16 Whyteladyes Lane Cookham Maidenhead SL6 9NA Data via plota.co.uk

26/01312/FULL - Full Refused

Proposal

Hip to gable, 1no. front dormer, 1no. rear dormer and alterations to fenestration and relocation of PV panels. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
27 May 2026
✓
Validated
8 Jul 2026
✗
Refused
27 Aug 2026
Appeal
Not lodged

Refused on 27 Aug 2026 · Delegated · Last checked 27 Aug 2026

Site constraints 3

Also on the record
Radon affected area, class 2; Inside the Cookham 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 · 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.

Sales history 3

Last sold for £700,000 in June 2018. Detached house, freehold.

15 June 2018£700,000
29 July 2013£320,000
11 December 2009£250,000

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

Building

Floor area137 m² (1,475 sq ft)
Energy ratingC (70 out of 100)
PropertyDetached house, 5 habitable rooms
Built1950 to 1966
HeatingBoiler and radiators, mains gas
WallsCavity wall, filled cavity

From the energy performance certificate lodged in October 2021, the latest held for this property. The building may have changed since. View the certificate

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Important details

Application type
Full
Postcode
SL6 9NA
Received
27 May 2026
Validated
8 Jul 2026
Ward
Bisham And Cookham
Parish
Cookham Parish
Case officer
Show
Target decision
1 Sept 2026
Decision
Refuse
Decision date
27 Aug 2026
Decision level
Delegated
Applicant
Show
Agent
Qarib Nazir

How this decision compares

Decided in 50 days from validation, about the council's usual 53 days. Refused, as 25% of extensions here are.

77%decided within 8 weeks
75%approved
835decided in the last year

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

Consultation & key dates

Alt. reference
PP-14921964
Planning Portal ref
PP-14921964
Comments by
5 Aug 2026
Statutory expiry
1 Sept 2026
Env. assessment
No
Windsor and Maidenhead
Planning Authority Score
5.3/10
Average
#135 of 296 councils
Relevant to this application:
Householder decisions

Windsor and Maidenhead is faster than most councils at deciding householder applications, ranking #82 out of 296. Only 28% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Windsor and Maidenhead is also one of the strictest councils - it refuses more householder applications than almost any other, with only 74% approved vs 90% nationally.

One of the strictest councils
only 74% approved vs 90% nationally
These figures are council-wide context, not a prediction for this application. View full council performance
Windsor and Maidenhead decision statistics
Based on MHCLG data, the year to March 2026
72%
Overall approval rate
Below avg (87%) #293 of 296
74%
Householder approved
Below avg (90%) #294 of 296
75%
Decided in 8 weeks
Above avg (63%) #82 of 296
28%
Extended time limit
Below avg (41%) #47 of 296
44%
Minor dwellings approved
156 decided (1-9 homes)
96%
Major dwellings approved
27 decided (10+ homes)
64%
Change of use approved
25 decided
1,530
Total decisions
434 refused in the year to March 2026

Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

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.