Ash Oast School House Lane Horsmonden Tonbridge Kent TN12 8BJ Data via plota.co.uk

26/01637/FULL - Full Application Awaiting decision

Proposal

Single storey annexe extension and conversion of garage into living accommodation, with associated external alterations Data via plota.co.uk

View original council record ↗Last checked

Application progress

Received
21 Jul 2026
Validated
23 Jul 2026
Consultation
5 Aug 2026
Decision
Expected by 17 Sept 2026

This application is under consideration - no decision has been issued yet. Plota predicts a decision around 14 Sept 2026, from Tunbridge Wells's recent extensions. The consultation period closed on 26 Aug 2026.

Site constraints 3

Agricultural land, grade 3a
Best and most versatile land (grades 1, 2 and 3a). Predicted from the national soil map. The older provisional map agrees.
Where development of farmland is needed, policy prefers poorer land over the best and most versatile (grades 1, 2 and 3a). Three sources: Natural England's post-1988 field surveys, which are definitive where they exist; the Defra predictive map for England (2025) and the Welsh Government predictive map, modelled from the soil map with 3a and 3b split; and the 1970s provisional map, which planners and other services still show, coarser and with grade 3 undivided. Where the provisional and predicted grades disagree, treat the predicted grade as the current estimate and expect an application to carry its own survey.
Habitat network: Network Enhancement Zone 1
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
1 listed building within 150 m
Nearest: Ash Farmhouse, Grade II, 34 m away
The site itself is not listed. 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 ↗
Not affected
Outside flood zones 2 and 3 · Not green belt · 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

Application type
Full Application
Postcode
TN12 8BJ
Received
21 Jul 2026
Validated
23 Jul 2026
Ward
Rural Tunbridge Wells
Parish
Horsmonden Parish Council
Case officer
Show
Target decision
17 Sept 2026
Decision level
Delegated Decision
Applicant
Show
Agent
Willow Town and Country Planning Ltd

Decision outlook

Day 53 of the 56-day target. Tunbridge Wells usually decides extensions by day 53.

Day 533 days to the 56-day target
80%decided within 8 weeks
93%approved
418decided in the last year

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

Consultation & key dates

Alt. reference
PP-15073460
Comments by
26 Aug 2026
Site or press notice
5 Aug 2026
Statutory expiry
17 Sept 2026
Env. assessment
No
Tunbridge Wells
Planning Authority Score
8.7/10
Excellent
#13 of 296 councils
Relevant to this application:
Householder decisions

Tunbridge Wells is one of the fastest councils in England for householder decisions, ranking #26 out of 296. Only 25% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Householder applications are slightly more likely to be approved here (96%) than the national average (90%).

Among the fastest councils in England
for householder decisions
These figures are council-wide context, not a prediction for this application. View full council performance
Tunbridge Wells decision statistics
Based on MHCLG data, the year to March 2026
93%
Overall approval rate
Above avg (87%) #69 of 296
96%
Householder approved
Above avg (90%) #63 of 296
84%
Decided in 8 weeks
Above avg (63%) #26 of 296
25%
Extended time limit
Below avg (41%) #32 of 296
85%
Minor dwellings approved
150 decided (1-9 homes)
82%
Major dwellings approved
11 decided (10+ homes)
96%
Change of use approved
47 decided
1,178
Total decisions
83 refused in the year to March 2026