Conservation-area rules for hedges and trees in St Margaret's Bay.
St Margaret's Bay was designated a conservation area in November 1990. If your garden falls within the boundary, the trees growing in and around your hedges carry legal protection under section 211 of the Town and Country Planning Act 1990, and cutting them without giving Dover District Council six weeks' notice can lead to a criminal prosecution.
Exposure for this job
- Clifftop / Bay (most exposed): the heart of the St Margaret's Bay Conservation Area designation. Any tree with a trunk diameter over 75 mm, measured at 1.5 m above the ground, requires a section 211 notice to Dover District Council before significant work. Routine hedge trimming is exempt, but felling or heavily cutting back large individual trees growing within or alongside your hedge line is not.
- Village / inland (moderate): the village of St Margaret's at Cliffe may sit in a separate conservation area from the Bay's, and Dover District has 57 designated conservation areas in total. Check the council's interactive conservation area map for your exact address; the rules operate wherever a boundary applies.
- Dover town / sheltered (least exposed): Dover town has its own conservation areas, including the town centre. Coastal-exposure timing concerns don't apply here, but section 211 protections still operate wherever the boundary runs and the same six-week notice requirement applies.
What the Bay's conservation area means in practice
The St Margaret's Bay Conservation Area was first designated by Dover District Council in November 1990. A character appraisal published by the council in March 2023 noted that the area's special character derives in part from "the many trees and hedges" that define its garden structure and clifftop setting, which is exactly why tree protections here matter more than they would in a standard residential street inland.
The designation does not stop you trimming a hedge. What it does is give any qualifying tree within the boundary legal protection equivalent to a Tree Preservation Order, without the council needing to make a separate Order. The qualifying threshold is a trunk diameter of more than 75 mm at 1.5 m above the ground. That catches most mature hedgerow trees: established leylandii trunks, old holly specimens, holm oak standards, and overgrown escallonia or griselinia specimens that have thickened from shrub into tree over the years since the Bay's gardens were first planted.
Section 211 of the Town and Country Planning Act 1990
The relevant law is section 211 of the Town and Country Planning Act 1990. Before felling, significantly pruning, or removing a tree over the 75 mm threshold within a conservation area, you must give Dover District Council six weeks' written notice using what is called a section 211 notice. The notice opens a window during which the council can decide to make a formal Tree Preservation Order, extending the tree's protection indefinitely. If the council makes no TPO and issues no explicit consent within the six weeks, you are free to proceed, and that authorisation remains valid for two years from the date of the notice.
There is no fee for submitting a section 211 notice. The council can also give written consent before the six weeks are up, shortening the wait if the work is straightforward and uncontentious. Not notifying is a criminal offence: GOV.UK gives a fine of up to £20,000 in the magistrates' court, and an unlimited fine in the Crown Court for serious cases. The council logs all section 211 notices, so there is a paper trail either way.
What does not need notifying
Routine trimming of a hedge, cutting it back to its established line and height, does not require a section 211 notice. The exemption covers managed clipping of a hedge grown and maintained as a hedge, not the removal or heavy reduction of individual trees that happen to grow within or alongside a hedge line. In practice the distinction comes down to whether you are maintaining a boundary hedge or working on trees. If a leylandii in your clifftop boundary has grown to ten metres and you want to fell or drastically reduce it, that is tree work requiring notification regardless of whether it started life as part of a hedge row. If you are clipping the same row back to its usual height each autumn, that is hedge maintenance and no notice is needed.
Dead trees and dangerous trees have their own rules. For a dead tree you must give the council five working days' written notice before the work, with evidence that it is dead. If a tree presents an immediate risk of serious harm, you can do only the work that removes the risk, and written notice is then due as soon as practicable afterwards. If the danger is not immediate, use the normal six-week notice. A tree removed as dead or dangerous normally has to be replaced. Do not assume urgency as a general exemption without checking the current guidance from Dover District Council first.
Clifftop timing: conservation area meets Channel gales
In the Bay, section 211 rules often collide with the practical reality of the coastal cutting calendar. Under the Wildlife and Countryside Act 1981, section 1, it is an offence to damage or destroy an active bird's nest during the nesting season, which runs roughly from 1 March to 31 August. A six-week notice submitted at the end of August lands the work squarely in September, the best month for hedge work on this stretch of coast before autumn Channel gales arrive from mid-October onwards. That timing actually works well if planned in advance: submit the notice in mid-July, use the Bay's sheltered early-September weather window for the work, and avoid both the nesting closure and the gale season. Leaving the notice until September means October at the earliest, which is legal and often fine, but more likely to be disrupted by salt-laden south-westerly gales. For the full seasonal picture, see our hedge cutting timing and nesting season guide.
The Hedgerow Regulations 1997: a separate strand
Section 211 applies to qualifying trees within a conservation area. A different set of rules, the Hedgerow Regulations 1997, applies to hedgerows on non-garden land, typically agricultural or forestry boundaries, regardless of conservation area status. If a hedge runs along a field boundary rather than within a domestic garden, and it is over 30 years old, its removal may require 42 days' notice to the council under those Regulations. The test for "importance" under the 1997 Regulations involves ecological and historical criteria beyond simple age. Most hedges in St Margaret's at Cliffe gardens are domestic boundary hedges and fall outside the Regulations, but hedges along field edges near Kingsdown and Ringwould are more likely to fall within their scope.
High hedges and conservation areas: two separate regimes
If your concern is a neighbour's hedge blocking your light rather than conservation area tree notification, those complaints run under Part 8 of the Anti-social Behaviour Act 2003 and Dover District Council administers them. That regime and the section 211 conservation area rules operate entirely independently of each other. See our high hedge neighbour law guide for the full process. One regime does not override or suspend the other: a hedge that is also in a conservation area and also causing a light dispute is subject to both simultaneously.
Ready to give notice? Our step-by-step guide, how to apply for permission to prune trees in St Margaret's at Cliffe and the Bay, has the council links, an example notice and the timing against the gales.
Not sure whether your trees need notifying?
We check the conservation area boundary and assess trunk diameters before any significant tree or hedge work in the Bay. Email hello@stmargaretshedges.co.uk or call 07763 100 477 with your postcode and a description of what you need done. We will tell you what notice is needed, how long to allow, and whether the timing works around the Channel weather window.
A tree over the road can also draw a council notice with a short deadline. Received a section 154 notice? What to do, including what to check before pruning a protected tree.
This guide is for general information. Always check the current conservation area boundary map and guidance from Dover District Council before proceeding.
Sources: Town and Country Planning Act 1990, s.211 (trees in conservation areas); Planning (Listed Buildings and Conservation Areas) Act 1990; Hedgerow Regulations 1997; Wildlife and Countryside Act 1981, s.1 (nesting season); Anti-social Behaviour Act 2003, Part 8 (high hedges); Dover District Council, St Margaret's Bay Conservation Area Character Appraisal (March 2023); GOV.UK guidance: Tree Preservation Orders and trees in conservation areas; GOV.UK, Countryside hedgerows: regulation and management; Emma Marrington, CPRE, "Hedgerows: Laws, Rules & Regulations" (YouTube, CPRE channel).