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Regent's Place

  • London

  • 2009

  • Contractor Bovis Lend Lease Ltd.

  • Photos: Charlotte Wood Photography

Designed by Terry Farrell and Partners the development has significantly extended and enhanced Regent’s Place

The Regent’s Place Project is a development situated along Osnaburgh Street, at the Northern end of Regent Street in London’s West End. The construction is now complete on the 2.5 acre site situated on the west side of Regent's Place. The 490,000 sq ft mixed use development comprises office accommodation within 10 and 20 Triton Street, in addition to 110,000 sq ft of residential apartments at One Osnaburgh Street. Focchi has manufactured the façades for 10 and 20 Triton Street. The first (No 10) is a 165.000 sq ft (50.292 m2) speculative office development over 9 storeys. The second (No 20) is a 400.000 sq ft (121.920 m2) speculative office development over 10 storeys. The buildings stand on a common ground floor slab, with a variable depth basement beneath. Designed by Terry Farrell and Partners the development has significantly extended and enhanced Regent’s Place, already a successful 13 acre West End office campus. The development includes a community theatre and additional retail provision around the new public square. An important part of the master plan for Regent’s Place has been to increase the permeability of the estate through the creation of new or improved East / West and North / South links, and a new western entrance onto Osnaburgh Street. This has given improved pedestrian access within the estate and through to the transport links of Great Portland Street and Warren Street underground stations. This improvement to the environment has been enhanced with substantial planting and re-landscaping throughout the estate, including the creation of a new public square and outside courtyard, and remodelling of the existing public space and the installation of various commissioned works of public art. British Land has long been committed to putting sustainability at the heart of its business. It’s an approach that saw British Land named Sustainable Developer of the Year at Building Magazine’s 2007 Sustainability Awards. Regent’s Place is one of British Land’s flagship projects in this respect. The new office buildings contain 2.000 sq ft of green roofs, extensive rainwater harvesting and “grey water” recycling, as well as the planting of 180 new trees. 90% of demolition waste has been recycled and put to new use, while all timber used comes from 100% sustainable resources. Both buildings have achieved an “Excellent” BREAM rating.

Systems

  • Unitised façade

  • Ventilated façades

  • Featuring elements

The technology

The design technology for the main façades of the two buildings consists of a prefabricated unitised system which combines the well known value and quality of a product pre-assembled in the factory with a quicker site installation period. The unitised system has the flexibility to accommodate the particular architectural features and the structural requirements of the project. The façades of the typical floors, divided in groups of 8 units (4 per floor), are inserted into a grid of precast concrete beams and columns: white concrete for Block A and natural stone faced precast concrete for Block B. The curtain walling is enriched by architectural elements integrated into the external envelope: glass fins consisting of laminated glass with coloured PVB for building A and bay windows with variable colour finishes and projections for building B. The roof terrace balustrade consists of toughened laminated glass panes bolt fixed at the base without perimeter frames or supporting mullions. The set back upper floor façades of both buildings provide a complex geometry which integrates curved and straight curtain walling, with double height units and horizontal glass roofing. The distinctive element of Block A consists of 6 m high laminated glass fins which are fixed back to the split mullions of the unitised curtain walling frame via stainless steel brackets. The upper floors of Block B feature “castellation boxes” consisting of stainless steel sub-frames and enamelled toughened glass structural silicone bonded to the steel sub-frames. All the façades have been bespoke designed and tested in accordance with CWCT standards. The terrace curtain walling has been designed in order to allow a slab live load deflection of 40 mm every 3 m in order to reduce costs of adding steelwork under the slab to give additional support. An interesting feature is the rear elevation which has both a unitised system complete with glazed Terracotta tile spandrel panels and an area of Terracotta hand fixed directly onto a concrete wall thus creating a ventilated façade. A grid and panel system is installed at ground floor of both buildings to better suit the architectural needs of the large reception areas and double height floor of approximately 8 m.

Architects

Farrells London

Terry Farrell & Partners led by Sir Terry Farrell, is an international firm of architects and planners with offices in London, Hong Kong and Shanghai. TFP is a designed based practice that applies the highest standards of architectural imagination and design excellence to all aspects of a scheme, from initial design to project completion. The company is renowned for its expertise in architecture, urban design, regeneration and planning. The worldwide portfolio includes high-profile buildings and masterplans in cities as diverse as London, Hong Kong, Beijing, Seoul, Sydney, Seattle, Lisbon and Edinburgh. Many of these have won international design awards and the company’s architectural and urban design work is featured in publications worldwide. Terry Farrell has contributed to key strategic issues. He advises the Mayor of London on his Design Advisory Committee and the Department for Transport on high-speed rail. In 2008 he was appointed Design and Planning Leader for the Thames Gateway, one of the Europe’s largest regeneration project.