Deerleap Bank, Halstead Lane, Knockholt/Halstead

appeal 6007121·Sevenoaks·21 September 2026dismissed
Decision
dismissed, 21 September 2026
Decided by
Planning Inspector: Claire Coles
Authority
Sevenoaks (South East)
Appeal reference
6007121
Application reference
25/03516/PIP
Procedure
written representations
Development
Permission in principle for 4-6 net dwellings replacing an existing bungalow, garage and outbuilding
Homes
6
Site context
green belt, PDL
Green Belt
Yes (grey belt accepted)
Housing land supply
2.96 years
Framework applied
August 2026 NPPF
Determinative policies
L3, S5(5), GB7(1)(g), GB7(1)(e)
Development plan policies
Sevenoaks Core Strategy 2011 LO7, LO8, SP7
Main issues
grey belt; openness; density

Summary

Permission in principle for 4-6 dwellings on a bungalow plot in the Green Belt between Halstead and Knockholt. The Green Belt issues were won: grey belt with all GB7(1)(g) limbs agreed, and also compliant with GB7(1)(e) as PDL without substantial harm to openness. The appeal was dismissed anyway because the "amount" of development (at most 13 dph) failed to make efficient use of land under L3 and local policy SP7. The S5(5) balance went against the scheme.

Issues and findings

Planning balance

S5(5): approve unless benefits are substantially outweighed. Housing had moderate weight (DL ¶22). "these considerations are not sufficient to outweigh the adverse effects of low-density development on the site. The proposal would therefore not constitute sustainable development … the presumption … would not apply" (DL ¶28). The development plan conflict (SP7) was decisive (DL ¶29). Note that the DL ¶28 wording reads more like an ordinary balance than an express "substantially outweighed" finding.

What made the difference

Under-use of land. With the Green Belt tests passed, the new L3 duty to make "best use of a site's development potential" outside settlements became the ground for refusal. A PIP for a higher number, around 30 dph in line with Warren Court Farm, would probably have succeeded. The irony is that the smaller number was presumably chosen to limit Green Belt impact.

Transferable points

Policy findings

Policy codes are those of the National Planning Policy Framework (August 2026) unless a development plan is named.

PolicyFindingWeightNote
AnnexB:grey-beltpasscommon ground (DL 7)
GB7(1)(g)passcommon ground that limbs (i)-(iii) met; (iv) not relevant; not inappropriate (DL 7-8)
GB7(1)(e)passagreed PDL; greater bulk, spread and activity than the bungalow, but visually contained between housing and a small part of a wider parcel → not substantial harm to openness (DL 9-13)
L3fail13 dph at most vs SP7 30 dph; no demonstration that the site's maximum potential was used; "Development proposals that do not make efficient use of land … should be refused" (DL 14-21, 27)
HO7benefitmoderatesmall contribution to 2.96-yr shortfall (DL 22)
S5(5)failbenefits did not outweigh low-density harm; presumption did not apply (DL 26-28)

Key facts

Sources

This note is one of the decisions behind the NPPF 2026 Navigator, which shows how each Framework test has been applied across all the decisions in the database. Also available as Markdown.