Foster 503 Armchair

Brand: Walter Knoll

Designer: Norman Foster

Foster 503 Sofa – Timeless Precision and Perfect Proportions. More information

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Delivery 9-12 weeks

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Technical info

Brand	Walter Knoll
Designer	Norman Foster
Depth	90 cm
Height	42 cm / 72 cm
Width	87 cm
Armrests	With armrests
Base	Metal
Material	Leather / Polyurethane / Fabric / Steel / Wooden inner frame
Material	Metal / Leather / Upholstery /
Outdoor	No

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The Foster 503 armchair is defined by its floating base, precisely proportioned back and armrests, and minimalist clarity. Every element is carefully balanced—distinguished by the precision and restraint that characterise the entire Foster 503 range of sofas and armchairs.

Crafted for prestigious interiors and refined retreats, the design exemplifies a pursuit of harmony reminiscent of the Golden Ratio—where aesthetic balance becomes a quiet statement of excellence. With its classic silhouette and exceptional craftsmanship, the Foster 503 line sets a new benchmark in upholstered furniture.

A continuation of Walter Knoll’s long-standing collaboration with architect Lord Norman Foster, the Foster 503 range extends the architectural language of the Foster collections—bringing timeless elegance to modern spaces.

Designer
Norman Foster
* 1935

Foster was raised in Manchester in a working-class family and was intrigued by design and engineering from a young age. His years observing Mancunian architecture subsequently influenced his works, and was inspired to pursue a career in architecture after a treasurer clerk noticed his sketches and interest in Manchester's buildings while he worked at Manchester Town Hall. Foster gained an internship at a local architect's office before...