A useful planning comment explains a particular change: which window, room, garden or building feature is affected, and what the submitted proposal would do. These six historical appeal examples help separate those questions.

Read them as examples of reasoning, not precedents or predictions. The proposals, evidence and policies differed. An appeal can be dismissed even where an inspector accepts one of the disputed effects. None of these examples establishes that a neighbour’s objection caused an outcome.

1. An unsuccessful appeal does not prove every objection was accepted

Islington — Coombs Street. The roof-terrace appeal was dismissed because of conservation-area harm. Yet the inspector found no significant additional privacy harm in the existing close residential relationship. Keep the heritage and privacy findings separate.

Appeal APP/V5570/D/24/3346541; application P2024/0255/FUL; decision 10 September 2024. Read the decision, paragraphs 6–18.

Teignbridge — High Street, Ide. Existing ground-level overlooking did not settle the effect of a new elevated terrace. Its relationship with nearby upper-floor windows led to unacceptable privacy, noise and disturbance effects; the heritage assessment was neutral.

Appeal APP/P1133/D/25/3369325; application 25/00623/HOU; decision 5 September 2025. Read the decision, paragraphs 4–11 and 14.

What to record: distinguish existing views from the proposed elevated use. Identify which room or area would be affected. If heritage matters, describe the particular roof or architectural feature separately.

2. Rear dormers need an assessment of their actual context

Brent — Cricklewood Broadway. The appeal was dismissed. Enlarging a dormer across an important outrigger roof harmed conservation-area character. Matching materials did not resolve the roof-form harm. The separate internal-accommodation issue was acceptable.

Appeal APP/T5150/W/25/3375686; application 25/2429; decision 29 January 2026. Read the decision, paragraphs 4–18.

Westminster — Wellington Road. A different rear dormer was allowed subject to conditions: the inspector considered its fit within the roof and the surrounding context acceptable, with a neutral conservation-area effect. An existing permission and a different earlier enforcement case did not replace assessment of this proposal.

Appeal APP/X5990/W/25/3375557; application 25/01860/FULL; decision 8 May 2026. Read the decision, paragraphs 1 and 11–22.

What to record: identify the roof feature that contributes to the area’s character, how the proposal changes it, and the relevant official conservation-area appraisal. “It is at the rear” is a location, not a complete assessment.

3. Outlook and light need separate explanations

Wandsworth — Rush Hill Road. A proposed roof addition would increase enclosure around a bedroom window. Outlook harm was sufficient to dismiss the non-determination appeal, while the inspector could not confidently establish daylight or sunlight harm from the evidence.

Appeal APP/H5960/W/24/3343540; application 2023/4695; decision 14 November 2025. Read the decision, paragraphs 6–9.

Enfield — Swan Way. The appeal was allowed subject to conditions. A replacement extension retained the existing footprint and an open aspect over neighbouring gardens. The inspector found no unacceptable light or outlook effect. The existing structure and submitted evidence were central to that assessment.

Appeal APP/Q5300/D/25/3368834; application 25/01188/HOU; decision 3 September 2025. Read the decision, paragraphs 3–7.

What to record: explain enclosure from the affected window or garden independently of daylight. Refer to available plans and evidence; do not invent a percentage loss or assume a missing technical report decides the matter.

Use the evidence in your situation

  1. Open the current application and identify the latest drawings.
  2. Describe the existing relationship and proposed change.
  3. Identify the affected room, window, garden or heritage feature.
  4. Link each concern to evidence you can accurately explain.
  5. Check the council’s current guidance and policies. Historical references do not establish today’s applicable framework.

Our overlooking and loss-of-light guide explains the issues in more detail. Find your council for the relevant local process.

Sources and corrections

Original Planning Inspectorate decisions are linked beside each example. Source check: 25 October 2026. Each decision is historical; the national framework was subsequently revised on 17 August 2026. Check the current official framework and its application provisions for a current proposal.

Contains public sector information licensed under the Open Government Licence v3.0. These summaries use decision reasoning only. No applicant drawings, photographs or third-party submissions are reproduced. Linked originals may contain identifying information.

If a link or summary needs correction, use the contact route shown on this website and include the appeal reference and sentence concerned.