EIA screening opinions: the request and the three weeks

Ask for an EIA screening opinion and the local planning authority has three weeks from receipt to adopt one, unless you agree a longer period in writing. That short deadline is the reason screening is worth requesting before you submit rather than after, because a screening opinion adopted at application stage can add sixteen weeks to determination and an environmental statement to the budget. The request itself is quick to prepare. The consequences of skipping it are not.

When a request is worth making

Screening under the Town and Country Planning (Environmental Impact Assessment) Regulations 2017 answers one question. Is the proposal Schedule 1 development, which always needs an environmental statement, or Schedule 2 development likely to have significant effects on the environment by virtue of factors such as its nature, size or location.

Request an opinion when the answer is arguable. A scheme sitting just under a Schedule 2 column 2 threshold, a site inside or next to a sensitive area, a project with an unusual effect such as odour, lighting or groundwater, or a phased scheme where the cumulative position with earlier consents is unclear. Also request one when a funder or a joint venture partner needs certainty before committing.

Do not request one where the position is obvious in either direction. A negative opinion on a plainly sub-threshold scheme wastes three weeks. A positive opinion on something obviously caught by Schedule 1 tells you nothing you did not already know, and you would be better spending the time on a scoping request.

What the request has to contain

Regulation 6 sets the content, and an incomplete request does not start the clock. The authority needs a plan sufficient to identify the land, a description of the development including its physical characteristics and location, and a description of the aspects of the environment likely to be affected. You may also describe the likely effects and any features or measures proposed to avoid or prevent adverse effects of that scale.

That last point is where the drafting skill sits. Since the 2017 Regulations the authority may take into account measures designed into the scheme to avoid or prevent effects of that scale, so a request that explains the embedded mitigation is doing real work. Embedded means designed in and secured, such as a retained buffer to a watercourse, a fixed construction route or a permanent acoustic barrier, rather than a promise to write a management plan later.

Keep the document short. Ten to twenty pages with the plan, a description, a constraints review and a topic-by-topic screening table against Schedule 3 selection criteria reads better than a hundred pages that force the officer to search for the answer. State clearly which Schedule 2 category and threshold you say applies.

Schedule 2 categories and the thresholds that bite

Schedule 2 lists project categories in column 1 with applicable thresholds and criteria in column 2. Development below the column 2 threshold is outside the regime unless it is in a sensitive area.

Two traps recur. First, exceeding a threshold does not make a scheme EIA development, it only means screening is required and the significance test applies. Second, in a sensitive area the thresholds fall away, so any development within the relevant category is screened. Sensitive areas include SSSIs, National Parks, National Landscapes, World Heritage Sites, scheduled monuments and the Broads, and proximity matters as well as the boundary itself.

Cumulative effects belong in the request. Where the site forms part of a wider allocation or follows earlier phases, the authority is entitled to look at the whole, and a request that hides the wider scheme invites a challenge to the opinion later.

The three weeks and how it is used

The authority must adopt and send the opinion within three weeks of receiving the request, or within a longer period agreed in writing. In practice the officer will often ask for more information under the Regulations, which resets the position, so expect a call in week one if the description is thin.

The opinion must give reasons whichever way it goes. A negative opinion has to state the main reasons by reference to the relevant Schedule 3 criteria, which is useful to you, because those reasons are the record you rely on if a third party questions the decision later.

If no opinion is adopted in time, or you disagree with a positive one, you can ask the Secretary of State for a screening direction. That route takes longer and is worth using when the difference is a year of programme rather than a point of principle.

What a positive opinion does to the programme

A positive screening opinion changes four things at once. The determination period becomes sixteen weeks rather than thirteen. The application must be accompanied by an environmental statement prepared by competent experts, which the EIA Regulations require and which no automated draft can substitute for. Publicity requirements widen, and consultation with statutory consultees becomes formal. And the evidence base itself grows, because topic chapters need baseline survey data that is often seasonal.

Ecology is usually the critical path. Bat emergence surveys run between May and September, great crested newt eDNA sampling sits between 15 April and 30 June, and a screening opinion adopted in October can mean a submission the following autumn rather than the following spring.

Build the sequence backwards from the survey seasons. Screening, then a scoping request, then baseline surveys in season, then assessment, then the statement. Attempting the surveys and the screening in parallel usually produces data collected to the wrong scope.

Revisiting or challenging an opinion

A screening opinion is not permanent. If the scheme changes materially, ask for a fresh opinion rather than relying on the old one, because an authority can screen at any time before determination and a late positive opinion is the worst outcome available.

Third parties sometimes challenge a negative opinion by judicial review, and the ground is normally that the authority failed to consider a relevant matter or gave inadequate reasons. Your protection is a request document that put the awkward issues in front of the officer explicitly, along with the reasoned opinion that answers them.

Where an opinion is negative but the scheme still raises one or two genuine environmental issues, deal with them as ordinary supporting documents. A Planning Statement that explains the screening outcome, together with the topic reports the validation list requires, keeps the application coherent. Browsing the full set of report types against your constraints list is a quick way to see what a non-EIA scheme still owes the council.

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. Enter your postcode on PlanScope to see which reports your site is likely to need.