England’s planning rules have been rewritten — what the changes mean in practice

On 17 August 2026, the government published a new version of the National Planning Policy Framework. With a little time to digest it, it’s clear this was no tweak: it is the first full rewrite since the framework was introduced in 2012, and it took effect the day it was published.

The big idea: fewer judgement calls

The old system gave councils a lot of room to weigh things up case by case. The new one tries to replace much of that judgement with clearer rules.

Planning policy is now split in two: one set of rules for how councils write their local plans, and another set that applies directly when decisions are made on individual applications. The second set applies everywhere in England. Where a council’s own local policy clashes with it, the local policy now counts for very little and councils are told not to write their own versions of national rules into their plans at all.

In practice, that means more consistency from one council to the next, and less scope for a local authority to take its own line.

Inside the town, outside the town

Whether your land sits inside or outside the settlement boundary has always been decisive, and that hasn’t changed. What has changed is the weight behind the answer. Under the new policy (S4), development inside a settlement now carries a stronger presumption in favour: it should be approved unless the adverse effects substantially outweigh the benefits. The framework also now includes a national definition of a settlement, covering cities, towns, villages and built-up areas (including land allocated or permitted that will join them), although hamlets and scattered houses are generally excluded unless the local plan says otherwise. It is a firmer starting point for sites inside the boundary, but an evolution rather than a major shift.

The more interesting change is outside the boundary. Policy S5 replaces the old patchwork of local policies and housing land supply arguments with a defined list of circumstances in which development is acceptable in principle. The main routes are:

• Limited infilling within existing groups of houses, judged against the local pattern of development rather than a fixed number of plots (S5(1)(e)).
• Redevelopment of previously developed (brownfield) land for homes or commercial use (S5(1)(d))
• Reuse, extension, alteration or replacement of lawful existing buildings (S5(1)(c))
• Sites within reasonable walking distance of a well-connected station (S5(1)(h)) — more on this below
• Where there is an evidenced unmet need for housing (S5(1)(j)). This is triggered automatically if the council can’t demonstrate a five-year housing land supply, or its Housing Delivery Test result is below 75% — a common situation, but one that is site- and evidence-specific. The site must still be well related to an existing settlement and capable of being served by local infrastructure.

None of this is automatic. Design, landscape impact, flood risk, heritage, ecology and highway safety are all still assessed, and S5 does not apply to Green Belt or Local Green Space, which have their own policies. Sites straddling the boundary are split, with S4 applied to the part inside and S5 to the part outside before an overall decision is made, so knowing exactly where the line falls matters. The station route in particular deserves a closer look.

Homes near railway stations

Land within a short walk of a well-connected railway station now gets what amounts to a default “yes” for housing — including some Green Belt land.

“A short walk” has a definition: roughly 800 metres, or about ten minutes on foot where hills, main roads or missing footpaths make the distance harder than it looks. Schemes in these areas also have to hit minimum densities, so expect flats and terraces rather than detached houses with large gardens.

The Green Belt

Green Belt protection hasn’t been abolished, but it has been loosened further. Where building is allowed on released Green Belt land, developers must provide a higher share of affordable housing than the local norm, capped at half the homes on the site.

Smaller changes you might notice

Schemes of 10 to 49 homes, on sites up to roughly 2.5 hectares, are now treated as a distinct tier with lighter-touch policy and fee requirements, and a standard, simplified legal agreement is promised for the contributions they make (things like affordable housing or school places). The aim is to make it easier for small and medium-sized builders to compete with the large housebuilders, who currently dominate. If you own a field or paddock of a few acres, this is the category your site would most likely fall into, and it may now draw interest from a wider range of buyers, not just the volume housebuilders.

What it means for you

Councils and statutory consultees (like the Environment Agency or Highways England) must now respond within set timeframes, rather than letting applications drift — meaning a shorter, more predictable wait for a decision, though it’s early days for how well this works in practice.

A stronger policy position isn’t the same as planning permission

The change in NPPF policy means it is now worth reviewing your options and discuss the opportunities that could become reality.

The team at Howie Kent & Co would be more than happy to discuss this with you.