooflight) | £1,500–£4,000 | Heritage statement and drawings; the consent application itself remains free |
| Extension or more involved works | £5,000–£16,000+ | Measured survey, heritage statement, architect, often a structural engineer, plus a linked planning fee if one's needed |
| Complex or contentious (demolition, Grade I/II*, a building at risk) | £10,000–£25,000+ | Specialist heritage consultant, planning consultant, and budget for resubmission if the first attempt is refused |
What drives the price
Whether you also need planning permission. Most extensions and a good number of external alterations need both listed building consent and ordinary planning permission running side by side — and only the listed building consent element is free. The current householder planning application fee for a single dwelling is £548, rising to £575 from 8 December 2026 under the next scheduled fee increase; listed building consent itself stays at £0 either side of that change.
The grade of the listing. Grade I and II* buildings — the higher-interest tiers — more often bring Historic England in as a statutory consultee, which tends to mean a more detailed heritage statement and a longer, more carefully argued application than a straightforward Grade II terrace would need.
How sensitive the works are to the building's special interest. Secondary glazing behind existing sash windows is a different scale of justification from removing a chimney breast or digging into an original flagstone floor. The heritage statement has to work harder, and cost more, as the intervention gets more invasive.
Whether a structural engineer is needed. Anything that opens up load-bearing or historic fabric — a new doorway, an extension junction — needs engineering input, and an engineer with genuine heritage experience typically charges more than one pricing a standard modern extension, reflecting the extra care around lime mortar, timber frames and solid walls that don't behave like a modern cavity wall.
Region. As with the rest of this series, London and the South East — my own patch included — commonly run above the national figures quoted here, partly because heritage-experienced consultants are in shorter supply and busier.
Do you actually need consent?
More often than owners expect, and for more of the building than owners expect. Listing protects the whole building — interior as well as exterior — regardless of grade, so the idea that only the front elevation or the parts visible from the road are protected is one of the more expensive misunderstandings I come across. Removing an internal wall, stripping back a fireplace surround, or swapping original doors can all need consent, not just an extension or a change to the roofline.
It also reaches further than the listed building itself. Objects and structures within the curtilage — garden walls, outbuildings, a dovecote, anything ancillary to the main building — that were in place before 1 July 1948 are generally treated as part of the listing too, even though they're not named individually on the list entry. A garage or garden wall you assumed was fair game is a common place this catches people out.
What genuinely doesn't need consent is like-for-like repair: fixing what's there using matching materials and methods, without altering the building's character. That's a real exemption, not marketing spin — but conservation officers read the line narrowly, and not always consistently between authorities, so I wouldn't talk myself onto the right side of it for anything beyond straightforward maintenance. A written query to the conservation officer, or a formal certificate of lawfulness for anything with real money riding on the answer, is far cheaper than guessing.
The real cost of getting it wrong
This is the section that makes listed building consent different from every other cost guide in this series. Executing unauthorised works to a listed building is a criminal offence under section 9 of the Planning (Listed Buildings and Conservation Areas) Act 1990, not just a planning breach to be tidied up later. The maximum penalty on summary conviction is six months' imprisonment or a £20,000 fine, or both; on conviction on indictment in the Crown Court, it's up to two years' imprisonment or an unlimited fine, or both. There's a narrow defence where works were genuinely urgent for safety, health or the building's preservation, done to the minimum extent necessary, with written notice given to the council as soon as reasonably practicable — but that's a defence for emergencies, not a fallback for “I didn't get round to applying.”
The other thing that makes this different: ordinary planning breaches become immune from enforcement after four or ten years, depending on the type of breach. Listed building consent has no equivalent immunity period at all. A change made without consent decades ago is, in principle, still enforceable today. You can apply for retrospective consent after the fact, but the council is under no obligation to grant it, and a refusal can lead to an enforcement notice requiring the building to be put back as it was — at your cost, and usually a much larger sum than getting it right first time would have been.
What I'd watch for in a quote
- Ask explicitly whether planning permission is needed alongside listed building consent. A quote that only covers the free LBC element can leave you blindsided by the separate £548 (soon £575) planning fee.
- A heritage statement written for your building, referencing its actual list entry and fabric, not a generic template with the address swapped in.
- Clarity on what's included in the survey — does it cover curtilage structures (garden walls, outbuildings) if they're relevant, or just the main house?
- Demonstrable heritage experience for any structural engineer involved, not just a general extension-and-loft specialist.
- A stated view on pre-application advice. Formal pre-app advice from the conservation officer typically costs £150–£600 and is far cheaper than redesigning after a refusal.
Questions I get asked
Does listed building consent really cost nothing to apply for? The council application itself is genuinely free in England, and that's been confirmed to be staying that way even as other planning fees rise. What isn't free is everything you prepare beforehand: a heritage statement, drawings, sometimes a survey and a structural engineer, plus a separate planning fee if the works also need planning permission.
Do I need consent for work inside my house, or only changes to the outside? Both. Listing protects the whole building, inside and out, regardless of grade — the belief that only the exterior is protected is one of the most common and expensive misunderstandings I come across.
What happens if I've already carried out work without consent? You can apply for retrospective consent, but the council doesn't have to grant it, and a refusal can mean an enforcement notice requiring reinstatement at your cost. It's also a criminal offence under section 9 of the 1990 Act, and unlike an ordinary planning breach, there's no time limit after which it becomes immune from enforcement.
Can I do simple repairs without applying for consent? Genuine like-for-like repair, using matching materials and not altering the building's character, generally doesn't need consent. Conservation officers read that line narrowly and not always consistently between authorities, so I'd check before assuming for anything beyond straightforward maintenance.
Most of the listed and traditionally-built properties I survey that go on to need consent for something — an extension, an opened-up wall, a new bathroom — benefit from an accurate read of the existing construction before anyone starts drawing up a schedule of works. My Building Survey specialises in listed and traditionally-built stock — lime mortars, breathable construction, suspended timber floors — and gives your architect or heritage consultant something solid to design from, rather than guessing what's behind the plaster. It sits alongside do listed buildings need an EPC? if you're also weighing up energy works on the same building. Call 07946 618203 or get in touch before you commission drawings, so the survey and the consent application are working from the same facts.
Small print. This guide is general information, not advice on a specific building or application, and it doesn’t replace a proper pre-application conversation with your local conservation officer or a written quote from a heritage consultant, architect or planning consultant. Prices were researched and correct to the best of my knowledge on 8 September 2026; costs move and vary by region, listing grade and project. Always get at least three written quotes, and confirm what a proposed quote actually covers before you commission it.