Planning Appeals in London 2025: What to Do When Planning Permission Is Refused

**The three options after a planning refusal**:

**Option 1: Resubmit with amendments (within 12 months of the original decision)**:

For householder planning applications (applications for extensions, loft conversions, and other works to an existing dwelling) in England, one resubmission within 12 months of the date of the original decision is **exempt from the planning fee**. If the original application paid the householder fee of £258, the first resubmission of a substantially similar application within 12 months carries no application fee.

• *When resubmission is the right choice*:
• •The refusal is based on specific design issues (scale; massing; material; design character) that can be addressed by amendments to the design
• •The planning officer's report gives clear guidance about what would or would not be acceptable — often the report will indicate a 'would accept' design even while refusing the current scheme
• •The refusal reason is about a particular element (e.g., a dormer that extends too close to the front slope; a roof terrace that the officer considers an unacceptable amenity impact) that can be removed without fundamentally changing the project
• •Pre-application advice from the local planning authority (before the original application) suggested the scheme could be acceptable with modification

• *When resubmission is NOT the right choice*:
• •The refusal is based on an in-principle objection (the authority considers the type of development unacceptable in principle in this location — e.g., a side extension to a house in an area with a policy against side extensions in that street type)
• •The refusal reasons reflect a misapplication of development plan policies that an appeal inspector might correct
• •The planning officer's report is factually incorrect or has failed to correctly apply national planning policy
• •The proposed development was already a modified version of a previously refused scheme, and further modification would make the project unviable

**Option 2: Appeal to the Planning Inspectorate (PINS)**:

Any applicant who has received a planning refusal (or whose planning application has been undetermined beyond the 8-week determination period without an extension of time being agreed) can appeal to the Planning Inspectorate. For householder planning refusals in London, the appeal is to PINS and is heard by a Planning Inspector appointed by the Secretary of State.

*The appeal deadline*: for householder planning appeals, the deadline for submitting the appeal to PINS is **12 weeks from the date of the local planning authority's decision notice** (for decisions made after September 2013; shorter deadlines may apply to older decision notices). Missing the 12-week deadline means the right of appeal is lost for that decision.

*The planning appeal fee (2025 position)*: as of 2024, the government introduced fees for some planning appeals in England. For householder appeals, the current fee as of the 2024 fee revision is **£136**. This is the appeal submission fee paid to PINS. It is a relatively modest fee compared with the professional costs of preparing an appeal statement.

**Option 3: Abandon and reapply in the future**:

In some cases, neither resubmission nor appeal is viable — the refusal may reflect a clearly applicable and enforced local planning policy (e.g., a conservation area restriction that will not be overturned on appeal), or the cost of pursuing an appeal may outweigh the benefit of the proposed development. In these cases, accepting the refusal and revisiting the project in the future (with changed policy context; changed property circumstances; or a fundamentally different design approach) may be the pragmatic option.

**The importance of reading the refusal reason carefully**:

The refusal notice from the local planning authority contains the **reason(s) for refusal** — these are the formal, written statements of why permission was refused. The quality and accuracy of these reasons is critical:

• •A well-written refusal reason will cite a specific development plan policy (e.g., 'Policy HO6 of the Borough's Local Plan' or 'the London Plan Policy D3') and explain how the proposed development fails to comply with that policy
• •A poorly-reasoned refusal reason may cite policy but fail to explain the nexus between the policy and the specific objection to the proposal — this is potentially a ground of appeal
• •National Planning Policy Framework (NPPF) guidance sets out that planning decisions must be plan-led (based on the development plan) and that applications should be determined in accordance with the development plan unless material considerations indicate otherwise. If the refusal reasons do not properly reflect the development plan, an appeal has stronger grounds

• *What to look for in a refusal reason that may indicate grounds for appeal*:
• •Refusal cites 'character and appearance' without specifying which policy character requirement has not been met
• •Refusal cites 'harm to the amenity of neighbouring properties' without specifying the nature of the harm (overlooking; overshadowing; loss of light — each requires specific analysis)
• •Refusal cites 'overdevelopment of the site' without specifying the policy that sets a standard for site coverage or plot ratio in the area
• •Refusal cites a policy that, on reading, does not support the conclusion drawn in the reason

**Three routes for householder planning appeals at PINS**:

**1. Written Representations (the standard route for householder residential appeals)**:

Written Representations is the simplest and fastest appeal route. It is the correct route for the vast majority of London residential planning appeals (loft conversions; extensions; dormer windows; rear additions; outbuildings).

The process:

1. **Appellant's Statement of Case**: the appellant (the applicant or their planning consultant) prepares a written statement explaining why the Inspector should allow the appeal — citing the relevant development plan policies; the NPPF; and the specific errors or failures in the local authority's refusal reasons. Submitted to PINS within the appeal submission deadlines.

2. **Local Planning Authority's Statement of Case**: the LPA prepares a written response defending their decision — their planning officer prepares the LPA's statement citing why the refusal was correct.

3. **Interested parties' representations**: neighbours and third parties who made representations to the original application can submit further written representations to PINS in response to the appeal.

4. **Inspector's site visit**: the Inspector (a PINS Planning Inspector, an independent civil servant employed by the Planning Inspectorate) visits the site. For Written Representations, the site visit is typically an **unaccompanied site visit** — the Inspector visits independently, without the appellant or the LPA officer. The Inspector can enter the curtilage of the site only with permission, so access should be arranged (for a rear extension, the Inspector may need access to the rear garden to view the proposed rear extension area and the effect on neighbouring properties).

5. **Inspector's Decision**: the Inspector issues a written Decision Notice allowing the appeal (overturning the LPA's refusal) or dismissing the appeal (upholding the LPA's refusal). There is no hearing, no attendance, and no oral argument in the Written Representations procedure.

*Timescales for Written Representations householder appeals in London (2025)*:

• •From appeal submission to Inspector's decision: typically **24–35 weeks** for a householder Written Representations appeal. PINS target is 26 weeks for householder appeals. London boroughs, which are among the busiest in the PINS system, sometimes experience slightly longer timescales.

**2. Informal Hearing**:

An Informal Hearing is a meeting between the appellant, the LPA, and the Inspector at which the parties discuss the issues in the appeal informally. It is not an adversarial procedure — there is no cross-examination of witnesses and no formal evidence. The Inspector leads the discussion, probes the parties' positions, and may ask specific technical questions.

• *When is an Informal Hearing appropriate?*:
• •Where there are factual disagreements between the appellant and the LPA that would benefit from discussion (e.g., disputes about the character of the local area; interpretation of a policy)
• •Where the Inspector considers it helpful to discuss specific issues in person
• •Where the appellant's planning consultant wants the opportunity to present the case orally and respond to the Inspector's questions directly

*Timescales*: typically 30–40 weeks from appeal submission to decision.

**3. Public Inquiry**:

A Public Inquiry is a formal, adversarial hearing with witnesses, evidence, cross-examination, and legal representation. It is appropriate for major development proposals; significant enforcement appeals; and cases where there are complex factual or legal issues.

For a London householder planning appeal (extension; loft conversion; outbuilding), a Public Inquiry is almost never appropriate — the cost, time, and complexity of an Inquiry procedure are disproportionate to the scale of a householder development. Householder appeals are virtually always conducted by Written Representations.

**Choosing Written Representations vs. Informal Hearing for a London householder appeal**:

• For a standard London residential extension or loft conversion appeal:
• •**Written Representations** is almost always the right choice — it is the fastest route; it costs less in professional fees (no hearing to prepare for); and PINS statistics show that the success rate for householder Written Representations appeals is comparable to Informal Hearing appeals
• •**Informal Hearing** is rarely needed for a householder appeal but may be considered where there is a dispute about factual matters that the appellant's planning consultant believes would be better resolved by discussion than written argument

**Appeal success rates in London residential planning appeals (approximate)**:

PINS publishes national statistics on appeal outcomes. The overall allow rate for all planning appeals in England is approximately 30–35%. For householder planning appeals specifically (the category covering residential extensions, loft conversions, and similar):

• •The overall householder appeal allow rate in England is approximately 30–40% — varying by year and by specific reason for refusal
• •Design-related refusals: appeal allow rate varies significantly by quality of the inspector's analysis. Well-designed schemes refused on design grounds often have allow rates of 40–55% because inspectors frequently take a less conservative view of design character than local planning officers in London boroughs
• •Amenity-related refusals (overlooking; overshadowing; loss of daylight/sunlight): these are more likely to be upheld on appeal (lower allow rate: approximately 25–35%) where the LPA has specific amenity standards (e.g., BRE 45° rule for overshadowing) and the proposed development measurably fails those standards
• •Conservation area design refusals: lower allow rate in London (approximately 20–30%) — inspectors typically respect the LPA's assessment of design impact in conservation areas where local design guidance exists

**Costs award — claiming costs against the LPA for unreasonable refusal**:

Where a planning authority refuses planning permission in a way that is found by the Inspector to be **unreasonable** — either because the refusal is clearly contrary to the development plan without adequate justification, or because the refusal reasons are vague, generalised, or do not properly engage with the proposal — the appellant can apply for an **award of costs** against the LPA.

• A costs award requires a separate application to PINS (a 'costs application') made at the same time as or within the appeal process. The Inspector can award costs where:
• •The LPA has acted unreasonably in refusing permission and that unreasonable behaviour has caused the appellant to incur unnecessary costs in pursuing the appeal
• •'Unreasonable' in this context includes: refusing permission contrary to a previous appeal that allowed the same or similar development; refusing without sound planning reasons; failing to engage with relevant policy; and other behaviours defined in PPG (Planning Practice Guidance) on costs awards

*Practical importance*: costs awards against LPAs in householder appeals are relatively rare but not unknown. Where a London borough's planning officer has refused a scheme in a way that is clearly contrary to national planning policy or where similar schemes in the same area have received planning permission, a costs application is worth including with the appeal. Even the threat of a costs application can influence how the LPA defends its decision at appeal.

**Do you need a planning consultant for a planning appeal?**

For a London residential planning appeal (householder; Written Representations), using a professional planning consultant significantly improves the quality and persuasiveness of the appeal statement — and, in PINS appeals, the quality of the written case is the primary determinant of the outcome.

*Why a planning consultant adds value in an appeal versus the original application*:

• •The original application may have been submitted without professional planning support (or with minimal support from an architectural technician or architect who does not specialise in planning). An appeal is an opportunity to present the planning case properly for the first time.
• •A planning consultant understands the development plan policies that apply to the proposal and can analyse whether the LPA's refusal reasons correctly apply those policies — identifying errors or gaps in the LPA's reasoning that are the basis for the appeal
• •A planning consultant can distinguish between a refusal that is defensible (grounded in applicable policies and genuine planning harm) and one that is likely to be overturned on appeal — providing honest advice about prospects before the appeal fee and professional costs are committed
• •A planning consultant drafts the Statement of Case for the Written Representations appeal — the written document that presents the planning argument for the Inspector. The quality of this document is critical: Inspectors decide the appeal on the basis of the written evidence and the site visit, and a poorly written appeal statement (even where the scheme is meritorious) can result in a dismissed appeal

*When you don't need a planning consultant*:

Where the refusal is based on a clear technical issue that can be resolved by design amendment (and resubmission is a better option than appeal), a planning consultant may not be needed — the architect or architectural technician can manage the resubmission process.

For an appeal, a planning consultant is strongly recommended for any scheme where the planning argument is at all complex — which includes most London residential extensions refused on design, conservation area, or amenity grounds.

**What a planning consultant does in a London householder planning appeal**:

1. **Appeals prospects assessment**: review the refusal reasons, the officer's report, and the relevant development plan policies; provide written advice on the grounds for appeal and the estimated prospects of success 2. **Appeal submission**: submit the appeal to PINS through the PINS appeals portal (the Planning Portal Appeals Service); confirm the correct appeal route (Written Representations) 3. **Draft Statement of Case**: prepare the full written Statement of Case for the appeal — the primary document on which the Inspector will decide the appeal 4. **Monitor the appeal and respond**: during the appeal period, the LPA submits its own statement; the planning consultant reviews it and considers whether a reply is appropriate (PINS allows a reply in some cases) 5. **Costs application** (if appropriate): prepare and submit a costs application alongside the appeal where grounds exist 6. **Site visit preparation** (for accompanied site visits in Informal Hearings): attend the site visit and assist the Inspector in understanding the site

**2025 planning consultant fees for a London residential planning appeal**:

| Service | Cost range (London 2025) | |---|---| | Appeals prospects assessment (written advice; no appeal preparation) | £300–£700 | | Full householder Written Representations appeal (prospects assessment + appeal submission + Statement of Case + monitoring) | £1,500–£4,500 | | Informal Hearing appeal (full preparation + attendance at hearing) | £3,500–£7,500+ | | Costs application (prepared alongside the appeal) | £500–£1,500 additional |

*Note*: planning consultant fees for a Written Representations appeal represent the professional cost of the appeal — they are separate from the PINS appeal fee (£136) and from any additional architect's or specialist's fees (for example, if a daylight and sunlight assessment is required to address an amenity refusal, a specialist consultant is instructed separately at a cost of £800–£2,500).

**Is a planning appeal worth it financially?**:

• For a London householder extension or loft conversion, the value of the development added by an approved extension typically justifies the appeal costs where the project adds meaningful value. Approximate value added by approved developments in London (for a mid-range London terrace):
• •Single-storey rear extension (25–30m²): typically £35,000–£80,000+ added value to the property
• •Loft conversion (additional bedroom): typically £30,000–£60,000+ added value
• •Double-storey extension: typically £60,000–£120,000+ added value

A Written Representations appeal at a total cost of £2,000–£5,000 (professional fees + PINS fee) with a 30–40% prospect of success represents an expected value of £12,000–£24,000 for a single-storey rear extension — a positive expected value where the financial stakes justify the professional cost. For smaller projects (a small rear infill extension of minimal value) or where the prospects assessment suggests a low (<20%) probability of success, the economics may not support an appeal.