8 Blackwell Close, Harrow Weald, Harrow, HA3 6JY Data via plota.co.uk

Pending PL/1694/26 - Householder
Extensions & alterations
Council
Harrow 5.4/10
Date received
26 Jun 2026
Postcode
HA3 6JY
Type
Householder

Description

Conversion of garage into habitable room; front porch; single storey rear extension; external alterations including installation of external staircase at rear Data via plota.co.uk

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Historical activity at this location

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

Within ~100m

Nearby activity

2024 Approved
4 Colmer Place, Harrow Weald, Harrow, HA3 6JW
Single storey side to rear extension; external alterations
PL/1339/24
2024 Approved
64 - 66 Boxtree Lane, Harrow Weald, Harrow, HA3 6JR
Conversion of detached dwelling into two semi-detached dwellings (1 X 4 bed and 1 X 2 bed)
PL/0247/24
2023 Refused
4 Colmer Place, Harrow Weald, Harrow, HA3 6JW
Single storey side extension to create (1 bed) bungalow; parking; bin and cycle stores
P/0187/23
2023 Approved
55 Boxtree Lane, Harrow Weald, Harrow, HA3 6JP
Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 3.00 metre…
P/0610/23/PRIOR
2022 Refused
4 Blackwell Close, Harrow Weald, Harrow, HA3 6JY
Conversion of dwelling into two flats (1 X 1 bed and 1 X 2 bed); single storey rear exten…
P/3179/22
2021 Approved
1 Colmer Place, Harrow Weald, Harrow, HA3 6JW
Conversion of single storey side element into studio flat; external alterations; separate…
P/1919/21
2021 Approved
6a Colmer Place, Harrow Weald, Harrow, HA3 6JW
Single storey rear extension to ground floor flat; external alterations
P/2358/21
2021 Approved
29 Boxtree Lane, Harrow Weald, Harrow, HA3 6JP
Single storey rear extension: 6.00 metres deep, 2.90 metres maximum height and 2.80 metre…
P/2288/21/PRIOR
2020 Approved
31 Boxtree Lane, Harrow Weald, Harrow, HA3 6JP
Single Storey Side Extension (Demolition Of Garage)
P/3516/20
2020 Approved
31 Boxtree Lane, Harrow Weald, Harrow, HA3 6JP
Single storey rear extension: 6.00 metres deep, 3.10 metres maximum height and 2.92 metre…
P/3457/20/PRIOR
2020 Approved
12 Colmer Place, Harrow Weald, Harrow, HA3 6JW
Single storey rear extension; rear dormer; front porch; hard and soft landscaping; single…
P/2456/20
2019 Approved
13 Colmer Place, Harrow Weald, Harrow, HA3 6JW
Single storey rear extension; rear dormer; installation of two rooflights in front roofsl…
P/0867/19
2019 Approved
5 Blackwell Close, Harrow Weald, Harrow, HA3 6JY
Single storey rear extension; Alterations to first floor balcony door (Retrospective)
P/0544/19
2017 Approved
1 Colmer Place, Harrow Weald, Harrow, HA3 6JW
Conversion of dwelling into three flats; first floor side extension; single storey rear e…
P/5660/17
2017 Approved
11 Colmer Place, Harrow, HA3 6JW
Single storey rear extension; rear dormer; two rooflights in front roofslope to create ha…
P/2484/17
2017 Approved
62 Boxtree Lane, Harrow Weald, Harrow, HA3 6JR
First floor rear extension
P/2494/17
2017 Approved
62 Boxtree Lane, Harrow Weald, Harrow, HA3 6JR
Single storey side and rear extension; alteration to roof of existing single storey side…
P/1323/17
2016 Approved
62 Boxtree Lane, Harrow Weald, Harrow, HA3 6JR
Single storey rear extension; first floor rear extension
P/5760/16
2016 Approved
5 Blackwell Close, Harrow, HA3 6JY
Single storey rear extension
P/5441/16
2016 Approved
62 Boxtree Lane, Harrow Weald, Harrow, HA3 6JR
Single storey side and rear extension with two storey extension over side to house intern…
P/3758/16
2016 Approved
5 Blackwell Close, Harrow, HA3 6JY
Single storey rear extension
P/2847/16
2016 Approved
57 Boxtree Lane, Harrow Weald, Harrow, HA3 6JP
Single storey front extension incorporating front porch and two storey side extension
P/3131/16
2016 Approved
57 Boxtree Lane, Harrow Weald, Harrow, HA3 6JP
Single storey rear extension: extending 3.47 Metres beyond the original rear wall 2.95 Me…
P/3005/16
2016 Withdrawn
62 Boxtree Lane, Harrow Weald, Harrow, HA3 6JR
INVALID - Single storey side and rear extension with two storey extension over side to ho…
P/2127/16
2023 Refused
64 - 66 Boxtree Lane, Harrow Weald, Harrow, HA3 6JR
CERTIFICATE OF LAWFUL DEVELOPMENT(PROPOSED): Conversion of single dwelling into two dwell…
PL/0263/23
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