74 Blenheim Road, West Harrow, Harrow, HA2 7AF Data via plota.co.uk

Approved PL/1909/26 - Certificate of Lawful Development Proposed
Extensions & alterations
Council
Harrow 4.9/10
Date received
21 Jul 2026
Postcode
HA2 7AF
Type
Certificate of Lawful Development Proposed

Description

Certificate of Lawful Proposed Development: Alterations to roof to form end gable and rear dormer; Installation of two roof lights in front roof slope and window in gable end Data via plota.co.uk

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Last checked

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

23 May 2026Approved

87 Blenheim Road, West Harrow, Harrow, HA2 7AQ

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

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Historical activity at this location

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

Within ~100m

Nearby activity

2024 Approved
28 North Avenue, North Harrow, Harrow, HA2 7AE
Single storey rear extension: 6.00 metres deep, 3.14 metres maximum height and 2.99 metre…
PL/2483/24
2022 Approved
3 Grosvenor Avenue, North Harrow, Harrow, HA2 7AW
Single storey rear extension: 3.30 metres deep, 3.10 metres maximum height and 3.00 metre…
P/3548/22/PRIOR
2022 Approved
92 Blenheim Road, West Harrow, Harrow, HA2 7AF
Single storey rear extension; external alterations (demolition of rear extension)
P/3166/22
2022 Approved
7 North Avenue, North Harrow, Harrow, HA2 7AE
Single and two storey side to rear and single storey rear extension (Demolition of single…
P/2616/22
2022 Approved
3 Grosvenor Avenue, North Harrow, Harrow, HA2 7AW
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Alterations to roof; rear dormer with Julie…
P/2258/22
2021 Approved
113 Blenheim Road, West Harrow, Harrow, HA2 7AG
Single storey rear extension to enlarge existing one bedroom ground floor flat
P/0084/21
2020 Approved
92 Blenheim Road, West Harrow, Harrow, HA2 7AF
Single storey rear extension (demolition of rear extension)
P/4226/20
2020 Approved
109 Blenheim Road, West Harrow, Harrow, HA2 7AG
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Alterations to roof to form end gable and r…
P/2856/20
2018 Approved
28 North Avenue, Harrow, HA2 7AE
Change of use of dwellinghouse (use class c3) to hotel (c1) (retrospective)
P/1204/18
2019 Approved
14 North Avenue, North Harrow, Harrow, HA2 7AE
Single Storey Rear Extension: 5 metres deep, 3.30 metres maximum height, 3 metres high to…
P/0878/19/PRIOR
2019 Approved
4 Dorchester Avenue, North Harrow, Harrow, HA2 7AZ
Details persuant to conditions 3 (materials), 4 (surface water attenuation) and 5 (dispos…
P/0453/19
2018 Approved
4 Dorchester Avenue, Harrow, HA2 7AZ
Development to provide a two storey detached dwellinghouse with habitable roofspace; park…
P/1575/18
2018 Approved
18 North Avenue, North Harrow, Harrow, HA2 7AE
Single storey rear extension
P/0524/18
2017 Approved
28 North Avenue, Harrow, HA2 7AE
Certificate of lawful development (proposed): use of dwellinghouse for short term rental…
P/4083/17
2016 Approved
80 Blenheim Road, Harrow, HA2 7AF
Single storey rear extension: extending 6 metres beyond the original rear wall 4 metres m…
P/4750/16
2016 Approved
8 Dorchester Avenue, Harrow, HA2 7AZ
Single storey front and side extension incorporating front porch
P/4081/16
2016 Approved
8 Dorchester Avenue, Harrow, HA2 7AZ
Certificate of lawful development (proposed): alterations to roof to form end gable with…
P/4082/16
2016 Approved
80 Blenheim Road, Harrow, HA2 7AF
Single storey rear extension: extending 6 metres beyond the original rear wall 3 metres m…
P/1171/16
2016 Approved
80 Blenheim Road, Harrow, HA2 7AF
Single storey rear extension: extending 6 metres beyond the original rear wall 3 metres m…
P/0674/16
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