Highlands Cottage 47 Copthall Lane Chalfont St Peter Buckinghamshire SL9 0DQ Data via plota.co.uk
Proposal
Creation of first floor with associated roof and fenestration alterations. Single storey front/side/rear extensions. Data via plota.co.uk
Application progress
This application is under consideration - no decision has been issued yet. Plota predicted a decision soon after comments close on 30 Sept 2026; it is now day 66. Comments are open until 30 Sept 2026.
Comment on this application ↗Documents 3
Statements & assessments 2
Application forms 1
Site constraints 3
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.
Every application in Buckinghamshire - and every UK council - as a live feed, an API, or a bulk CSV export.
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Important details
- Council
- Buckinghamshire
- Application type
- Full Application
- Postcode
- SL9 0DQ
- Received
- 10 Jul 2026
- Validated
- 10 Jul 2026
- Ward
- Chalfont St Peter
- Parish
- Chalfont St Peter
- Case officer
- Show
- Target decision
- 4 Sept 2026
- Decision level
- Delegated Decision
- Applicant
- Show
- Agent
- Mercer Planning Ltd
Decision outlook
Day 66, past the statutory target. 89% of extensions in Buckinghamshire are decided within thirteen weeks, which runs to 9 Oct 2026; extensions of time are common, and the council need not decide on the day. Last seen undecided on 12 Sept 2026.
Plota live figures for extensions decided by Buckinghamshire in the last twelve months, from validation. Buckinghamshire decision record →
Public comments
13 neighbours consulted · Last counted 12 Sept 2026
Consultation & key dates
- Neighbours
- 15 Jul 2026
- Consultation
- 9 Sept 2026
- Comments by
- 30 Sept 2026
- Statutory expiry
- 4 Sept 2026
- Env. assessment
- No
Buckinghamshire is one of the slowest councils in England for householder decisions, ranking #280 out of 296. 55% of applications have the time limit extended, above the 41% national average. Householder applications are slightly less likely to be approved here (86%) than the national average (90%).
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Highlands Cottage 47 Copthall Lane Chalfont St Peter Buckinghamshire SL9 0DQ
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