158, Trelawney Avenue, Slough, SL3 8RU

Pending P/12422/001 - Certificate Proposed (Use/Development)
Extensions & alterations
Council
Slough 2.1/10
Date received
10 Apr 2026
Date validated
10 Apr 2026
Postcode
SL3 8RU
Type
Certificate Proposed (Use/Development)

Description

Lawful development certificate for proposed loft conversion with rear dormer.

Get alerts nearby Council site ↗

Nearby new applications

146, High Street, Langley, Slough, SL3 8LF

Construction of a single storey side extension to replace existing storage area

P/03578/009 - 2 Jun 2026

31, Cockett Road, Slough, SL3 7TQ

Lawful development certificate for a proposed single storey side extension

P/20993/001 - 1 Jun 2026

143, High Street, Langley, Slough, SL3 8LP

Planning application for the proposed change of use from residential dwelling (U

P/03007/004 - 19 May 2026

3, Cedar Way, Slough, SL3 7JT

Construction of a proposed single storey rear extension to existing dwelling.

P/08233/004 - 12 May 2026

The New Langley Dental Clinic, 84, High Street, Langley, Slough, SL3 8JS

Planning application for the proposed change of use of existing C3 residential f

P/00787/005 - 11 May 2026

15, Cedar Way, Slough, SL3 7JX

Non material amendment to planning application P/01423/014 dated 09/02/2026 (To

P/01423/015 - 11 May 2026

Historical activity at this location

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

Within ~100m

Nearby activity

2025 Approved
43, Ryvers Road, Slough, SL3 8RZ
The erection of a single storey rear extension, which would extend beyond the rear wall o…
Y/20922/001
2025 Refused
43, Ryvers Road, Slough, SL3 8RZ
The erection of a single storey rear extension, which would extend beyond the rear wall o…
Y/20922/000
2025 With conditions
11 & 13, Ryvers Road, Langley, SL3 8RZ
Construction of a first floor rear extensions
P/20755/000
2025
112, Trelawney Avenue, Slough, Slough, SL3 8RP
Retrospective application for front porch and single storey side extension and external m…
P/19993/004
2024 Refused
112, Trelawney Avenue, Slough, Slough, SL3 8RP
Retrospective application for single storey side and rear extension, loft dormer and outb…
P/19993/003
2024 Withdrawn
112, Trelawney Avenue, Slough, Slough, SL3 8RP
External insulation and K- Render to existing brick work to front elevation
P/19993/002
2024 Approved
11, Ryvers Road, Slough, SL3 8RZ
Lawful development certificate for a proposed loft conversion with rear dormer and 3no fr…
P/20545/001
2023 Approved
114, Churchill Road, Slough, SL3 7RB
The erection of a single storey rear extension, which would extend beyond the rear wall o…
Y/20182/000
2023 With conditions
116, Trelawney Avenue, Slough, SL3 8RP
Construction of a new porch following the demolition of existing porch
P/20123/000
2022 With conditions
112, Trelawney Avenue, Slough, SL3 8RP
Construction of a single storey side and part rear extension
P/19993/001
2022 Approved
112, Trelawney Avenue, Slough, SL3 8RP
The erection of a single storey rear extension, which would extend beyond the rear wall o…
Y/19993/000
2022 With conditions
129, Churchill Road, Slough, SL3 7RD
Construction of a single storey side and rear extension.
P/19678/001
2022 With conditions
152, Trelawney Avenue, Slough, SL3 8RU
Construction of a single storey side and rear extension
P/03562/003
2022 Approved
152, Churchill Road, Slough, SL3 7RB
The erection of a single storey rear extension, which would extend beyond the rear wall o…
Y/19736/000
2021 Approved
152, Trelawney Avenue, Slough, SL3 8RU
The erection of a single storey rear extension, which would extend beyond the rear wall o…
Y/03562/001
2021 Approved
129, Churchill Road, Slough, SL3 7RD
The erection of a single storey rear extension, which would extend beyond the rear wall o…
Y/19678/000
2021 Approved
78, Churchill Road, Slough, SL3 7RB
The erection of a single storey rear extension, which would extend beyond the rear wall o…
Y/19260/000
2020 With conditions
138, Churchill Road, Slough, SL3 7RB
Construction of a front porch and a single storey rear extension
P/15580/001
2020 With conditions
112, Churchill Road, Slough, SL3 7RB
Construction of a rear outbuilding.
P/15824/001
2019 Approved
142, Trelawney Avenue, Slough, SL3 8RU
Lawful development certificate for a proposed rear outbuilding.
P/03524/002
2017 Refused
123 & 125, Trelawney Avenue, Slough, SL3 8RG
Demolition of existing rear conservatory and construction of a two storey rear extension…
P/16159/001
2017 With conditions
51, Ryvers Road, Slough, SL3 8RZ
Construction of a first floor rear extension.
P/15347/002
2016 Approved
51, Ryvers Road, Slough, SL3 8RZ
Lawful development certificate for a proposed single storey rear extension and loft conve…
P/15347/001
2016 Approved
63, Spencer Road, Slough, SL3 8RR
Lawful development certificate for a proposed loft conversion, rear dormer and front porc…
P/16495/001
2016 Approved
63, Spencer Road, Slough, SL3 8RR
The erection of a single storey rear extension, which would extend beyond the rear wall o…
Y/16495/000
Slough
Planning Authority Score
2.1/10
Poor
#264 of 292 councils
Relevant to this application:
Householder decisions

Slough is one of the slowest councils in England for householder decisions, ranking #270 out of 292. Slough is also one of the strictest councils - it refuses more householder applications than almost any other, with only 82% approved vs 90% nationally.

Among the slowest councils in England
for householder decisions
These figures are council-wide context, not a prediction for this application. View full council performance
Slough decision performance
Based on MHCLG data, 2025
77%
Overall approval rate
Below avg (87%) #275 of 292
82%
Householder approved
Below avg (90%) #262 of 292
39%
Decided in 8 weeks
Below avg (64%) #270 of 292
42%
Extended time limit
Above avg (40%) #165 of 292
64%
Minor dwellings approved
47 decided (1-9 homes)
40%
Major dwellings approved
10 decided (10+ homes)
39%
Change of use approved
44 decided
637
Total decisions
146 refused in 2025
Source: MHCLG planning statistics · See full council rankings