On HQ Clayworks Project - Clayworks

On HQ

London

Commercial Projects

Global sportswear brand On partnered with M Moser Associates to create its new 25,000 sq ft London office. In a workspace designed to inspire and adapt, our Rammed Earth clay plaster sits seamlessly within the architectural language, offering both visual impact and a grounding presence that reflects On’s ethos of innovation grounded in nature.

At its heart stands a sculptural staircase, finished in our hand-applied Rammed Earth clay plaster, a tactile centrepiece that connects the two levels and evokes a cocooning, cave-like feel.

Inspired by the geology of the River Thames Basin, our Rammed Earth finish was carefully layered by hand to create a gradient effect that subtly lightens as it ascends, echoing the natural stratification of earth.

Alongside our natural clay plaster, M Moser’s sustainability team carefully selected other low-carbon materials like Marmoleum flooring—which absorbs more CO₂ than it emits, ethically sourced timber and low-VOC fabrics, each selected based on life cycle analysis.

“We specified the Clayworks rammed earth finish after an in-depth review of several options. It offered the lowest carbon impact across material composition, transport and application. Working with a UK supplier meant we could use locally sourced clay from southern England, which supported the design concept and reduced emissions. Its natural pigments gave us freedom to match the visual intent while staying true to the raw qualities of rammed earth. It was the most sustainable choice without compromise.” Suzanne Ries, Sustainability Specialist, M Moser.

Finishes

Rammed Earth

Custom Colours

Architects

M Moser Associates

Applicator

Guy Valentine

Awards

Mix Interiors Project of the Year 2025 – Workplace Interiors 15-30k sq ft