Screening opinion requests and what they save you
A screening opinion answers one question: is this environmental impact assessment development? The request costs days. Getting the answer wrong costs months.
A screening opinion is the local planning authority's formal answer to one question: is this proposal environmental impact assessment development. Get a negative opinion and you can submit without an Environmental Statement. Get a positive one and the assessment becomes the largest single item in the evidence budget and adds months to the programme.
The request itself costs a few days of consultant time. What it buys is certainty, and certainty is worth a great deal on a scheme where a funder, a purchaser or a joint venture partner is about to commit.
What the opinion decides
The Town and Country Planning (Environmental Impact Assessment) Regulations 2017 divide development into two lists. Schedule 1 development always requires assessment. Schedule 2 development requires it where the proposal is likely to have significant effects on the environment by virtue of factors such as its nature, size or location.
Schedule 2 is where almost every real argument happens. A proposal falls within Schedule 2 if it is of a description in column 1 of the schedule and either meets the threshold in column 2 or is in a sensitive area.
For urban development projects, the column 2 thresholds turn on the area of non-residential development, the number of dwellings and the overall site area. For other categories, the thresholds are expressed in hectares, floorspace or capacity depending on the activity.
Sensitive areas are the trap. Where a site sits in a sensitive area as the regulations define it, the column 2 threshold does not apply at all, and a small scheme can be Schedule 2 development on the strength of its location alone. Check that before you conclude a proposal is below threshold.
The screening judgement itself
Being Schedule 2 development does not mean assessment is required. It means the authority has to decide whether environmental effects of that order are likely, applying the selection criteria in Schedule 3 of the regulations.
Those criteria group into three: the characteristics of the development, including its size, cumulation with other development, use of natural resources, waste, pollution and risk of accidents. The location of the development, including the environmental sensitivity of the area and the absorption capacity of the natural environment. And the types and characteristics of the potential impact, including their extent, magnitude, probability, duration and reversibility.
Cumulation is the criterion most often underplayed in requests. An authority considering a 140 unit scheme next to a consented 200 unit scheme is entitled to look at both.
What the request has to contain
The regulations set a minimum, and the requests that come back quickly do rather more than the minimum.
The required content is a plan identifying the land, a description of the development including its physical characteristics and location, and a description of the likely effects of the development on the environment.
In practice, include: the site area stated in hectares, the unit count and floorspace by use, a constraints plan showing designations within a stated radius, a short assessment against each Schedule 3 criterion, a note on cumulative effects naming the other schemes considered, and an explanation of the mitigation embedded in the scheme design.
That last one matters. The authority may take account of features of the proposal designed to avoid or prevent adverse effects on that scale, provided they are an integral part of the scheme rather than mitigation bolted on to escape assessment.
Timescale, silence and the fallback
The authority has three weeks to adopt a screening opinion, or a longer period agreed in writing. Authorities frequently ask for an extension, and agreeing a realistic one is usually better than insisting on three weeks and getting a cautious opinion.
If no opinion is adopted within the period, the regulations allow the applicant to ask the Secretary of State for a screening direction. That takes longer than a cooperative extension and it is a route to use when an authority has gone quiet rather than when it has asked for more time.
Where the authority does not have enough information, it may ask for more before adopting an opinion, and the clock restarts. Anticipating the questions in the original request is the single most effective way to keep the three weeks intact.
Whether a fee is payable
A request for a screening opinion is not a planning application, and it has not attracted a fee in the national fee schedule in the way an application does. The schedule is amended from time to time, so confirm the current position with the authority before submitting rather than assuming.
The real cost is the preparation. Consultant time to assemble the constraints picture, describe the effects and write the Schedule 3 assessment is the expenditure, and it is small in the context of a scheme approaching Schedule 2 thresholds.
What getting it wrong costs
| Failure | Consequence |
|---|---|
| Submitting EIA development without an Environmental Statement | The authority cannot grant permission until the assessment is carried out, and determination stalls |
| Assuming a site is below threshold when it is in a sensitive area | Screening reopens mid-determination, with survey seasons potentially missed |
| A permission granted for EIA development without assessment | Vulnerable to challenge, and a quashed permission is the worst outcome available |
| Positive screening discovered late | Determination period extends to 16 weeks and the evidence base has to be rebuilt |
| No screening opinion on file at sale | Purchasers and funders price the uncertainty, or decline |
The middle row is the one that ends schemes. An authority that grants permission for development that should have been assessed has made a decision open to judicial review, and the consequences fall on the developer rather than on the authority.
Missing an ecology window because screening reopened in September is the version of this that happens most often on residential sites, and it is why the ecology survey calendar should be checked at the same time as the screening question rather than afterwards.
Scoping as the next step
Where the opinion is positive, the next formal step is a scoping opinion. The applicant asks the authority to state the information to be included in the Environmental Statement, and the authority consults the statutory bodies before responding within the period the regulations set.
Scoping is worth doing even though it is optional, for two reasons. It binds the authority's expectations, which limits late requests for additional chapters. And the consultee responses gathered through it are the closest thing available to a preview of the objections.
An Environmental Impact Assessment must be prepared by competent experts under the 2017 Regulations, and the Environmental Statement has to be accompanied by a statement of the expertise behind it. A draft document can structure the chapters and gather the policy references, but the assessment work is the professional's.
Deciding whether to request one at all
Three situations where a request is worth making.
Where the proposal is close to a column 2 threshold on any measure. Close means within a margin that a design change could cross, because schemes grow between appraisal and submission.
Where the site is in or near a sensitive area, whatever the scale.
Where a third party needs certainty. Funders, land promoters and purchasers routinely ask for a negative screening opinion as a condition, and producing one at appraisal stage removes a diligence point that would otherwise surface at the worst moment.
And one situation where it is not worth it: a proposal clearly below every threshold, outside any sensitive area, with no cumulative issue. Requesting an opinion there invites an authority to think about a question nobody was asking.
An illustrative case. A promoter has an option on 4.6 hectares for 148 dwellings, which sits below the dwelling threshold and below the overall area threshold on the numbers as drawn. The design team wants a larger area of public open space, which would take the red line to 5.2 hectares. That change crosses a threshold. A screening request before the layout is fixed costs a fraction of discovering the point after submission.
Where the whole evidence base is being scoped, the full list of report types a scheme may need is worth reviewing alongside the screening question, and our own pricing is one free report, £50 per report, or £150 per month on the Professional tier.
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.
Frequently asked questions
What does a screening opinion actually decide?
Whether a proposal is environmental impact assessment development under the 2017 Regulations. Schedule 1 development always requires assessment. Schedule 2 development requires it only where environmental effects on that scale are likely, judged against the selection criteria in Schedule 3 covering the characteristics of the development, its location and the nature of the potential impacts.
Do thresholds still apply in a sensitive area?
No. Where a site lies in a sensitive area as the regulations define it, development of a description in column 1 of Schedule 2 falls within the schedule regardless of the column 2 threshold. A small scheme can therefore need screening on the strength of its location alone, which catches out proposals assumed to be too small.
How long does an authority have to respond?
Three weeks from receipt of the request, or a longer period agreed in writing. Authorities often ask for an extension, and agreeing a realistic one usually produces a better considered opinion than insisting on three weeks. If no opinion is adopted, the applicant may ask the Secretary of State for a screening direction instead.
Can embedded mitigation keep a scheme out of assessment?
Features designed to avoid or prevent adverse effects on that scale can be taken into account, provided they are an integral part of the scheme rather than measures added to escape assessment. Describe them as design decisions with drawings, not as commitments to be secured by condition, or the authority will discount them.
When is a screening request not worth making?
Where a proposal is clearly below every relevant threshold, outside any sensitive area and raises no cumulative issue with nearby consented schemes. Requesting an opinion in that situation invites the authority to consider a question nobody was asking. Everywhere near a threshold or a designation, request one.
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.