Oldfields Church Road Penn Buckinghamshire HP10 8NU Data via plota.co.uk

PL/26/07718/SA - Certificate of Lawful Use - Proposed Registered
Extensions & alterations

Proposal

Certificate of Lawfulness for proposed pool building. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
around 24 Sept 2026
Decision
Expected by 19 Nov 2026

Under consideration

No decision has been issued yet. Plota predicts a decision around 19 Nov 2026, from Buckinghamshire's recent extensions.

Documents

View the documents on the council's website ↗

Site constraints 8

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. Some green belt land can count as grey belt, where it does not strongly serve the green belt's purposes. The council decides this in its green belt assessment or on each application, so we do not mark it here.
Read the government guidance ↗
Chilterns 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.
Article 4 direction
Whole District excluding the Town of Chesham - Poultry production.. Named permitted development rights are withdrawn here.
An Article 4 direction withdraws particular permitted development rights, so work that would normally need no application needs one here. Not every council has published its directions.
Conservation area 12 m away: Penn and Tylers Green
The edge of the area; work outside it can still affect its setting.
The council must give weight to preserving or enhancing the area's character and appearance. Not every council has published its boundaries as open data.
Council document ↗
Also on the record
Radon affected area, class 2; 3 listed buildings within 150 m; Inside the Hazlemere built-up area; Natural England's Provisional ALC map (1:250,000, 1970s) had this area as grade 3, but it predates the buildings here and the current map does not class it as farmland.
Not affected
Outside flood zones 2 and 3 · No scheduled monument at the site

Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, the British Geological Survey and UK Health Security Agency (radon, contains BGS materials © UKRI) 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.

Building

Floor area198 m² (2,131 sq ft)
Energy ratingE (52 out of 100), could reach D
PropertyDetached house, 8 habitable rooms
Built1950 to 1966
HeatingBoiler and radiators, mains gas
WallsCavity wall, as built, no insulation (assumed)

From the energy performance certificate lodged in June 2014, the latest held for this property. The building may have changed since. View the certificate

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Important details

Council
Buckinghamshire
Application type
Certificate of Lawful Use - Proposed
Postcode
HP10 8NU
Received
around 24 Sept 2026
Validated
24 Sept 2026
Ward
Penn, Tylers Green and Loudwater
Parish
Penn
Target decision
19 Nov 2026
Decision level
Delegated Decision
Applicant
Show
Agent
DP Architects

Decision outlook

Day 15 of the 56-day target. Buckinghamshire usually decides extensions by day 56.

Day 1541 days to the 56-day target
54%decided within 8 weeks
82%approved
2,226decided in the last year

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

Public comments

No public comments yet.

Last counted 25 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Statutory expiry
19 Nov 2026
Env. assessment
No

Historical activity at this location

1 nearby application on record - archival context, not part of the live application.

Within ~100m

Nearby activity

2025
Penn Cottage Church Road Penn Buckinghamshire HP10 8NU
Listed building application for 6no. ground mounted solar panel array located in rear gar…
PL/25/5097/HB
Buckinghamshire
Planning Authority Score
1.3/10
Poor
#284 of 296 councils
Relevant to this application:
Householder decisions

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%).

Among the slowest councils in England
for householder decisions
These figures are council-wide context, not a prediction for this application. View full council performance
Buckinghamshire decision statistics
Based on MHCLG data, the year to March 2026
84%
Overall approval rate
Below avg (87%) #217 of 296
86%
Householder approved
Below avg (90%) #241 of 296
34%
Decided in 8 weeks
Below avg (63%) #280 of 296
55%
Extended time limit
Above avg (41%) #248 of 296
76%
Minor dwellings approved
491 decided (1-9 homes)
82%
Major dwellings approved
71 decided (10+ homes)
82%
Change of use approved
131 decided
4,446
Total decisions
690 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings

Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use

Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.