A new boundary feature can affect privacy, enclosure, appearance or access. A change to ground level can alter those relationships even where a fence stays in the same position. Start by comparing the existing and proposed arrangement, then identify which question belongs to planning.
Who owns a fence, where the exact boundary lies and whether someone has a private right of access are separate matters. A planning decision does not settle them. Government boundary guidance explains that most title plans do not show an exact boundary, so do not treat a thick line on a title plan as a precise survey.
Establish what is actually proposed
Read the application description, site plan and relevant elevations or sections. Identify the length and position of each wall, fence, gate, screen, planted strip and retaining structure. Check which features would remain and which would be replaced.
Look for both existing and proposed levels. A fence described by one height may look very different from land on the other side. Ask which ground level a stated measurement uses. If the plans do not show a relevant level change or neighbouring relationship, identify the missing information rather than assuming the highest possible impact.
Photographs can help explain current conditions. Take them from places you may lawfully access, label the viewpoint and avoid unnecessary images of people or private interiors. A photograph is useful context; it does not replace a section through a proposed change in level.
Check the permission route
Part 2 Class A of the General Permitted Development Order contains rights for specified gates, fences, walls and other means of enclosure, with limitations. Highway relationships and listed-building circumstances are among the matters that can affect the route. Earlier conditions or an applicable Article 4 direction may also need checking.
Do not conclude that a feature must be acceptable simply because someone quotes a familiar height. Equally, requiring an application does not mean that the council must refuse it. The permission route and the assessment of an application are different questions.
Changes to levels and associated engineering works need their own consideration; they are not automatically covered because a fence is included. The permission-routes guide explains how to identify the relevant documents without making a site-specific entitlement claim.
Privacy and screening can pull in different directions
Describe what the changed feature allows someone to see, from where, and how that differs from the existing relationship. A raised terrace or garden area may create a new viewpoint even without a new window. Identify the affected room or usable garden area rather than saying that the whole property is overlooked.
Screening can reduce a view while introducing another effect. A tall solid screen close to a room may change outlook or create enclosure. Explain both relationships. Do not assume that the tallest screen provides the best planning solution, or prescribe a universal screening height.
Use the privacy and outlook evidence resource to understand why context matters. It is not a set of precedents requiring the same outcome for every boundary feature.
Describe an enclosing effect precisely
For a wall or retaining structure, identify the affected place and the proposed feature visible from it. Record height, length, proximity and the source of each measurement. Explain the existing openness or enclosure so the change can be understood.
Keep this separate from a claim to retain a particular private view. An attractive view being interrupted and a close structure creating an enclosing relationship are different arguments. Read the private-views guide before preparing this part of your comment.
If a retaining wall raises a stability question, use the excavation and stability guide. Do not infer structural inadequacy from appearance or propose a foundation design.
Check landscaping and access as practical arrangements
Where planting is proposed, distinguish existing retained vegetation from new planting. Ask what the submitted documents say about species, establishment, replacement and maintenance. A diagram showing a mature hedge does not establish immediate screening when a scheme first opens.
Tree or habitat concerns belong with the actual survey and retention proposals. The trees and wildlife guide covers that evidence. Avoid inventing root distances or treating every garden plant as protected.
For a gate near a highway or shared entrance, explain the movement and visibility relationship shown on the plans. Identify where people or vehicles would wait and whether an opening would affect a usable route. Keep a disputed private access entitlement separate from an evidenced planning concern about access or safety.
Finish with the unresolved question
A concise comment might identify missing cross-sections, inconsistent levels, an unexplained screening assumption or a gate arrangement that has not been shown clearly. Cite the current drawing revision and ask for that relationship to be assessed.
Avoid presenting a boundary disagreement, maintenance preference or personal dispute as a reason to refuse planning permission. The useful planning contribution is the evidenced change to the surroundings and the specific information needed to understand it.
Sources and corrections
Source scope checked on 27 October 2026. Contains public sector information under the Open Government Licence v3.0 where applicable. No third-party drawings or photos reproduced. Report a correction with the sentence and source.
GPDO minor operations — ClassA,A.1–A.2. - Your property boundaries — Overview. - When permission is required — Paragraphs001–003;permitted development. - Land stability — Paragraphs002,006–009.