Scheduled monument consent: procedure and timescales

Scheduled monument consent is not planning permission and it is not granted by your council. It is granted by the Secretary of State under section 2 of the Ancient Monuments and Archaeological Areas Act 1979, administered in England by Historic England, and it is needed for almost any work that would affect a scheduled monument, including works that no planning application would ever capture.

Ploughing a field to a greater depth than before can need it. So can erecting a fence, laying a water pipe, repairing a collapsed wall, or removing scrub. Carrying out any of those without consent is a criminal offence, and the offence is committed by the person doing the work as well as by the person who caused it.

Who decides and under what power

Scheduling is a national designation applied to monuments of national importance, held on a list maintained by the Secretary of State. It is quite separate from listing, which protects buildings, and a structure can be both scheduled and listed.

Applications for consent are made to the Secretary of State for Culture, Media and Sport. In practice Historic England receives them, advises, and handles the case through to decision. Your local planning authority has no role in granting it, though officers will usually tell you that scheduled monument consent is needed before they determine a related planning application.

That division catches rural owners out. A farm building conversion inside a scheduled area can have planning permission and still be unlawful to carry out.

What works require consent

The Act catches works that would demolish, destroy, damage, remove, repair, alter, add to, flood or cover up a scheduled monument, and works to any part of it. That is a wide net.

The practical list on a rural holding usually includes:

1. Any ground disturbance within the scheduled area, including service trenches, drainage, post holes and tree planting.
2. Changes in cultivation depth or a move from pasture to arable.
3. Erection or removal of fencing, gates, hard standing or tracks.
4. Repairs to standing fabric, including repointing and consolidation.
5. Vegetation clearance where roots or machinery would disturb deposits.
6. Installation of interpretation panels, benches or gates for public access.
7. Flooding or drainage changes that alter the ground water regime beneath the monument.

The Ancient Monuments (Class Consents) Order 1994 grants consent in advance for several defined classes, which is why not every farming operation needs an application. The classes cover matters such as agricultural, horticultural and forestry works of the same kind carried out in the same place during the preceding period, certain works by particular statutory bodies, works urgently necessary for health and safety, and archaeological evaluation carried out under written agreement with the relevant body. The conditions attached to each class are specific, and relying on a class consent without reading its terms is a common route to an offence. Check the current text of the Order before assuming your operation is covered.

The application route and what to submit

There is a standard application form, and the information expected goes beyond what a planning application would require.

Expect to provide a description of the proposed works with drawings, a plan showing the works against the scheduled area boundary, a statement of the significance of the monument and how the works would affect it, photographs of the affected areas, details of the methods and plant to be used, and a statement of ownership. Where the works involve ground disturbance, a written scheme of investigation for any archaeological recording will normally be required either with the application or as a condition.

The significance statement carries the weight. It should describe what the monument is, what makes it nationally important, which parts of it your works touch, and what would be lost or changed. A Heritage Statement prepared for a related planning application can often be extended to cover it, provided the extension addresses the scheduled interest specifically rather than the general heritage context.

Where the monument is buried and its extent is uncertain, an Archaeological Desk-Based Assessment that maps the known and probable extent from the scheduling entry, historic mapping and any previous work is the document that turns a vague application into a decidable one.

Site visits and inspector involvement

Most applications of any substance attract a site visit from an inspector of ancient monuments. The visit is where the case is usually settled, and it is worth preparing for.

Have the works staked out or marked on the ground, have the machinery and method ready to describe, and have someone present who can answer questions about how the works will actually be carried out. Inspectors are generally pragmatic about necessary maintenance and considerably less so about works that could be done elsewhere.

Where the proposal is contested, there is a right to a hearing before the application is determined. That route is used rarely and mostly on cases with a wider public dimension.

Timescales and why they are unpredictable

There is no eight-week clock of the kind that applies to planning applications. The time taken depends on the complexity of the works, whether a site visit is needed, whether further information is requested and whether consultation with other bodies is required.

Historic England publishes service standards for the applications it handles, and those are the figures to plan against. Check the current published standard rather than an assumed period.

Two things reliably extend the process. Applications that arrive without a significance statement generate a request for one, which restarts the assessment. And applications made on behalf of an owner without evidence of the owner's agreement stall until that is produced.

Build the consent into the programme ahead of the planning application where both are needed, not alongside it. A grant of planning permission you cannot implement is of no use, and a refusal of scheduled monument consent after permission is granted wastes the whole exercise.

Conditions and monitoring

Consents are routinely granted subject to conditions. Common ones require works to be carried out under archaeological supervision, restrict the plant and methods used, require a record to be made and deposited, restrict the season in which works may be carried out, and require notification before work starts.

Notification conditions are the ones most often overlooked. Starting work without giving the required notice breaches the consent even where the works themselves are exactly as approved.

Where the monument is in poor condition, the conversation may broaden into repair and management, and the routes available for heritage at risk grants, repairs notices and urgent works become relevant alongside the consent itself.

Unauthorised works and the criminal risk

Carrying out works to a scheduled monument without consent is an offence under the 1979 Act, as is failing to comply with a condition on a consent. The Act also creates offences of damaging a monument and of using a metal detector on a protected site without written consent.

There is no equivalent of the planning system's time limits that make unauthorised works lawful through the passage of time. A scheduled monument damaged twenty years ago remains a scheduled monument that was damaged.

If you discover that works have been carried out without consent, the sensible course is to stop, take advice, record what has happened and approach the regulator rather than wait. Where the works were done in ignorance and the damage is limited, the usual outcome is a retrospective process and a management agreement.

Scheduled monument consent runs in parallel with the planning system rather than inside it, and the statutory duties that shape decisions on listed buildings and conservation areas, set out in sections 66 and 72 and what they require of decisions, do not apply to it.

This is general guidance, not legal advice. Check the position with Historic England or a qualified professional before relying on it.

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