No 5 Merchant Square
mossessian and partners 5 Merchant Square World Architecture Awards Overview: No 5 Merchant Square is a landmark office building: an elegant and functional solution to the requirements of the site and the demands of business which reflects a deep understanding of culture, urbanity, technology and sustainability. Its three triangular volumes create a light and sculptural form which provides large, efficient floor plates and dynamic spaces. The building envelope features varied textures and patterns, including bold use of colour, to emphasise lightness and improve energy efficiency. No 5 Merchant Square is the iconic centre-piece of European Land’s Merchant Square, the 1.8 million sq ft mixed-use development at Paddington Basin, one of Europe’s biggest regeneration sites. The building continues the legacy of the two existing buildings – Roger’s Waterside and Farrell’s Point while articulating a form that would allow for future development to the North. Currently, the largest project under construction in Westminster, the building provides 370,000 sq ft of office and retail space arranged over 14 floors plus an executive penthouse office. With floor-plates averaging 25,000 sq ft it is an elegant yet highly technical response to the growing demand for quality office space in London’s West End. mossessian & partners has developed a number of cutting-edge design features which ensure the building connects with its environment and those that exist within it. The dramatic 15 storey public atrium – the largest in Europe – is an artwork in its own right. Covered in striking red screen printed glass frit panels, it forms stunning patterns against the surrounding buildings and canal without tinting incoming natural light. The aluminium framed curtain wall system breaks up the façade of the building with a lively and varied texture that offers clear views outside whilst maintaining an important sense of privacy. In keeping with the firm’s strong environmental ethic, the building has achieved carbon emission reductions in excess of part L requirements; the cladding also enabled mossessian & partners to reduce the use of glass in the building to 40%, contributing to its BREEAM ‘Excellent’ rating. Inside the vast open volumes are built around three distinct masses, which enhance the sense of space and movement throughout. This is echoed in the high ceilings and the external terraces at the corner of every floor which offer spectacular views of the city - unique ‘communal’ areas where employees are encouraged to meet. No 5 Merchant Square creates an immediate sense of light, air and openness not usually associated with office buildings. No 5 Merchant Square is about “Breaking the Box` - moving past the traditional hermetically sealed office block - generating porosity through a series of membranes defining inside and outside.


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