3 Blenheim Road London NW8 0LU Data via plota.co.uk

26/05589/LBC - Listed Building Consent Application Approved

Proposal

Excavation of single-storey basement extension with lightwells to front and rear gardens; Erection of single-storey extension to rear and three-storey extension to side; Formation of door to rear at lower ground floor level; Landscaping works; and associated external alterations; Internal alterations, including changes to planform and replacement of fireplace at lower-ground floor level. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
17 Aug 2026
✓
Approved
22 Oct 2026

Approved on 22 Oct 2026 · Delegated Decision · Last checked 23 Oct 2026

Documents 62

Plans & drawings 47

PDF EXISTING SECTION BB AND DD Drawing · 13 Oct 2026 View ↗ PDF EXISTING SECTION AA AND CC Drawing · 13 Oct 2026 View ↗ PDF EXISTING ELEVATIONS [2/2] Drawing · 13 Oct 2026 View ↗ PDF EXISTING ELEVATIONS [1/2] Drawing · 13 Oct 2026 View ↗ PDF EXISTING ROOF Drawing · 13 Oct 2026 View ↗ PDF EXISTING FIRST FLOOR Drawing · 13 Oct 2026 View ↗ PDF EXISTING GROUND FLOOR Drawing · 13 Oct 2026 View ↗ PDF EXISTING LOWER GROUND FLOOR Drawing · 13 Oct 2026 View ↗ PDF SITE PLAN Drawing · 13 Oct 2026 View ↗ PDF SITE LOCATION PLAN Location Plan · 13 Oct 2026 View ↗ PDF PROPOSED SECTION DD Drawing · 13 Oct 2026 View ↗ PDF PROPOSED SECTION BB Drawing · 13 Oct 2026 View ↗ PDF PROPOSED SECTION AA - CC Drawing · 13 Oct 2026 View ↗ PDF PROPOSED SIDE ELEVATION Drawing · 13 Oct 2026 View ↗ PDF PROPOSED REAR ELEVATION Drawing · 13 Oct 2026 View ↗ PDF PROPOSED FRONT ELEVATION Drawing · 13 Oct 2026 View ↗ PDF PROPOSED BASEMENT AREAS Drawing · 13 Oct 2026 View ↗ PDF PROPOSED ROOF Drawing · 13 Oct 2026 View ↗ PDF PROPOSED FIRST FLOOR Drawing · 13 Oct 2026 View ↗ PDF PROPOSED GROUND FLOOR Drawing · 13 Oct 2026 View ↗ PDF PROPOSED LOWER GROUND FLOOR Drawing · 13 Oct 2026 View ↗ PDF PROPOSED BASEMENT FLOOR Drawing · 13 Oct 2026 View ↗ PDF PROPOSED FIRST FLOOR PLAN Drawing · 17 Aug 2026 View ↗ PDF PROPOSED ROOF PLAN Drawing · 17 Aug 2026 View ↗ PDF PROPOSED SECTION BB Drawing · 17 Aug 2026 View ↗ PDF SITE LOCATION PLAN [CONSENTED] Location Plan · 17 Aug 2026 View ↗ PDF PROPOSED BASEMENT AREAS [CONSENTED] Drawing · 17 Aug 2026 View ↗ PDF PROPOSED ROOF [CONSENTED] Drawing · 17 Aug 2026 View ↗ PDF PROPOSED FIRST FLOOR Drawing · 17 Aug 2026 View ↗ PDF EXISTING SECTION BB AND DD [CONSENTED] Drawing · 17 Aug 2026 View ↗ PDF EXISTING SECTION AA CC [CONSENTED] Drawing · 17 Aug 2026 View ↗ PDF EXISTING ELEVATIONS [CONSENTED] Drawing · 17 Aug 2026 View ↗ PDF EXISTING GROUND FLOOR [CONSENTED] Drawing · 17 Aug 2026 View ↗ PDF EXISTING ELEVATIONS [CONSENTED] Drawing · 17 Aug 2026 View ↗ PDF EXISTING ROOF [CONSENTED] Drawing · 17 Aug 2026 View ↗ PDF EXISTING FIRST FLOOR [CONSENTED] Drawing · 17 Aug 2026 View ↗ PDF SITE PLAN [CONSENTED] Drawing · 17 Aug 2026 View ↗ PDF EXISTING LOWER GROUND FLOOR [CONSENTED] Drawing · 17 Aug 2026 View ↗ PDF PROPOSED SECTION DD [CONSENTED] Drawing · 17 Aug 2026 View ↗ PDF PROPOSED BASEMENT FLOOR [CONSENTED] Drawing · 17 Aug 2026 View ↗ PDF PROPOSED LOWER GROUND FLOOR [CONSENTED] Drawing · 17 Aug 2026 View ↗ PDF PROPOSED GROUND FLOOR [CONSENTED] Drawing · 17 Aug 2026 View ↗ PDF PROPOSED ELEVATIONS [CONSENTED] Drawing · 17 Aug 2026 View ↗ PDF PROPOSED ELEVATIONS [CONSENTED] Drawing · 17 Aug 2026 View ↗ PDF PROPOSED ELEVATIONS [CONSENTED] Drawing · 17 Aug 2026 View ↗ PDF PROPOSED SECTION AA [CONSENTED] Drawing · 17 Aug 2026 View ↗ PDF PROPOSED SECTION BB [CONSENTED] Drawing · 17 Aug 2026 View ↗

All documents on the council site ↗

Site constraints 7

Grade II listed: 3 and 4, Blenheim Road Nw8
List entry 1291866 · The pin is inside its outline · 35 more listed buildings within 150 m (35 Grade II)
Listed building consent is needed for work that affects the special interest of a listed building, inside or out, on top of planning permission. Setting can be a consideration for buildings nearby; there is no fixed radius.
Show the other 35 with distances
Historic England ↗
St John's Wood 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 ↗
Article 4 direction
Article 4 Basement Development Permitted Rights Removed. 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: Westminster 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 ↗
Protected tree 7 m away: STM9_T27, order STM9
3 protected trees within 15 m. Named in a tree preservation order: work to it, its roots included, needs the council's consent first.
Root protection areas reach up to 15 m from a large tree, so an extension or new foundations this close usually needs a tree survey. Only some councils publish their single trees, and a position can be approximate: the order at the council is the definitive record, and no tree shown is not proof there is none.
Show all 3 trees with distances
Tree record ↗
Also on the record
Inside the City of Westminster built-up area; Public transport access: PTAL 4 (good), TfL 2023, for the 100 m square.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 6 October 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.

Sales history 1

Last sold for £2,800,000 in April 2018. Semi-detached house, freehold.

9 April 2018£2,800,000

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

Building

Floor area148 m² (1,593 sq ft)
Energy ratingD (60 out of 100), could reach C
PropertyEnd-terrace house, 6 habitable rooms
Built1900 to 1929
HeatingBoiler and radiators, mains gas
WallsBasement wall

From the energy performance certificate lodged in January 2026, the latest held for this property. The building may have changed since. View the certificate

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Important details

Application type
Listed Building Consent Application
Postcode
NW8 0LU
Received
17 Aug 2026
Validated
17 Aug 2026
Ward
Abbey Road
Case officer
Show
Target decision
23 Oct 2026
Decision
Application Permitted
Decision date
22 Oct 2026
Decision level
Delegated Decision
Applicant
Show
Agent
Savills

How this decision compares

Decided in 66 days from validation, 9 days slower than Westminster's median of 57 for demolitions. Approved, as 89% of demolitions here are.

49%decided within 8 weeks
89%approved
121decided in the last year

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

Public comments

No public comments yet.

Last counted 23 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15157721
Planning Portal ref
PP-15157721
Comments by
23 Sept 2026
Site or press notice
2 Sept 2026
Env. assessment
No
Westminster
Planning Authority Score
3.5/10
Below average
#221 of 296 councils
Relevant to this application:
Other decisions

Westminster is slower than most councils at deciding householder applications, ranking #258 out of 296. Only 28% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Westminster is also one of the strictest councils - it refuses more householder applications than almost any other, with only 81% approved vs 90% nationally.

One of the strictest councils
only 81% approved vs 90% nationally
These figures are council-wide context, not a prediction for this application. View full council performance
Westminster decision statistics
Based on MHCLG data, the year to March 2026
86%
Overall approval rate
Below avg (87%) #201 of 296
81%
Householder approved
Below avg (90%) #277 of 296
44%
Decided in 8 weeks
Below avg (63%) #258 of 296
28%
Extended time limit
Below avg (41%) #46 of 296
83%
Minor dwellings approved
12 decided (1-9 homes)
67%
Major dwellings approved
3 decided (10+ homes)
81%
Change of use approved
133 decided
4,602
Total decisions
648 refused in the year to March 2026

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

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.