Muddles Cottage New Road Penshurst Kent TN11 8EJ Data via plota.co.uk

26/01772/MMA - Minor Material Amendment Approved

Proposal

Amendment to to Increase thickness of external wall insulation. Increase thickness of roof and dormer. Increase roof ridge heigh and pitch. Change to dormer position to the southern side. Change size of dormers. Change position of porch. Alteration to fenestration and rooflights. Data via plota.co.uk

View original council record ↗Last checked

Application progress

Received
6 Jul 2026
Approved
28 Aug 2026

Approved on 28 Aug 2026 · Delegated Decision · Last checked 28 Aug 2026

Associated applications 2

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    • AmendmentAmendment to Increase thickness of external wall insulation. Increase thickness of roof…This application26/01772/MMA

Site constraints 4

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.
High Weald 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.
Agricultural land, grade 3b
Not 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.
Not affected
Outside flood zones 2 and 3 · No listed building at the site · 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
Minor Material Amendment
Postcode
TN11 8EJ
Received
6 Jul 2026
Validated
6 Jul 2026
Ward
Penshurst, Fordcombe & Chiddingstone
Parish
Penshurst
Target decision
31 Aug 2026
Decision
Granted
Decision date
28 Aug 2026
Decision level
Delegated Decision
Applicant
Show
Agent
Fox-Groves Architecture Ltd

How this decision compares

Decided in 53 days from validation, about the council's usual 56 days. Approved, as 85% of extensions here are.

75%decided within 8 weeks
85%approved
509decided 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-15031045
Env. assessment
No
Sevenoaks
Planning Authority Score
5.6/10
Average
#115 of 296 councils
Relevant to this application:
Householder 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