157 Walm Lane, London, NW2 3AY Data via plota.co.uk

Decided 24/3661
Council
Brent 5.7/10
Date received
23 Dec 2024
Date validated
16 Jan 2025
Postcode
NW2 3AY

Description

Erection of ground floor side and rear extension, alterations to fenestration and replacement of ... Data via plota.co.uk

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Last checked

Site constraints 6

Mapesbury conservation area
Demolition needs planning permission and permitted development is restricted.
The council must give weight to preserving or enhancing the area's character and appearance. Not every council has published its boundaries as open data.
Council document ↗
2 Article 4 directions
Article 4 for HMOs · Mapesbury. Named permitted development rights are withdrawn here.
An Article 4 direction withdraws particular permitted development rights, so work that would normally need no application needs one here. Not every council has published its directions.
Air quality management area: Brent 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 Brent built-up area; Public transport access: PTAL 4 (good), TfL 2023, for the 100 m square; Tree preservation order 29 m away: Walm Lane, Willesden, NW2.
Not affected
Outside flood zones 2 and 3 · Not green belt · No listed building at the site

Checked on 1 November 2026. 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.

Building

Floor area256 m² (2,756 sq ft)
Energy ratingE (52 out of 100), could reach C
PropertyDetached house, 9 habitable rooms
Built1900 to 1929
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in April 2024, 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

19 Oct 2026Pending

187A - F Walm Lane, London, NW2 3AY

Replacement of existing windows with double glazed timber sash and casement wind...

26/2316
20 Oct 2026Pending

134A Walm Lane, London, NW2 4RT

Proposed single-storey side-to-rear extension, removal of side door and infill w...

26/2667
19 Oct 2026Pending

Telecommunications Mast, Gerard Court, Walm Lane, London

Removal of 3x existing antennas and 1x existing equipment cabinet and the instal...

26/2389
12 Oct 2026Pending

Flat 2, 184A Walm Lane, London, NW2 3AX

Details pursuant to condition to 1(i)(replacement of the existing rooflights wit...

26/2592

Nearby new applications

30 Oct 2026Pending

83 St Gabriels Road, London, NW2 4DU

T1: Magnolia (4m): Crown reduce by 1m to keep trees at a size suitable for its l...

26/2775
30 Oct 2026Pending

Flat B 192 Fordwych Road London NW2 3NX

Erection of a hip-to-gable roof extension, including a full-width rear dormer ex...

2026/4782/P
29 Oct 2026Pending

29 Lichfield Road London NW2 2RN

Change of use from a single dwellinghouse (Use Class C3) to a 4 bed HMO (House i...

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28 Oct 2026Pending

137 Chatsworth Road, London, NW2 5QT

Conversion of dwellinghouse (Use Class C3) into a supported residential home for...

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28 Oct 2026Pending

39 Blenheim Gardens, London, NW2 4NR

Non material amendment (Amendment to rear roof and location of roof windows) of ...

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28 Oct 2026Pending

74 Shoot-up Hill London NW2 3XJ

Extension of lower ground floor to create 4no. flats

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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

2024 Approved
Proposed loft conversion to include 3x rear dormer windows, replacement roof covering and…
24/3662
Within ~100m

Nearby activity

2025 Approved
155 Walm Lane, London, NW2 3AY
T1 Pear (Pyrus communis) fell to ground level
25/2049
2025 Approved
190 Walm Lane, London, NW2 3BP
Installation of solar PV panels to outrigger roof slope to flats.
25/1895
2025 Approved
155 Walm Lane, London, NW2 3AY
T1 Common Pear - Crown Reduction - by up to 3 m T2 Box Maple reduce the lateral spread of…
25/1782
2025 Approved
169 Walm Lane, London, NW2 3AY
Proposed single-storey side extension and rear extension, alteration to roof of existing…
25/0529
2025 Approved
206 Walm Lane, London, NW2 3BP
T1 - Conifer - Fell to ground level
25/0785
2024 Approved
159A Walm Lane, London, NW2 3AY
Proposed replacement of existing rear single glazed timber windows with double glazed tim…
24/2946
2024 Approved
153A-E, Walm Lane, London, NW2 3AY
T1 Crack Willow: fell and treat to prevent regrowth.
24/0247
2023 Approved
200 Walm Lane, London, NW2 3BP
T1 ? Plum (Prunus) - fell and grind out stump to 350mm below ground level T2 ? Damson (Pr…
23/3173
2023 Approved
212A-D INC, Walm Lane, London, NW2 3BP
2m high Shrub to be removed, 1m from right corner of front projection.
23/2285
2023 Approved
167A Walm Lane, London, NW2 3AY
T1: Eucalyptus Tree - Reduce new growth by 50% T2: Yew Tree - Reduce crown by 1.5m T3: Mi…
23/0678
2022 Approved
204A-C, Walm Lane, London, NW2 3BP
Replacement of existing windows double glazed windows to three flats
22/3631
2022 Approved
210B Walm Lane, London, NW2 3BP
Proposed single storey rear garden outbuilding
22/1090
2022 Approved
194A-C Walm Lane, London, NW2 3BP
Replacement of existing roof coverings to block of flats.
22/3431
2022
153 Walm Lane, London, NW2 3AY
T1: Cypress x 3: Fell to ground level. T2: Crack Willow: Fell to ground level. T3: Leylan…
22/4237
2022 Approved
204A-E Walm Lane, London, NW2 3BP
Replacement of existing roof coverings and rooflights to block of flats
22/3436
2022 Withdrawn
204A-C Walm Lane, London, NW2 3BP
Replacement of all windows to block of flats
22/2330
2022 Approved
169 Walm Lane, London, NW2 3AY
? T1: Mature Acer: Approximately 5.00m: Left hand boundary. Thin crown density by 20%. Re…
22/2012
2021 Approved
194 Walm Lane, London, NW2 3BP
Replacement of the existing fenestration with double glazed timber windows in the same st…
21/3981
2021 Approved
179 Walm Lane, London, NW2 3AY
Partial demolition of front boundary wall, erection of new front boundary wall, new gates…
21/2520
2021 Approved
179 Walm Lane, London, NW2 3AY
Retention of outbuilding and associated landscaping to rear garden of dwellinghouse.
21/3107
2017 Approved
192 Walm Lane, London, NW2 3BP
Single storey rear extension, insertion of two ground floor side facing windows, installa…
17/0485
2016 Approved
196 Walm Lane, London, NW2 3BP
Single storey rear and side infill extension, enlargement existing rooflight over the fla…
16/5139
2016 Approved
196 Walm Lane, London, NW2 3BP
Alterations to the existing 3 rear dormers to include the replacement and insertion of a…
16/5134
2016 Approved
165 Walm Lane, London, NW2 3AY
Erection of a two rear dormer windows and insertion of one rear rooflight to dwellinghouse
16/4676
2016 Approved
Flats 210A-E INC, Walm Lane, London, NW2 3BP
The replacement of the glass and frames of three dormers sash windows in a conservation a…
16/2218
Brent
Planning Authority Score
5.7/10
Average
#113 of 296 councils
Relevant to this application:
Householder decisions

Brent is faster than most councils at deciding householder applications, ranking #91 out of 296. Only 28% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Householder applications are slightly less likely to be approved here (85%) than the national average (90%).

Faster than most councils
for householder decisions
These figures are council-wide context, not a prediction for this application. View full council performance
Brent decision statistics
Based on MHCLG data, the year to March 2026
78%
Overall approval rate
Below avg (87%) #269 of 296
85%
Householder approved
Below avg (90%) #247 of 296
73%
Decided in 8 weeks
Above avg (63%) #91 of 296
28%
Extended time limit
Below avg (41%) #42 of 296
53%
Minor dwellings approved
73 decided (1-9 homes)
85%
Major dwellings approved
13 decided (10+ homes)
54%
Change of use approved
193 decided
1,963
Total decisions
431 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings

Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use

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.