Evidence base for a crematorium or burial ground

Burial ground planning evidence is dominated by hydrogeology, and crematorium evidence is dominated by emissions. Both uses fall outside the use classes, both attract a level of local feeling that few other developments generate, and both are refused more often on water quality or air quality grounds than on anything a designer can draw.

There is also a statutory siting rule for crematoria that predates the modern planning system and still bites. It catches sites that pass every planning test.

Where burial and cremation uses sit in policy

A crematorium is a sui generis use, outside every class in the Use Classes Order, so express permission is always needed. Use of land as a burial ground is a material change of use and likewise falls outside the classes. An extension to an existing churchyard or municipal cemetery is normally a further change of use of the additional land rather than an operational development question.

Development plan support is usually thin. Few local plans allocate land for burial, and many have a policy on community facilities that can be read across. Where the authority has published a burial capacity assessment, cite it, because an evidenced local shortfall in burial space is the strongest policy argument available and it is the one that carries committees.

Then deal with the statutory rule. The Cremation Act 1902 prevents a crematorium being constructed nearer than 200 yards to a dwellinghouse without the written consent of the owner, lessee and occupier of that house, nor within 50 yards of a public highway, nor in the consecrated part of a burial authority's burial ground. That is a separate legal constraint from planning policy, it is measured to the crematorium building, and a site that fails it cannot be made to work by argument. Check it with a dimensioned plan at the outset and say in the application that you have.

Hydrogeological risk assessment for burial

Burial introduces organic and microbiological load into the ground, and the Environment Agency assesses new burial grounds and extensions on that basis. The document it expects is a hydrogeological risk assessment, prepared by a hydrogeologist, following the Agency's published approach to cemeteries and groundwater.

The assessment works through a conceptual model: the geology beneath the site, the aquifer designation, groundwater levels and their seasonal variation, the direction of flow, and the receptors down-gradient, whether those are abstractions, springs, watercourses or field drains. It then sets out the burial depths proposed, the thickness of unsaturated subsoil beneath the base of the deepest grave, and the resulting attenuation.

Indicative separation distances are published by the Agency, covering distance to potable groundwater abstractions, to watercourses and springs, and to field drains, together with an expectation of a minimum thickness of subsoil below the grave base and clearance above the water table. Verify the current figures against the Agency's guidance rather than working from a figure quoted in an older report, and be ready for the Agency to require a water level monitoring period across a wet winter rather than a single measurement.

Two design responses usually resolve a marginal site. Restrict burial to the part of the site with the deepest unsaturated zone, shown as a zoning plan. And reduce grave depth, accepting single rather than double-depth interment in the sensitive area. Both are conditionable and both are better than arguing about a model.

Source protection zones and groundwater

Where the site lies within an inner source protection zone around a public water supply, burial is unlikely to be acceptable at all, and that should be established before any other work is commissioned. The zone boundaries and the aquifer designation are the first two things to check.

A crematorium raises different water questions. The cremator has no liquid discharge of consequence, and the site does have a surface water drainage question from a large car park, which brings a water quality treatment requirement of its own, and a foul connection for the chapel and offices.

Emissions and abatement for a crematorium

Cremation is a regulated process under the environmental permitting regime, with local authority pollution control as the regulator and a process guidance note setting the expected standards. Mercury abatement from dental amalgam is the central requirement, along with limits on other emissions and a determined stack height.

The planning consequences are physical, so resolve them at design stage. Abatement plant needs a plant room of real size, usually adjacent to the cremator hall. Stack height is determined by dispersion requirements rather than by architectural preference, and a stack tall enough to satisfy the emissions case can dominate a low building in open countryside. An Air Quality Assessment covering the stack, the dispersion modelling and the receptors should be prepared by a suitably qualified author, and its conclusions should be reflected in the elevations rather than added afterwards.

Say plainly in the application that the permit is a separate consent and that the planning decision does not authorise the process. Officers and objectors both conflate the two.

Traffic, parking and cortege movements

The traffic profile is unusual and it is the second most common ground of objection. Movements arrive in a concentrated burst before each service, leave in a burst afterwards, and the two overlap where services are scheduled tightly.

A Transport Assessment should model the peak service rather than a daily total, and it should state the assumed congregation size and service frequency, because those two numbers drive everything. Overspill parking on a rural road is the issue that generates the objection letters, and a designed overflow area with a bound surface answers it better than a management commitment.

Landscape design and long term management

These are landscape projects as much as building projects. A crematorium is a small building in a large setting, and a burial ground is almost entirely landscape.

The evidence should cover the setting in views from the surrounding area, the internal structure of the site, the memorial and garden of remembrance areas, tree planting with a realistic establishment period, and boundary treatment that gives privacy without creating a blank edge. Where the site is prominent, a Landscape and Visual Impact Assessment prepared to the recognised guidelines with agreed viewpoints is proportionate.

Long-term management is a planning matter here in a way it is not on most schemes, because a burial ground has to be maintained in perpetuity and a memorial area accumulates obligations. Set out who maintains the site, how it is funded, and what happens when burial capacity is exhausted. Natural burial areas need a management plan describing the meadow or woodland regime, and that plan is what makes the ecological claims credible.

Noise, privacy and neighbouring properties

The sensitivities run both ways. Neighbours object to traffic, to the stack, and to overlooking of their gardens by mourners. Mourners need privacy from the neighbours.

Design for both. Screen the committal area and the graveside from any adjoining private garden and from public footpaths, using level changes and planting rather than fencing alone. Locate the car park and the service yard away from the residential boundary. Where music systems, bells or a public address are proposed, an assessment of break-out noise is worth including, and plant noise from abatement equipment and ventilation should be assessed under the industrial and commercial sound standard.

Ground disturbance on a large scale also brings archaeology into scope, and an Archaeological Desk-Based Assessment drawing on the Historic Environment Record is the normal first step, with field evaluation where the record justifies it.

Consultation with the Environment Agency

Approach the Agency before submitting. For a burial ground its position on the hydrogeological risk assessment effectively determines the outcome, and a pre-application discussion tells you whether the site is viable, which parts of it are usable, and what monitoring period will be expected.

1. Establish the aquifer designation and any source protection zone.
2. Ask what level of hydrogeological risk assessment the Agency expects for the scale proposed.
3. Agree the groundwater monitoring period and the number of monitoring points.
4. Confirm the separation distances the Agency is currently applying.
5. Only then commission the intrusive investigation and the assessment.

Browse the 66 report types to see which of these your scheme is likely to need. This is general guidance rather than legal advice, so 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. For specialist technical reports, qualified professional input may be required.