Barbican Podium Waterproofing, Drainage and Landscaping Works Phase 2 – 1st Priority Zone

Concepts

• complete or part construction
• construction work
• roof works
• 1st priority zone
• barbican podium phase
• waterproofing membrane
• remedial works
• landscaping works
• barbican podium waterproofing
• several more phases

Location

London

Description

The City of London Corporation (the City) invites Tenders for the provision of surface refurbishment, replacement of waterproofing membrane and remedial works to drainage infrastructure, and landscaping works to Barbican Podium Phase 2, 1st Priority Zone. A further zone may be added to the project at the Clients discretion with works of a similar nature and a potential additional contract value up to and in the region of £10,000,000. The Barbican Estate is grade 2 listed with a multitude of uses including an arts centre, 2014 dwellings, exhibition halls, cinemas, restaurants theatres, gallery space and a large conservatory. Designed and constructed in the 1960s and 1970s by architects Chamberlin, Powell and Bon the Barbican Estate represents a prominent example of brutalist architecture. The publicly accessible podium provides a pedestrian only elevated walkway connecting the residential towers, terraces and the Barbican Centre. The existing podium is predominantly made up of brick tiles with areas of defined planting set within the podium. The existing podium deck and waterproofing membrane has become damaged and is leaking into the buildings below including the Exhibition Halls.

Total Quantity or Scope

The City of London, as the owner and manager of the estate, is currently undertaking a largescale refurbishment of the podium deck. Phase 1 of this refurbishment was completed in 2015, this project will focus on Phase 2; a 18,344sqm area along the northern portion of the estate. Several more phases are expected to be required in order to repair other parts of the podium. An initial feasibility study was undertaken that demonstrated several reasons for this including: • the drainage system; • damage to the waterproofing; • shallow crossfalls; • detailing of the expansion joints. The podium deck needs be taken up to replace and repair the damaged waterproofing membrane. Works were completed on phase 1 in 2015. This project builds on the lessons learned from phase 1 for the area identified as phase 2. Surface refurbishment, replacement of waterproofing membrane, remedial works to drainage infrastructure, and landscaping works to Barbican Podium Phase 2, 1st Priority Zone.

Renewal Options

The duration of the contract is anticipated to be 2 years, subject to the right of the City (at its sole discretion) to exercise its right to extend the Contract by up to 1 year. The maximum length of the contract is therefore anticipated to be 3 years.

CPV Codes

• 45200000 - Works for complete or part construction and civil engineering work
• 45000000 - Construction work
• 45260000 - Roof works and other special trade construction works

Indicators

• Bids should cover the whole contract.
• Options are available.
• Renewals are not available.
• Performance considerations apply.
• Professional qualifications are sought.
• Award on basis of price and quality.

Other Information

This tendering exercise is being undertaken using the electronic tendering system ‘capitalEsourcing’ (www.capitalesourcing.com). Suppliers will need to register an interest on the system in order to participate and registration is free. The estimated value given at II.2.6) is for the full duration of the contract including the maximum possible extensions. The estimated contract value for the 1st priority zone is 18500000GBP, therefore the estimated annual contract value is 9250000GBP.