

In December 2024, the Government released a significantly revised National Planning Policy Framework (NPPF) – a document that set out to unlock housing delivery, enable economic growth, and rebalance the planning system. At the time, Iestyn John, Partner at Bell Cornwell Planning Consultants, shared his initial insights on the likely implications of the changes.
Now, several months on, we revisit the discussion with Iestyn to reflect on how the new policy is playing out on the ground. Has the updated NPPF delivered on its promise? What unforeseen challenges have emerged? And how can planners, developers, and local authorities navigate this evolving landscape?
In this follow-up conversation, Iestyn offers a candid and expert assessment of the early impacts of the revised NPPF — from housing delivery and plan-making to infrastructure, affordability, and the critical role of strategic advice in uncertain times.
Since the NPPF changes were announced in December 2024, how would you evaluate its effectiveness in accelerating housing delivery across local authorities, and does it support the Labour Government’s ambition of delivering 1.5 million new homes?
The new NPPF, with its more proactive position on housing numbers and on development within the ‘grey belt’ is undoubtedly having an impact. We are seeing more local authorities accepting they can’t meet housing targets and are taking a more positive view of well-designed, well-located schemes.
For similar reasons, the prospect of not being able to defend speculative schemes at appeal is having the effect of reinvigorating the development plan process in many areas, with local authorities accepting that they need to get their plan-making back on track. Needless to say, such changes are all creating opportunities for the development industry and for advisers such as us.
Overall, I would suggest that the NPPF is definitely pushing things in the right direction, but it will take a pragmatic approach from local authorities and the Planning Inspectorate to turn that ambition into real delivery on the ground.
What do you see as the most significant drawbacks or unintended consequences of the new NPPF?
Whilst the general effect of the NPPF has been positive, it has generated some unintended consequences. For example, some local authorities, faced with the need to plan for much increased housing provision, have felt it necessary to abandon work on their draft development plans completely in order to start afresh. Such tactics will create further delay within the system, something which runs somewhat counter to the Government’s plans. Whilst unwelcome, such circumstances may however have the benefit of creating opportunities to promote development in previously unidentified locations.
With social housing being emphasised more clearly in the NPPF, to what extent do you think this is addressing the broader affordability crisis?
It’s difficult to say at the moment. One of the major constraints on the delivery of affordable housing is scheme viability. Given high land values, long lead-in times and construction costs, my instinct is that downward pressures on the amount of social housing capable of being delivered within individual developments will remain.
However, with more housing coming forward as a result of the wider NPPF approach, the aggregate amount of social housing being delivered ought to increase and that can only be a good thing.
What impact do you anticipate the NPPF’s stronger support for modern economic infrastructure (e.g., labs, gigafactories) will have on regional growth and job creation?
There’s a pretty clear emphasis within the document on the need to plan for more modern infrastructure and this is very welcome. Over recent years, the focus of national policy has been on housing. So, there is a need to balance with this more economic growth, especially given wider macro-economic issues.
Looking ahead, local authorities will have to give greater weight to supporting this kind of growth, both in their plan-making and day to day decisions. Being involved in a number of such schemes already, I know that our clients are aware of the changed emphasis. They view it positively and expect local authority decision makers to pay regard to it in weighing the planning balance of their proposals.
In your view, why is consulting a planning expert more important than ever in this revised policy landscape?
There is considerable reform underway. This is being progressed not only through the new NPPF but also through other changes. For example, in the Planning and Infrastructure Bill and the plans to create more combined authorities. In addition, the impact of recent changes like mandatory biodiversity net gain is still being worked through by councils and developers alike.
With so much changing, having someone who really understands the system is hugely helpful – not just to make sense of it all, but to spot the right opportunities and work out the best way forward in terms of time, cost, and strategy. I would always advocate that clients seek early advice so that they have the best possible understanding of how they might progress their plans in the most deliverable and cost-effective manner.
If you could revise the NPPF further, what changes or clarifications would you recommend to improve its implementation and outcomes?
In many ways, the most recent reiteration of the NPPF should pave the way for the delivery of strong and balanced growth in the future. To my mind, looking at further possible changes should involve a clear focus on many of the bureaucratic hurdles which inhibit the timely granting of planning permission. Changes such as the streamlining of the statutory consultation process, adopting a less mechanistic approach to biodiversity net gain provisions and providing local authorities with improved resources and skills. This will all help improve delivery.
If there’s one message you would like policymakers, planners, and developers to take from the December NPPF update, what would it be?
Be pragmatic, see the bigger picture and don’t let the perfect be the enemy of the good. Achieving success always requires compromise but this needn’t stop the delivery of high-quality development.
The updated NPPF has brought new urgency, fresh opportunities, and a renewed focus on delivery, but it also demands a strategic and informed approach.
At Bell Cornwell, we are helping landowners, developers, entrepreneurs and local authorities respond to these changes, identify the right opportunities, and navigate the system with confidence.
If you are reviewing your planning strategy, promoting a site, or facing uncertainty around the new policy framework — now is the time to get expert advice.
Get in touch with our team to discuss how we can help you move forward.
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Iestyn John is a Chartered Town Planner with nearly 30 years’ experience delivering planning permissions for complex schemes across the South West. He specialises in sensitive sites – including National Landscapes, National Parks, and coastal areas – and has a strong track record in both rural and urban regeneration projects. As Partner, he leads our Devon office and supports clients across all major development sectors.