hot dip galvanizing
Issue
Q4 | 25

Diversity by design

Galvanizing is too often filed under “finish”: a practical afterthought, specified late and noticed rarely. Yet in this issue it steps into the light—less as a coating, more as a design position. Across landscapes and typologies, hot dip galvanizing proves how protection can be expressive, and how longevity can sharpen architectural intent….

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On Suffolk’s protected coast, Housestead balances weight and lightness: a cruciform home grounded in robust masonry, and The Sentinel, a slender steel study tower, set out at the compound’s edge. Here the hot dip galvanized exoskeleton is unapologetically readable. Open-riser stairs, braced landings and bolted connections are not concealed but composed, turning construction into character. The benefit is not only visual: in a salt-laden, moisture-rich environment, the continuous coating earns its keep, while the silvery patina catches shifting light and season.

 

In Barking and Dagenham, Industria reframes the industrial shed for denser urban land. Stacked over three levels, 11,500 m² of workspace is stitched together by a galvanised helical vehicle ramp. The metalwork—ramp frames, stairs, rails and trellises, forms a legible working kit. Durability underwrites adaptability and circularity, and it gives the building an honest, industrious identity.

 

At a domestic scale in North London, MVR applies the same ethic with a different register. A lower-ground extension slips beneath the existing house and reaches into the garden, while a planted green roof restores lost landscape. An exposed hot dip galvanised steel frame meets the ground with confidence, keeping the structure slender, clear and low maintenance.

 

Two projects extend the argument further, using hot dip galvanized steel as a unifying envelope for contemporary office and workshop buildings. The façades celebrate the coating’s natural variation, subtle shifts in tone and reflectivity, treated not as inconsistency, but as depth: a material richness achieved without applied finishes.

 

Taken together, these works make a simple case. Hot dip galvanizing is not a hidden insurance policy; it is a material ethic -durability you can see, and stewardship that allows buildings to weather, adapt and endure with clarity.

Iqbal Johal
Editor

Contents

01
High Density
industrial Architecture

Industria, Barking and Dagenham

Industria shows what happens when galvanised steel is placed at the heart of a new industrial architecture – not just as a protective finish, but as a defining design language.

On a tight brownfield site in the River Road Employment Area, Haworth Tompkins and Ashton Smith Associates, working with Be First, have created the UK’s first multi-storey light-industrial scheme of its kind…

02
Energy efficient
home extension

MVR, North London

As returning clients of Knott Architects, this North London family approached them with a familiar challenge: a much-loved home whose fabric, performance and relationship to the garden no longer matched the way they wanted to live. Rather than simply adding more floor area, the project set out to reframe the lower ground floor as a generous, light-filled living level, while using galvanised steel as both a structural workhorse and a refined architectural finish…
03
Steel Observatory
Tower

The Sentinel, Suffolk

Housestead is a low-impact, self-built rural dwelling conceived by its owner-architects as a prototype for regenerative estate-based living. Within the protected landscape of the Suffolk Coast & Heaths AONB/SSSI, the project reclaims a remote site by reworking familiar rural typologies into a precise cruciform plan of four elemental volumes: Living, Sleeping, Working and Utility…
04
Socially inclusive
architecture in Rosenheim

Wendelstein Workshops, Germany

Inclusion may be a political aspiration, yet its translation into built form remains a challenge in many places. The Wendelstein Workshops in Rosenheim, Upper Bavaria, demonstrate how inclusive architecture for people with physical or cognitive disabilities can be delivered with both functional rigour and architectural clarity. Designed by studio lot (Altötting) and opposite office (Munich) in collaboration with hanfstingl architekten (Neuötting), the new building brings together function, structure and materiality to form a coherent and confident ensemble.
05
Integral Facade

Pandion OFFICEHome Zinc, Berlin

Pandion OFFICEHOME Zinc is a commercial office building in Berlin Friedrichshain that brings together flexible workplace requirements with a robust architectural response to a former industrial site. Internally, the building is designed to support adaptable patterns of work. Externally, it presents a durable and restrained façade solution appropriate to its urban context.
06
A Witch’s Broom

Harzer Hexenreich Observation Tower

In the Thuringian area of the Harz Mountains, a new symbol has risen: the Harzer Hexenreich, a roughly 70m high observation tower near Ellrich. Its striking form, an oversized witch’s broom, draws on regional mythology while signalling a clear commitment to durable construction using steel and high-quality corrosion protection…

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