13 Adderley Road, Harrow Weald, Harrow, HA3 7HS Data via plota.co.uk

Refused PL/1643/26 - Certificate of Lawful Development Proposed
Change of useExtensions & alterationsNew homes
Council
Harrow 4.9/10
Date received
17 Jun 2026
Postcode
HA3 7HS
Type
Certificate of Lawful Development Proposed

Description

Certificate of Lawful Development (Proposed): Change Of Use From dwelling house (Class C3) to a House In Multiple Occupation with 6 Bedrooms and 6 occupants max (small HMO) (Class C4); installation of windows and doors to rear at ground floor level Data via plota.co.uk

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Last checked

Site constraints 2

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 ↗
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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Other new applications on this street

18 Apr 2026Pending

58 Adderley Road, Harrow Weald, Harrow, HA3 7HT

Certificate of Lawful Development (Proposed): Front porch; alterations and exten...

PL/0804/26

Nearby new applications

10 Sept 2026Pending

25 Hibbert Road, Harrow Weald, Harrow, HA3 7JU

Certificate of lawful development (proposed): Alterations to roof to form end ga...

PL/2369/26
22 Aug 2026Pending

78 Spencer Road, Wealdstone, Harrow, HA3 7AR

Conversion of dwelling into four flats (2 X Studio, 1 x 1 bed & 1 X 2 bed); sing...

PL/2163/26
20 Aug 2026Pending

78 Spencer Road, Wealdstone, Harrow, HA3 7AR

Certificate Of Lawful Development (Proposed): Rear dormer; two rooflights in fro...

PL/2003/26
20 Aug 2026Pending

471 Kenton Lane, Harrow Weald, Harrow, HA3 7JW

(none)

PL/2046/26
20 Aug 2026Pending

34 College Close, Harrow Weald, Harrow, HA3 7BZ

Certificate Of Lawful Development (Proposed): Single storey side extension; conv...

PL/2030/26
12 Aug 2026Pending

78 Spencer Road, Wealdstone, Harrow, HA3 7AR

Conversion of dwelling into three flats (1 X Studio, 1 x 2 bed & 1 X 3 bed); Sin...

PL/2118/26

Historical activity at this location

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

Within ~100m

Nearby activity

2025
58 Adderley Road, Harrow Weald, Harrow, HA3 7HT
Single storey rear extension: 6.00 metres deep, 3.14 metres maximum height and 2.80 metre…
PL/3166/25
2025 Approved
2a Adderley Road, Harrow Weald, Harrow, HA3 7HT
Single storey rear extension
PL/0711/25
2022 Refused
36 Adderley Road, Harrow Weald, Harrow, HA3 7HT
Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 3.00 metre…
P/4136/22/PRIOR
2022 Refused
36 Adderley Road, Harrow Weald, Harrow, HA3 7HT
Single storey rear extension: 6.00 metres deep, 2.80 metres maximum height and 2.80 metre…
P/4137/22/PRIOR
2022 Approved
1 Adderley Road, Harrow Weald, Harrow, HA3 7HS
Re-location of heat pump source unit to rear elevation at first floor level; external alt…
P/3234/22
2022 Approved
35 Adderley Road, Harrow Weald, Harrow, HA3 7HS
Single storey rear extension: 4.00 metres deep, 2.40 metres maximum height and 2.60 metre…
P/2340/22/PRIOR
2022 Refused
35 Adderley Road, Harrow Weald, Harrow, HA3 7HS
Single storey rear extension: 3.00 metres deep, 2.40 metres maximum height and 2.60 metre…
P/1701/22/PRIOR
2021 Approved
86 Bishop Ken Road, Harrow Weald, Harrow, HA3 7HR
Single Storey Rear Extension: 6.00 metres deep, 3.45 metres maximum height, 3.00 metres h…
P/2654/21/PRIOR
2021 Approved
64 Adderley Road, Harrow Weald, Harrow, HA3 7HT
Single Storey Rear Extension: 6.00 metres deep, 3.30 metres maximum height, 3.00 metres h…
P/2628/21/PRIOR
2020 Approved
84 Bishop Ken Road, Harrow Weald, Harrow, HA3 7HR
Single storey side to rear extension (Retrospective); Proposed alterations to front eleva…
P/3439/20
2020 Approved
84 Bishop Ken Road, Harrow Weald, Harrow, HA3 7HR
Single storey side to rear extension (Retrospective); Proposed alterations to front eleva…
P/3438/20
2020 Approved
56 Adderley Road, Harrow, HA3 7HT
Structural alterations to form new openings to install 1no window / door and new warm roo…
BN/01128/2020
2020 Approved
84 Bishop Ken Road, Harrow Weald, Harrow, HA3 7HR
Single storey side to rear extension (Retrospective); Proposed alterations to front eleva…
P/1986/20
2020 Approved
84 Bishop Ken Road, Harrow Weald, Harrow, HA3 7HR
Single storey side to rear extension on dwellinghouse (Retrospective); Proposed alteratio…
P/1987/20
2020 Approved
24 Adderley Road, Harrow, HA3 7HT
Single storey rear extension: 6 metres deep 3.34 Metres maximum height 3.00 Metres high t…
P/0319/20/PRIOR
2017 Approved
52 Adderley Road, Harrow, HA3 7HT
Single storey rear extension: extending 6 metres beyond the original rear wall 2.79 Metre…
P/0974/17/PRIOR
2019 Approved
56 Adderley Road, Harrow Weald, Harrow, HA3 7HT
Single storey rear extension
P/2300/19
2018 Approved
60 Adderley Road, Harrow Weald, Harrow, HA3 7HT
Single Storey Rear Extension: 6 metres deep, 3.12 metres maximum height, 2.85 metres high…
P/5143/18/PRIOR
2018 Approved
60 Adderley Road, Harrow, HA3 7HT
Single storey rear extension: 6 metres deep 3.12 Metres maximum height 2.85 Metres high t…
P/4385/18/PRIOR
2018 Approved
39 Adderley Road, Harrow, HA3 7HS
Single and two storey rear extension rear dormer three rooflights in front roofslope to n…
P/3592/18
2016 Approved
46 Adderley Road, Harrow, HA3 7HT
Single storey rear extension: extending 6 metres beyond the original rear wall 2.96 Metre…
P/4524/16
2016 Approved
46 Adderley Road, Harrow, HA3 7HT
Single storey rear extension: extending 6 metres beyond the original rear wall 2.96 Metre…
P/2735/16
2016 Approved
29 Adderley Road, Harrow, HA3 7HS
Single storey rear extension: extending 5 metres beyond the original rear wall 3.5 Metres…
P/1543/16
2016 Approved
4 Adderley Road, Harrow, HA3 7HT
Single storey rear extension: extending 6 metres beyond the original rear wall 4 metres m…
P/0283/16
2016 Approved
2 Adderley Road, Harrow, HA3 7HT
Single storey rear extension: extending 6 metres beyond the original rear wall 3.3 Metres…
P/0207/16
Harrow
Planning Authority Score
4.9/10
Below average
#153 of 296 councils
Relevant to this application:
Change of use

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