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Georgian brick terrace with sash windows, arched fanlight doorways, stone steps and iron railings in London
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01Planning and heritage consent

Listed building consent drawings for London's listed houses

Listing protects a house inside and out, so the drawings answer a different question from a planning set: what is original, what is changing, and what does each change do to the building's significance? Our chartered architectural technologists (MCIAT) survey the fabric, draw the existing and proposed work to that question, and coordinate a heritage consultant for the statement where one is needed.

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    02The brief

    What listing changes about a drawing set

    A listed house is judged as a whole, so the set records existing fabric as carefully as it records the proposal. National policy sets the standard: Proposals affecting heritage assets need an assessment of significance (including setting) proportionate to the asset's importance. The weight in the decision is also set nationally: Substantial weight to the conservation of designated heritage assets.

    Listing reaches into the garden too. Garden buildings within the curtilage of a listed building are not permitted development, so a garden room beside a listed house needs its own consent route before it needs a builder.

    Pencil resting on a dimensioned technical drawing beside a scale rule
    Red-brick mansion blocks and shopfronts on a street corner
    Photograph: Tom McCarten

    03The record

    The national rules in figures

    Figures with their unit, period and source
    MeasureValuePeriodSource
    NPPF Aug 2026, policy HE5(1)Proposals affecting heritage assets need an assessment of significance (including setting) proportionate to the asset's importanceNo periodgov.uk
    NPPF Aug 2026, policy HE6(1)Substantial weight to the conservation of designated heritage assetsNo periodgov.uk
    Class E, para E.1(g)Garden buildings within the curtilage of a listed building are not permitted developmentNo periodlegislation.gov.uk
    Concessions: application types with no current fee - Listed Building Consent0 GBPNo periodribblevalley.gov.uk
    Planning (Listed Buildings and Conservation Areas) Act 1990 s9(1), s9(4)Works without consent: up to 6 months' imprisonment or a fine on summary conviction; up to 2 years or a fine on indictmentNo periodlegislation.gov.uk
    Works to listed buildings must preserve significance, setting and features; historic fabric and original features to be preserved.preserve significance and fabricNo periodrbkc.gov.uk, RBKC Local Plan 2024, Policy CD5 A-D, p236
    Removal of important internal or external features resisted without clear and convincing justification.clear and convincing justificationNo periodrbkc.gov.uk, RBKC Local Plan 2024, Policy CD5 C and F, p236
    Listed building works must retain and repair fabric, not harm structure, and confine extensions to less significant partsextensions to less significant partsNo periodharingey.gov.uk, Haringey Development Management DPD (adopted July 2017), Policy DM9 part F, p.22
    Listed building guidance predates current policy; read with adopted policy and PPG; pre-application advice recommendedpre-application advice advisedNo periodwestminster.gov.uk, Listed buildings (council web page), page text
    Listed building entries4,015 list entries (Historic England, within the LPA boundary)No periodplanning.data.gov.uk
    Listed building entries1,350 list entries (Historic England, within the LPA boundary)No periodplanning.data.gov.uk
    Listed building entries1,971 list entries (Historic England, within the LPA boundary)No periodplanning.data.gov.uk
    Listed building consents granted (PS2)95 % granted2025 Q2 to 2026 Q1 (1 Apr 2025 to 31 Mar 2026)assets.publishing.service.gov.uk

    A blank value means the figure has not been published, not that there are none. Check your own address with the council.

    London33 councils
    Councils on this page

    04The drawing

    The listed building consent routeA, What the council weighs: Proposals affecting heritage assets need an assessment of significance (including setting) proportionate to the asset's importance. B, The weight given to conservation: Substantial weight to the conservation of designated heritage assets. C, Works without consent: Works without consent: up to 6 months' imprisonment or a fine on summary conviction; up to 2 years or a fine on indictmentSurvey and significanceHeritage statementDrawings and scheduleCouncil decisionABC

    The listed building consent route

    How works to a listed building are consented, from the first survey to the decision.

    A What the council weighs
    Proposals affecting heritage assets need an assessment of significance (including setting) proportionate to the asset's importance
    B The weight given to conservation
    Substantial weight to the conservation of designated heritage assets
    C Works without consent
    Works without consent: up to 6 months' imprisonment or a fine on summary conviction; up to 2 years or a fine on indictment
    The listed house in its terrace3D
    Scroll the page: the model turns with it.

    05The detail

    Consent and planning permission are separate applications

    Listed building consent covers the effect on the building's character. Planning permission covers the use and appearance of the land. A single scheme often needs both, for instance a roof change that also needs mansard roof drawings or a lower floor that needs basement conversion drawings.

    The councils do not charge for the consent application itself, which the national fee table prices at nothing. Our own fee is a fixed quote after the free constraints check, and any planning application made alongside it has its own council fee.

    How councils write the test

    Kensington and Chelsea asks that works preserve significance and fabric, and it resists the loss of important features without clear and convincing justification. Haringey's policy goes to the plan of the house: listed works should confine extensions to less significant parts.

    Westminster is candid that its listed building guidance is older than its current policy. Its own file says to read the two together and to seek pre-application advice, and we build that conversation into the programme.

    The scale of London's listed housing

    Historic England records 4,015 list entries in Westminster, with 205 at Grade I and 373 at Grade II*. Kensington and Chelsea has 1,350, Camden 1,971 and Haringey 289.

    Decision records give a sense of volume rather than odds. In its latest published year Camden decided 402 applications to alter or extend a listed building and granted 95% of them, while Westminster decided 1,553 and granted 90.5%. They describe past decisions, not your application.

    Starting work too early

    Works without consent: up to 6 months' imprisonment or a fine on summary conviction; up to 2 years or a fine on indictment. The offence attaches to the work, so the order of events matters: consent first, then the build.

    For a listed house in Westminster, the neighbourhood guides to architectural drawings in Mayfair and Marylebone's period streets set out the conservation area and council guidance that sit around it.

    Planning sheet for a single-storey rear extension: proposed ground floor plan and rear elevation, with the Property Architecture title block
    Sample drawing. Proposed plan and rear elevation from a planning application set, sheet 03 at 1:50.

    06The papers

    What the drawings rest on

    Upper floors of a large yellow-brick Victorian house in London with chimney potsFlat conversions & change of use
    Photograph: Lorenc Memaga
    Building regulations section through a rear extension, with the roof, floor, wall and foundation build-ups labelled
    Sample drawing. Section A-A with the build-ups building control checks, sheet 07 at 1:50.

    07Correspondence

    Questions

    Does work inside a listed house need consent?

    Listing covers the whole building, interior included, so internal changes that affect its character need consent. Send us the address and we read the list entry before telling you which rooms and features it concerns.

    What do I pay the council, and what do I pay you?

    Nothing goes to the council for the consent application itself, because the national table sets no fee for it. We quote a fixed fee after a free constraints check, because it depends on how many rooms and elevations the work touches. A planning application alongside has a separate council fee.

    Can I build a garden room beside a listed house?

    Only through the right application. Garden buildings within the curtilage of a listed building are not permitted development. We check the curtilage of your house and draw the building for the route it needs.

    What if work has already started without consent?

    Works without consent: up to 6 months' imprisonment or a fine on summary conviction; up to 2 years or a fine on indictment. Stop the work, keep photographs of what exists, and send them to us so we can advise on the next step.

    Rows of brick terraced houses and gardens on a residential street
    Photograph: Altaf Shah

    08Further reading

    London

    09Sources

    Sources and dates

    Licences

    Kensington street lined with brick townhouses and lit streetlamps beneath an orange dusk sky

    Send us the address of your house.

    We look up the conservation area, listing and Article 4 position, then reply with a fixed fee. A message before 3pm is answered the same working day.

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    Listed building consent drawings for London houses