Dukes Kiln 14 Dukes Kiln Drive Gerrards Cross Buckinghamshire SL9 7HD Data via plota.co.uk

PL/26/05603/SA - Certificate of Lawful Use - Proposed Approved

Proposal

Certificate of lawfulness for proposed conversion of existing garage into habitable accommodation. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
13 Jul 2026
✓
Approved
7 Sept 2026

Approved on 7 Sept 2026 · Delegated Decision · Last checked 8 Sept 2026

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 ↗
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; Priority habitat 2 m away: No main habitat but additional habitats present; Registered park or garden 241 m away: Bulstrode Park; Inside the Gerrards Cross built-up area; Tree preservation order 29 m away: Bucks County Council (Eton Rural District) Tree Preservation Order No. 3; 1950; dated 12/1/50 under; National infrastructure project 1799 m away: SDC M40 Campus, at pre-application.
Not affected
Outside flood zones 2 and 3 · No listed building at the site · No scheduled monument at the site

Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, the Planning Inspectorate, 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 area798 m² (8,590 sq ft)
Energy ratingB (81 out of 100)
PropertyDetached house, 16 habitable rooms
Built2003 to 2006
HeatingBoiler and underfloor heating, mains gas
WallsCavity wall, as built, insulated (assumed)

From the energy performance certificate lodged in May 2026, the latest held for this property. The building may have changed since. View the certificate

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Important details

Application type
Certificate of Lawful Use - Proposed
Postcode
SL9 7HD
Received
13 Jul 2026
Validated
13 Jul 2026
Ward
Farnhams and Stoke Poges
Parish
Fulmer Parish Council
Case officer
Show
Target decision
7 Sept 2026
Decision
Cert of Law PROPOSED-granted
Decision date
7 Sept 2026
Decision level
Delegated Decision
Applicant
Show
Agent
Hapticity Architects Ltd

How this decision compares

Decided in 56 days from validation, about the council's usual 56 days. Approved, as 82% of extensions here are.

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 8 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Statutory expiry
7 Sept 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.