BREEAM assessors and who can run a pre-assessment
A BREEAM pre-assessment is an estimate, not a certificate, and only an assessor licensed by BRE for that scheme can produce one. Here is what it proves at planning stage and how councils condition the rating.
A BREEAM pre-assessment submitted with a planning application has to come from a licensed assessor, and officers increasingly check that before they read the score. The document is an estimate of the rating a building would reach if it were formally assessed. It is not a certificate. BRE issues certificates against a completed assessment, and a BREEAM pre-assessment is one assessor's reasoned opinion about where a scheme sits today. Councils that ask for one want to know whether the rating in their local plan is realistic on this site, at this scale, with this design.
What the document is doing at planning stage
Adopted local plans that use BREEAM usually set a rating for new non-domestic floorspace above a stated threshold, often 500 m² or 1,000 m², and often Excellent. The policy is the test. The pre-assessment is the evidence that the test can be met.
An assessor working at outline or early full application stage builds a credit tracker. Every credit in the relevant scheme is marked as targeted, possible or not achievable, with a note on what each one depends on and who owns it. The totals give a percentage, which maps onto the rating bands.
| Rating | Score required |
|---|---|
| Outstanding | 85% or more |
| Excellent | 70% or more |
| Very Good | 55% or more |
| Good | 45% or more |
| Pass | 30% or more |
The percentage alone does not settle it. Each rating carries minimum standards, so a scheme can be holding enough credits for Excellent on paper and still fall short because it missed a mandatory item under energy or water metering. That catches more projects than a weak headline score does.
Who is allowed to run one
An assessor licensed by BRE for the relevant scheme, and nobody else. Licences are scheme specific. New Construction, Refurbishment and Fit-Out, In-Use and Communities are separate qualifications, and an assessor licensed for one of them cannot sign for another. Assessors train with BRE, sit the examination, and then work under a licence that BRE audits and can withdraw.
An architect who has read the technical manual is not an assessor, however well they know it. Nor is a sustainability consultant whose licence has lapsed. When a council conditions a rating, the discharge submission will eventually be a certificate, and only a licensed assessor can produce the assessment behind it.
The scheme also recognises a separate accredited professional role within the management section, with credits tied to that person being appointed early and attending design team meetings. Those credits are lost retrospectively. Check the current manual wording before you count them, and use a professional reviewer if you want a second opinion on the tracker before it goes in.
The credits that are decided on the first sketch
Orientation, depth of plan, glazing ratio and form factor set the energy performance credits long before anyone models anything. Change them at technical design and the whole tracker moves.
Ecology credits depend on the ecologist being appointed before the layout is fixed, not after, and on their recommendations surviving into the landscape drawings. Transport credits depend on the accessibility of the site, which you cannot alter. Surface water run-off credits sit alongside the drainage strategy and are usually won or lost by whether attenuation and treatment were designed into the site layout or squeezed in later.
An illustrative example. A 1,600 m² business unit on a brownfield edge-of-centre site scores well on land use because the ground is previously developed, scores badly on transport because there is one bus an hour, and ends up depending on energy and materials credits to clear 70%. If the photovoltaic array is value engineered out after permission, the rating falls and the condition bites.
Evidence at design stage and after construction
A formal assessment runs in two stages. The design stage assessment produces an interim certificate once BRE has quality assured the evidence. The post-construction stage confirms what was actually built and produces the final certificate.
Evidence at those stages is specific: stamped drawings, specification clauses, energy model outputs, commissioning records, manufacturer declarations, the ecologist's report, delivery notes for responsibly sourced materials. A pre-assessment has none of that. It has intentions.
That gap is the honest weakness of the document, and the reason a careful assessor writes the dependency next to every credit rather than just the tick.
Conditions that tie the permission to a rating
Most councils secure the rating with two conditions. One requires a design stage assessment and interim certificate before development above ground level, and one requires the post-construction certificate before first occupation.
Those conditions have to pass the six tests in national planning guidance on conditions: necessary, relevant to planning, relevant to the development permitted, enforceable, precise, and reasonable in all other respects. A condition demanding a rating the pre-assessment never claimed fails the last of those, and it is worth resolving at the drafting stage rather than at discharge. Ask to see the proposed wording before the decision is issued.
Watch for two drafting errors. A condition that names a superseded version of the scheme leaves you assessing against a manual BRE no longer supports. And a condition requiring the final certificate before occupation can be unworkable where the certificate depends on twelve months of seasonal commissioning data, so agree a sensible trigger in advance.
Where a pre-assessment overpromises
Credits get claimed on commitments nobody has made. A connection to a district heat network that has no agreement behind it. A green roof that the structural engineer has not been told about. Travel credits resting on a bus service the operator is reviewing. Waste credits assuming a site waste routine that the contractor, who has not been appointed, will follow.
The defence is a margin. Target several points above the band threshold, list the credits you are relying on as swing items, and tell the client in writing which ones will cost money to keep. Most of the arguments at discharge stage are about credits that were marked as targeted when they were really only possible.
A pre-assessment also cannot promise the assessment will pass BRE quality assurance. Nothing at planning stage can.
Appointing early enough for it to matter
Bring the assessor in while the massing is still moving. By the time a planning drawing is finalised, the achievable rating is largely fixed, and an assessor appointed at that point is reporting a number rather than shaping it.
Practical sequence for a typical non-domestic application:
- Confirm the local plan policy, the threshold and the required rating.
- Appoint a licensed assessor for the correct scheme.
- Run a credit workshop with the design team before the layout is frozen.
- Issue the pre-assessment with the application, with dependencies stated.
- Agree the wording of any BREEAM condition before the decision is issued.
PlanScope can draft the surrounding narrative for a sustainability submission quickly and structure it to UK planning policy, but the BREEAM credit judgements themselves belong to the licensed assessor, and councils expect a suitably qualified author. For specialist technical reports, qualified professional input may be required.
Enter your postcode on PlanScope to see which reports your site is likely to need before you commission any of them.
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
Can my architect write the BREEAM pre-assessment?
Not unless they also hold a current BRE assessor licence for the relevant scheme. Reading the technical manual is not the same as being licensed, and the licence is scheme specific, so New Construction and Refurbishment and Fit-Out are separate. A council conditioning a rating will eventually want a certificate, which only a licensed assessor can deliver.
Is a pre-assessment the same as a BREEAM certificate?
No. A certificate is issued by BRE after a formal assessment has been quality assured, either at design stage as an interim certificate or after construction as the final one. A pre-assessment is the assessor's estimate of the rating the scheme would reach, based on intentions rather than evidence, and it carries no certification status.
What rating do councils usually ask for?
Excellent is the most common requirement for new non-domestic floorspace, often above a threshold such as 500 m² or 1,000 m², but the figure and the threshold come from the adopted local plan rather than from national policy. Read the relevant development management policy before assuming, because some authorities ask for Very Good and a few ask for Outstanding on major schemes.
What happens if the built scheme misses the conditioned rating?
The post-construction certificate will not support the discharge of the condition, which leaves the permission with an unsatisfied condition and exposes the development to enforcement action. In practice the argument starts earlier, when value engineering removes a credit the tracker relied on. Keep a written record of which credits are swing items and what removing them costs.
When should the assessor be appointed?
Before the massing and layout are fixed, which usually means during concept design. Orientation, form factor, glazing ratio, ecology and site drainage decide a large share of the available credits, and an assessor brought in after the planning drawings are complete can only report the score rather than improve it. Some management credits are also lost if the appointment is late.
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.