9 Masefield Avenue, Stanmore, Harrow, HA7 3LU

Pending PL/0704/26 - Certificate of Lawful Development Existing
Extensions & alterations
Council
Harrow 5.4/10
Date received
23 Mar 2026
Postcode
HA7 3LU
Type
Certificate of Lawful Development Existing

Description

Certificate of lawful development (proposed): Single storey rear extension

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Other new applications on this street

9 Masefield Avenue, Stanmore, Harrow, HA7 3LU

Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 3...

PL/1428/26 - 5 Jun 2026

37 Masefield Avenue, Stanmore, Harrow, HA7 3LU

Certificate of Lawful Development (Proposed): Change of use from Dwellinghouses ...

PL/0460/26 - 23 May 2026

9 Masefield Avenue, Stanmore, Harrow, HA7 3LU

Two storey rear extension; Alterations to roof to form rear dormer; Roof lights ...

PL/1179/26 - 14 May 2026

Nearby new applications

9 Masefield Avenue, Stanmore, Harrow, HA7 3LU

Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 3...

PL/1428/26 - 5 Jun 2026

5 White Orchards, Stanmore, Harrow, HA7 3NN

TPO No. 113 Uxbridge Road (No.2) Stanmore T10 (T1) Willow (rear garden left boun...

PL/0544/26 - 4 Jun 2026

1 Chartley Avenue, Stanmore, Harrow, HA7 3RA

Single storey side extension (Demolition of detached garage)

PL/1136/26 - 23 May 2026

37 Masefield Avenue, Stanmore, Harrow, HA7 3LU

Certificate of Lawful Development (Proposed): Change of use from Dwellinghouses ...

PL/0460/26 - 23 May 2026

Bentley Wood High School, Clamp Hill, Stanmore, Harrow, HA7 3JW

Certificate of Lawful Development (Proposed): Demolition and redevelopment of Mu...

PL/0875/26 - 23 May 2026

3 Old Lodge Way, Stanmore, Harrow, HA7 3AR

Outbuilding at rear for use incidental to main dwelling

PL/1085/26 - 23 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
37 Masefield Avenue, Stanmore, Harrow, HA7 3LU
Single storey rear extension: 6.00 metres deep, 3.10 metres maximum height and 2.90 metre…
PL/2417/25
2025
43 Sitwell Grove, Stanmore, Harrow, HA7 3NB
Conversion of dwelling to two flats (1 X 2 beds & 1 X 2 beds); single storey front extens…
PL/1981/25
2025 Approved
29 Masefield Avenue, Stanmore, Harrow, HA7 3LU
Single storey rear extension: 6.00 metres deep, 3.20 metres maximum height and 3.00 metre…
PL/0761/25
2024 Approved
7 Sitwell Grove, Stanmore, Harrow, HA7 3NB
Front porch; single storey side to rear extension; external alteration
PL/1393/24
2024 Refused
43 Sitwell Grove, Stanmore, Harrow, HA7 3NB
Conversion of dwelling to two flats (1 X 2 beds & 1 X 3 beds); single storey front extens…
PL/0645/24
2023 Approved
6 Chenduit Way, Stanmore, Harrow, HA7 3NY
Outbuilding in rear garden (Retrospective)
PL/0673/23
2023 Approved
8 Sitwell Grove, Stanmore, Harrow, HA7 3NB
Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 2.90 metre…
PL/0227/23
2023 Approved
8 Sitwell Grove, Stanmore, Harrow, HA7 3NB
Detached outbuilding in rear garden used as self-contained annexe incidental to main dwel…
PL/0351/23
2022 Approved
28 Masefield Avenue, Stanmore, Harrow, HA7 3LP
Single storey rear extension: 4.00 metres deep, 3.00 metres maximum height and 3.00 metre…
P/3318/22/PRIOR
2022 Approved
8 Masefield Avenue, Stanmore, Harrow, HA7 3LP
Single storey rear extension; alterations to form flat roof on existing front extension…
P/2127/22
2022 Approved
29 Masefield Avenue, Stanmore, Harrow, HA7 3LU
Single storey rear extension: 6.00 metres deep, 2.80 metres maximum height and 2.50 metre…
P/0533/22/PRIOR
2021 Approved
50 Masefield Avenue, Stanmore, Harrow, HA7 3LP
Single Storey Rear Extension: 6.00 metres deep, 3.00 metres maximum height, 3.00 metres h…
P/1484/21/PRIOR
2020 Approved
10 Sitwell Grove, Stanmore, Harrow, HA7 3NB
Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 2.70 metre…
P/4095/20/PRIOR
2020 Refused
10 Sitwell Grove, Stanmore, Harrow, HA7 3NB
Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 2.70 metre…
P/3469/20/PRIOR
2020 Approved
14 Sitwell Grove, Stanmore, Harrow, HA7 3NB
Single Storey Rear Extension: 6.00 metres deep, 3.00 metres maximum height, 3.00 metres h…
P/3017/20/PRIOR
2020 Approved
40 Sitwell Grove, Stanmore, Harrow, HA7 3NB
Single storey rear infill extension; front porch; conversion of garage to bedroom with in…
P/3152/20
2020 Refused
40 Sitwell Grove, Stanmore, Harrow, HA7 3NB
Front porch; conversion of garage to habitable room; single and two storey side to rear e…
P/1542/20
2019 Refused
40 Sitwell Grove, Stanmore, Harrow, HA7 3NB
Front porch; single and two storey side to rear extension; single and two storey rear ext…
P/3984/19
2019 Refused
39 Masefield Avenue, Stanmore, Harrow, HA7 3LU
Single Storey Rear Extension: 6 metres deep, 2.7 metres maximum height, 3.8 metres high t…
P/4857/19/PRIOR
2019 Refused
32 Masefield Avenue, Stanmore, Harrow, HA7 3LP
Relocation of main entrance from side elevation to front elevation; external alterations
P/3136/19
2018 Approved
39 Sitwell Grove, Stanmore, HA7 3NB
Single storey rear extension: extending 4 metres beyond the original rear wall 3 metres m…
P/2705/18/PRIOR
2018 Approved
62 Masefield Avenue, Stanmore, HA7 3LP
Certifcate of lawful proposed development: rear dormer; installation of two rooflights in…
P/1956/18
2018 Withdrawn
62 Masefield Avenue, Stanmore, Harrow, HA7 3LP
Rear dormer; installation of two rooflights in front rooslope; front porch
P/0174/18
2018 Approved
62 Masefield Avenue, Stanmore, Harrow, HA7 3LP
Single Storey Rear Extension: extending 6 metres beyond the original rear wall, 2.65 metr…
P/0202/18/PRIOR
2016 Approved
32 Sitwell Grove, Stanmore, HA7 3NB
Single storey front to side extension; front porch
P/4043/16
Harrow
Planning Authority Score
5.4/10
Average
#125 of 292 councils
Relevant to this application:
Householder decisions

Harrow is faster than most councils at deciding householder applications, ranking #88 out of 292. Harrow is also one of the strictest councils - it refuses more householder applications than almost any other, with only 83% approved vs 90% nationally.

One of the strictest councils
only 83% approved vs 90% nationally
These figures are council-wide context, not a prediction for this application. View full council performance
Harrow decision performance
Based on MHCLG data, 2025
78%
Overall approval rate
Below avg (87%) #270 of 292
83%
Householder approved
Below avg (90%) #255 of 292
74%
Decided in 8 weeks
Above avg (64%) #88 of 292
31%
Extended time limit
Below avg (40%) #60 of 292
49%
Minor dwellings approved
136 decided (1-9 homes)
100%
Major dwellings approved
4 decided (10+ homes)
54%
Change of use approved
24 decided
1,316
Total decisions
287 refused in 2025
Source: MHCLG planning statistics · See full council rankings