11 Stafford Road, Harrow Weald, Harrow, HA3 6NB Data via plota.co.uk

Pending PL/0149/26
Extensions & alterations
Appeal
Dismissed · 31 Jul 2026 · Written Representations · Inspectorate case ↗
Council
Harrow 4.9/10
Date received
19 Jan 2026
Postcode
HA3 6NB

Description

Single storey side and rear extensions: external alterations Data via plota.co.uk

Get alerts nearby Council site ↗

Last checked

Decision outlook

Plota predicted a decision around 13 Sept 2026; it is now day 237.

Day 237, past the statutory target. 87% of full applications in Harrow are decided within thirteen weeks; extensions of time are common, and the council need not decide on the day. Last seen undecided on 24 Aug 2026.

Day 237181 days past the 56-day target
61%decided within 8 weeks
87%approved
54,582decided in the last year

Plota live figures for full applications decided across the UK in the last twelve months, from validation; too few recent full applications in Harrow to go on. Harrow decision record →

Site constraints 3

Air quality management area: Harrow 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 ↗
Habitat network: Network Enhancement Zone 2
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
Also on the record
Inside the Harrow built-up area.
Not affected
Outside flood zones 2 and 3 · Not green belt · 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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Nearby new applications

27 Aug 2026Pending

5 Clewer Crescent, Harrow Weald, Harrow, HA3 5QA

Certificate of Lawful Development (Existing): Single storey rear extension; exte...

PL/2223/26
21 Aug 2026Approved

50 Long Elmes, Harrow Weald, Harrow, HA3 5JL

Certificate of Lawful Development (Proposed): Rear dormer; three rooflights in f...

PL/1774/26
20 Aug 2026Pending

72 Boxtree Road, Harrow Weald, Harrow, HA3 6TH

Single storey front extension incorporating front porch; alteration of roof to s...

PL/1989/26
28 Jul 2026Approved

72 Boxtree Road, Harrow Weald, Harrow, HA3 6TH

Certificate of Lawful Development (Proposed): Alterations and extension to roof ...

PL/1987/26
22 Jul 2026Pending

129 Long Elmes, Harrow Weald, Harrow, HA3 5LB

First floor side to rear extension; single and two storey rear extension

PL/1928/26
21 Jul 2026Approved

129 Long Elmes, Harrow Weald, Harrow, HA3 5LB

Certificate of Lawful Development (Proposed): Alterations and extension to roof ...

PL/1927/26

Historical activity at this location

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

Within ~100m

Nearby activity

2025 Approved
58 Stafford Road, Harrow Weald, Harrow, HA3 6NA
Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 3.00 metre…
PL/2569/25
2025 Approved
123 Boxtree Lane, Harrow Weald, Harrow, HA3 6JQ
Single storey rear extension (Demolition of outbuilding at rear)
PL/1361/25
2025 Approved
9 Stafford Road, Harrow Weald, Harrow, HA3 6NB
Front porch, Single storey side to rear extension (Demolition of lean-to at side)
PL/0480/25
2024 Refused
9 Stafford Road, Harrow Weald, Harrow, HA3 6NB
Single storey front extension incorporating front porch, Single storey side to rear exten…
PL/2069/24
2023 Refused
48 Stafford Road, Harrow Weald, Harrow, HA3 6NA
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Use of (Use class C3) into house of multipl…
P/2754/23
2023 Approved
48 Stafford Road, Harrow Weald, Harrow, HA3 6NA
Single storey rear extension: 6.00 metres deep, 2.77 metres maximum height and 2.77 metre…
P/1954/23/PRIOR
2023 Approved
48 Stafford Road, Harrow Weald, Harrow, HA3 6NA
Single storey rear extension: 6.00 metres deep, 2.77 metres maximum height and 2.77 metre…
P/1955/23/PRIOR
2023 Approved
34 Stafford Road, Harrow Weald, Harrow, HA3 6NA
Single storey rear extension: 5.00 metres deep, 3.31 metres maximum height and 3.00 metre…
P/0631/23/PRIOR
2022 Approved
129 Whittlesea Road, Harrow Weald, Harrow, HA3 6ND
Single and two storey side extension; single storey rear extension; external alterations
P/3881/22
2022 Refused
129 Whittlesea Road, Harrow Weald, Harrow, HA3 6ND
Single and two storey side extension; single and two storey rear extension; external alte…
P/2845/22
2020 Refused
25 Stafford Road, Harrow Weald, Harrow, HA3 6NB
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Change of use from C3 to C3B.
P/3991/20
2021 Approved
125 Boxtree Lane, Harrow Weald, Harrow, HA3 6JQ
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Single storey rear extension (Following Est…
P/0171/21
2020 Approved
125 Boxtree Lane, Harrow Weald, Harrow, HA3 6JQ
Single storey rear extension: 6.00 metres deep, 3.17 metres maximum height and 3.00 metre…
P/4235/20/PRIOR
2020 Approved
125 Boxtree Lane, Harrow Weald, Harrow, HA3 6JQ
Single and two storey side extension; Single storey rear extension (please note revised d…
P/2051/20
2020 Approved
23 Stafford Road, Harrow Weald, Harrow, HA3 6NB
Single storey side extension (demolition of side extension)
P/2313/20
2020 Withdrawn
25 Stafford Road, Harrow Weald, Harrow, HA3 6NB
Invalid
P/2105/20
2019 Approved
46 Stafford Road, Harrow Weald, Harrow, HA3 6NA
Single Storey Rear Extension: 6 metres deep, 3 metres maximum height, 3 metres high to th…
P/2968/19/PRIOR
2019 Approved
30 Stafford Road, Harrow Weald, Harrow, HA3 6NA
Certificate of Lawful Development (Proposed): Rear dormer and insertion of two rooflights…
P/2133/19
2016 Approved
56 Stafford Road, Harrow, HA3 6NA
Single storey rear extension: extending 6 metres beyond the original rear wall 2.98 Metre…
P/3104/16
2016 Approved
Kingsley High School, Whittlesea Road, Harrow, HA3 6ND
Details pursuant to condition 8 (disposal of sewage) of planning permission p/0865/14 dat…
P/2697/16
2016 Approved
Kingsley High School, Whittlesea Road, Harrow, HA3 6ND
Compliance of conditions attached to planning permission p/0865/14 dated 1/5/14 for const…
P/1651/16
2016 Approved
56 Stafford Road, Harrow, HA3 6NA
Single storey rear extension: extending 4 metres beyond the original rear wall 2.98 Metre…
P/1190/16
Harrow
Planning Authority Score
4.9/10
Below average
#153 of 296 councils
Relevant to this application:
Householder decisions

Harrow ranks #115 out of 296 councils for householder decision speed. 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 statistics
Based on MHCLG data, the year to March 2026
78%
Overall approval rate
Below avg (87%) #273 of 296
83%
Householder approved
Below avg (90%) #261 of 296
71%
Decided in 8 weeks
Above avg (63%) #115 of 296
33%
Extended time limit
Below avg (41%) #77 of 296
44%
Minor dwellings approved
133 decided (1-9 homes)
80%
Major dwellings approved
5 decided (10+ homes)
38%
Change of use approved
26 decided
1,330
Total decisions
298 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings