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Planning

Planning appeals in London

If the council has refused your planning application you can appeal to the Planning Inspectorate, and a householder appeal must be made within 12 weeks of the decision notice. We read the refusal, judge whether it can be answered and prepare the statement and drawings, on a fixed quote after a free constraints check.

Fixed quote after a free constraints check

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    Architectural model of a four-storey London stucco townhouse in its terrace, with a portico, area railings, sash windows, a cornice and chimney stacks
    The house as it stands: four storeys over a lower ground floor.Existing Proposed worksAn illustrative model, built for this page.

    How we work on planning appeals

    Seven steps from first call to approval.

    The same model cut through the middle: every floor, the stair, the chimney breasts, the new mansard, rear extension and basement in section
    Section through the model: every floor on one datum.
    1. Enquiry and constraints check

      We check the property against conservation areas, listed status, Article 4 directions, tree preservation orders, flood zone and planning history. We choose the right route and send a fixed quote.

    2. Measured survey

      We survey the house on one datum: rooms, levels, boundaries, drains, trees and the neighbours' windows that the 45° and 25° tests depend on.

    3. Design options

      We model the house in Revit and show you options in 3D and plan, with the planning strategy and the precedents in your street.

    4. Design frozen

      You choose an option in writing. Nothing changes after this without your say.

    5. Independent check

      A second chartered technologist checks every sheet against the council's validation checklist and the policy. A senior review signs it off before anything is submitted.

    6. Submission

      We prepare the forms, certificates, fee and documents and submit through the Planning Portal.

    7. Officer liaison

      We answer the planning officer and make any amendments within five working days, at no charge until approval.

    Free redraws until approval. Every drawing set is checked independently, and the checker is never the person who drew it.

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

    First step after a refusal: read the reasons

    The decision notice lists reasons for refusal. An appeal has to answer those reasons, not the council's whole file, so we begin by setting each reason beside the officer's report and the policy it cites.

    Three outcomes are realistic. The reasons may be fixable with changed drawings, in which case a revised application is often faster. They may rest on a judgement call where policy is arguable, which is what an appeal is for. Or they may be sound, and then we say so and spare you the cost.

    We never promise a result, because an independent inspector decides. What we offer is an honest read of the case and a clear presentation of it.

    Brick cottage with a tiled roof, chimneys and a front dormer window

    Time limits that cannot be stretched

    A householder appeal must be made within 12 weeks of the date on the decision notice. Other planning appeals have 6 months from the decision notice (or expiry of the decision period). Both come from the Development Management Procedure Order 2015.

    The clock runs from the date on the notice and not from the day you open the envelope, so send us the refusal the day it arrives. If the deadline is close, we put the grounds of appeal and the plans the inspector needs first.

    A late appeal is normally not accepted, so do not wait for a quieter month.

    How long an appeal takes

    The Planning Inspectorate publishes its own timings. For householder appeals decided by written representations, its latest statistics show a median of 11.6 weeks. Across all written-representation appeals the twelve-month median was 18 weeks.

    Those are national medians for appeals that have finished, not a forecast for yours. Site visits, hearings and complex cases run longer, and the Inspectorate's workload shifts from month to month.

    Plan in months. Do not commit to building work on the assumption of a quick answer.

    What the success rates mean, and do not mean

    In the latest quarter published, the Inspectorate allowed 31 per cent of section 78 planning appeals, and 29 per cent of those decided by written representations.

    Those rates cover every kind of appeal in England, from garden buildings to housing estates. They say nothing about your house and are neither a promise nor a prediction. What they do show is that most appeals are dismissed, which is why the decision to appeal should rest on the specific reasons given.

    Where a reason is narrow, such as one overbearing elevation, a design change often achieves more than an argument.

    The bundle we prepare

    Householder cases normally run by written representations. We write the statement of case, answering each refusal reason in turn against the development plan, and we prepare the drawings the inspector will use.

    The drawings are usually the council set, corrected where the refusal exposed a weakness. Where the dispute is about height, outlook or daylight we add sections and 3D views, since the relationship is easier to judge in section than in words.

    Someone outside the drafting team reads the whole bundle, and every sheet comes from one model so they agree. The method is described on our planning drawings page.

    Where the officer's report helps

    The delegated or committee report explains a refusal in full: the policies applied, what neighbours said and where the case turned. An appeal succeeds or fails on whether those reasons stand when someone independent reads them cold.

    We check three things. Does the reason cite a policy that covers the proposal? Did the officer measure something the drawings show differently? Were similar houses nearby treated differently? Decisions on the same street or terrace carry weight with an inspector, and our constraints check already looks for them.

    If the report contains a plain factual error, such as the wrong depth or a window that is not there, a short covering note and a corrected sheet may do more than a full appeal.

    Appeal, reapply or choose another route

    A revised application can be quicker and cheaper when the refusal is about detail. An appeal suits a case where the council appears to have misread its own policy. Sometimes the answer is another route altogether, such as a Lawful Development Certificate for work that never needed permission, or prior approval for a deeper rear extension.

    We set the options out in writing with a fixed quote for each, and you decide. If the building work is already finished, see retrospective planning applications. To see how a particular council's decisions have gone, start from architectural drawings by area.

    The national rules in figures

    Figures with their unit, period and source
    MeasureValuePeriodSource
    DMPO 2015 art 37(2)(a): householder appeal, from the date of the decision notice12 weeks—legislation.gov.uk
    DMPO 2015 art 37(2)(d)6 months from the decision notice (or expiry of the decision period)—legislation.gov.uk
    Annex B, householder appeals (written representations), decisions in June 2026; 351 decisions11.6 weeks—gov.uk
    Section 6: median for written representations, 12 months to June 202618 weeks—gov.uk
    Section 1.1: allowed rate for s78 planning appeals, Apr-Jun 202631 %—gov.uk
    Table B: written representations allowed rate, Apr-Jun 202629 %—gov.uk

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

    Which application your project needsLawful Development Certificate decision: 8 weeks. Prior approval decision: 42 days. Householder decision: 8 weeksYour projectWithin permitted development?Lawful Development CertificatePrior approvalHouseholder applicationYesLarger rear extensionNoABC

    Which application your project needs

    The usual route for a house; flats and listed buildings follow other rules.

    A · Lawful Development Certificate decision
    8 weeks
    B · Prior approval decision
    42 days
    C · Householder decision
    8 weeks

    What you receive

    Planning drawing sheet for a rear extension with plans, elevations and sections
    Sample drawing. Planning drawings for a rear extension: plans, elevations and sections on one sheet set.
    Rear view of brick terraced houses in London with slate roofs and chimney stacks along the shared roofline
    The street around you
    Move across the plinth — the blocks rise around the pointer.

    Questions

    How long do I have to appeal a householder refusal?

    12 weeks from the date of the decision notice. For other planning appeals the limit is 6 months from the decision notice (or expiry of the decision period).

    How long does a householder appeal take?

    The Planning Inspectorate's latest median for householder appeals decided by written representations is 11.6 weeks. It is a national median and not a forecast for your case.

    What proportion of planning appeals succeed?

    The Inspectorate allowed 31 per cent of section 78 appeals in the latest quarter published. The figure covers all development types and says nothing about one case.

    Is it better to appeal or reapply?

    It depends on the reasons for refusal. Narrow, fixable reasons often suit a revised application, while reasons that misread policy may suit an appeal. We give you both options with fixed quotes.

    Do you charge for appeals by the hour?

    No. The quote is fixed once the free constraints check is done, so you know the cost before you commit.

    Sources and dates

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    Tell us about your property.

    We check the constraints, then send a fixed fee. Messages before 3pm get a reply the same working day.