BREEAM turns up in planning conditions across the UK, usually attached to commercial and larger residential schemes. If your council has asked for a BREEAM rating, or your sustainability statement needs to address it, this guide explains when BREEAM applies, what the ratings actually mean, and how the 2026 changes to the scheme affect what you must deliver.
What is BREEAM?
BREEAM (the Building Research Establishment Environmental Assessment Method) is the UK's long-established sustainability certification for buildings. It scores a development across categories including energy, water, materials, waste, pollution, health and wellbeing, land use and ecology, and transport. The combined score produces a rating on a fixed scale:
- Pass — the entry threshold.
- Good
- Very Good — the most common planning-condition minimum.
- Excellent — typical for premium and most public-sector projects.
- Outstanding — the top tier, reserved for exemplar schemes.
Unlike an energy statement, which focuses on operational carbon and the energy hierarchy, BREEAM takes a whole-building view of sustainability. The two are complementary: a scheme may need both.
When do councils require BREEAM?
There is no single national rule; requirements sit in local plans and are applied through planning conditions. In broad terms:
- Most local authorities require BREEAM Very Good or above as a planning condition for new commercial development above a size threshold that varies by council.
- Many authorities push major schemes towards Excellent, and public-sector projects frequently target Excellent under government minimum standards.
- A significant majority of UK local authorities reference BREEAM certification somewhere in their policy framework.
Because the trigger and the required rating vary between councils, the first step is always to check the adopted local plan and validation checklist for your specific authority. A sustainability statement then sets out how the scheme will achieve the required rating, usually supported by a BREEAM pre-assessment.
Very Good vs Excellent — what changes?
Moving from Very Good to Excellent is not a small step. It generally demands stronger performance across several categories at once — better energy and water efficiency, responsible material sourcing, ecological enhancement and low-pollution design — rather than excelling in one area. That has cost and design implications, which is why it matters to establish the target rating early, before layouts and specifications are fixed. Ecology in particular now overlaps heavily with biodiversity net gain, so a BREEAM strategy and a BNG strategy should be developed together.
The 2026 change: BREEAM V7 and whole-life carbon
The scheme itself has moved on. BREEAM New Construction version 7 became mandatory for new UK registrations from 30 September 2025, with the previous versions closing to new registrations in January 2026. The most significant change is that whole-life carbon now sits at the centre of the assessment — accounting for the emissions embodied in construction as well as operational energy. BRE has indicated that projects typically score around 3 to 5% lower under V7 than under the previous version, because the bar has risen.
The practical message: if your scheme is registering now, it is being assessed under V7, and hitting the same rating as a comparable older project takes more. Embodied carbon, material choices and circularity deserve attention from the concept stage, not the fit-out.
How BREEAM fits the wider sustainability statement
BREEAM is one strand of a planning sustainability statement, which typically also addresses water efficiency to the 110 litres per person per day standard, biodiversity net gain under the Environment Act 2021, and — for London schemes — the Urban Greening Factor under London Plan Policy G5. On a large or sensitive site these threads are assessed together, and a coherent statement shows how they reinforce one another rather than treating each as a separate box to tick.
Common questions about BREEAM in planning
Is BREEAM the same as an EPC?
No. An Energy Performance Certificate rates operational energy efficiency alone. BREEAM assesses sustainability across many categories, of which energy is only one. A scheme can hold a good EPC and still fall short of a BREEAM rating.
Do small residential extensions need BREEAM?
Generally not. BREEAM conditions overwhelmingly attach to commercial and larger residential schemes above a council-set threshold. Householder and minor applications are far more likely to need a proportionate sustainability statement than a formal BREEAM certificate.
When should the BREEAM assessor be appointed?
As early as possible. Because several categories score at the design stage, decisions taken at concept — orientation, structure, material sourcing and ecology — lock in much of the achievable score. Bringing the assessor in late almost always costs credits.
Does BREEAM replace biodiversity net gain?
No. BNG is a separate statutory requirement under the Environment Act 2021, though BREEAM's land use and ecology credits reward the same enhancements. Treat them as linked but distinct obligations.
How Fortress Associates can help
Fortress Associates prepares automated sustainability statements for UK planning applications, covering every local authority. The report is free and ready in minutes, and it addresses energy, water efficiency (the 110 l/p/d Part G calculator), 10% biodiversity net gain, urban greening and BREEAM where the local authority requires it. For London sites it covers the Urban Greening Factor under London Plan Policy G5. Explore our services or contact us to discuss your scheme.
Sources and further reading
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