Abbey Cottage Poyle Lane Burnham Buckinghamshire SL1 8LQ Data via plota.co.uk

PL/26/06381/SA - Certificate of Lawful Use - Proposed Approved

Proposal

Certificate of lawfulness for proposed single-storey rear extension Data via plota.co.uk

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View original council record ↗Last checked 7 Oct 2026, 20:20

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Application progress

✓

Received

7 Aug 2026

✓

Approved

17 Sept 2026

Approved on 17 Sept 2026 · Delegated Decision · Last checked 18 Sept 2026

Documents 2

Decision & officer reports 2

PDF CASE OFFICER REPORT DELEGATED Case Officer Report · 17 Sept 2026 View ↗ PDF DECISION Decision Notice · 17 Sept 2026 View ↗

All documents on the council site ↗

Site constraints 7

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 ↗

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

Radon affected area, class 2; 1 listed building within 150 m; Inside the Slough built-up area; Tree preservation order 28 m away: South Bucks District Council Tree preservation Order No.13,1993. Dated 17/8/1993. Confirmed 9/2/1994; 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.

Sales history 2

Last sold for £695,000 in July 2005. Detached house, freehold.

15 July 2005£695,000

3 October 1997£275,000

Sale prices from HM Land Registry's price paid record, matched to this application by its address.

Building

Floor area163 m² (1,755 sq ft)

Energy ratingD (67 out of 100), could reach C

PropertyDetached house, 8 habitable rooms

Built1930 to 1949

HeatingBoiler and radiators, mains gas

WallsCavity wall, filled cavity

From the energy performance certificate lodged in May 2021, 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: SL1 8LQ
Received: 7 Aug 2026
Validated: 7 Aug 2026
Ward: Burnham
Parish: Burnham Parish Council
Case officer: Show
Target decision: 2 Oct 2026
Decision: Cert of Law PROPOSED-granted
Decision date: 17 Sept 2026
Decision level: Delegated Decision
Applicant: Show
Agent: CSK Architects

How this decision compares

Decided in 41 days from validation, 15 days faster than Buckinghamshire's median of 56 for extensions. Approved, as 82% of extensions here are.

This one41d

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 →

Public comments

No public comments yet.

Last counted 18 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Statutory expiry: 2 Oct 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

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.