Reports for a dropped kerb and off-street parking space
A domestic crossover involves two approvals: a section 184 highway application and, where the front garden surfacing falls outside Class F, a householder planning application. The document list is shorter than most people expect.
Most domestic dropped kerbs need two separate approvals, and the one people forget is the planning half. The dropped kerb planning reports question therefore splits in two: an application to the highway authority to alter the kerb and footway, and, if the front garden works fall outside permitted development, a householder planning application for the hardstanding and the new access. Get the order right and a straightforward crossover needs almost no technical reports at all.
The trap is the surfacing. Since 2008, a new impermeable hard surface of more than five square metres in the front garden of a house has needed planning permission unless the water is dealt with on your own land.
Whether planning permission is needed at all
Class F of Part 1 of Schedule 2 to the General Permitted Development Order 2015 allows a hard surface within the curtilage of a house. For land between the house and a highway the allowance is conditional: either the surface must be porous, or the run-off must be directed to a permeable area within the curtilage, such as a border or a soakaway. Gravel, permeable block paving and reinforced grass all satisfy it. A slab of impermeable concrete draining to the pavement does not.
Two further points catch people out. Permitted development rights apply to houses, not to flats or to maisonettes, so a crossover serving a converted building almost always needs an application. And an Article 4 direction can remove Class F in a conservation area or on an estate with its own direction, which you can check on the council's mapping or through the national planning data service.
Forming the access itself is separate. Part 2 Class B allows the formation of a means of access to a highway required in connection with permitted development, but not where the access is onto a trunk road or a classified road. If your house fronts an A or B road, expect to need permission for the access even if the surfacing complies.
The highway crossover application
The vehicle crossing is granted under section 184 of the Highways Act 1980 by the local highway authority, which is the county council or the unitary authority rather than the district in two-tier areas. It is a separate application with its own fee and its own technical standards, and the authority will only allow the works to be carried out by an approved contractor or by its own term contractor.
The standards the authority applies typically cover:
- a minimum depth of hardstanding behind the back of footway so that a parked car does not overhang the pavement
- the crossing width, including the tapers on each side
- construction depth and materials, since the footway has to carry vehicle loads
- the position relative to junctions, bus stops, pedestrian crossings and street furniture
- drainage, so that water does not run from the drive into the carriageway
A refusal at this stage is usually about position rather than principle. Authorities do not want vehicles reversing out within the visibility splay of a junction, and they will not drop a kerb where the resulting manoeuvre blocks a cycle lane.
Surface water and permeable paving
Front gardens matter for drainage at street level, which is why Class F is drafted the way it is. The straightforward route is a permeable block paving build-up with a sub-base that stores water and lets it soak away, which keeps the works within permitted development and avoids an application altogether.
Where the ground is clay or the water table is high, a soakaway may not work. In that case the compliant answer is to lay a conventional surface that falls to a gravel border or a rain garden inside the boundary, sized to take the run-off from the paved area. Where neither is possible, you are in application territory, and the case officer will want a short drainage note explaining why. The reasoning is the same one set out in our piece on reports for a self-build plot served by a shared private drive, where surface water from the access had to be dealt with inside the site.
Trees, verges and apparatus in the footway
Street trees kill more crossover applications than visibility does. A tree in the verge in front of the house, whether or not it is protected by a Tree Preservation Order, belongs to the highway authority, and the arboricultural officer will object where the excavation would cut roots inside the root protection area calculated under BS 5837:2012. Moving the crossover two metres along the frontage is often the whole answer.
In your own front garden, a protected tree needs a separate application for works, and in a conservation area you must give the council six weeks notice before pruning or felling. Do that before you order the paving.
Utility apparatus is the other cost. Stop taps, gas covers, telecommunications chambers and lighting columns all sit in the footway, and diverting or raising them is charged to the applicant by the undertaker, not the council. Ask the highway authority to identify apparatus during the crossover application rather than finding a chamber when the ground is open.
Visibility and the manoeuvre
The highway authority assesses whether a car can leave the drive safely. On a residential street with a 20mph or 30mph limit, the requirement is usually stated as a sight line measured from a set-back point behind the back of footway, along the channel line in each direction, with nothing above a low height inside the triangle. Manual for Streets is the reference most authorities work from.
Hedges are the usual obstruction. A 1.8 metre hedge on the boundary will have to be reduced within the splay and kept down, and the authority can require that as a condition of the crossover.
Where the road is busier, the authority may require a turning area so that the vehicle can leave in forward gear. That has a knock-on effect on the amount of front garden lost, which is where the design starts to matter to the planning officer instead. The same tension between access geometry and site layout runs through our note on the reports needed for a drive-through unit on a retail park, at a different scale.
Conservation areas, listed buildings and classified roads
In a conservation area, Class F still applies to the surfacing, but the character judgement returns through other routes. An Article 4 direction may remove the rights. If the house is listed, the curtilage is included, and forming a new access with gate piers removed or a boundary wall breached needs listed building consent under the Planning (Listed Buildings and Conservation Areas) Act 1990. Demolishing part of a boundary wall in a conservation area can also require permission in its own right.
On a classified road the access needs planning permission, and the application will be consulted on by the highway authority. Expect conditions about surfacing materials, gradient over the first few metres and the retention of visibility.
The document list for a straightforward case
For a house on an unclassified road, with permeable surfacing and no protected trees, the honest answer is that you need no technical reports at all. The section 184 application, a location plan and a sketch showing the crossing width and the depth of hardstanding will do.
Where a planning application is required, the pack is short:
- Location plan at 1:1250 with the site edged red, and a block plan at 1:200 or 1:500.
- Existing and proposed frontage drawings showing levels, the crossing width, the surfacing build-up and any boundary treatment removed.
- A short drainage note, with a soakaway calculation if one is proposed.
- A tree note where any tree stands within influencing distance of the works, referencing the root protection area and the no-dig construction proposed.
- A heritage note where the house is listed or in a conservation area, explaining the effect on the character of the frontage.
Fees are set nationally and are indexed, so check the current schedule before you submit rather than copying a figure from an old application. The report types by category page shows what each of those notes looks like as a full document if your case turns out to be less simple than it first appeared.
This is general guidance, not legal advice; check the position with your local planning authority or a qualified professional before relying on it. Only a Lawful Development Certificate formally confirms that works fall within permitted development. If you want to know which documents your own frontage needs, enter your postcode on PlanScope and answer the guided questions. PlanScope produces AI-assisted drafts that should be reviewed before submission, and we do not guarantee planning approval.
Frequently asked questions
Do I need planning permission for a dropped kerb?
You need a separate highway application under section 184 of the Highways Act 1980 in every case. Planning permission is needed for the access itself only where the road is classified or a trunk road, and for the hardstanding only where more than five square metres of the front garden is surfaced impermeably without run-off being dealt with inside the curtilage.
What counts as permeable paving under Class F?
Either a porous surface such as gravel, reinforced grass or permeable block paving over a storage sub-base, or a conventional surface laid so that water drains to a border, rain garden or soakaway within your own boundary. Draining to the pavement or the road takes the works outside Class F and requires an application.
Who carries out the kerb works?
The highway authority either does the work itself through its term contractor or requires an approved contractor from its published list, because the footway has to be rebuilt to carry vehicle loads. You pay for the works and for any diversion of utility apparatus such as stop taps or telecommunications chambers found in the footway.
Can a street tree stop the crossover?
It can. The tree in the verge belongs to the highway authority, and its arboricultural officer will object where excavation would cut roots inside the root protection area calculated under BS 5837:2012. Repositioning the crossing along the frontage, or a no-dig construction over the root area, resolves most of these objections.
How long does the process take?
Crossover applications are handled under the highway authority's own timescales, which are commonly several weeks for assessment and longer for the works to be programmed. A householder planning application is determined in eight weeks from validation. Apply for both together if permission is needed, rather than waiting for one before starting the other.
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.