21b South Hill Avenue, Harrow, HA2 0NN

Pending PL/0473/26
Extensions & alterations
Council
Harrow 5.4/10
Date received
23 Feb 2026
Postcode
HA2 0NN

Description

Single storey front extension; replacement of existing flat roof with a pitched roof; external alterations; access, parking and landscaping

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Other new applications on this street

21B South Hill Avenue, Harrow, HA2 0NN

Single storey front extension; replacement of existing flat roof with a pitched ...

PL/1435/26 - 5 Jun 2026

Nearby new applications

21B South Hill Avenue, Harrow, HA2 0NN

Single storey front extension; replacement of existing flat roof with a pitched ...

PL/1435/26 - 5 Jun 2026

Orley Farm School Trust, ORLEY FARM SCHOOL South Hill Avenue, South Harrow, Harrow, HA1 3NU

Landscaping to the school grounds and playground facilities including installati...

PL/1346/26 - 30 May 2026

Flat 111, BOVIS HOUSE, 142 Northolt Road, South Harrow, Harrow, HA2 0GY

Certificate of Lawful Existing Development: Establish use as studio flat (Use Cl...

PL/1278/26 - 27 May 2026

63 Cavendish Avenue, Sudbury, Harrow, HA1 3RF

Certificate of Lawful Existing Development: Use of the dwelling as a HMO (C4) fo...

PL/1061/26 - 23 May 2026

Value Windows Ltd, UNIT 2 Brember Road, South Harrow, Harrow, HA2 8AX

Change of use from Class B1 to Mixed use MOT and Vehicle Repair (Use Class Sui G...

PL/1237/26 - 21 May 2026

117 Kingsley Road, South Harrow, Harrow, HA2 8LF

First floor rear infill extension; external alterations

PL/1324/26 - 19 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
15 South Hill Avenue, South Harrow, Harrow, HA2 0NN
Conversion of existing bungalow into two semi-detached dwellings (2 x 3 beds); single sto…
PL/1156/25
2024 Approved
Eagle House, 67 Brooke Avenue, South Harrow, Harrow, HA2 0ND
Conversion of garage into habitable room; first floor side extension; external alterations
PL/0211/24
2023 Approved
15 South Hill Avenue, South Harrow, Harrow, HA2 0NN
Redevelopment to provide a pair of single storey semi-detached dwellings with accommodati…
PL/0613/23
2023 Approved
4 Sackville Close, South Harrow, Harrow, HA2 0NJ
Alterations to roof; two rear dormers; three rooflights in front roofslope; external alte…
PL/0329/23
2023 Withdrawn
23 South Hill Avenue, South Harrow, Harrow, HA2 0NN
Rear dormer and insertion of one rooflight in rear roofslope and four rooflights in front…
P/2712/23
2023 Refused
15 South Hill Avenue, South Harrow, Harrow, HA2 0NN
Redevelopment to provide pair of two storey semi-detached (2 X 3 bed) dwellings; proposed…
P/1144/23
2021 Approved
2 Sackville Close, South Harrow, Harrow, HA2 0NJ
Conversion of ground floor flat into two flats (1 X studio and 1 X 2 bed); Single storey…
P/2870/21
2021 Approved
72 South Hill Avenue, South Harrow, Harrow, HA2 0NH
Single storey rear extension
P/2765/21
2021 Approved
5 Sackville Close, South Harrow, Harrow, HA2 0NJ
T10 Oak (Side Of House): Reduce All Round By Approximately 2M To Reduce Shading & Give Cl…
P/1300/21
2021 Refused
2 Sackville Close, South Harrow, Harrow, HA2 0NJ
Conversion of ground floor flat into two flats (1 X studio and 1 X 2 bed); single storey…
P/0997/21
2020 Approved
66 South Hill Avenue, South Harrow, Harrow, HA2 0NH
Single storey front, side and rear extension incorporating front porch; re-location of ma…
P/2594/20
2020 Approved
2 Sackville Close, Harrow, HA2 0NJ
Convert ground floor flat into a stodio forr granmother and 2no: bedroom flat
P/2194/20/PREAPP
2020 Approved
17 Kingsley Road, South Harrow, Harrow,
Details pursuant to Conditions 3 (Levels), 4 (Materials), 5 (Drainage), 8 (Cycle storage)…
P/0031/20
2019 Approved
17 Kingsley Road, South Harrow, Harrow,
Redevelopment to provide a three storey building containing 4 flats comprising 2 X 1 Bed…
P/3226/19
2019 Approved
4 Sackville Close, South Harrow, Harrow, HA2 0NJ
Two rear dormers; installation of four rooflights in front roofslope
P/3148/19
2019 Approved
4 Sackville Close, South Harrow, Harrow, HA2 0NJ
Single storey side extension; single storey rear extension; conversion of garage to bedro…
P/1921/19
2019 Withdrawn
17 Kingsley Road, South Harrow, Harrow,
Redevelopment to provide a three storey building containing 4 flats comprising 2 X 2 Bed…
P/0442/19
2018 Refused
17 Kingsley Road, South Harrow, Harrow,
Details pursuant to Condition 4 (materials), Condition 5 (disposal of surface water, surf…
P/5053/18
2018 Approved
2 Sackville Close, Harrow, HA2 0NJ
Two storey rear extension and rear dormer installation of rooflights to both side roofslo…
P/2568/18
2018 Withdrawn
17 Kingsley Road, South Harrow, Harrow,
Details pursuant to Conditions 4 (Materials), 5 (Surface water) and 10 (Surface water) at…
P/0836/18
2017 Approved
5 Kingsley Road, South Harrow, Harrow, HA2 8LD
Single storey rear extension to ground floor flat (amended plans)
P/5473/17
2017 Approved
3 Sackville Close, Harrow, HA2 0NJ
Conservatory at rear
P/1663/17
2016 Approved
3 Sackville Close, Harrow, HA2 0NJ
Front porch; demolition of existing conservatory and replacement with a single storey rea…
P/4899/16
2016 Withdrawn
5a Kingsley Road, South Harrow, Harrow, HA2 8LD
Rear dormer to create habitable roofspace for use by first floor flat; rooflights in fron…
P/4471/16
2016 Approved
5A Kingsley Road, South Harrow, Harrow, HA2 8LD
Rear dormer and insertion of two rooflights in front roofslope
P/0081/16
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