Griffin House Preparatory School Station Road Little Kimble Buckinghamshire HP17 0XP Data via plota.co.uk

PL/26/02121/SA - Certificate of Lawful Use - Proposed Refused

Proposal

Certificate of lawfulness for proposed erection of a new garden room Data via plota.co.uk

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View original council record ↗Last checked 24 Aug 2026, 08:54

Application progress

✓

Received

16 Mar 2026

✗

Refused

7 May 2026

Appeal

Not lodged

Refused on 7 May 2026 · Delegated Decision · Last checked 11 Jul 2026

Documents 2

Decision & officer reports 2

PDF CASE OFFICER REPORT DELEGATED Case Officer Report · 7 May 2026 View ↗ PDF DECISION Decision Notice · 7 May 2026 View ↗

All documents on the council site ↗

Site constraints 11

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

Former Wycombe Rural District - 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 Named permitted development rights are withdrawn here.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.

Habitat network: Network Enhancement Zone 1

Where habitat is joined up enough to work as a network. Context, not a constraint on its own.

Also on the record

Special area of conservation about 373 m away: Chilterns Beechwoods; Scheduled monument about 190 m away: Motte and bailey castle, moated site and Roman villa immediately east of All Saint's Church; SSSI about 373 m away: Ellesborough and Kimble Warrens SSSI; Registered park or garden about 189 m away: Chequers; Inside the Little Kimble built-up area; Priority habitat about 44 m away: Deciduous woodland; 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

Checked on 6 October 2026. The pin for this application is the centre of its postcode rather than the building, so distances to nearby designations are measured from the postcode and can be out by the width of the postcode area. 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: Buckinghamshire
Application type: Certificate of Lawful Use - Proposed
Postcode: HP17 0XP
Received: 16 Mar 2026
Validated: 16 Mar 2026
Ward: Ridgeway East
Parish: Great and Little Kimble Cum Marsh
Case officer: Show
Target decision: 11 May 2026
Decision: Cert of Law PROPOSED-refused
Decision date: 7 May 2026
Decision level: Delegated Decision
Applicant: Show
Agent: 3BM Studio

How this decision compares

Decided in 52 days from validation, 4 days faster than Buckinghamshire's median of 56 for extensions. Refused, as 18% of extensions here are.

This one52d

Council56d

UK55d

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 →

Consultation & key dates

Statutory expiry: 11 May 2026
Env. assessment: No

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