Climate Change and the NPPF 2026: What Developers Need to Know

The August 2026 National Planning Policy Framework gives climate change a chapter of its own. NPPF 2026 climate change policy now sits in Chapter 5 as three numbered policies, CC1 to CC3, separated from the flood risk policies that used to share the same chapter. Only two of those three apply to planning applications. This post sets out what moved, what is genuinely new, and what a case officer will expect your submission to demonstrate.

What changed from NPPF December 2024

Under the December 2024 Framework, climate change, flooding and coastal change were dealt with together in a single combined Chapter 14. The August 2026 version pulls them apart. Climate change becomes Chapter 5, "Meeting the challenge of climate change", carrying policies CC1, CC2 and CC3 at printed pages 28 to 30. Flood risk and coastal change move to Chapter 18, "Managing flood risk and coastal change", with policies F1 to F9 at pages 83 to 87 and a supporting Annex F at pages 124 to 128.

Introduction paragraph 1 is blunt about the status of the old document: "This version replaces the previous National Planning Policy Framework published in December 2024." Paragraph 9 confirms that "The annexes included with this Framework are also national planning policy", so Annex C and Annex F carry the same weight as the chapters themselves.

There are two practical consequences. Every December 2024 paragraph number sitting in your standard planning statement text is now dead. And the drafting style has changed from flowing paragraphs to numbered policies with lettered sub-limbs. That second change matters more than it sounds. It is far easier for an officer, a consultee or a third-party objector to point at policy CC2(1)(f) and say you have not addressed it than it ever was to argue about the meaning of a paragraph.

CC1 is plan-making only, and the NPPF 2026 Framework says so

Chapter 5 opens with a boxed objective describing the aim as supporting "the transition to net zero by 2050" and shaping places "which are more resilient to the effects of climate change". Paragraph 10 makes clear that boxed objectives are context rather than policy, so do not build an argument on that wording alone.

Policy CC1, "Planning for climate change", is a plan-making policy. It asks development plans to take a proactive approach to mitigation "in accordance with the objectives and provisions of the Climate Change Act 2008", and to adaptation, "taking into account the implications of extreme weather and long-term climate trends including overheating, wildfires, drought, flood risk, coastal change, water supply, biodiversity and landscapes". It then asks spatial strategies to propose development patterns that contribute to radical emissions reductions and "Avoid increased vulnerability and improve resilience to the effects of climate change", to address specific climate risks in allocations, to set local water efficiency standards where justified under policy PM13, and to identify green infrastructure and nature-based solutions consistent with Local Nature Recovery Strategies under policy N1.

None of that is a test for your application. Paragraph 8 states that plan-making policies "should not be used when making decisions on development proposals." In our experience that sentence is worth having to hand, because CC1 reads persuasively and we expect it to turn up in objections, and occasionally in officer reports, where CC2 or CC3 would be the correct hook.

One part of CC1 does echo forward. CC1(1)(b) asks that specific climate risks and necessary adaptations be considered "for the anticipated lifetime of the development". The same lifetime framing opens CC3(1).

Policy CC2: the mitigation duties on your application

CC2 is a national decision-making policy. It applies "where relevant to the proposal", which builds in proportionality: a single dwelling is not expected to answer every limb. Read them in order, because each one is a place an application can be picked apart.

CC2(1)(a) sends you to policies TR3 and TR4 so sustainable patterns of movement are prioritised and infrastructure supports the transition to zero-emission vehicles. CC2(1)(b) asks for good access to facilities to limit the need to travel. CC2(1)(c) requires design approaches that conserve energy and other resources under policy DP3(2)(b). CC2(1)(e) covers drawing low carbon energy from decentralised networks such as district heat networks, and co-locating energy and heat generators and users. CC2(1)(g) rules out fossil fuel extraction other than in accordance with policy M5.

Reuse of structures, materials and excavated soil at CC2(1)(d)

CC2(1)(d) asks proposals to "Take advantage of opportunities to reuse existing structures and materials, including by reusing non-contaminated excavated soil and hardcore within the site". This is the limb we expect to catch people out. It puts a materials and earthworks question into national decision-making policy, and on any scheme with a basement, a lowered slab or significant level changes it interacts directly with your ground investigation. If soil is to be reused on site, the contamination evidence needs to show it is not contaminated. If it is going off site, the application should say why reuse was not practicable.

Carbon stores at CC2(1)(f)

CC2(1)(f) asks proposals to "Contribute to the creation or restoration of habitats which can act as carbon stores, such as through woodland planting and peatland restoration, while avoiding harm to habitats which can act as important carbon stores, including peatland and salt marsh". The named habitats matter. If your site sits on peat or adjoins salt marsh, this is a direct policy objection route in its own right, not merely an input to a biodiversity net gain calculation.

Substantial weight for retrofit, heat pumps and solar at CC2(2)

CC2(2) is a limb to use rather than defend against: "Substantial weight should be given to the benefits of improving the energy efficiency of existing buildings and/or drawing energy from district heat networks, renewable and low carbon sources (including through the installation of heat pumps and solar panels where these do not already benefit from permitted development rights) where this would be achieved through proposals for development."

"Substantial weight" is an instruction about the planning balance. On a conversion, an extension or a retrofit-led scheme, spell that benefit out in the planning statement rather than leaving it buried in an energy appendix. Our view is that this limb will do real work in heritage and design cases where an air source heat pump or a solar array has previously been resisted on visual grounds.

Policy CC3: adaptation, with flood policy hard-wired in

CC3(1) asks proposals to "take into account the current and potential impacts of climate change over the lifetime of the scheme" and, to minimise vulnerability, to satisfy five limbs where relevant.

CC3(1)(a) is the one to notice. Proposals should "Be located where the risk of flooding is minimised, or can be managed and the development made safe without increasing risk elsewhere, in accordance with policies F4, F5, F6, F7 and F8". Splitting the chapters did not decouple the two topics; it hard-wired them together. A failure on the sequential test at F5, or on safety at F7, is now also a failure against climate change policy. Our flood risk assessment pages set out what F4 evidence looks like in practice, and flood zones 1, 2 and 3 explained covers the zone definitions the sequential test runs on.

CC3(1)(b) sends coastal sites to policy F9. CC3(1)(c) asks proposals to "Incorporate sustainable drainage systems to manage surface water flow rates and reduce volumes of runoff in accordance with policy F8", so SuDS are now required by both the climate chapter and the flood chapter. Our SuDS page covers what F8 and the national standards ask for.

CC3(1)(d) covers overheating: design approaches that minimise overheating risk under policy DP3(2)(b), with green infrastructure and suitable tree planting under DP3(2)(c) and N3. Overheating mitigation regularly collides with ventilation design, particularly where openable windows are restricted for air quality reasons. Resolve that once, in one place, rather than in two documents that contradict each other.

CC3(2) mirrors CC2(2): "Substantial weight should be given to the benefits of improving the resilience of existing buildings and public spaces to anticipated climate change impacts where this would be achieved through proposals for development." Flood resistance and resilience works to an existing building, raised plant, or improvements to a public space now attract substantial weight in the balance.

The new wildfire policy at CC3(1)(e)

This limb is genuinely new. CC3(1)(e) asks proposals to "Incorporate proportionate measures to mitigate against wildfires, where opportunities to do so exist and wildfires pose a particular risk (for example as a result of the combined effect of topography, prevailing wind direction and being located within or adjacent to heavily vegetated areas). Such measures should be designed to limit fuel loads for fires, and to create defendable spaces, such as by avoiding timber panel fences and incorporating firebreaks into development layouts and planting schemes."

Two things stand out. The trigger is described by site characteristics rather than by a mapped designation. And the policy names specific design responses in the text of the Framework itself: avoid timber panel fences, build firebreaks into layouts and planting schemes, create defendable space, limit fuel loads.

The design implications are immediate. Close-boarded and panel timber fencing on plot boundaries backing onto heath, forestry or unmanaged scrub becomes hard to justify on affected sites. Landscape schemes need to think about species, spacing and the continuity of planting, not just plant count. Firebreaks compete for the same land as the tree planting sought under CC3(1)(d) and N3, and in our view that tension is better resolved in the design and access statement than left to condition stage.

Our expectation, and this is our view rather than policy: screening will be argued from the characteristics the policy itself lists, and most urban schemes will conclude in a short paragraph that the limb is not relevant. Sites on the edge of heathland, moorland, forestry or extensive unmanaged green space should expect to write considerably more, and to be asked for more by consultees.

Lifetime, and the allowances that feed design

Both CC1(1)(b) and CC3(1) turn on the lifetime of the development. Planning Practice Guidance takes that as 100 years for residential development and 75 years for non-residential.

That figure then drives which Environment Agency climate change allowances your modelling uses. The EA publishes peak river flow allowances by management catchment and river basin district, applicable to fluvial catchments broadly above about 5 km², and peak rainfall intensity allowances for surface water and small or urban catchments. Allowances are given for the 2050s and 2070s epochs, with the 2050s used where the development lifetime runs to 2060 and the 2070s where it runs to 2125. Categories include central, higher central and upper end, and a sensitivity test against a higher allowance is often expected. The allowances are updated periodically, so pull the current published figures rather than reusing a number from a previous job.

What to do now

• Renumber your templates. Replace December 2024 paragraph references with CC1, CC2 and CC3, and with F1 to F9 for flood risk.

• Add a climate section to the planning statement that walks CC2(1)(a) to (g) and CC3(1)(a) to (e) in order, stating plainly where a limb is not relevant and why.

• Put the CC2(2) and CC3(2) benefits into the planning balance explicitly, with evidence, rather than leaving them implied in a technical appendix.

• Ask the contamination and earthworks question early so CC2(1)(d) can be answered from the ground investigation rather than guessed at.

• Check for peat and salt marsh at desk study stage for CC2(1)(f).

• Screen for wildfire relevance at feasibility on any site adjoining heath, moor, forestry or extensive scrub, and settle boundary treatments and firebreaks before the layout is fixed.

• Confirm the lifetime figure and pull the current EA allowances before flood and drainage modelling starts.

• Coordinate the overheating strategy under CC3(1)(d) with the ventilation and air quality design.

Frequently asked questions

Does policy CC1 apply to my planning application?

No. CC1 is a plan-making policy, and paragraph 8 states that plan-making policies "should not be used when making decisions on development proposals." The decision-making policies in Chapter 5 are CC2 and CC3. CC1 is still useful reading, because it tells you what the plan you are applying under is meant to contain.

Do I need a separate climate change statement?

The Framework does not require a standalone document. In our experience the more efficient route on most schemes is a climate section within the planning statement that addresses each CC2 and CC3 limb in order, cross-referring to the flood risk assessment, drainage strategy, energy statement and landscape scheme rather than duplicating them.

Has flood risk been downgraded by moving into Chapter 18?

No, if anything the opposite. CC3(1)(a) cross-refers directly to policies F4, F5, F6, F7 and F8, so a flood risk failure is also a climate policy failure. Chapter 18 sits alongside Annex F, and paragraph 9 confirms that annexes are national planning policy.

What does "substantial weight" mean in CC2(2) and CC3(2)?

It is a direction on the planning balance, not a consent. The benefits still have to be evidenced and weighed against any harm, but a decision-maker should give real weight to energy efficiency improvements, heat pumps, solar and resilience works delivered through the development.

If you are working out how CC2 and CC3 apply to a live scheme, particularly where flood risk, surface water drainage and overheating all land in the same application, we can tell you what evidence the LPA is likely to expect and what it will cost. Get a quote and we will come back with a fixed fee and a programme.