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Delta House 175-177 Borough High Street Southwark SE1 1HR

25/AP/2649Minor applicationApproved
Full

Approved on 26 May 2026

Site boundary (council red line)

Proposal

Alterations including partial demolition and extension to the existing building to create additional Class E office floorspace; to include extension and reconfiguration at roof level and the rear, creation associated amenity terraces, facade alterations including replacement shopfronts, replacement/additional plant and plant enclosures, and other works associated with the development.

Received
15 September 2025
Public comments
2
Ward
Chaucer
  1. Received15 Sep
  2. Validated26 Sep
  3. Consult.23 Oct
  4. Target20 Nov
  5. Decided26 May

Decided in 242 days (council typically 49)

About this application

This is a full planning application for demolition at Delta House 175-177 Borough High Street Southwark SE1 1HR. Southwark has handled 1,045 applications of this type. This one was decided in 253 days, 29 weeks longer than Southwark's typical decision time. The site is in the Borough High Street conservation area, with 5 listed buildings nearby. There are no previous applications recorded at this address. In the past year there have been 58 applications across Chaucer. We hold 2,758 applications in total for the SE1 postcode area.

93% of full applications at London Borough of Southwark 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
SE1 1HR
Application type
Minor application
Scale / size
Small
Parish
Borough, Bankside And Walworth

Planning application dates

Date validated
26 September 2025
Last date for comments
23 October 2025
Target decision date
20 November 2025

Applicant and agent

Agent address
100 Pall Mall London SW1Y 5NQ United Kingdom

Planning decision

Statutory period
55 days

Additional information

Documents
80

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: Borough High Street
  • Listed building: Grade II: 177, Borough High StreetOn this site
  • Article 4 direction: Central Activities Zone+1 more
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.

© 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.

Associated applications

  1. 2025
    17 Sep

    Listed building consent for alterations including partial demolition and extension to the existing building…

    ApprovedListed building consentFiled alongside25/AP/2677
  2. 2025
    15 Sep

    Alterations including partial demolition and extension to the existing building to create additional Class E…

    This applicationApprovedFull25/AP/2649

Source: Southwark

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

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