Listed building consent in London
Listed building consent is required for any works to a listed building that affect its special architectural or historic interest — and, crucially, that includes internal alterations, not just what you can see from the street. It is separate from, and usually needed in addition to, planning permission.
Getting it wrong is serious: carrying out unauthorised works to a listed building is a criminal offence, and enforcement can require reinstatement at your cost. Consent is won or lost on the design and the justification behind it, which makes this architects' work. Hampstead Architecture and Planning are ARB-registered architects who prepare listed building consent and conservation-area applications, take the drawings to the level of detail a conservation officer expects, and deal with the council through the process.
Where the problem is the fabric rather than the scheme — damp, movement, decayed structure, historic repair that needs diagnosing before anything is designed — that is a chartered surveyor's job first. Hampstead Chartered Surveyors & Building Consultancy (RICS-regulated, Firm Reg. 923064) cover building pathology and defect diagnosis on historic buildings.
Get your listed building consent application prepared
Tell us about the building and the works you have in mind. Your enquiry goes to Hampstead Architecture and Planning (ARB-registered), who will advise what needs consent and what the application has to show, and reply by email. No obligation, and no fee is quoted on this site.
Check the planning designations first — free
Important: the free check on this site verifies conservation-area and Article 4 designations at a property's coordinates — it does NOT confirm whether a building is listed. Listed buildings are recorded on Historic England's National Heritage List for England; confirm listing there or with the council. What your specific works need consent for is a judgement on the building, not a dataset lookup.
Or run the free planning permission checker.
What listed building consent covers
A listing protects the whole building — interior and exterior, and often structures within its curtilage — not just the façade. Consent is needed for demolition, alteration or extension that would affect the building's character as a building of special interest. Grades (I, II* and II) reflect significance, but the consent requirement applies to all of them.
In practice, the assessment turns on significance: what is special about the building, and how the proposed works affect it. A well-evidenced application that shows the works have been designed to preserve that significance is far more likely to succeed.
Works that commonly need consent
- Internal alterations — removing walls, chimneypieces, staircases or historic joinery
- Replacing windows, doors, roofing or rainwater goods
- Extensions, and changes to the roof form or massing
- Re-plastering, re-pointing or altering historic finishes and materials
- New services, kitchens and bathrooms where they affect historic fabric
- Demolition of any part of the building or a curtilage structure
What Hampstead Architecture and Planning do
- Advise which elements need listed building consent, and which need planning permission as well
- Design the works to what is realistically consentable, before you commit to a scheme
- Prepare the application: drawings at the level of detail a conservation officer expects, with the justification the works have to be judged on
- Submit it and deal with the council's conservation officer through determination
- Run the pre-application route where a significant scheme warrants testing the ground first
Where a chartered surveyor comes first
- Damp, movement, decay or structural doubt — diagnosed before anything is designed around it
- Building pathology on historic fabric, where the repair strategy determines what the scheme can do
- Technical due diligence before buying a listed building you intend to alter
- Party wall notices and awards where an extension or basement engages the 1996 Act
Hampstead Architecture and Planning design the works and prepare the listed building consent application. Hampstead Chartered Surveyors come in where the building's condition is the question — diagnosing damp, movement or decay before a scheme is drawn, and serving party wall notices where an extension needs them. Ask Hampstead Chartered Surveyors.
Listed Building Consent, answered straight
Does listed building consent cover internal work?
Yes. A listing protects the whole building, so internal alterations that affect its special interest — removing historic joinery, chimneypieces, staircases or walls — can need consent just as external changes do. This is one of the most commonly misunderstood points, and getting it wrong carries real risk.
Is listed building consent the same as planning permission?
No — they are separate consents, assessed under different legislation, and many projects need both. Listed building consent is free of application fee, but the professional work behind a credible application (significance assessment, heritage justification, detailed drawings) is what carries it.
How do I find out if my building is listed?
Listed buildings are recorded on Historic England's National Heritage List for England, and your local authority holds the local record. The free check on this site flags conservation-area and Article 4 context but does not confirm listed status. Once you know the building is listed, an architect can tell you which of your works need consent and how to evidence them.
What happens if works are done without consent?
Carrying out unauthorised works to a listed building is a criminal offence, and the council can serve a listed building enforcement notice requiring the works to be reversed at your cost. Because there is no time limit that legitimises unauthorised works to a listed building the way there can be for some planning breaches, getting consent first is essential.
Planning Permission Checker provides planning and cost intelligence for early feasibility only. It is not legal, planning, valuation, architectural, structural, or surveying advice. All estimates are indicative and must be verified by qualified professionals before purchase, design, planning submission, or construction.
Cost estimates are indicative only — not a quotation. Final price depends on survey, specification, structure, access, party wall matters, VAT, professional fees, and contractor availability.
Planning outcomes are not guaranteed. Local planning authorities make final decisions.