Skip to content

11 Cambridge Street London SW1V 4PP

26/01735/NMANon-material amendmentsApproved
Discharge / amendments

Approved on 16 April 2026

Site boundary (council red line)

Proposal

Amendments to planning permission dated 20th March 2025 (RN 23/07877/FULL) for: Erection of mansard roof extension to existing dwelling at first and second floors level including raised chimney, double glazed timber sash window and other associated works namely, infill of small indent to rear facade up to the upper parapet level.

Received
18 March 2026
Ward
Pimlico North
Agent
MacAusland Design Ltd
  1. Received18 Mar
  2. Validated18 Mar
  3. Consult.
  4. Target15 Apr
  5. Decided16 Apr

Decided in 29 days (council typically 49)

About this application

This is an application to amend a permission at 11 Cambridge Street London SW1V 4PP. Westminster has handled 604 applications of this type. This one was decided in 29 days, 3 weeks quicker than Westminster's typical decision time. The site is in the Pimlico conservation area, with 5 listed buildings nearby. There are no previous applications recorded at this address. In the past year there have been 73 applications across Pimlico North. We hold 1,120 applications in total for the SW1V postcode area.

88% of amendment 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.See what's approved near your address

Application details

Postcode
SW1V 4PP
Application type
Non-material amendments
Scale / size
Small

Planning application dates

Date validated
18 March 2026
Target decision date
15 April 2026

Applicant and agent

Agent
MacAusland Design Ltd
Architect profile
MACAUSLAND DESIGN LIMITED
Agent address
24 Old Burlington Street London London W1S 3AW United Kingdom

Planning decision

Statutory period
28 days

Additional information

Planning Portal ID
PP-14774252
Comments
0
Documents
7

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Flood zone 3: High probability (rivers and sea)
  • Conservation area: Pimlico
  • Article 4 direction: Article 4 Basement Development Permitted Rights Removed
Also checked, none recorded (22)

flood storage areas, listed buildings, 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.

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

© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.

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.

Source: Westminster

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

Track this application

Get email alerts when there is a planning decision or status change.

Get email alerts near SW1V

New planning applications delivered to your inbox daily.

Around this site

Discuss this application on r/PlanningPermissionUK

For applicants and trades

What's been approved on your street?

See what the council approved and refused near this address for the project you have in mind, and the rules that apply here.

Get The Signal Report