78 Chiltern Street London W1U 5AE

07/08290/LBCListed Building Consent ApplicationApproved

Listed building consent

Approved on 30 November 2007

Council decision: Application PermittedDelegated (officer decision)

Approximate location: the centre of the postcode, not the exact property.

Proposal

Alterations during the course of construction to approved scheme approved 2 May 2006 (RN: 06/00352). Extension to existing flats at first and second floor level and erection of new third and fourth floor to create three bed maisonette with rear terrace. Internal alterations to facilitate installation of lift and alterations to staircase; namely to incorporate glazing to internal stair of new flat at fourth floor level.

Received: 20 September 2007
Decision level: Delegated (officer decision)
Council: City of Westminster
Ward: Marylebone High Street

ReceivedReceived20 Sep
ValidatedValidated9 Oct
Consult.Consultation
TargetTarget Date3 Dec
DecidedDecided30 Nov

Decided in 52 days (council typically 49)

About this application

This is a heritage application for an extension at 78 Chiltern Street London W1U 5AE. Westminster has handled 2,677 applications of this type. This one was decided in 71 days, 3 weeks longer than Westminster's typical decision time. The site is in the Portman Estate conservation area, with 2 listed buildings nearby. There have been 8 other applications at this address. We hold 1,070 applications in total for the W1U postcode area.

93% of heritage applications at City of Westminster were approved. Across all application types, the council typically decides in about 7 weeks (median).

Based on decided applications received in the last 3 years.Planning something similar? See what gets approved on your street

Application details

Postcode: W1U 5AE
Application type: Listed Building Consent Application
Scale / size: Small

Planning application dates

Date validated: 9 October 2007
Consultation expiry: 16 November 2007
Target decision date: 3 December 2007
Committee meeting: 30 November 2007

Applicant and agent

Agent address: Unit 15 Grand Union Centre West Row London W10 5AS

Planning decision

Statutory period: 55 days

Publicity

Last advertised: 26 October 2007
Advertisement expiry: 16 November 2007
Site notice start: 19 October 2007
Site notice end: 9 November 2007

Additional information

Planning Portal ID: PP-00289069
Comments: 0
Documents: 7

Site constraints

Checking the site

2/3

Council recordsAppealsFlood risk

Designations at the address point. Ones next to the site may also apply.

Conservation area: Portman Estate
Listed building: Grade II: 78, Chiltern StreetOn or next to this site
Article 4 direction: Article 4 Basement Development Permitted Rights Removed
Flood zone 1: Low probability (rivers and sea)

Also checked, none recorded (21)

flood storage areas, tree preservation orders, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.

A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.

Data © Crown copyright and others · sources and licences

Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.

© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.

Contains Ordnance Survey data © Crown copyright and database right 2026.

Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.

Associated applications

2007
20 Sep
Alterations during the course of construction of a scheme dated 02.05.2006 (RN:06/00352
ApprovedListed building consentFiled alongside07/08289/LBC
2007
20 Sep
Alterations during the course of construction to approved scheme approved 2 May 2006 (RN: 06/00352
This applicationApprovedListed building consent07/08290/LBC
2007
20 Sep
Alterations during the course of construction for a scheme dated 02.05.2006 (RN: 06/00352
ApprovedListed building consentFiled alongside07/08291/LBC

Planning history at this site

6 other applications at this property, newest first.

Source: Westminster

Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.

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