Policy that arrives with numbers attached is unusual, and worth reading closely, because numbers are easier to argue about than judgement. The revised framework of 17 August 2026 supports housing near well-connected railway stations and puts figures against nearly every term in that sentence.
The figures
- Development near a well-connected station is one of the routes to acceptability outside a settlement, under S5(1)(h).
- Reasonable walking distance is defined as around 800 metres, or around ten minutes' walk.
- Density under L3 should be at least 35 dwellings a hectare across the net developable area.
- That rises to at least 45 dwellings a hectare where the service frequency is at least twice the minimum.
- GB7 adds a separate route in the Green Belt: residential or mixed use within walking distance of a station can be not inappropriate without evidenced unmet need, although major development still has to meet the Golden Rules.
Why 800 metres is the number that will get argued
Eight hundred metres has been the working assumption in transport planning for years without sitting in national planning policy. Writing it down converts a professional convention into something an inspector can be pointed at.
It also turns a gradient into an edge. A site 750 metres from the platform and one 900 metres away used to sit on the same spectrum and be argued the same way. They are now on opposite sides of a stated figure, and the second has to find another route.
Measure the walk, not the crow
Measure along the route somebody would actually walk. Where a railway line, a river or a dual carriageway sits between the site and the station, the walked distance and the straight line can differ by hundreds of metres, and it is the walk the policy describes.
The definition to check before you rely on any of it
All of the above hangs on what counts as a well-connected station, and that definition is where the scope of the policy actually sits. Published summaries have described service frequency and economic geography tests. We have not seen those confirmed against the framework text, so treat the qualifying criteria as something to verify for your specific station rather than assume.
What it signals beyond the sites it captures
The interesting thing is not which sites qualify. It is that national policy has started expressing itself in measurable thresholds rather than in adjectives.
A framework built on words like sustainable and appropriate leaves almost everything to the decision maker. One that says 35 dwellings a hectare does not. Expect more of it, and expect arguments to shift from what a policy means to whether a site meets it.
Sources
- Ministry of Housing, Communities and Local Government, National Planning Policy Framework, published 17 August 2026.
- Burges Salmon, The August 2026 NPPF: key departures from the consultation draft, on S5(1)(h) and the 800 metre definition.
- Planning Geek, NPPF 2024 vs 2026, on the L3 density thresholds and the GB7 station route.