Basement Flat, 3 Lancaster Road and 3 Lancaster Road, London, W11 1QL Data via plota.co.uk

Approved PP/26/01743

Council

Kensington and Chelsea 5.1/10

Date received

21 Apr 2026

Date validated

21 Apr 2026

Decision date

20 May 2026

Postcode

W11 1QL

Description

Lowering of lower ground floor level, construction of single storey rear extension at lower ground floor level, construction of rear infill extension at ground floor level with terrace above, with elevational alterations. Replacement of windows with double glazed units. Reconfiguration of front entrance steps to provide access to lower ground floor level. Replacement of front railings, and front terrace railings with metal balustrade. Internal reconfiguration of the two flats. Creation of a roof terrace with the provision of two condensers within an acoustic enclosure at main roof level. Data via plota.co.uk

Get alerts nearby Council site ↗

Last checked 12 Sept 2026, 08:05

How this decision compares

Decided in 29 days from validation, 27 days faster than Kensington and Chelsea's median of 56 for full applications. Approved, as 87% of full applications here are.

This one29d

Council56d

UK56d

61%decided within 8 weeks

87%approved

54,582decided in the last year

Plota live figures for full applications decided across the UK in the last twelve months, from validation; too few recent full applications in Kensington and Chelsea to go on. Kensington and Chelsea decision record →

Site constraints 5

Colville 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 - No 100. Named permitted development rights are withdrawn here.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.

Tree preservation order

Consent is needed before work on protected trees.

Not every council has published its orders as open data, so no order shown is not proof there is none.

Air quality management area: Kensington and Chelsea 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 Kensington and Chelsea 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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Historical activity at this location

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

Within ~100m