4 Horseguards Drive Maidenhead SL6 1XL Data via plota.co.uk

Decided 25/02717/CPD
Council
Windsor and Maidenhead 5.3/10
Date received
around 14 Oct 2025
Date validated
14 Oct 2025
Postcode
SL6 1XL

Description

Certificate of lawfulness to determine whether the proposed garage conversion and alterations to fenestration is lawful. Data via plota.co.uk

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Last checked

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 ↗
Air quality management area: Maidenhead AQMA
The council has declared the area as failing an air quality objective.
Schemes that add traffic, parking or combustion plant are assessed against the area's action plan and may need an air quality assessment.
Council record ↗
Also on the record
4 listed buildings within 150 m; Radon affected area, class 3; National infrastructure project 1980 m away: M4 Junctions 3 to 12 Smart Motorway; Inside the Maidenhead built-up area.
Not affected
Not green belt · No scheduled monument at the site

Checked on 2 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.

Sales history 1

Last sold for £680,000 in February 2021. Detached house, freehold.

19 February 2021£680,000

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

Building

Floor area107 m² (1,152 sq ft)
Energy ratingD (64 out of 100), could reach C
PropertyDetached house, 7 habitable rooms
Built1976 to 1982
HeatingBoiler and radiators, mains gas
WallsCavity wall, filled cavity

From the energy performance certificate lodged in April 2024, the latest held for this property, matched to this application by its address. The building may have changed since. View the certificate

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Other new applications on this street

29 Oct 2026Pending

2 Horseguards Drive Maidenhead SL6 1XL

Certificate of lawfulness to determine whether the proposed erection of two rear...

26/02576/CPD

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
29 Oct 2026Pending

2 Horseguards Drive Maidenhead SL6 1XL

Certificate of lawfulness to determine whether the proposed erection of two rear...

26/02576/CPD
28 Oct 2026Pending

4 Green Lane Maidenhead SL6 1XZ

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

26/02283/FULL
28 Oct 2026Pending

129 And Land Adjacent To 129 Bridge Road Maidenhead SL6 8NB

Single storey rear extension, alterations to fenestration, installation of an ex...

26/02587/FULL
22 Oct 2026Pending

12 Newbury Drive Maidenhead SL6 1XG

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

26/02355/FULL
21 Oct 2026Pending

Bridge Clinic Bridgewater Lodge 160 Bridge Road Maidenhead SL6 8DG

(T1) Oak - Tip reduce branches that overhang the rear boundary by 2/3 metres.

26/02580/TCA

Historical activity at this location

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

Within ~100m

Nearby activity

2025 Refused
9 Medallion Place Maidenhead SL6 1TF
(T1) Black Walnut - Crown reduce leaving 42m height and 28m spread. (T2) Black Walnut - C…
25/01829/TPO
2024 Refused
7 Medallion Place Maidenhead SL6 1TF
London Plane - Reduce back to previous pollard points (034/1999/TPO)
24/00480/TPO
2022 Approved
38 Oldacres Maidenhead SL6 1XJ
New front porch, single storey rear extension with raised terrace, steps and balustrade.
22/01324/FULL
2022 Approved
7 Horseguards Drive Maidenhead SL6 1XL
Two storey rear extension to include x2 Juliette balcony, raised decking, new steps and a…
22/01290/FULL
2020 Approved
9 Medallion Place Maidenhead SL6 1TF
T1 Black Walnut Crown lift the canopy of the tree over the road and driveway of 10 13 and…
20/01613/TPO
2020 Approved
7 Medallion Place Maidenhead SL6 1TF
(T1) London Plane: Crown thin by 30%, crown lift to raise crown to 3 metres above conserv…
20/00495/TPO
2019 Refused
9 Medallion Place Maidenhead SL6 1TF
(T1, T2 and T3) x3 Black Walnuts - crown reduce by 2m and leave a final spread of 7m.
19/02549/TPO
2018 Withdrawn
9 Medallion Place Maidenhead SL6 1TF
(T1) Ash - crown reduction of 40% and (T2) species unknown - remove split limb.
18/01923/TPO
2019 Approved
10 Horseguards Drive Maidenhead SL6 1XL
Single storey rear extension
19/01418/FULL
2019 Approved
Land Between Horseguards Drive And Guards Club Road Maidenhead
Yew x 3 - Crown reduce by 2m. Shape to same as other yews within the row. (TPO 14 of 2001…
19/01187/TPO
2019 Approved
Land Between Horseguards Drive And Guards Club Road Maidenhead
T1 x6 Yew trees: Reduce height by 3m and spread by 1.5m
19/01244/TCA
2018 Approved
7 Medallion Place Maidenhead SL6 1TF
(T1) London Plane - crown reduce overall back to previous reduction points, approx 4-4.5m…
18/03351/TPO
2018 Approved
21 Horseguards Drive Maidenhead SL6 1XL
Single storey rear undercroft extension, new windows and part garage conversion into habi…
18/02900/FULL
2018 Approved
32 Horseguards Drive Maidenhead SL6 1XL
Replacement rear steps.
18/02321/FULL
2018 Approved
13 Horseguards Drive Maidenhead SL6 1XL
Single storey rear extension with a new raised patio, rear dormer and conversion of x2 ga…
18/01228/FULL
2018 Approved
7 Medallion Place Maidenhead SL6 1TF
(T1) - London Plane - Please see schedule (TPO 34 of 1999).
18/01075/TPO
2018 Approved
30 Guards Club Road Maidenhead SL6 8DN
First floor extension to the south elevation and associated parking.
18/00987/FULL
2018 Approved
The Bridge Clinic Oldfield Lodge Bridge Road Maidenhead SL6 8DG
(T1) Hazel - Reduce height by 7m. (T2) Ash - Fell.
18/00750/TCA
2017 Refused
32 Horseguards Drive Maidenhead SL6 1XL
Insertion of side window in loft (Retrospective)
17/03677/FULL
2017 Refused
32 Oldacres Maidenhead SL6 1XJ
New side facing dormer, raising and alterations of the roof and chimney and x2 rooflights
17/02580/FULL
2017 Approved
9 Horseguards Drive Maidenhead SL6 1XL
One window at the front elevation to be enlarged. Remove existing front door system and f…
17/01840/FULL
2016 Approved
9 Horseguards Drive Maidenhead SL6 1XL
3 No. front dormers to facilitate a loft conversion
17/00038/FULL
2016 Approved
Moonrakers 24 Horseguards Drive Maidenhead SL6 1XL
Two-storey side extension, rear dormer
16/03421/FULL
2016 Approved
32 Oldacres Maidenhead SL6 1XJ
Part two part single storey rear extension with 4x rooflights.
16/02149/FULL
2021 Approved
20 Horseguards Drive Maidenhead SL6 1XL
Certificate of lawfulness to determine whether the erection of two rear dormers with Juli…
21/02657/CPD
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.