West Heath School Ashgrove Road Sevenoaks Kent TN13 1SR Data via plota.co.uk

Proposal

Proposed two storey extension to North West elevation of main building, incorporating main hall, 6 new classrooms, servery, WC accommodation and relocation of school main entrance/reception. Installation of PV equipment and mechanical plant at roof level and relocation of boiler flue to existing building. New hard and soft landscaping. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
21 May 2026
✓
Approved
20 Jul 2026

Approved on 20 Jul 2026 · Delegated Decision · Last checked 20 Jul 2026

Documents 30

All documents on the council site ↗

Site constraints 5

Grade II listed: West Heath School
List entry 1031527 · 2 m away
Listed building consent is needed for work that affects the special interest of a listed building, inside or out, on top of planning permission. Setting can be a consideration for buildings nearby; there is no fixed radius.
Historic England ↗
Green belt: London
Inappropriate development needs very special circumstances.
Green belt policy allows a short list of exceptions, such as limited extensions and replacement buildings. Anything else needs very special circumstances that clearly outweigh the harm.
Kent Downs National Landscape
Great weight to conserving the landscape; major development restricted.
Previously an area of outstanding natural beauty, which is still the designation in law. Since 2023 authorities must seek to further its purpose, not merely have regard to it.
Habitat network: Network Enhancement Zone 2
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
Also on the record
Inside the Sevenoaks built-up area.
Not affected
Outside flood zones 2 and 3 · No scheduled monument at the site

Checked on 11 September 2026. Historic England, the Environment Agency, Natural England and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.

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Important details

Council
Sevenoaks
Application type
Listed Building Consent (Alt/Ext)
Postcode
TN13 1SR
Received
21 May 2026
Validated
21 May 2026
Ward
Sevenoaks Kippington
Parish
Sevenoaks
Target decision
16 Jul 2026
Decision
Granted
Decision date
20 Jul 2026
Decision level
Delegated Decision
Applicant
Show
Agent
DMP
Leaseholder
Show

How this decision compares

Decided in 60 days from validation, 4 days slower than Sevenoaks's median of 56 for extensions. Approved, as 85% of extensions here are.

74%decided within 8 weeks
85%approved
615decided in the last year

Plota live figures for extensions decided by Sevenoaks in the last twelve months, from validation. Sevenoaks decision record →

Consultation & key dates

Planning Portal ref
PP-14872325
Env. assessment
No
Sevenoaks
Planning Authority Score
5.6/10
Average
#115 of 296 councils
Relevant to this application:
Other decisions

Sevenoaks ranks #109 out of 296 councils for householder decision speed. Householder applications are slightly more likely to be approved here (90%) than the national average (90%).

These figures are council-wide context, not a prediction for this application. View full council performance
Sevenoaks decision statistics
Based on MHCLG data, the year to March 2026
87%
Overall approval rate
Above avg (87%) #177 of 296
90%
Householder approved
Above avg (90%) #194 of 296
72%
Decided in 8 weeks
Above avg (63%) #109 of 296
34%
Extended time limit
Below avg (41%) #93 of 296
85%
Minor dwellings approved
213 decided (1-9 homes)
100%
Major dwellings approved
7 decided (10+ homes)
71%
Change of use approved
14 decided
1,130
Total decisions
143 refused in the year to March 2026

Leaseholders: Information produced by HM Land Registry. © Crown copyright 2026. Source: HM Land Registry, UK and overseas companies that own property in England and Wales, September 2026 release.