12 Greystoke Avenue, North Harrow, Pinner, Harrow, HA5 5SL

Pending PL/0655/26 - Householder
DemolitionExtensions & alterations
Council
Harrow 5.4/10
Date received
30 Apr 2026
Postcode
HA5 5SL
Type
Householder

Description

Single storey front extension incorporating porch; single storey rear; single storey part side extension; garage conversion to habitable room; installation of Juliette balcony to rear dormer; external alterations (demolition of side extension and shed)

Get alerts nearby Council site ↗

Other new applications on this street

51 Greystoke Avenue, North Harrow, Pinner, Harrow, HA5 5SN

Single storey rear extension; external alterations

PL/1165/26 - 23 May 2026

51 Greystoke Avenue, North Harrow, Pinner, Harrow, HA5 5SN

Certificate of Lawful Development (Proposed): Alterations to roof; rear dormer; ...

PL/1167/26 - 5 May 2026

Nearby new applications

26 Greenfield Way, North Harrow, Harrow, HA2 6HU

Single Storey side to rear extension; external alterations (demolition of detach...

PL/1272/26 - 23 May 2026

51 Greystoke Avenue, North Harrow, Pinner, Harrow, HA5 5SN

Single storey rear extension; external alterations

PL/1165/26 - 23 May 2026

51 Greystoke Avenue, North Harrow, Pinner, Harrow, HA5 5SN

Certificate of Lawful Development (Proposed): Alterations to roof; rear dormer; ...

PL/1167/26 - 5 May 2026

234 Headstone Lane, Harrow, HA2 6LY

Single story rear extension

PL/0542/26 - 5 May 2026

56 Headstone Lane, Harrow, HA2 6HH

Certificate of Lawful Proposed Development: Alterations to roof to form end gabl...

PL/1142/26 - 30 Apr 2026

56 Headstone Lane, Harrow, HA2 6HH

Single storey rear extension: 6.00 metres deep, 3.15 metres maximum height and 3...

PL/1127/26 - 30 Apr 2026

Historical activity at this location

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

Within ~100m

Nearby activity

2025
28 Birkdale Avenue, North Harrow, Pinner, Harrow, HA5 5SQ
Single storey rear extension: 6.00 metres deep, 3.60 metres maximum height and 2.90 metre…
PL/0620/25
2024 Approved
40 Greystoke Avenue, North Harrow, Pinner, Harrow, HA5 5SL
Single and two storey rear extension
PL/2491/24
2024 Approved
22 Birkdale Avenue, North Harrow, Pinner, Harrow, HA5 5SQ
Single storey rear extension: 4.00 metres deep, 3.00 metres maximum height and 3.00 metre…
PL/1888/24
2024 Approved
4 Greystoke Avenue, North Harrow, Pinner, Harrow, HA5 5SL
Single storey side to rear extension; conversion of garage into habitable room; external…
PL/0186/24
2023 Refused
10 Greystoke Avenue, North Harrow, Pinner, Harrow, HA5 5SL
Alterations and extension to raise roof height of front gable; external alterations
PL/0078/23
2023
4 Greystoke Avenue, North Harrow, Pinner, Harrow, HA5 5SL
Single storey side to rear extension; alterations to rear dormer; alterations to garage r…
P/2635/23
2023 Approved
70 Greystoke Avenue, North Harrow, Pinner, Harrow, HA5 5SL
Alterations to roof to form end gable and rear dormer; installation of three rooflights i…
P/2128/23
2023 Approved
62 Greystoke Avenue, North Harrow, Pinner, Harrow, HA5 5SL
Single storey side to rear extension
P/1086/23
2021 Approved
60 Greystoke Avenue, North Harrow, Pinner, Harrow, HA5 5SL
Single storey side and rear extension. (demolition of existing garage and rear conservato…
P/4442/21
2021 Approved
18 Greystoke Avenue, Pinner, HA5 5SL
Single and two storey side extension; rear dormer with juliette balcony; single storey re…
P/1232/21/5940
2021 Approved
18 Greystoke Avenue, North Harrow, Pinner, Harrow, HA5 5SL
Alterations to form hipped roof; reduction of rear dormer width; relocation of rooflight…
P/2401/21
2021 Refused
18 Greystoke Avenue, North Harrow, Pinner, Harrow, HA5 5SL
Single and two storey side extension; Rear dormer with juliette balcony; Single storey re…
P/1232/21
2021 Approved
66 Greystoke Avenue, North Harrow, Pinner, Harrow, HA5 5SL
Single Storey Rear Extension: 4.00 metres deep, 3.85 metres maximum height, 3.00 metres h…
P/1215/21/PRIOR
2020 Approved
18 Greystoke Avenue, North Harrow, Pinner, Harrow, HA5 5SL
Single and two storey side to rear extension; installtion of two Juliette balconies to re…
P/3045/20
2020 Refused
63 Greystoke Avenue, North Harrow, Pinner, Harrow, HA5 5SN
Two storey side extension; single storey rear extension; rear dormer; external alteration…
P/2021/20
2020 Approved
62 Greystoke Avenue, Pinner, HA5 5SL
Replacement of roof covering
IN/00862/2020
2020 Approved
18 Greystoke Avenue, North Harrow, Pinner, Harrow, HA5 5SL
Single and two storey side extension; alterations to roof to form end gable; external alt…
P/1781/20
2020 Approved
40 Greystoke Avenue, North Harrow, Pinner, Harrow, HA5 5SL
First floor side extension; Conversion of garage into habitable room with alterations to…
P/2044/20
2020 Approved
18 Greystoke Avenue, North Harrow, Pinner, Harrow, HA5 5SL
Single Storey Rear Extension: 4.60 metres deep, 2.80 metres maximum height, 2.70 metres h…
P/1786/20/PRIOR
2020 Refused
18 Greystoke Avenue, North Harrow, Pinner, Harrow, HA5 5SL
Single Storey Rear Extension: 6.0 metres deep, 2.803 metres maximum height, 2.696 metres…
P/1689/20/PRIOR
2016 Approved
36 Birkdale Avenue, Pinner, HA5 5SQ
Single storey rear extension: extending 6 metres beyond the original rear wall 3 metres m…
P/3528/16
2016 Approved
34 Birkdale Avenue, Pinner, HA5 5SQ
Single storey rear extension: extending 6 metres beyond the original rear wall 3 metres m…
P/3145/16
2016 Approved
53 Greystoke Avenue, Pinner, HA5 5SN
Single storey rear extension
P/1395/16
2016 Approved
22 Birkdale Avenue, Pinner, HA5 5SQ
Alterations to roof to form end gable to create habitable roofspace; rear dormer with jul…
P/1418/16
2016
53 Greystoke Avenue, Pinner, HA5 5SN
Single storey rear extension and first floor front extension
P/5649/15/4948
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