141-143 Harley Street – Phases 1 & 2

141-143 Harley Street
Enabling Works, Basement Construction, Envelope and Landlords Fit Out
Framework Value:
The Howard De Walden Estate

About the Project

141-143 Harley Street, located in the heart of the private medical centre of London, was set for refurbishment to allow the installation of ground breaking medical equipment to serve private practices. Deconstruct UK were initially engaged on the project to provide an enabling works and basement construction solution. The Phase 1 works executed at the project saw:

• Demolition of an existing mews building to the rear.

• Installation of temporary flying shoring frame to support mews buildings.

• Secant piling to the perimeter.

• 13 meter basement excavation.

• Contiguous and Bearing Pile Installation at the new formation level.

• Reinforced waterproof concrete subterranean structure.

Following the successful completion of Phase 1, De-Group Contracting were appointed to undertake Phase 2 of the works, the Landlords fit out. The scope of works comprised the completion of the remaining above ground structural works,cladding of external envelope, waterproofing, installation of an electrical substation, installation of M&E services plus installation of passenger and bed lifts.

Project Challenges

Did You Know?

Project Challenges

There were a number of challenges to be considered and dealt with on this development, particularly the restrictions placed on the Mews road to the rear, and some notable neighbours. There was to be no access via the rear road to service the project, to overcome this challenge we installed a conveyor of 60 linear meters in length to provide a reliable means of removing in excess of 4,000m3 of excavated material from 13 meters below ground level. The same challenge was faced with bringing materials into the project for construction. Deconstruct UK designed and erected a lifting beam gantry to allow flatbed vehicles to arrive on site and be unloaded with ease.

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