1 Ashdene, Pinner, Harrow, HA5 3PD

Pending PL/0778/26 - Certificate of Lawful Development Proposed
Extensions & alterations
Council
Harrow 5.4/10
Date received
23 Mar 2026
Postcode
HA5 3PD
Type
Certificate of Lawful Development Proposed

Description

Certificate of Lawful Proposed Development: Side  porch; Single story rear extension; Replacement windows in first floor side and rear elevations

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Historical activity at this location

26 previous applications on record - archival context, not part of the live application.

This property

Previous applications at this address

2021 Refused
Two storey side extension; rear dormer; installation of two rooflights in the front roofs…
P/1943/21
Within ~100m

Nearby activity

2025
11 Cuckoo Hill Drive, Pinner, Harrow, HA5 3PG
Single storey front , side and rear extension; external alterations (demolition of garage…
PL/2450/25
2025
35 Cuckoo Hill Drive, Pinner, Harrow, HA5 3PG
Relocation of main entrance to front elevation; front porch; conversion of garage to habi…
PL/2061/25
2025 Approved
21 Cuckoo Hill Drive, Pinner, Harrow, HA5 3PG
Single and two storey rear extension; alterations to roof; alterations and extension to r…
PL/0621/25
2024 Approved
35 Cuckoo Hill Drive, Pinner, Harrow, HA5 3PG
Relocation of main entrance to front elevation; front porch; conversion of garage to habi…
PL/1350/24
2024 Approved
60 High View, Pinner, Harrow, HA5 3PB
Installation of 0.9m high electronic steel sliding vehicle access gate with four 1m high…
PL/0672/24
2024 Approved
1 Cuckoo Hill Drive, Pinner, Harrow, HA5 3PG
TPO No.392 Cuckoo Hill Drive (No.2) Pinner T17 (T3) Lime (rear garden of 5 Ashdene): Redu…
PL/0253/24
2023 Approved
60 High View, Pinner, Harrow, HA5 3PB
T1, T2 Horse Chestnut (front garden, boundary with High View): Crown Reduce by removing a…
P/2160/23
2023 Refused
60 High View, Pinner, Harrow, HA5 3PB
Installation of 0.9m high electronic steel sliding vehicle access gate with four 1m high…
P/0076/23
2021 Approved
1 Ashdene, Pinner, HA5 3PD
Two storey side extension; rear dormer; installation of two rooflights in the front roofs…
P/1943/21/5949
2021 Approved
13 Cuckoo Hill Drive, Pinner, Harrow, HA5 3PG
Retention of small bay window in front of existing side extension.(Retrospective applicat…
P/4450/21
2021 Approved
3 Cuckoo Hill Drive, Pinner, Harrow, HA5 3PG
Alterations to roof; rear dormer; three rooflights in crown roof; single storey side exte…
P/2502/21
2020 Approved
13 Cuckoo Hill Drive, Pinner, Harrow, HA5 3PG
Single storey front extension; single storey side to rear extension; conversion of garage…
P/3078/20
2020 Approved
41 Cuckoo Hill Drive, Pinner, HA5 3PG
Proposed side and rear extension on 1st floor
P/2574/20/PREAPP
2020 Approved
41 Cuckoo Hill Drive, Pinner, Harrow, HA5 3PG
Single storey rear extension; conversion of garage to habitable room; external alterations
P/0026/20
2019 Approved
19 Cuckoo Hill Drive, Pinner, HA5 3PG
First floor front extension with balcony and glass balustrade first floor side to rear ex…
P/5160/19
2019 Refused
41 Cuckoo Hill Drive, Pinner, Harrow, HA5 3PG
Single storey rear extension; first floor rear extension; conversion of garage to study w…
P/4590/19
2019 Approved
19 Cuckoo Hill Drive, Pinner, Harrow, HA5 3PG
First floor front and side extension; external alterations
P/3925/19
2019 Withdrawn
19 Cuckoo Hill Drive, Pinner, Harrow, HA5 3PG
Invalid
P/4746/19
2019 Refused
41 Cuckoo Hill Drive, Pinner, Harrow, HA5 3PG
Single storey rear extension; first floor side to rear extension; conversion of garage to…
P/2722/19
2018 Approved
19 Cuckoo Hill Drive, Pinner, HA5 3PG
Alterations and extension to roof; rear dormer; rooflights in side and rear roofslopes
P/3714/18
2017 Approved
41 Cuckoo Hill Drive, Pinner, HA5 3PG
Alterations to roof to form end gables; rear dormer with juliette balcony; two rooflights…
P/5074/17
2017 Approved
17 Cuckoo Hill Drive, Pinner, HA5 3PG
Alterations to roof to form two end gables; rear dormer; two rooflights in front roofslop…
P/1913/17
2016 Approved
29 Cuckoo Hill Drive, Pinner, HA5 3PG
Single storey front in-fill extension with front dormer at first floor
P/4375/16
2016 Approved
15 Cuckoo Hill Drive, Pinner, HA5 3PG
T26 monterey pine (rear garden rear boundary): reduce back tips to lessen weight on limbs
P/4153/16
2016 Approved
31 Cuckoo Hill Drive, Pinner, HA5 3PG
Single storey front infill extension
P/3218/16
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