Glass art in the context of architecture: impressive right into the detail

22 Bishopsgate, London: a new landmark emerges with artwork by Alexander Beleschenko

In the heart of London “22 Bishopsgate” soars 278 meters into the sky. But one of the most characteristic design features of the building is directly above the heads of passers-by: the glass canopies. They consist of 149 laminates in total, colorfully designed by the artist Alexander Beleschenko. In order to print his designs accurately onto glass, a precise printing technique was necessary, and at the same time the glass itself needed to fulfill high technical demands. The artist, who lives in England but has Ukrainian roots, found this technical competence in Germany, where sedak (Gersthofen) produces safety glass that met the requirements, both in terms of accurate printing and quality.

A strong, colorful counterpoint to the cool metropolitan steel and glass architecture: when you walk along underneath the protruding glass roofs of the new London landmark “22 Bishopsgate” you find yourself immersed in a joyful interaction of color and light. The canopies are filled with blue, yellow, orange, red and green geometric shapes, sometimes opaque, sometimes translucent. Equally color-intensive patterns, like huge brushstrokes on the glass surfaces, can be found on the glass façade and colorfully designed glass elements decorate some of the ceilings in the entrances, serving as friendly indications of where to go. The lively design is strengthened by the many different formats of the glass. They vary in size and form: quadratic, trapezoid, triangular, free-form. No two glass elements are the same, each is unique, a highly imaginative work of art.

The glass was designed by the internationally renowned artist Alexander Beleschenko, who has been using this material to set identity-creating architectural accents for many years. For 22 Bishopsgate he was inspired by the traditional coats of arms of the trade guilds, which were omnipresent in (old) London. He reinterpreted them in a new, abstract way, thereby connecting modern with historic – a phenomenon that is part of everyday life in the British metropolis.

The symbiosis of transparency and color

Using glass for roofs already demands high technical standards (e.g. because of the danger of breakage). What makes the glass elements exceptional in this case is the permanently color-fast and highly precise printing, realized with a ceramic digital process at a resolution of 1080 dpi. This level of exactness goes way beyond the usual standard – on printed paper such as you may be holding in your hands right now, 300 dpi is the norm. If you are reading this online, you are probably looking at a screen with 140 dpi resolution (approximately 4K picture quality). Because ceramic colors are especially stable in terms of tone and do not become bleached even under UV radiation, they are ideal for use outdoors. Beleschenko was impressed with the color stability and especially the extremely high precision: he wanted his space-defining art to have an impact on viewers from a distance as well as up close. This technique enabled him to realize this aim perfectly.

The production went really easily for Beleschenko: he sent his (enormous) files directly to the glass processing company sedak. The pane construction: double-layer safety glass made from 8 mm low-iron glass (heat-strengthened glass) with digital printing. Artwork in position 2 or 3. As the art extends to the façade, there are also printed insulation glass panes. These are each made from two double laminates (6 mm heat-strengthened glass). They are filled with argon and printed in position 2 or 7. In total, sedak supplied 149 laminates and 370 insulated glass panes.

Art and works

Alexander Beleschenko knows how to design and realize large-scale art in architecture. Nevertheless, it is still a special moment for him when he sees his art installed for the first time – at this scale there is no possibility to check the complete work before it is finished. This makes the close cooperation between the artist and the glass processor especially important. With artistic vision, a feel for “the big picture” and know-how in working with the material glass and the possible processing technologies, unique works can be created. If everything is realized perfectly, “in a certain way you see the art rather than the technique”, said Beleschenko – the impressive result can now be seen in London at 22 Bishopsgate.



Ceramic digital printing: the technique for art

The glass was created using digital printing with six ceramic base colors – the designs consisted of opaque and transparent elements, color gradients and overlays. It was especially the overlays that enabled a wide diversity of color nuances to be created from the base colors – also using different thicknesses of the layers. The software had to work just as efficiently as the printer, the data volumes were huge: every piece of glass is unique. Because many of the glass elements have an individual shape, it was not possible just to put them all into the automated transport chains of the sedak production system; some had to be handled using suction equipment.


Glass is a really powerful medium in the context of architecturally defined space.
Alexander Beleschenko, artist

Alexander Beleschenko is very emotional and passionate. He was astounded at how precise a print on glass can be. This was very important for his motifs.
Ralf Scheurer, sales, sedak



Credits board

Architects: PLP Architecture, London
Owners: 22 Bishopsgate (DEVCO) Ltd, London
Façade construction: Josef Gartner GmbH, Gundelfingen
Glass artwork: Alexander Beleschenko
Glass processor: sedak, Gersthofen (D)



Inspired by the historic coats of arms of the trade guilds, Alexander Beleschenko created his exceptional works of art on the façade of the new London landmark “22 Bishopsgate”.
Photo: Simon Kennedy


Extremely high accuracy in printing (resolution up to 1080 dpi) was the technically decisive criterion for the artist in deciding to commission sedak with the printing.
Photo: sedak


For passers-by it is like walking through a rain of confetti under the printed canopies.
Photo: Simon Kennedy


Connection to the interior: colorfully designed glass in the connecting passageways takes over the design idea of the canopies with its own language of images and form, thus becoming one of the style-defining features of 22 Bishopsgate.
Photos: Simon Kennedy



For more information please contact:

sedak GmbH & Co. KG
Tatjana Vinkovic
Tel.: +49(0)821/2494-823
Fax: +49(0)821/2494-777

Reprint free of charge, copy requested



sedak – leading glass
Since its founding in 2007, Germany-based company sedak has used its pioneering spirit to establish itself as a premium manufacturer of large-format insulated and safety glass. sedak has evolved their glass as a construction material for all-glass facades and roofs. Iconic facades and buildings are created with an unprecedented degree of transparency thanks to superior quality of innovative products.

sedak manufactures single-pane glass units, multi-layer glazing and functional insulated glass units in formats up to 3.6 x 20 meters in an efficient, highly automated system. Raw glass is treated, strengthened, laminated, printed, lamination-curved and assembled into insulated glass with a unique set of machinery that spreads over a production area measuring 35,000qm. Since integrating Italian-based Sunglass Industry srl, who are the specialist in curved glass, sedak’s core expertise also now includes hot bending glass. The specialist also supplies exceptional solutions for luxury yachts with optimized glass for use on the high seas.

The glass fabricator particularly demonstrates its solution-oriented expertise in special designs. Thanks to its research and development spirit, new technologies and the expertise of its 190 employees, sedak is constantly advancing innovations in glass finishing and sees itself as a partner to architects, developers, facade builders and metalwork companies. As a specialist in oversized and extremely heavy glass, the company develops future-oriented solutions to implement customers visions with a flexible approach. The glass fabricator acts as a full-service supplier – from the initial order to final delivery. sedak thus helps advance tomorrow’s visionary architecture today.

Exceptional reference projects provide proof of impressive expertise. These include: Lakhta Center, St. Petersburg / House of European History, Brussels / Faculty of Medicine, Montpellier / Torre Europa, Madrid / Iconsiam, Bangkok / Apple Park, Cupertino / Apple Cube, New York / Experimenta, Heilbronn / Numerous premium flagship stores.




  • glass façades
  • glass roofs
  • glass stairs
  • glass balustrades
  • ship building
  • safety glazing
  • all-glass constructions
  • interior design
  • custum-made glass units