Which Reports Do I Need

What to submit where a protected tree stands on the frontage

7 min readBy PlanScope Editorial Team

A protected tree on the frontage changes the drawings before it changes the policy. Here is what a small householder application needs when a TPO tree sits between the house and the road.

A tree subject to a Tree Preservation Order on the frontage adds three documents to a small application: a tree survey to BS 5837:2012, a tree protection plan showing root protection areas against the proposed works, and an arboricultural method statement explaining how anything inside those areas will be built. Without them a householder application for a driveway, a front extension or a new access is routinely held invalid or refused.

The tree also changes the design, usually before anyone has drawn it. Root protection areas on a narrow frontage frequently leave no room for a conventional driveway build up, and the answer is a different construction rather than a different argument.

How a protected tree changes the application

The tree becomes a material consideration in its own right, and the authority's tree officer becomes a consultee whose view carries real weight. Refusal reasons on these applications tend to cite loss of amenity, harm to the tree's long term health, or an absence of information about effects on the root system.

The practical shift is that the drawings have to show the tree properly. A plan with a circle labelled tree is not enough. The authority expects the stem position surveyed, the crown spread drawn to the measured extent in four directions, and the root protection area plotted as a calculated area rather than an approximation.

Where the works fall outside the root protection area and outside the crown spread, the information requirement shrinks considerably. Establishing that early is the least costly step available, because it may remove the need for a method statement entirely.

Which tree is protected, and by what

There are three separate regimes and they carry different procedures.

A Tree Preservation Order made under the Town and Country Planning Act 1990 and administered under the Town and Country Planning (Tree Preservation) (England) Regulations 2012 protects named trees, groups, areas or woodlands. Works need the authority's consent on a tree works application, with exemptions for dead trees and for removing an immediate risk of serious harm, both subject to notice requirements.

A tree in a conservation area that is not already subject to an Order is protected by section 211 of the 1990 Act. Works require six weeks written notice to the authority, which may respond by making an Order. The protection applies to trees above 75 millimetres in diameter measured at 1.5 metres above ground, with a higher threshold where the work is to improve the growth of other trees.

A condition on a planning permission can also require the retention of trees, and that is enforceable whether or not an Order exists. Check the authority's online Order register and the planning history together, because a tree can be covered by all three.

The survey and categorisation the authority expects

BS 5837:2012 sets the framework. A tree survey records, for each tree, the species, height, stem diameter, crown spread in four directions, height of crown clearance, age class, physiological and structural condition, estimated remaining contribution in years, and a management recommendation.

Trees are then categorised. Category A trees are of high quality with an estimated remaining contribution of at least 40 years, category B moderate quality with at least 20 years, category C low quality with at least 10 years or young trees, and category U trees are those that cannot realistically be retained. A category A tree on the frontage will shape the scheme. A category U tree may be removable with the authority's agreement even under an Order.

The root protection area is calculated, not guessed. For a single stem tree the standard approach gives a radius of 12 times the stem diameter, with the resulting area capped at the figure the standard specifies, and the area may be redrawn to reflect known root distribution provided the total area is maintained. That redrawing is the move that often makes a frontage scheme work.

Where the survey leads into an assessment of effects and mitigation, the output is an arboricultural impact assessment, and the tree survey page sets out what the report covers and who can prepare it. Councils normally expect the author to hold a relevant arboricultural qualification and professional membership, and professional review is strongly advised.

Driving through the root protection area

A conventional driveway build up involves excavating several hundred millimetres and compacting the formation, and both are damaging inside a root protection area. The accepted alternative is a no dig construction: a geotextile separation layer laid on the existing ground, a three dimensional cellular confinement system filled with angular stone, and a permeable surface above.

That construction raises the finished level, which has consequences at the threshold of the house and at the back of the footway. Draw the levels. A no dig driveway shown in principle but with no level information is the most common reason these applications stall at consultation.

Four other details matter inside the root protection area. Services should be routed outside it, or installed by thrust boring at a depth agreed with the arboriculturist. Level changes, including the removal of existing hard surfacing, need specifying rather than leaving to the contractor. No storage of materials, spoil or plant is permitted inside the protective fencing. And the fencing itself needs to be shown on the tree protection plan with its specification, erected before anything else happens on site. Where a public sewer also crosses the frontage, the routing problem compounds, and the approach set out for sites crossed by a public sewer applies alongside the tree constraints.

These are different applications with different forms, and people conflate them.

Pruning or felling a protected tree needs consent under the tree regulations. Building something needs planning permission. If you want both, you generally apply for both, and the tree works application should be supported by a specification referring to the pruning standard rather than a vague request to reduce the crown.

There is a useful exemption. Work on a protected tree that is immediately required to carry out development authorised by a planning permission granted on an application does not need separate tree works consent. The permission has to be a full permission granted on an application, so the exemption does not cover permitted development, and the works have to be necessary to implement what was approved rather than merely convenient.

That has a practical consequence for driveways. A driveway laid under permitted development rights gives you no tree works exemption at all, so any pruning needed to get a vehicle past the crown requires its own consent. Applying for planning permission, even where it may not strictly be needed, sometimes simplifies the tree position.

Replacement planting and the conditions to expect

Where a protected tree is removed with consent, a duty to plant a replacement normally follows, and the replacement tree becomes subject to the original Order. Conditions on consent commonly specify species, size at planting, position and a replacement period if the new tree fails.

On the planning side, expect conditions requiring the approved tree protection measures to be implemented in full, an arboricultural supervision regime with named hold points, and sometimes a requirement for a post completion inspection.

Agree the supervision schedule before the condition is drafted. A condition requiring supervision at every stage on a two week driveway job is disproportionate and is easier to influence before it appears on the decision notice than afterwards.

The document list for a small frontage site

For a householder application affecting a protected frontage tree, a workable pack is:

  1. Application forms, ownership certificate and the correct fee.
  2. Site location plan and block plan with the tree surveyed, crown spread drawn and root protection area plotted.
  3. Existing and proposed levels at the threshold, across the frontage and at the back of footway.
  4. Tree survey and arboricultural impact assessment to BS 5837:2012.
  5. Tree protection plan showing fencing, ground protection and no dig extents.
  6. Arboricultural method statement for any works inside the root protection area.
  7. Construction detail for the no dig build up and the surface finish.
  8. A short Planning Statement addressing amenity, the tree's contribution and the local plan policy on trees.

A Design and Access Statement is not normally required for a householder application unless the site is in a conservation area or a World Heritage Site and the relevant thresholds are met. Check the authority's validation list, since local lists vary.

Enter your postcode on PlanScope to see which reports a constrained frontage site is likely to need. PlanScope provides AI-assisted draft reports for planning applications. Reports should be reviewed before submission. We do not guarantee planning approval. For specialist technical reports, qualified professional input may be required.

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

Do I need separate consent to prune a TPO tree for my approved extension?

Not where the work is immediately required to carry out development authorised by a full planning permission granted on an application. The exemption does not extend to permitted development, and the works have to be necessary to implement the approved scheme rather than simply convenient. Give the authority written notice of what you intend to do and keep the record.

How is the root protection area calculated?

For a single stem tree the standard approach in BS 5837:2012 uses a radius of 12 times the stem diameter, with the resulting area capped at the figure the standard specifies. The area can be redrawn to reflect known root distribution, for example around an existing building, provided the total area is maintained. An arboriculturist should do the redrawing.

Can I lay a driveway over tree roots at all?

Usually yes, using a no dig construction: geotextile separation on the existing ground, a three dimensional cellular confinement system filled with angular stone and a permeable surface above. Finished levels rise as a result, so the threshold and the back of footway levels need drawing. Services should be routed outside the root protection area or thrust bored.

What if the tree is in a conservation area but has no TPO?

Section 211 of the Town and Country Planning Act 1990 requires six weeks written notice to the authority before works to a tree above 75 millimetres in diameter at 1.5 metres. The authority may use that period to make a Tree Preservation Order. Carrying out works without notice is an offence, so submit the notice even for modest pruning.

Will I have to replant if the tree is removed?

Normally yes. Where consent is granted to fell a protected tree, a duty to plant a replacement usually follows and the replacement becomes subject to the original Order. Expect conditions on species, size at planting, position and a period within which a failed tree must be replaced. Agree the specification before consent is issued.

Sources and further reading

tpotreesbs 5837householderdrivewayvalidation

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.

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