70 Birchmead Avenue, Pinner, Harrow, HA5 2BH Data via plota.co.uk

Pending PL/2243/26 - Certificate of Lawful Development Proposed
Extensions & alterations
Council
Harrow 4.9/10
Date received
27 Aug 2026
Postcode
HA5 2BH
Type
Certificate of Lawful Development Proposed

Description

Certificate Of Lawful Development (Proposed): Rear dormer; three rooflights in front roof slope Data via plota.co.uk

Get alerts nearby Council site ↗

Last checked

Decision outlook

Plota predicts a decision between 11 Oct 2026 and 19 Oct 2026, from recent lawful development certificates across the UK.

Day 18 of the 56-day target. Councils usually decide lawful development certificates by day 50.

Day 1838 days to the 56-day target
84%decided within 8 weeks
85%approved
19,862decided in the last year

Plota live figures for lawful development certificates decided across the UK in the last twelve months, from validation; too few recent lawful development certificates in Harrow to go on. Harrow decision record →

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

1 Jul 2026Pending

18 Birchmead Avenue, Pinner, Harrow, HA5 2BG

Single storey side to rear extension; single and two storey rear extension; alte...

PL/1703/26

Nearby new applications

11 Sept 2026Pending

7 Sweetmans Avenue, Pinner, Harrow, HA5 3NS

Certificate Of Lawful Development (Proposed): Alterations and extension to roof ...

PL/2156/26
13 Aug 2026Pending

23 DAYMER GARDENS EASTCOTE PINNER

Variation of Condition 2 (approved plans) of planning permission ref. 45997/APP/...

45997/APP/2026/2024
11 Aug 2026Pending

52 Westbury Lodge Close, Pinner, Harrow, HA5 3FG

Single storey rear extension; conversion of garage to habitable room with instal...

PL/2127/26
8 Aug 2026Approved

54 High View, Pinner, Harrow, HA5 3PB

TPO No. 392 Cuckoo Hill Drive (No.2) Pinner T8 Scots pine (rear garden): Extensi...

PL/1493/26
28 Jul 2026Refused

22 Cuckoo Hill Drive, Pinner, Harrow, HA5 3PF

Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 3...

PL/1982/26
23 Jul 2026Approved

21 West Way, Pinner, Harrow, HA5 3NX

TPO 669 West Way (No.3) Pinner T31 Cypress (rear): Reduce up to 3m in height and...

PL/1088/26

Historical activity at this location

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

Within ~100m

Nearby activity

2023 Refused
76 Birchmead Avenue, Pinner, Harrow, HA5 2BH
Part conversion of detached garage /outbuilding into 'Granny' annexe for use incidental t…
P/2208/23
2023
76 Birchmead Avenue, Pinner, HA5 2BH
Conversion of detached garage/outbuilding into self contained 2 bed residential unit; ext…
P/3964/22/6220
2023
76 Birchmead Avenue, Pinner, HA5 2BH
Conversion of detached garage /outbuilding into granny annexe for use incidental to main…
P/0453/23/6221
2023 Refused
76 Birchmead Avenue, Pinner, Harrow, HA5 2BH
Conversion of detached garage /outbuilding into 'Granny' annexe for use incidental to mai…
P/0453/23
2022 Refused
76 Birchmead Avenue, Pinner, Harrow, HA5 2BH
Conversion of detached garage/outbuilding into self contained 2 bed residential unit; ext…
P/3964/22
2022 Refused
76 Birchmead Avenue, Pinner, Harrow, HA5 2BH
Conversion of detached garage/outbuilding into self contained 2 bed residential unit; ext…
P/3058/22
2022 Approved
78 Birchmead Avenue, Pinner, HA5 2BH
First floor side extension; external alterations
P/4815/21/6017
2021 Refused
78 Birchmead Avenue, Pinner, Harrow, HA5 2BH
First floor side extension; external alterations
P/4815/21
2021 Approved
76 Birchmead Avenue, Pinner, Harrow, HA5 2BH
Single storey outbuilding/double garage in rear garden (retrospective)
P/3009/21
2021 Approved
41 Birchmead Avenue, Pinner, Harrow, HA5 2BQ
Single storey front extension incoporating front porch; first floor front extension; sing…
P/0902/21
2021 Approved
76 Birchmead Avenue, Pinner, Harrow, HA5 2BH
Outbuilding at rear for use as double garage / gym / leisure / storage (demolition of gar…
P/0110/21
2020 Approved
76 Birchmead Avenue, Pinner, HA5 2BH
Part single part two storey rear extension; single storey side extension and roof alterat…
P/2327/20/5820
2020 Approved
41 Birchmead Avenue, Pinner, Harrow, HA5 2BQ
Single storey rear extension: 5.00 metres deep, 3.40 metres maximum height and 3.00 metre…
P/0018/21/PRIOR
2020 Refused
41 Birchmead Avenue, Pinner, Harrow, HA5 2BQ
Single Storey Rear Extension: 5 metres deep, 3.4 metres maximum height, 3 metres high to…
P/4395/20/PRIOR
2020 Approved
76 Birchmead Avenue, Pinner, HA5 2BH
Outbuilding at rear for use as double garage / gym / leisure / storage
P/0448/20/5769
2020 Refused
76 Birchmead Avenue, Pinner, Harrow, HA5 2BH
Part single, part two storey rear extension; Single storey side Extension and roof altera…
P/2327/20
2020 Approved
57 Birchmead Avenue, Pinner, Harrow, HA5 2BQ
Single storey side to rear extension; extension of patio at rear; external alterations
P/2085/20
2020 Approved
76 Birchmead Avenue, Pinner, HA5 2BH
Outbuilding at rear for use as double garage / gym / leisure / storage
P/0448/20
2019 Approved
38 Birchmead Avenue, Pinner, Harrow, HA5 2BH
Single and two storey front extension; re-location of front entrance; conversion of garag…
P/3788/19
2019 Decided
76 Birchmead Avenue, Pinner, HA5 2BH
Single storey front extension; two storey side to rear extension; detached garage at side…
P/1350/19/5573
2017 Approved
46 Birchmead Avenue, Pinner, HA5 2BH
Conversion of garage to room with installation of window to front; external alterations
P/1765/17
2016 Approved
51 Birchmead Avenue, Pinner, HA5 2BQ
Extension and conversion of detached garage to granny annexe for use ancillary to main dw…
P/5228/16
2016 Approved
82 Birchmead Avenue, Pinner, HA5 2BH
T34 hornbeam (front garden side boundary): reduce crown 15-20%. .T30 maple (front garden…
P/5660/16
2016 Approved
51 Birchmead Avenue, Pinner, HA5 2BQ
Extension and conversion of detached garage to granny annexe for use ancillary to main dw…
P/3021/16
2016 Approved
54 Birchmead Avenue, Pinner, HA5 2BH
Single storey front extension incorporating front porch
P/1911/16
Harrow
Planning Authority Score
4.9/10
Below average
#153 of 296 councils
Relevant to this application:
Householder decisions

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