Arkley 69 Marsham Way Gerrards Cross Buckinghamshire SL9 8AW Data via plota.co.uk

PL/26/04935/FA - Full Application Approved

Proposal

Extensions to dwelling including first floor side extension, 2x two storey rear extensions and replacement garage and front doors, as well as the reconfiguration of the rear patio area Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
17 Jun 2026
✓
Consultation
29 Jun 2026
✓
Approved
25 Sept 2026

Approved on 25 Sept 2026 · Delegated Decision · Last checked 25 Sept 2026

Site constraints 4

Gerrards Cross Centenary conservation area
Demolition needs planning permission and permitted development is restricted.
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; Inside the Gerrards Cross built-up area; Priority habitat 43 m away: Deciduous woodland.
Not affected
Outside flood zones 2 and 3 · Not green belt · No listed building 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 area536 m² (5,769 sq ft)
Energy ratingC (74 out of 100)
PropertyDetached house, 17 habitable rooms
Built1983 to 1990
HeatingBoiler and radiators, mains gas
WallsCavity wall, as built, insulated (assumed)

From the energy performance certificate lodged in September 2022, the latest held for this property. The building may have changed since. View the certificate

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Important details

Application type
Full Application
Postcode
SL9 8AW
Received
17 Jun 2026
Validated
17 Jun 2026
Ward
Gerrards Cross and Denham
Parish
Gerrards Cross Town Council
Case officer
Show
Target decision
13 Aug 2026
Decision
Approved
Decision date
25 Sept 2026
Decision level
Delegated Decision
Applicant
Show
Agent
DMH Planning Limited

How this decision compares

Decided in 100 days from validation, 44 days slower than Buckinghamshire's median of 56 for extensions. 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.

4 neighbours consulted · Last counted 25 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Neighbours
29 Jun 2026
Consultation
29 Jun 2026
Comments by
24 Sept 2026
Site or press notice
3 Sept 2026
Statutory expiry
12 Aug 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

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.