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Planning application

1 Silk Street City Of London London EC2Y 8HQ

Awaiting decision Westminster 26/01229/OBS Application for obs to adj boroughs

Works: Demolition

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

This development is proposed to be a phased development (phase 1: demolition, phase 2 construction) comprising: the demolition of the existing buildings, partial retention of the existing basement (including creation of a mezzanine) and construction of a new building for office use (Class E(g)), flexible office/community use (Class E(g)/F2), flexible cultural/event uses (Sui Generis) and flexible retail/service/food and beverage uses (Class E(a)-(c)); comprising a basement level, ground and 20 upper storeys plus roof plant level; creation of new public space and new pedestrian routes at ground level; hard and soft landscaping; pedestrian and vehicle access; blue badge car and cycle parking; ancillary servicing, plant and other back of house space; excavation to accommodate attenuation tank beneath existing basement slab, external alterations and demolition to the south elevation of the adjoining Porter Tun Room of the former Whitbread Brewery; associated highway works, enabling works and other works associated with the development.

As published by the council, reference 26/01229/OBS

Application record

Reference
26/01229/OBS
Type
Application for obs to adj boroughs
Status
Pending
Received
24 Feb 2026
Validated
24 Feb 2026
Postcode
EC2Y 8HQ

Site history

Applications at this address on the Westminster register

This site has had 2 applications since 2025.

  • 25/06796/OBS Decided

    1 Silk Street City Of London London EC2Y 8HQ

    An application for planning permission (25/00829/FULEIA) for the following development at the above site: This development is proposed to be a phased development (phase 1: demolition, phase 2 construction) comprising: the demolition of the existing buildings, partial retention of the existing basement (including creation of a mezzanine) and construction of a new building for office use (Class E(g)), flexible office/community use (Class E(g)/F2), flexible cultural/event uses (Sui Generis) and flexible retail/service/food and beverage uses (Class E(a)-(c)); comprising a basement level, ground and 20 upper storeys plus roof plant level; creation of new public space and new pedestrian routes at ground level; hard and soft landscaping; pedestrian and vehicle access; blue badge car and cycle parking; ancillary servicing, plant and other back of house space; excavation to accommodate attenuation tank beneath existing basement slab, external alterations and demolition to the south elevation of the adjoining Porter Tun Room of the former Whitbread Brewery; associated highway works, enabling works and other works associated with the development. And an application for listed building consent (25/00830/LBC) for the following works at the above site: External alterations to the south elevation of the Porter Tun Room of the former Whitbread Brewery in connection with the development at 1 Silk Street. Demolition of the brick casing and removal of services and a vent belonging to 1 Silk Street, fixed against the brewery building elevation, including making good of any existing brickwork.

    Decided 8 Oct 2025

Timeline

Dates from the published record

  1. 24 Feb 2026

    Received by Westminster

  2. 21 Jul 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 21 April 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

    Westminster took a median of 66 days over the applications it decided in the last year.

Documents

Plans, drawings, consultee responses and the officer's report

1 document on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

Watch members (£5 a month) open the document list from here.

Open the documents

What happens while it is decided

This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster's median decision took 66 days. More in our guide to how long planning decisions take.

About this record

The published feed does not state which type of application this is; the register entry on Westminster's portal will say. Our guide explains the common types.

Nearby applications

Within 0.3 miles

  • 1 Silk Street London EC2Y 8HQ

    10/00126/MDC Submitted 25 Feb 2010 50 yards away

    Details of replacement cycle hire racks pursuant to condition 6 of planning permission dated 30.11.2009 ( Case number 09/00682/FULL) .

    Granted Conditions 6 docs
  • 1 Silk Street City Of London London EC2Y 8HQ

    25/06796/OBS Submitted 19 Sep 2025 50 yards away

    An application for planning permission (25/00829/FULEIA) for the following development at the above site: This development is proposed to be a phased development (phase 1: demolition, phase 2 construction) comprising: the demolition of the existing buildings, partial retention of the existing basement (including creation of a mezzanine) and construction of a new building for office use (Class E(g)), flexible office/community use (Class E(g)/F2), flexible cultural/event uses (Sui Generis) and flexible retail/service/food and beverage uses (Class E(a)-(c)); comprising a basement level, ground and 20 upper storeys plus roof plant level; creation of new public space and new pedestrian routes at ground level; hard and soft landscaping; pedestrian and vehicle access; blue badge car and cycle parking; ancillary servicing, plant and other back of house space; excavation to accommodate attenuation tank beneath existing basement slab, external alterations and demolition to the south elevation of the adjoining Porter Tun Room of the former Whitbread Brewery; associated highway works, enabling works and other works associated with the development. And an application for listed building consent (25/00830/LBC) for the following works at the above site: External alterations to the south elevation of the Porter Tun Room of the former Whitbread Brewery in connection with the development at 1 Silk Street. Demolition of the brick casing and removal of services and a vent belonging to 1 Silk Street, fixed against the brewery building elevation, including making good of any existing brickwork.

    Decided Demolition 2 docs
  • Porter Tun Room The Brewery Milton Street London EC1Y 4SA

    25/00830/LBC Submitted 26 Jun 2025 50 yards away

    100% historically approved · decision due ~6 Nov

    External alterations to the south elevation of the Porter Tun Room of the former Whitbread Brewery in connection with the development at 1 Silk Street: demolition of the brick casing and removal of services and a vent belonging to 1 Silk Street, fixed against the brewery building elevation, including making good of any existing brickwork. RE-CONSULTATION DUE TO AMENDMENTS. THE CONSULTATION PERIOD IS EXTENDED UNTIL MONDAY 13.04.2026.

    Awaiting decision Heritage and listed buildings Demolition 297 docs
  • 1 Silk Street London EC2Y 8AL

    25/00829/FULEIA Submitted 26 Jun 2025 50 yards away

    99% historically approved · decision due ~6 Nov

    This development is proposed to be a phased development (phase 1: demolition, phase 2 construction) comprising: the demolition of the existing buildings, partial retention of the existing basement (including creation of a mezzanine) and construction of a new building for office use (Class E(g)), flexible office/community use (Class E(g)/F2), flexible cultural/event uses (Sui Generis) and flexible retail/service/food and beverage uses (Class E(a)-(c)); comprising a basement level, ground and 20 upper storeys plus roof plant level; creation of new public space and new pedestrian routes at ground level; hard and soft landscaping; pedestrian and vehicle access; blue badge car and cycle parking; ancillary servicing, plant and other back of house space; excavation to accommodate attenuation tank beneath existing basement slab, external alterations and demolition to the south elevation of the adjoining Porter Tun Room of the former Whitbread Brewery; associated highway works, enabling works and other works associated with the development.

    Awaiting decision Full applications Demolition 1135 docs
  • 1 Silk Street, London, EC2Y 8AL

    P2025/2707/OBS Submitted 19 Sep 2025 50 yards away

    This development is proposed to be a phased development (phase 1: demolition, phase 2 construction) comprising: the demolition of the existing buildings, partial retention of the existing basement (including creation of a mezzanine) and construction of a new building for office use (Class E(g)), flexible office/community use (Class E(g)/F2), flexible cultural/event uses (Sui Generis) and flexible retail/service/food and beverage uses (Class E(a)-(c)); comprising a basement level, ground and 20 upper storeys plus roof plant level; creation of new public space and new pedestrian routes at ground level; hard and soft landscaping; pedestrian and vehicle access; blue badge car and cycle parking; ancillary servicing, plant and other back of house space; excavation to accommodate attenuation tank beneath existing basement slab, external alterations and demolition to the south elevation of the adjoining Porter Tun Room of the former Whitbread Brewery; associated highway works, enabling works and other works associated with the development.

    Decided Demolition
  • 163 Cromwell Tower Barbican London EC2Y 8DD

    26/00664/LBC Submitted 7 May 2026 50 yards away

    Internal alterations to include the removal of internal door between kitchen and utility, removal of sliding panels in hallway and cupboards in bedrooms. Installation of sliding door to en suite shower room, replacement of internal doors and refurbishment of kitchen and bathrooms.

    Granted Heritage and listed buildings 6 docs