Watling Court, London

Watling Court, London

This project involded the demolition of an existing six story framed superstructure, and the construction of a new seven story steel framed structure to create office space in London City Centre, close to the Waterloo and City Line stations.

Workplaces - London

Project Overview

The project comprises the demolition of an existing six storey RC framed superstructure with the single storey basement retained. A new seven storey steel framed structure is to be constructed and designed to BCO standards.

The site is located close to St Paul's Cathedral and has frontage along Cannon Street. To allow maximum flexibility, the proposed structural grid is in the order of 15m x 9m, and the floor construction comprises of a 150mm thick metal decked slab designed to act compositely with 600mm deep Westock beams. The diameter of the cells within the Westock beams are 400 to 450mm to allow M&E services to pass through them, which has reduced the overall structural/services zone.

The upper floors are set back from Cannon Street to maintain the viewing corridor to St Paul's which was a key planning requirement. The set backs have required the introduction of a number of transfer structures at the upper floors. Options including full height trusses were explored by the team, and in the end, in order to achieve the agreed planning sightlines
a cascade of offset columns were introduced, with these upper columns sitting on steel transfer beams.

The proposed building is to have extensive plant situated in the basement. The depth of the existing basement is limited and design requires the basement to be deepend in certain areas to accommodate the proposed plant.

The site is located close to the Waterloo and City Line and requires LUL approval.

Services we provided:

  • Civils & StructuresCivils & Structures
  • Transport PlanningTransport Planning
  • InfrastructureInfrastructure

Client:

Eland Real Estate

We worked with:

Architects: Fletcher Priest

Share Project

The Challenge

To avoid costly temporary works to lower the entire basement.

Our Solution

Curtins undertook visual inspections of the structure and reviewed the available record drawings. The investigations showed that the original basement was constructed using traditional reinforced concrete retaining walls. To achieve the proposal, the existing basement perimeter walls were retained and the basement slab was lowered internally away from the toe of the retaining wall. This avoided the need for the contractor to construct a costly secant piled wall tight against the perimeter of the existing basement, which also fell outside the red line boundary of the site. Our solution also minimised any disruption to services at street level and damage to the adjacent highway. 

Similar Projects

11&12 Wellington Place, Leeds
Workplaces

11 & 12 Wellington Place is a 12-storey office building that forms part of the 140,000sqm mixed-use development in central Leeds.

11&12 Wellington Place, Leeds

Pentre Awel Construction
Healthcare

Pentre Awel is the first development of its scope and size in Wales providing world-class medical research and health care delivery and supporting and encouraging people to lead active and healthy lives.

Pentre Awel, Llanelli

Windmill Green Manchester
Workplaces

Also known as 24 Mount Street, this BREEAM Outstanding office building boasts rooftop terraces and up to 13,000sq ft of workplace suites.

Windmill Green (24 Mount Street), Manchester

KPMG Offices, Saltire Court, Edinburgh
Workplaces

Refurbishment and fit-out of a commercial office space in Saltire Court for KPMG.

KPMG Offices, Saltire Court, Edinburgh

Strawberry Fields, Liverpool
Arts & Culture

A 1,320m² visitor and training centre at Strawberry Field, in Liverpool – the former Salvation Army children’s home made famous by The Beatles.

Strawberry Fields, Liverpool

Aztec West 1000, Bristol
Mixed Use Regeneration

An eco office created in a refurbished 1980's steel framed building in Aztec West Business Park.

Aztec West 1000, Bristol

Contact Curtins

Let’s talk about your next project and how our experienced team can help

Find your nearest Curtins office

Contact