55 Blackamoor Lane Maidenhead SL6 8RF Data via plota.co.uk

26/02086/CPD - Cert of Lawfulness of Proposed Dev Awaiting decision
Extensions & alterations

Proposal

Certificate of lawfulness to determine whether the proposed single storey rear extension, 1no. rear dormer, 2no. front rooflights are lawful. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
24 Aug 2026
Decision
Expected by 18 Oct 2026

This application is under consideration - no decision has been issued yet. Plota predicts a decision around 17 Oct 2026, from Windsor and Maidenhead's recent extensions.

Documents 3

Application forms 1

PDF Application form redacted Application Forms · 24 Aug 2026 View ↗

Consultation & comments 1

PDF Neighbour notification list Neighbour Notification List · 8 Sept 2026 View ↗

Other documents 1

PDF History log Property History · 7 Sept 2026 View ↗

All documents on the council site ↗

Site constraints 3

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
Inside the Maidenhead built-up area; the 1970s provisional farmland map had this area as grade 4, but it predates the buildings here and the current map does not class it as farmland.
Not affected
Not green belt · No listed building at the site · No scheduled monument at the site

Checked on 11 September 2026. Historic England, the Environment Agency, Natural England 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.

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Other new applications on this street

13 Aug 2026Pending

158 Blackamoor Lane Maidenhead SL6 8RN

Prior approval for the change of use of the ground floor from Use Class Eg(iii) ...

26/02001/CLAMA
8 Jul 2026Approved

35 Blackamoor Lane Maidenhead SL6 8RA

Certificate of lawfulness to determine whether the proposed 3no. front rooflight...

26/01661/CPD
29 Apr 2026Refused

30A Blackamoor Lane Maidenhead SL6 8RD

Single storey side/front extension, single story side/rear extension, new front ...

26/00622/FULL
21 Apr 2026Approved

108 Blackamoor Lane Maidenhead SL6 8RH

(T5) - Maple - Crown lift secondary and tertiary branches to a maximum of 2.5m o...

26/00837/TPO

Nearby new applications

8 Sept 2026Pending

Magnet Leisure Centre And Magnet Leisure Complex Car Park Holmanleaze Maidenhead SL6 8AW

Non material amendments to planning permission 25/00655/VAR to vary conditions 2...

26/02134/NMA
2 Sept 2026Pending

31 - 33 High Street Maidenhead SL6 1JG

Consent for 1no. internally illuminated fascia sign, 1no. internally illuminated...

26/02014/ADV
2 Sept 2026Pending

31 - 33 High Street Maidenhead SL6 1JG

Change of use to a bank with new shopfront, ATM machine and new signage.

26/02013/FULL
13 Aug 2026Pending

158 Blackamoor Lane Maidenhead SL6 8RN

Prior approval for the change of use of the ground floor from Use Class Eg(iii) ...

26/02001/CLAMA
29 Jul 2026Pending

HALIFAX 16 - 20 High Street Maidenhead SL6 1PZ

Replacement windows.

26/01633/FULL
23 Jul 2026Pending

Loraine 36 Forlease Road Maidenhead SL6 1RU

Single storey rear extension to the main dwelling, partial demolition to existin...

26/01706/FULL

Important details

Council
Windsor and Maidenhead
Application type
Cert of Lawfulness of Proposed Dev
Postcode
SL6 8RF
Received
24 Aug 2026
Validated
24 Aug 2026
Ward
St Marys
Parish
Maidenhead Unparished
Target decision
18 Oct 2026
Applicant
Show

Decision outlook

Day 19 of the 56-day target. Windsor and Maidenhead usually decides extensions by day 54.

Day 1937 days to the 56-day target
78%decided within 8 weeks
75%approved
640decided 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-15178633
Statutory expiry
18 Oct 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 Refused
30A Blackamoor Lane Maidenhead SL6 8RD
Single storey side/front extension, single story side/rear extension, new front canopy, 1…
25/00961/FULL
2025 Refused
11A Moorfield Terrace Maidenhead SL6 8RB
Detached outbuilding with air source heat pump to be used ancillary to No.11A Moorfield T…
25/00890/FULL
2024 Approved
13 Moorfield Terrace Maidenhead SL6 8RB
Single storey front extension, single storey rear extension, porch and alterations to fen…
24/00266/FULL
2023 Approved
1 Simpson Close Maidenhead SL6 8RZ
Construction of dormer to side (south) elevation, including one non-obscurely glazed open…
23/02982/FULL
2023 Approved
2 Simpson Close Maidenhead SL6 8RZ
Construction of dormer to the side (north) elevation, including non-obscurely glazed open…
23/02983/FULL
2023 Approved
1 Simpson Close Maidenhead SL6 8RZ
Single storey west extension with new steps and entrance canopy.
23/03019/FULL
2023 Approved
2 Simpson Close Maidenhead SL6 8RZ
Single storey west extension with new steps and entrance canopy.
23/03020/FULL
2023 Approved
47 Blackamoor Lane Maidenhead SL6 8RA
Single storey rear extension
23/03043/FULL
2023 Approved
31 Blackamoor Lane Maidenhead SL6 8RA
Loft conversion with 1no. rear dormer and alterations to fenestration.
23/02932/FULL
2023 Approved
43 Blackamoor Lane Maidenhead SL6 8RA
Single storey side/rear extension
23/01427/FULL
2022 Refused
1 Simpson Close Maidenhead SL6 8RZ
Single storey extension to the West elevation.
22/01091/FULL
2022 Refused
2 Simpson Close Maidenhead SL6 8RZ
Single storey extension to the West elevation.
22/01092/FULL
2021 Approved
11A - 11B Moorfield Terrace Maidenhead
Detached outbuilding and increase in height of the existing side boundary wall.
21/01801/FULL
2021 Approved
41 Blackamoor Lane Maidenhead SL6 8RA
New front bay window, single storey side/rear extension and enlargement of an existing re…
21/03285/FULL
2021 Approved
34 Blackamoor Lane Maidenhead SL6 8RG
First floor side extension with undercroft, 2no. front rooflights and alterations to fene…
21/02203/FULL
2021 Approved
41 Blackamoor Lane Maidenhead SL6 8RA
New front bay window, single storey side/rear extension and enlargement of an existing re…
21/02065/FULL
2021 Approved
25 Blackamoor Lane Maidenhead SL6 8RA
Single storey rear extension, x1 rear dormer, loft conversion and x3 rooflights to front…
21/00681/FULL
2021 Refused
34 Blackamoor Lane Maidenhead SL6 8RG
First floor side extension with undercroft and x2 front rooflights.
21/00013/FULL
2019 Approved
15 - 17 Moorfield Terrace Maidenhead
Single storey front and two storey rear extensions.
19/02059/FULL
2019 Approved
30A Blackamoor Lane Maidenhead SL6 8RD
Installation of 3 x Solar Photovoltaic panels on domestic flat roof. Note: We will instal…
19/01837/FULL
2019 Approved
2 Simpson Close Maidenhead SL6 8RZ
x2 side dormers.
19/00238/FULL
2018 Approved
35 Blackamoor Lane Maidenhead SL6 8RA
Single storey side extension, single storey rear extension and alterations to fenestratio…
18/00053/FULL
2017 Refused
2 Simpson Close Maidenhead SL6 8RZ
Side dormer
17/03320/FULL
2017 Approved
16 Blackamoor Lane Maidenhead SL6 8RD
Replacement garage
17/02211/FULL
2016 Approved
Grittony 28A Blackamoor Lane Maidenhead SL6 8RD
Construction of mono-pitched roof over existing bay windows
16/00224/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