NSBRC - New National Planning Policy Framework (NPPF) | What it means for self builders and residential development
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New National Planning Policy Framework (NPPF) | What it means for self builders and residential development

The new framework published on 17 August 2026, strengthens the Government's focus on delivering more homes and making better use of suitable land. For self builders and landowners, the changes could create new opportunities for small-scale residential development, infill housing and self-build plots.

Planning Permission Drop-in Clinic

Join us on Saturday 26th December, from 10:00–14:00, for free expert guidance on navigating the planning process.

Whether you’re planning a self-build, extension, renovation or conversion, experienced planning professionals can help you understand your options, identify potential challenges and avoid costly mistakes or delays. The event includes expert talks, practical one-to-one consultations and insights from exhibiting partners.

Advice will cover Planning Permission, Permitted Development Rights, site constraints, planning applications, development potential, planning conditions, appeals and the relationship between planning and Building Regulations.

Find out more and book your free space.

What does the new NPPF mean for self-build?

The new NPPF continues to recognise the importance of self build and custom build housing, including the contribution that small sites can make to housing delivery. This is particularly relevant if you are looking for, or already own:

  • A self-build plot
  • A large garden
  • An infill site
  • Brownfield land
  • A redundant building
  • Land within or adjoining a settlement
  • A small residential development opportunity

More support for small residential sites

The new NPPF places greater emphasis on making efficient use of land and delivering housing through small and medium-sized sites. For homeowners and landowners, this means it may be worth reassessing land that was previously considered too small or difficult to develop.

A garden, infill plot or underused parcel of land could potentially provide:

  • A new dwelling
  • A replacement home
  • A self-build plot
  • Several new homes
  • A small residential scheme

However, planning permission is never guaranteed. Site-specific matters such as access, design, character, ecology, flooding and neighbouring amenity will remain important.

What about Green Belt and Grey Belt land?

The new NPPF continues the Government's approach to Grey Belt and appropriate Green Belt development.

This does not mean that all Green Belt land can be developed. However, landowners with sites close to settlements or transport links should consider whether the new national policy changes the planning prospects of their land.


Mark Doodes Planning Consultants have experience in assessing and promoting residential development opportunities, including Green Belt and self-build projects.

The key takeaway

For self-builders, homeowners and small developers, the NPPF 2026 provides stronger support for:

  • Self-build and custom-build homes
  • Small residential sites
  • Infill development
  • Brownfield redevelopment
  • Efficient use of land
  • Residential development in sustainable locations
  • Housing around well-connected railway stations
  • Appropriate Grey Belt and Green Belt development

​Could your land now have residential development potential?

The new NPPF is a good reason to reassess your site. If you own a garden, paddock, redundant building, infill plot or other land that could accommodate a new home, our planning consultants can assess its potential under the new planning framework.

If your site has previously been refused, or considered unsuitable, for residential development, now could be the right time to have it reassessed against the new NPPF 2026. Contact Mark Doodes Planning Consultants to see how they can help you exploit the potential of the NPPF 2026.

This article is brought to you in partnership with Mark Doodes Planning Consultants, and provides a general overview of the new NPPF, which should not be treated as planning or legal advice. Individual sites will still need to be assessed against the full Framework, the development plan and other relevant planning considerations.

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