Milestones, pumps and street furniture as heritage assets

A milestone on a verge, a village pump on a green, a Victorian pillar box set into a wall and a cast iron fingerpost at a crossroads can all be listed buildings in law. A listed street furniture milestone has exactly the same statutory protection as a listed house: it is an offence under section 9 of the Planning (Listed Buildings and Conservation Areas) Act 1990 to demolish, alter or extend it in a way that affects its character as a building of special interest, without listed building consent.

The practical problem is that almost nobody involved in day-to-day highway work knows these things are there. The damage is rarely deliberate. It is a kerb realignment, a verge-mowing contract, a new bollard line or a utility trench, carried out by people who were never told that the object they are working around is on the National Heritage List for England.

How small structures came to be listed

The statutory definition of a building in section 336 of the Town and Country Planning Act 1990 includes any structure or erection, which is why a horse trough and a boundary stone can qualify. Listing covers the structure itself and, under the 1990 Act, objects or structures fixed to a listed building or within its curtilage that formed part of the land before 1 July 1948.

Three waves of designation account for most of what is now protected. Milestones and turnpike markers were listed in large numbers as surviving evidence of the turnpike road network. Pillar boxes were assessed as a national series, with the rarer early types and unusual royal ciphers protected. Pumps, troughs, standpipes and wells were listed where they record how a settlement got its water before mains supply.

Each entry on the National Heritage List for England has a list entry number, a grid reference, a short description and a date of listing. The description is not a definition of what is protected, a point Historic England states clearly: the whole structure is listed, whatever the description happens to mention.

Highway works and accidental damage

Most harm to listed street furniture happens during routine maintenance. The pattern is consistent.

• Resurfacing raises the carriageway or footway level, burying the lower part of a milestone or a pump plinth so the inscription sits below ground
• Kerb realignment at a junction clips the base of a fingerpost
• A new cycle lane or build-out needs the object moved, and it is lifted without consent
• Strimmers chip painted cast iron, and repeated damage removes the historic paint layers that evidence earlier colour schemes
• A utility trench cuts through the foundation of a structure that was never recorded on the statutory undertaker's plans
• A pillar box is replaced with a modern box when the wall it sits in is rebuilt

None of that is lawful simply because it was unintentional. Section 9 creates a strict offence, and the fact that a contractor did not know the structure was listed is not a defence to the works having been carried out, though it is relevant to how the authority responds.

Where a scheme is in design, the heritage check costs almost nothing and the search takes minutes: the National Heritage List for England is searchable by map, and the designation datasets are published on planning.data.gov.uk. Put listed structures on the constraints layer the highway designer actually opens, as well as the planning consultant's.

Who is responsible for repair

Ownership of small highway structures is frequently unclear, and this is the single biggest obstacle to getting anything repaired.

A milestone on a verge is usually, but not always, in the highway authority's maintainable extent. A pump on a village green may be owned by the parish council, by a charity, by the lord of the manor's successor or by nobody identifiable. Pillar boxes are owned by the postal operator. A trough erected by a Victorian subscription association may have no surviving owner at all.

There is no statutory duty on a listed building owner to repair it. What exists instead are powers: a local authority may serve an urgent works notice under section 54 of the 1990 Act to secure the preservation of an unoccupied listed structure and recover the cost, and a repairs notice under section 48 can precede compulsory acquisition where a listed building is deliberately left to decay. Those powers are used sparingly on small structures, mostly because of the cost of establishing ownership.

In practice repairs get done by parish councils, local history societies and conservation volunteers working with the conservation officer. Our note on reinstating lost features and the evidence a council expects explains how that evidence is assembled when something has already been lost.

Relocation during a road scheme

Moving a listed structure needs listed building consent, and the application has to address the loss of the relationship between the object and its place. A milestone matters partly because it is at that distance from that town on that road. Lift it 40 metres to a safer verge and some of the significance goes with the move.

The sequence that gets consent, in my experience of reading these applications, is this.

1. Establish significance first, in a short Heritage Statement that covers the structure, its setting and its group value with other markers on the same route.
2. Test alternatives that avoid the move, including a redesign of the kerb line, a protective bollard, or accepting a slightly tighter radius.
3. Where a move is unavoidable, propose the minimum displacement, on the same side of the road, at the same orientation, at the original level relative to the ground.
4. Record the structure before the move to the appropriate Historic England recording level, including the inscription, the fixings and the below-ground detail.
5. Specify reinstatement in the same bedding material, with lime mortar where the original was lime bedded, and a method statement naming the supervising conservation specialist.

Where the structure is listed at Grade I or Grade II*, the application carries extra notification duties, which our note on Grade I and II* applications and referral requirements sets out.

Relocation and reinstatement is the point at which a Historic Building Recording exercise earns its cost, because the record is what allows accurate reinstatement if the structure is damaged in transit.

Local listing where no designation exists

Plenty of interesting small structures are not listed, and never will be: interwar concrete road markers, mid-century telephone kiosks outside the protected series, coal duty posts, parish boundary stones of no great age.

Local heritage lists are the route. These are non-statutory registers maintained by councils, often with civic society input, and inclusion makes the structure a non-designated heritage asset. National policy requires the effect of an application on the significance of a non-designated heritage asset to be taken into account, with a balanced judgement having regard to the scale of harm and the significance of the asset. That is weaker than the statutory duties, and it is not nothing.

Getting a structure locally listed is usually a matter of a short nomination to the conservation team with a photograph, a location, a note of what the structure is and why it matters locally, and any documentary evidence. No consent regime follows, so the protection works through decision-making rather than through an offence.

Reporting damage

If you find a listed structure damaged, buried or missing, the practical steps are short.

Photograph it with something for scale and note the date and location, ideally with a grid reference or a what3words position. Find the list entry number on the National Heritage List for England. Report it to the council's conservation officer, naming the list entry, and copy the highway authority if the structure is in or beside the highway. Where the structure has gone entirely, ask the conservation officer whether the authority will pursue the matter and whether a record of its former position exists in the Historic Environment Record.

Do not attempt to clean, repaint or re-set anything yourself. Removing paint layers from cast iron destroys evidence, and re-bedding in cement mortar causes the exact kind of slow damage that consent regimes exist to prevent.

The honest uncertainty here is enforcement capacity. Conservation teams are small, the offences are hard to prove against a contractor years later, and prosecutions for damage to small structures are rare. Which makes the pre-works heritage check, and a conservation note in the highway contract, worth far more than any remedy afterwards.

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This is general guidance, not legal advice; check the position with your local planning authority or a qualified professional before relying on it. PlanScope provides AI-assisted draft reports for planning applications. Reports should be reviewed before submission. We do not guarantee planning approval.