Kingfisher House 13 Avenue Road Maidenhead SL6 1UG Data via plota.co.uk

26/02670/FULL - Full Awaiting decision
Extensions & alterations

Proposal

Single storey rear extension. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
2 Nov 2026
✓
Validated
5 Nov 2026
Decision
Expected by 30 Dec 2026

Under consideration

No decision has been issued yet. Plota predicts a decision around 29 Dec 2026, from Windsor and Maidenhead's recent extensions.

Comments are open until 3 Dec 2026

Comment on this application ↗

Documents 8

Statements & assessments 3

PDF Preliminary roost assessment Supporting Information - Ecology · 2 Nov 2026 View ↗ PDF Great crested newt habitat assessment Supporting Information - Ecology · 2 Nov 2026 View ↗ PDF Flood risk assessment Supporting Information - Flood Risk · 2 Nov 2026 View ↗

Application forms 1

PDF Cil form 1 CIL Documents · 2 Nov 2026 View ↗

Consultation & comments 1

PDF Neighbour notification list Neighbour Notification List · 6 Nov 2026 View ↗

Other documents 3

PDF Advert Supporting Information - General · 6 Nov 2026 View ↗ PDF History log Property History · 5 Nov 2026 View ↗ PDF Application Forms Application Forms · 2 Nov 2026 View ↗

All documents on the council site ↗

Site constraints 7

Flood zone 3, rivers and sea
High chance: a 1 in 100 or greater annual chance from rivers, or 1 in 200 from the sea. Any development here needs a flood risk assessment. Defences are not counted.
The Environment Agency flood map for planning. Homes in zone 3 must also pass the sequential test. Surface water flooding is a separate map.
Flood map ↗
Habitat network: Network Enhancement Zone 2
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
Also on the record
SSSI 239 m away: Bray Meadows SSSI; Local nature reserve 372 m away: Braywick Park; National infrastructure project 1339 m away: M4 Junctions 3 to 12 Smart Motorway; Radon affected area, class 3; Inside the Maidenhead built-up area.
Not affected
Not green belt · No listed building at the site · No scheduled monument at the site

Checked on 7 November 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 area324 m² (3,488 sq ft)
Energy ratingC (76 out of 100)
PropertyDetached house, 11 habitable rooms
Built1967 to 1975
HeatingBoiler and radiators, mains gas, Boiler and underfloor heating, mains gas
WallsCavity wall, as built, no insulation (assumed)

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

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Other new applications on this street

12 Oct 2026Pending

Rivermead Avenue Road Maidenhead SL6 1UG

(T2) Ash - Crown reduce by 4m and remove dead wood, leaving a final height of 13...

26/02450/TCA

Nearby new applications

29 Oct 2026Pending

4 Chauntry Road Maidenhead SL6 1TS

Single storey side/rear extension, alterations to the existing single storey sid...

26/02649/FULL
28 Oct 2026Pending

4 Green Lane Maidenhead SL6 1XZ

Garage conversion, first floor side extension, new raised terrace with glass bal...

26/02283/FULL
22 Oct 2026Pending

12 Newbury Drive Maidenhead SL6 1XG

Part garage conversion, single storey front extension, first floor side extensio...

26/02355/FULL
12 Oct 2026Pending

Rivermead Avenue Road Maidenhead SL6 1UG

(T2) Ash - Crown reduce by 4m and remove dead wood, leaving a final height of 13...

26/02450/TCA
29 Sept 2026Pending

4 Chalgrove Close Maidenhead SL6 1XN

Single storey side extension, two storey side extension, 2no. rear dormers, alte...

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29 Sept 2026Pending

East Bank River Road Taplow Buckinghamshire SL6 0BG

Felling of T1 (Magnolia), reduction of lowest limb by 2m of T2 (Chestnut), crown...

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Important details

Council
Windsor and Maidenhead
Application type
Full
Postcode
SL6 1UG
Received
2 Nov 2026
Validated
5 Nov 2026
Ward
Oldfield
Parish
Bray Parish
Case officer
Show
Target decision
30 Dec 2026
Applicant
Show
Agent
Anne Owen

Decision outlook

Day 6 of the 56-day target. Windsor and Maidenhead usually decides extensions by day 54.

Day 650 days to the 56-day target
75%decided within 8 weeks
76%approved
965decided 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-15315475
Planning Portal ref
PP-15315475
Comments by
3 Dec 2026
Statutory expiry
30 Dec 2026
Env. assessment
No

Historical activity at this location

23 previous applications on record - archival context, not part of the live application.

This property

Previous applications at this address

2020 Approved
Single storey side/rear extension.
20/02591/FULL
Within ~100m

Nearby activity

2024 Approved
50 Chiltern Road Maidenhead SL6 1XA
Installation of an air source heat pump
24/02674/FULL
2024 Approved
Avenue Cottage Avenue Road Maidenhead SL6 1UG
Horse chestnut to be pollarded (001/1993/TPO)
24/02193/TPO
2023 Approved
Avenue Cottage Avenue Road Maidenhead SL6 1UG
Replacement of existing conservatory glass roof to new pitched tiled roof and windows and…
23/00890/FULL
2023 Approved
Two Ways Avenue Road Maidenhead SL6 1UG
Detached carport with habitable accommodation within the roofspace.
23/00667/FULL
2022 Refused
Two Ways Avenue Road Maidenhead SL6 1UG
New detached carport with accommodation in the roof space and external staircase.
22/00974/FULL
2021 Approved
Two Ways Avenue Road Maidenhead SL6 1UG
Detached carport.
21/03522/FULL
2021 Refused
The White House Bray Road Maidenhead SL6 1UQ
New side conservatory.
21/02340/FULL
2021 Approved
Little Willows Avenue Road Maidenhead SL6 1UG
Variation (under Section 73) of Condition 2 (Materials) and Condition 3 (approved plans)…
21/01239/VAR
2020 Approved
Little Willows Avenue Road Maidenhead SL6 1UG
New front porch, loft conversion facilitated by new roof with front dormer and rooflights…
20/02904/FULL
2020 Approved
Fairings 4 Avenue Road Maidenhead SL6 1UG
Certificate of lawfulness to determine whether the part garage conversion to habitable ac…
20/02643/CPD
2018 Approved
Bamburi Avenue Road Maidenhead SL6 1UG
Garage conversion and single storey side extension
18/00666/FULL
2018 Approved
31 Chiltern Road Maidenhead SL6 1XA
New porch, part two storey side, part first floor side and single storey rear extensions.
18/00360/FULL
2017 Approved
33 Chiltern Road Maidenhead SL6 1XA
Construction of a two storey front/side/rear extension and a two storey rear extension, n…
17/03019/FULL
2017 Approved
Avenue Cottage Avenue Road Maidenhead SL6 1UG
(T1) - Horse Chestnut - Re pollard (TPO 1 of 1993)
17/02856/TPO
2017 Approved
33 Chiltern Road Maidenhead SL6 1XA
Certificate of lawfulness to determine whether a single storey rear extension is lawful.
17/02247/CPD
2017 Withdrawn
33 Chiltern Road Maidenhead SL6 1XA
Certificate of lawfulness to determine whether a single storey rear extension is lawful.
17/01764/CPD
2017 Approved
Skomer Avenue Road Maidenhead SL6 1UG
First floor side extension over garage, single storey rear extension and two storey annex…
17/00634/FULL
2016 Refused
Skomer Avenue Road Maidenhead SL6 1UG
(T1) Copper Beech - crown reduction of 2-3m.
16/03436/TPO
2016 Approved
Little Willows Avenue Road Maidenhead SL6 1UG
Single storey front extension with pitched roof, single storey rear extension, garage con…
16/03090/FULL
2016 Withdrawn
Little Willows Avenue Road Maidenhead SL6 1UG
Certificate of lawfulness to determine whether a single storey rear extension, conversion…
16/02344/CPD
2016 Approved
Navarac Avenue Road Maidenhead SL6 1UG
Single storey front extension, first floor extension over car port and garage and alterat…
16/01367/FULL
2016 Approved
Two Ways Avenue Road Maidenhead SL6 1UG
Single storey front extension, hip to gable roof extension and 2 No.front and 2 No. rear…
16/00220/FULL
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
Source: MHCLG planning statistics · See full council rankings

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.