12 Newbury Drive Maidenhead SL6 1XG Data via plota.co.uk

26/02355/FULL - Full Awaiting decision
Extensions & alterations

Proposal

Part garage conversion, single storey front extension, first floor side extension, new steps and alterations to fenestration. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
23 Sept 2026
✓
Validated
22 Oct 2026
Decision
Expected by 16 Dec 2026

Under consideration

No decision has been issued yet. Plota predicts a decision around 14 Dec 2026, from Windsor and Maidenhead's recent extensions.

Comments are open until 18 Nov 2026

Comment on this application ↗

Documents 7

Statements & assessments 3

PDF Preliminary roost assessment Supporting Information - Ecology · 24 Sept 2026 View ↗ PDF Flood risk assessment Supporting Information - Flood Risk · 24 Sept 2026 View ↗ PDF Design & access statement Design and Access Statement · 24 Sept 2026 View ↗

Application forms 2

PDF Cil form 1 CIL Documents · 24 Sept 2026 View ↗ PDF Application form Application Forms · 24 Sept 2026 View ↗

Consultation & comments 1

PDF Neighbour notification list Neighbour Notification List · 22 Oct 2026 View ↗

Other documents 1

PDF History log Property History · 22 Oct 2026 View ↗

All documents on the council site ↗

Site constraints 6

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 ↗
Also on the record
Local nature reserve 337 m away: Braywick Park; Radon affected area, class 3; National infrastructure project 1647 m away: M4 Junctions 3 to 12 Smart Motorway; SSSI 429 m away: Bray Meadows SSSI; 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 23 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.

Sales history 1

Last sold for £820,000 in July 2020. Detached house, freehold.

30 July 2020£820,000

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

Building

Floor area153 m² (1,647 sq ft)
Energy ratingE (48 out of 100), could reach B
PropertyDetached house, 8 habitable rooms
Built1976 to 1982
HeatingBoiler and radiators, mains gas
WallsCavity wall, as built, partial insulation (assumed)

From the energy performance certificate lodged in September 2019, the latest held for this property. The building may have changed since. View the certificate

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Important details

Council
Windsor and Maidenhead
Application type
Full
Postcode
SL6 1XG
Received
23 Sept 2026
Validated
22 Oct 2026
Ward
Oldfield
Parish
Maidenhead Unparished
Target decision
16 Dec 2026
Applicant
Show
Agent
Show

Decision outlook

Day 6 of the 56-day target. Windsor and Maidenhead usually decides extensions by day 53.

Day 650 days to the 56-day target
76%decided within 8 weeks
75%approved
862decided 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

Comments by
18 Nov 2026
Statutory expiry
16 Dec 2026
Env. assessment
No

Historical activity at this location

25 nearby applications on record - archival context, not part of the live application.

Within ~100m

Nearby activity

2025 Approved
13 Cannock Close Maidenhead SL6 1XB
Garage conversion, new front porch, single storey rear extension and first floor side ext…
25/00332/FULL
2024 Approved
10 Cannock Close Maidenhead SL6 1XB
New side boundary wall (retrospective) and new side gate.
24/02654/FULL
2024 Refused
13 Cannock Close Maidenhead SL6 1XB
New front porch, garage conversion, single storey rear extension and first floor side ext…
24/01919/FULL
2023 Approved
12 Cannock Close Maidenhead SL6 1XB
Single storey front extension with entrance canopy, part single, part two storey, part fi…
23/02868/FULL
2023 Approved
12 Cannock Close Maidenhead SL6 1XB
Single storey front extension with new canopy, single storey rear extension, first floor…
23/01799/FULL
2023 Approved
1 Newbury Drive Maidenhead SL6 1XG
Single storey front/side extension, single storey rear extension, new pitched roof to the…
23/01607/FULL
2023 Approved
1 Cleveland Close Maidenhead SL6 1XE
Single storey side/rear extension, 1 no. rooflight and alterations to fenestration
23/01251/FULL
2023 Approved
5 Cleveland Close Maidenhead SL6 1XE
Installation of solar thermal panels to the garage roof (Part Retrospective).
23/00641/FULL
2023 Approved
10 Cannock Close Maidenhead SL6 1XB
Single storey front, side, rear and first floor side extensions, garage conversion and al…
23/00296/FULL
2022 Approved
8 Newbury Drive Maidenhead SL6 1XG
Garage conversion, single storey side extension, single storey rear extension, raised rea…
22/03030/FULL
2021 Approved
3 Newbury Drive Maidenhead SL6 1XG
Garage conversion with new pitched roof over.
21/03630/FULL
2021 Approved
5 Cleveland Close Maidenhead SL6 1XE
Part single/part two storey side extension with new balcony to rear, single storey side e…
21/00147/FULL
2020 Refused
3 Cheviot Close Maidenhead SL6 1XD
Single storey front extension to garage and garage conversion and a new front/side bounda…
20/01601/FULL
2020 Approved
5 Cleveland Close Maidenhead SL6 1XE
Single storey front extension to the garage, part single part two storey rear extension a…
20/00707/FULL
2020 Refused
12 Cannock Close Maidenhead SL6 1XB
Part single/part two storey rear extension, first floor side extension, single storey fro…
20/00956/FULL
2020 Withdrawn
3 Cheviot Close Maidenhead SL6 1XD
Single storey side rear extension, single storey side extension, garage conversion, 1no…
20/00192/FULL
2020 Refused
12 Cannock Close Maidenhead SL6 1XB
Part single/part two storey rear extension, first floor side extension, single storey fro…
20/00317/FULL
2019 Approved
3 Cleveland Close Maidenhead SL6 1XE
Single storey front porch extension
19/03236/FULL
2019 Approved
3 Cleveland Close Maidenhead SL6 1XE
Single storey rear extension no greater than 5m in depth, 3.458m high with an eaves heigh…
19/00731/PDXL
2018 Approved
4 Cheviot Close Maidenhead SL6 1XD
Mono-pitch roof over entrance and garage, wrapping around the side. First floor side exte…
18/02968/FULL
2018 Approved
6 Cannock Close Maidenhead SL6 1XB
Single storey rear and side extension, and extended dropped kerb (Revision to approved sc…
18/01999/FULL
2017 Approved
11 Chiltern Road Maidenhead SL6 1XA
New boundary treatment
17/02792/FULL
2017 Withdrawn
11 Chiltern Road Maidenhead SL6 1XA
Construction of new fence bordering the rear and side garden.
17/02151/CPD
2017 Approved
13 Chiltern Road Maidenhead SL6 1XA
Single storey rear extension, single storey front, first floor extension over garage and…
17/01658/FULL
2017 Approved
13 Chiltern Road Maidenhead SL6 1XA
Single storey rear extension and pitch roof to front porch.
17/00759/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

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.