IN Brief:
- Portakabin will deliver a three-storey modular headquarters for Workdry Group in Hampshire.
- The scheme will use 66 bespoke modules and is designed to target BREEAM Excellent and 100% biodiversity gain.
- The project shows modular delivery moving further into corporate estate and workplace construction.
Portakabin will deliver a three-storey modular headquarters for Workdry Group in Hampshire, using 66 bespoke modules to create a new international office building targeting BREEAM Excellent.
The scheme will provide a modern workplace for Workdry, the parent group behind pump and wastewater businesses including Selwood and Siltbuster. Plans include a floor-to-ceiling glazed atrium and reception area, alongside agile and collaborative working spaces for operational and corporate teams.
The project is also targeting 100% biodiversity gain, adding an environmental performance requirement beyond the building fabric. The combination of modular delivery, corporate workplace design, BREEAM ambition, and ecological enhancement gives the scheme relevance beyond a straightforward office commission.
Portakabin’s appointment reflects the continuing movement of modular construction from temporary accommodation and rapid-response buildings into permanent, specification-led commercial and operational estates. Modular systems have long been used in education, healthcare, site accommodation, and public-sector estate works, but clients are increasingly assessing offsite delivery for headquarters, laboratories, operational hubs, and specialist workplace assets.
The Workdry scheme follows a broader shift towards controlled offsite manufacturing where programme certainty, repeatability, and quality control have clear value. Engineered modular systems are also gaining traction in more technical settings, including energy and infrastructure-related construction, where predictable delivery can reduce exposure to site constraints.
Headquarters projects create a different test for modular construction. The building must perform as a workplace, corporate asset, and long-term estate investment, rather than simply proving that modules can be installed quickly. Daylight, layout flexibility, acoustics, finishes, thermal performance, air quality, circulation, and adaptability all influence whether the completed building meets expectations.
The planned atrium adds complexity because it pushes the design beyond repeated cellular accommodation. Large glazed spaces require careful coordination of structure, thermal performance, ventilation, solar gain, smoke control, fire engineering, movement, and the interfaces between modular units and more open architectural elements.
BREEAM Excellent targeting raises the technical bar further. The assessment route is likely to influence energy modelling, materials selection, water use, ecology, transport, waste, health and wellbeing, commissioning, and management processes. Modular construction can support some of those goals through reduced site waste, factory quality control, and shorter on-site programmes, but certification depends on evidence, design discipline, and commissioning performance.
The biodiversity target reflects a wider change in project briefs. Corporate estate clients are increasingly expected to demonstrate that new development does not stop at efficient buildings. Landscape, habitat creation, drainage, planting, maintenance, and long-term ecological management are now part of the delivery conversation from the early design stages.
Workdry’s business context also gives the headquarters an operational dimension. Pumping, water management, and environmental services are closely tied to construction, utilities, infrastructure, and emergency response. The new building will support the management and coordination behind field operations, technical teams, equipment deployment, and service delivery.
For contractors and clients considering offsite methods, the project will add to the evidence base around where modular delivery provides the strongest value. Programme certainty, reduced site disruption, repeatable production, and quality control are persuasive where the brief is stable and early design decisions are well coordinated. The model becomes harder when late changes, complex interfaces, or unresolved specifications undermine factory-led delivery.
Portakabin’s delivery will therefore be judged on both construction efficiency and completed quality. If the scheme meets its environmental, workplace, and programme objectives, it will strengthen the case for modular delivery in corporate estate projects where clients need certainty without stepping back from design quality or sustainability performance.
