Street trees and highway works: who decides
A tree in the footway belongs to the highway authority, not the planning authority and not the householder. That single fact decides most access designs.
Trees standing in the adopted highway are owned and managed by the highway authority, which is the county council in two-tier areas and the unitary, borough or metropolitan council everywhere else. The planning authority cannot authorise their removal, and neither can a planning permission. A consent that shows a new driveway crossing the position of a street tree is not consent to remove the tree, and applicants discover this after permission has been granted more often than anyone would like.
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Who owns and manages trees in the highway
Ownership follows the land. Where the trunk stands within the adopted highway, the tree is the highway authority's, and the authority's arboricultural team manages it under a tree strategy or asset management plan. Where the trunk stands in the front garden behind the boundary, it belongs to the property owner even if the canopy overhangs the footway.
The extent of adoption is not always where the wall is. Verges, service strips and parts of what look like private forecourts can be adopted, and the definitive record is the highway authority's list of streets and its adoption plans. Ask for an extract for the frontage rather than reading a title plan.
Damaging or felling a highway tree without authority is a criminal matter, and highway authorities pursue it. Contractors who cut roots during a service connection have been prosecuted, and the authority can also recover the value of the tree.
Trees in the highway are usually outside the Tree Preservation Order system, because the authority already controls them. That does not weaken their protection. It changes who you ask.
Why highway trees are rarely removed for a private access
Highway authorities operate a presumption against removing a street tree to enable a private vehicle crossing. The reasoning is straightforward: the tree is a public asset, the driveway is a private benefit, and the authority would be exchanging one for the other at the public's expense.
Most authorities publish a policy on this, and most set out the same position. Removal is considered where the tree is dead, dying, dangerous or causing damage that gives rise to a claim, and not otherwise. A householder who wants the crossing badly enough may be offered removal at their cost plus a commuted sum, but plenty of authorities will not offer even that.
The application for a vehicle crossing is made to the highway authority under section 184 of the Highways Act 1980. That is a separate consent from planning permission, and it is determined against highway criteria: visibility, footway construction, drainage, service covers, proximity to junctions and street furniture, and the position of trees.
So the sequence is: check the tree position, check adoption, ask the highway authority whether a crossing is achievable at the proposed location, and only then fix the access on the drawing. Doing it the other way round produces a permission you cannot implement.
The tree officer and the highway team in two-tier areas
In a two-tier area the responsibilities split in a way that catches people out.
The district or borough council is the local planning authority. Its tree officer handles Tree Preservation Orders, conservation area tree notices under section 211 of the Town and Country Planning Act 1990, and the arboricultural assessment of planning applications on private land.
The county council is the highway authority. Its arboricultural and highway teams handle trees in the adopted highway, vehicle crossing applications, works within the highway under section 278 agreements, and street works licensing.
Both will comment on a planning application affecting a highway tree, and they can reach different conclusions. The district tree officer may be satisfied that the private trees on site are protected. The county highway team may object because the access damages the rooting area of a street tree. Address both in the submission, and copy both into pre-application correspondence.
In unitary areas the same functions sit in one organisation, though often in departments that do not speak to each other. Ask for both teams by name.
Working near highway trees during construction
A tree does not need to be felled to be lost. Root severance during service connections and driveway construction kills more street trees than deliberate removal.
BS 5837:2012 sets the framework. The root protection area for a single-stemmed tree is calculated from the stem diameter, and construction within it needs justification, a method statement and supervision. Utility work near trees follows the industry guidance on installing apparatus in proximity to trees, which favours hand digging, trenchless techniques and routing services outside the rooting zone.
The practical measures are consistent:
- Fence the root protection area to BS 5837 specification before any plant arrives, and keep it fenced.
- Where access must cross the rooting area, use ground protection rather than a compacted haul route.
- Hand dig or use a vacuum excavator within the protection area, and cut roots cleanly rather than tearing them.
- Build the driveway surface on a no-dig cellular confinement system rather than excavating a formation.
- Appoint an arboriculturist to supervise the works and to sign off each stage.
Where a scheme affects retained trees, an arboricultural survey to BS 5837:2012 with a tree protection plan and a method statement is what the council conditions and what the highway authority reads.
Commuted sums and replacement planting
Where a highway tree is removed with consent, the authority will normally require replacement planting plus a commuted sum covering the establishment and maintenance of the new tree for a defined period. The sum and the period vary between authorities and are set out in their published charging schedules, so ask for the current figure rather than budgeting from an old project.
Some authorities calculate the value of the lost tree using a recognised amenity valuation method and charge accordingly. That figure can be substantially higher than the cost of a replacement, which is the point.
Replacement planting is rarely one-for-one on the same spot. Utilities beneath the footway, sight lines and pavement width may mean the new tree goes elsewhere in the street, and the species will be chosen from the authority's approved list rather than yours.
Where a development is providing new street trees as part of a highway agreement, expect the same maintenance commitment in reverse, and expect a specification covering pit volume, soil, irrigation and staking. A landscape strategy that sets out those details is easier to agree than a drawing with green circles on it.
Designing an access that avoids the problem
Most of these disputes are avoidable at concept stage.
Move the crossing to the gap between trees, even if that puts the driveway at an angle to the house. Reduce the crossing width to the minimum the authority will accept. Where the frontage has one tree in the middle, consider two narrow crossings either side rather than a single wide one, if the authority permits it. Consider whether off-street parking is needed at all where the street has permit availability.
Where a new road is being built, set the tree pits and the service corridors out together at the start. Retrofitting a service run into a street designed with trees at 8 m centres is how new trees are lost within five years of adoption.
And put the highway tree position on the survey drawing with its canopy and root protection area shown. A drawing that does not show the tree invites an objection that could have been designed out.
Enter your postcode on PlanScope to see which reports your project is likely to need, then draft them and have them reviewed before submission.
PlanScope provides AI-assisted draft reports for planning applications. Reports should be reviewed before submission. We do not guarantee planning approval. This is general guidance, not legal advice; check the position with your local planning authority or a qualified professional before relying on it.
Frequently asked questions
Who owns the tree outside my house?
If the trunk stands within the adopted highway, the highway authority owns and manages it, which is the county council in two-tier areas and the unitary or borough council elsewhere. If the trunk is behind the boundary in your front garden it is yours, even where the canopy overhangs the footway. Ask the highway authority for an adoption extract.
Can planning permission authorise removing a street tree?
No. Planning permission does not override the highway authority's ownership, so a consent showing a driveway across a street tree is not consent to remove it. Removal needs the highway authority's agreement under its own tree policy, and most authorities will only agree where the tree is dead, dying, dangerous or causing damage.
How do I apply for a dropped kerb?
Through a vehicle crossing application to the highway authority under section 184 of the Highways Act 1980. It is separate from planning permission and is judged on highway criteria: visibility, footway construction, drainage, service covers, distance from junctions and the position of street furniture and trees. Apply before fixing the access on the drawings.
Are highway trees covered by Tree Preservation Orders?
Usually not, because the highway authority already owns and controls them. That does not make them less protected. Felling or damaging a highway tree without authority is a criminal matter, and the authority can recover the value of the tree as well as the cost of replacement planting.
What is a commuted sum for a street tree?
A payment to the highway authority covering the establishment and maintenance of replacement planting for a defined period after a tree is removed or a new tree is planted as part of a highway agreement. The figure and the period vary by authority and are published in their charging schedules, so ask for the current rate.
Sources and further reading
This article is general guidance about the planning system in England and, where stated, the rest of the UK. It is not legal or professional advice. Check your local planning authority’s validation requirements and take professional advice for your specific site.