12 Northumberland Road, North Harrow, Harrow, HA2 7RD Data via plota.co.uk

Pending PL/2632/26
Extensions & alterations
Council
Harrow 4.9/10
Date received
week of 5 Oct 2026
Postcode
HA2 7RD

Description

Single storey rear extension (Demoltion of rear conservatory and wall to rear) Data via plota.co.uk

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Last checked

Decision outlook

Plota predicts a decision around 30 Nov 2026, from Harrow's recent extensions.

Day 4 of the 56-day target. Harrow usually decides extensions by day 56.

Day 452 days to the 56-day target
84%decided within 8 weeks
78%approved
1,726decided in the last year

Plota live figures for extensions decided by Harrow in the last twelve months, from validation. Harrow decision record →

Site constraints 5

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 ↗
Habitat network: Network Enhancement Zone 2
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
Also on the record
Inside the Harrow built-up area; Public transport access: PTAL 4 (good), TfL 2023, for the 100 m square; Town centre about 89 m away: North Harrow.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 7 October 2026. The pin for this application is the centre of its postcode rather than the building, so distances to nearby designations are measured from the postcode and can be out by the width of the postcode area. Historic England, the Environment Agency, Natural England, Transport for London (public transport access levels, Powered by TfL Open Data, OGL v3.0, contains OS data © Crown copyright and database right 2025) 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.

Sales history 1

Last sold for £275,000 in February 2004. Semi-detached house, freehold.

13 February 2004£275,000

Sale prices from HM Land Registry's price paid record, matched to this application by its address.

Building

Floor area98 m² (1,055 sq ft)
Energy ratingD (59 out of 100), could reach B
PropertySemi-detached house, 5 habitable rooms
Built1930 to 1949
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in November 2015, the latest held for this property, matched to this application by its address. The building may have changed since. View the certificate

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Other new applications on this street

26 Jun 2026Approved

8 Northumberland Road, North Harrow, Harrow, HA2 7RD

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

PL/1899/26
9 Apr 2026Approved

139 Northumberland Road, North Harrow, Harrow, HA2 7RB

Single storey rear extension; alterations and extension to roof to form end gabl...

PL/0955/26

Nearby new applications

29 Sept 2026Pending

51 Westmorland Road, Harrow, HA1 4PL

Conversion of dwelling into three flats (1 x 3 beds and 2 x 1 Person Studio); si...

PL/2573/26
8 Sept 2026Pending

80 Elm Drive, North Harrow, Harrow, HA2 7BY

Single storey front extension incorporating front porch; conversion of garage to...

PL/2379/26
28 Aug 2026Pending

184 The Ridgeway, North Harrow, Harrow, HA2 7DD

Single storey front to side extension; Alterations to porch roof (Demolition of ...

PL/2300/26
12 Aug 2026Approved

Salaam Centre Station Road, Harrow , HA2 6AE

Non-Material amendment to planning permission P/2762/17 dated 08/08/2018 to chan...

PL/2154/26
11 Aug 2026Refused

51 The Gardens, West Harrow, Harrow

Certificate of Lawful Proposed Development: Single storey detached outbuilding a...

PL/2149/26
26 Jun 2026Approved

8 Northumberland Road, North Harrow, Harrow, HA2 7RD

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

PL/1899/26

Historical activity at this location

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

Within ~100m

Nearby activity

2025 Approved
28 Northumberland Road, North Harrow, Harrow, HA2 7RD
Conversion of garage into habitable room, Alterations to roof of porch and front extensio…
PL/1037/25
2024 Approved
2 Lancaster Road, North Harrow, Harrow, HA2 7NL
Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 2.85 metre…
PL/2286/24
2024 Approved
20 Northumberland Road, North Harrow, Harrow, HA2 7RD
Single storey rear extension: 6.00 metres deep, 3.90 metres maximum height and 3.00 metre…
PL/0788/24
2022 Withdrawn
28 Lancaster Road, North Harrow, Harrow, HA2 7NL
Single storey front extension incorporating porch; single and two storey side extension…
P/0353/22
2021 Approved
26 Lancaster Road, North Harrow, Harrow, HA2 7NL
Single storey rear extension: 6.00 metres deep, 4.00 metres maximum height and 3.00 metre…
P/5026/21/PRIOR
2021 Approved
28 Lancaster Road, North Harrow, Harrow, HA2 7NL
Single storey front extension incorporating porch; single and two storey side extension…
P/4414/21
2021 Approved
2 Northumberland Road, North Harrow, Harrow,
Single storey outbuilding in rear garden (demolition of detached garage)
P/2907/21
2021 Approved
32 Lancaster Road, North Harrow, Harrow, HA2 7NL
Single storey rear extension (demolition of conservatory)
P/2256/21
2021 Approved
32 Lancaster Road, North Harrow, Harrow, HA2 7NL
Single storey rear extension (demolition of conservatory)
P/0449/21
2020 Withdrawn
Flat 1, 2 Northumberland Road, North Harrow, Harrow, HA2 7RD
Single storey annexe in rear garden (demolition of detached garage)
P/2808/20
2019 Approved
10 Northumberland Road, North Harrow, Harrow, HA2 7RD
Single Storey Rear Extension: 6.0 metres deep, 3.96 metres maximum height, 3.00 metres hi…
P/5264/19/PRIOR
2019 Approved
22 Lancaster Road, North Harrow, Harrow, HA2 7NL
Single storey rear extension (demolition of conservatory)
P/4187/19
2019 Approved
27 Lancaster Road, North Harrow, Harrow, HA2 7NN
Single storey front extension incorporating front porch; single storey rear extension; ex…
P/3532/19
2019 Approved
39 Lancaster Road, North Harrow, Harrow, HA2 7NN
Single and two storey side to rear extension; single storey rear extension; rear dormer…
P/0445/19
2018 Refused
39 Lancaster Road, North Harrow, Harrow, HA2 7NN
Single and two storey side to rear extension; single storey rear extension; rear dormer…
P/4927/18
2018 Approved
6 Northumberland Road, Harrow, HA2 7RD
)Single storey rear extension: extending 6 metres beyond the original rear wall 3 metres…
P/2493/18/PRIOR
2017 Approved
43 Lancaster Road, Harrow, HA2 7NN
Single storey front extension single storey side to rear extension (additional plans rece…
P/4994/17
2017 Approved
43 Lancaster Road, Harrow, HA2 7NN
Alterations to roof to form end gables; rear dormer; three rooflights in front roofslope…
P/4962/17
2017 Approved
23 Lancaster Road, Harrow, HA2 7NN
Single storey front to side extension; front porch (demolition of garage)
P/3551/17
2017 Approved
4 Lancaster Road, Harrow, HA2 7NL
Single storey rear extension: extending 6 metres beyond the original rear wall 3.15 Metre…
P/3761/17/PRIOR
2017 Approved
1 Lancaster Road, Harrow, HA2 7NN
Insertion of window to first floor side elevation (retrospective)
P/1422/17
2017 Approved
36 Lancaster Road, Harrow, HA2 7NL
Single storey side extension; single storey rear extension (demolition of garage and cons…
P/0515/17
2017 Approved
38 Lancaster Road, Harrow, HA2 7NL
Single and two storey side extension (demolition of garage)
P/0155/17
2016 Approved
4 Lancaster Road, Harrow, HA2 7NL
Single storey rear extension: extending 5 metres beyond the original rear wall 3 metres m…
P/4936/16
2025
19 Lancaster Road, North Harrow, Harrow, HA2 7NN
Certificate of Lawful Development (Proposed): Front porch; alterations and extension to r…
PL/2734/25
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

Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.