BREEAM awards five ratings — Pass (30%), Good (45%), Very Good (55%), Excellent (70%) and Outstanding (85%) — and the difference between neighbouring bands is far bigger than fifteen percentage points suggests. Choosing the target is the single most consequential decision a BREEAM pre-assessment informs: aim too low and you fail policy; aim too high and you buy plant and fabric the scheme never needed.
This guide explains what each band takes in practice, the mandatory minimum standards hiding behind the percentages, and how to set a target with a buffer that survives construction. It pairs with our pre-assessment overview.
The five BREEAM ratings and what they mean in practice
| Rating | Score | What it takes in practice |
|---|---|---|
| Pass | ≥30% | Basic good practice; rarely satisfies a planning policy and rarely worth certifying. |
| Good | ≥45% | Sound standard practice; occasionally accepted for constrained or small schemes. |
| Very Good | ≥55% | The most common local-plan requirement. Achievable with disciplined standard design — but not by accident. |
| Excellent | ≥70% | Requires genuine design intent from concept: strong energy performance, daylight, ecology and, under Version 7, mandatory life-cycle assessment and embodied-carbon reporting. |
| Outstanding | ≥85% | Exemplar territory — innovation credits, top-band energy performance and (V7) a minimum of five embodied-carbon credits. A small minority of certified buildings. |
The percentages are not the whole story: minimum standards
Since 2008 BREEAM has attached mandatory minimum standards to each rating level — specific credits you must achieve regardless of your total. A scheme can score 72% and still miss Excellent because one mandatory credit failed. A pre-assessment therefore reads in two passes: the arithmetic (can we reach 70%?) and the gates (do we hold every mandatory credit at that level?). Version 7 tightened several gates — indoor air quality plans at Very Good and above, zero-ODP refrigerants, and embodied-carbon requirements at the top bands, detailed in our Version 7 guide.
How councils choose the rating they require
Local plans typically require Very Good for major non-residential development, stepping up to Excellent for larger schemes, sensitive locations or public-sector projects — the pattern is mapped in BREEAM in planning. The policy wording matters: “shall achieve Excellent” is a hard gate; “should target Excellent, with a minimum of Very Good” gives negotiating room a pre-assessment can quantify (see planning conditions).
Setting the target: the buffer rule
Scores erode between pre-assessment and final certificate — product substitutions, value engineering, evidence that never materialises. Working practice:
- Project at least 3–5 percentage points above the threshold at pre-assessment stage — a 55.5% projection for a Very Good condition is a plan to fail;
- Bank the cheap, certain credits first — management, water, metering — before paying for expensive marginal ones (the ordering logic is in raising your score);
- Hold innovation credits in reserve as a recovery mechanism rather than spending them in the base case;
- Re-score at every design stage so erosion is caught while it can still be replaced — the rhythm described in when to commission.
What the jump between bands really costs
The move from Very Good to Excellent is not “15% more effort” — it is a different project. Very Good can usually be assembled from disciplined standard practice: efficient services, sensible water fittings, good site management. Excellent forces choices that reach back into the architecture — fabric performance, daylight-driven massing, ecology space on the roof plan — and under Version 7 it adds a life-cycle assessment obligation that starts with the structural frame. Pricing that jump credit by credit, before anyone promises a rating to a committee or a funder, is precisely the job of the pre-assessment.
Frequently asked questions
What rating do most UK certified buildings achieve?
Very Good and Good dominate the certified stock, with Excellent well represented on newer commercial schemes and Outstanding rare by design — the calibration is intentional, so each band signals something real.
Can I upgrade my target mid-project?
Upward moves get harder every stage — going from Very Good to Excellent after Stage 3 usually means buying performance. Downward moves may breach a condition or a funding covenant; check before conceding.
Is Outstanding worth chasing?
Only when the brief genuinely demands an exemplar — the marginal cost above Excellent is steep, and under Version 7 the embodied-carbon gates make it a whole-team commitment from day one.
Key takeaways
- Thresholds: Pass 30%, Good 45%, Very Good 55%, Excellent 70%, Outstanding 85% — plus mandatory minimum standards at every level.
- Very Good is the standard policy ask; Excellent demands intent from concept stage; Outstanding is exemplar territory.
- Project 3–5 points above the threshold and re-score at each stage — buffers are what survive construction.
- Read policy wording carefully: “minimum” and “target” ratings are different obligations.
How Fortress Associates can help
Our BREEAM pre-assessment service maps your scheme against every threshold and gate, returns a projected score with an explicit buffer, and backs it with in-house design stage calculations. The free sustainability statement service carries the commitment into your planning submission alongside BNG, water and urban greening. Contact us or see all services.
Sources & further reading
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