The Defence Workplace: From Security to Strategic Capability

Our view: Defence workplaces have spent decades being designed to protect capability. The next generation needs to be designed to create it, with security as the starting point rather than the finish line. At Isembard, that meant delivering a 38,000 sq ft London headquarters, including a CNC power upgrade, in 12 weeks.

Key Takeaways

• Security is the starting point of a defence fit-out, not the finish line: NPSA guidance and SC-cleared teams set the floor, and the design work starts there.
• Zone by sensitivity. Put the tightest controls where classified work happens, and give everyone else daylight, decent breakout space and somewhere to use a phone.
• Defence growth is often driven by contract awards rather than long-term capital plans, so a facility has to adapt with very little notice and without stopping production.
• Speed is a capability in its own right: Habit Action delivered Isembard's 38,000 sq ft London headquarters, including a CNC power upgrade, in a 12-week programme.
• The 2025 Strategic Defence Review's emphasis on AI, cyber, digital engineering and advanced manufacturing means more multidisciplinary work inside secure perimeters, and more competition for the same engineers.

The Defence Workplace of 2035

What if we've been looking at one of the UK's fastest-changing sectors through the lens of the past?

Having delivered advanced manufacturing workplaces for many years, we've seen the sector evolve long before today's renewed investment. The UK's Strategic Defence Review doesn't introduce a new direction, it accelerates one that was already underway.

Its emphasis on artificial intelligence, cyber capability, digital engineering, advanced manufacturing and closer collaboration confirms what we've been seeing across the projects we deliver. Defence is becoming one of the UK's fastest-evolving knowledge industries.

For decades, defence estates have been designed around resilient security and operational effectiveness. Those priorities remain fundamental and always will. But today's defence organisations also need to accelerate research and development, increase manufacturing capability and attract highly specialised technical talent, all while responding to new programmes at greater speed than ever before.

The conversation is no longer just about creating secure environments. It's about creating secure environments that actively enable capability.

Are we still designing defence workplaces as secure facilities, when we should be designing them as secure innovation environments?

We believe that means the workplace is no longer simply somewhere work happens. It has become part of an organisation's ability to innovate, manufacture, collaborate and adapt.

And as defence continues to evolve, that capability will become a competitive advantage in its own right.

A Different Kind of Defence

The headlines surrounding the Strategic Defence Review have understandably focused on rising defence budgets and renewed investment. But the bigger story isn't simply how much is being invested. It's what the sector is becoming.

Today's defence organisations are building capabilities in artificial intelligence, cyber security, digital engineering and advanced manufacturing. Success depends not only on military expertise, but on bringing together engineers, software developers, researchers and operational specialists to solve increasingly complex problems.

At the same time, organisations are under pressure to increase manufacturing capability, accelerate research and development, and respond quickly to changing operational requirements. Unlike many industries, growth is often driven by contract awards rather than long-term capital investment. New programmes can require additional manufacturing space, specialist environments or expanded facilities with very little notice.

We're seeing that reflected across the projects we deliver. Defence organisations aren't simply looking for more space. They're looking for environments that can increase production capacity, support innovation and adapt quickly, all while manufacturing, engineering and secure operations continue uninterrupted.

It's no longer just about designing a better building. It's about creating environments that help organisations respond faster whilst expanding, keeping disruption to a minimum without compromising security or resilience.

The conflict in Ukraine has accelerated this shift further. Equipment and technologies proven in operational environments are increasingly shaping procurement decisions, creating additional pressure on manufacturers to bring new capability online at pace. Speed is no longer just a project objective. It's becoming a competitive advantage.

At the same time, defence organisations are competing for the same engineers, AI specialists, cyber experts and digital talent as some of the UK's leading technology and manufacturing businesses. Research from Leesman and Gensler consistently shows that workplace design influences collaboration, innovation and employee experience. While defence has unique security requirements, the relationship between workplace and organisational performance remains the same.

The organisations that recognise that shift earliest won't simply create better workplaces. They'll create stronger capability.

From Security to Capability

Security has always been the foundation of defence workplaces, and it always will be.

Every project must meet stringent operational and security requirements, whether that's working with SC-cleared personnel, operating within secure environments or delivering facilities in line with National Protective Security Authority (NPSA) guidance. These aren't additional considerations; they're fundamental to how defence environments are designed and delivered.

But security alone is no longer enough.

As defence organisations become more reliant on digital capability, advanced manufacturing and multidisciplinary collaboration, the role of the workplace is expanding beyond protection alone.

Leaders are no longer asking whether their environments are secure. They're asking whether those environments can also support faster research and development, increase manufacturing capacity, attract specialist talent and adapt as operational priorities evolve.

Security is no longer the destination. It's the foundation.

It's no longer simply a secure container for important work. It's part of an organisation's operational capability.

We've seen first-hand that the biggest challenge often isn't designing a secure environment. It's delivering one while manufacturing, engineering and critical operations continue around it. Defence organisations rarely have the luxury of stopping production while facilities are upgraded. Projects need to be carefully phased, disruption kept to a minimum and every decision planned around business continuity.

In operational environments, every day of downtime has a cost.

That's why flexibility has become just as important as resilience. As new programmes are secured, production increases and technologies evolve, facilities need to adapt without requiring extensive redevelopment or disrupting ongoing operations.

The question is no longer how we design secure defence workplaces.

It's how we design secure environments that enable innovation, increase capability and allow organisations to respond quickly to whatever comes next.

The Workplace as a Strategic Asset

The defence workplace is no longer just a place where work happens. It's becoming part of how organisations deliver capability.

Success is no longer measured solely by occupancy, efficiency or even employee experience. Increasingly, it's measured by how effectively an environment supports the people, technologies and processes behind modern defence.

Can it help multidisciplinary teams solve complex problems more quickly?

Can it bring together engineers, software developers, researchers and operational specialists while maintaining the highest levels of security?

Can it support advanced manufacturing, accelerate research and development, and adapt as programmes evolve?

Those are no longer workplace questions alone. They're business questions.

The organisations that succeed over the next decade won't simply be those investing in the most advanced technologies. They'll be the ones creating environments where those technologies, and the people behind them, can perform at their best.

That means designing workplaces and specialist environments that can scale and respond to increasing demand and evolve without disrupting critical operations. It means creating places that support collaboration without compromising security, and innovation without sacrificing resilience.

Speed has become a strategic capability in its own right. Bringing new manufacturing facilities, laboratories or specialist environments online months earlier doesn't simply shorten a construction programme. It allows organisations to begin delivering against contracts sooner, respond faster to operational demand and strengthen long-term resilience.

Looking Ahead

The defence sector has always demanded securely resilient and highly specialised environments. That hasn't changed.

What has changed is the pace of transformation.

As organisations respond to new technologies, evolving geopolitical pressures and increasing demand, the environments supporting them have a bigger role to play than ever before. They need to accelerate research and development, increase manufacturing capability, support collaboration and adapt quickly to new programmes, all while maintaining the highest levels of security and minimising operational downtime.

That's the shift we've been seeing across the defence projects we deliver.

The conversation is no longer just about creating secure workplaces. It's about creating secure environments that actively enable capability. Whether that's bringing manufacturing facilities online faster, adapting occupied estates around live operations or designing spaces that help specialist teams collaborate, the workplace has become an integral part of organisational performance.

For decades, defence workplaces were designed to protect capability.

The next generation will be designed to create it.

FAQs

What makes a defence workplace different from a standard office fit-out?

In a defence fit-out, security is the starting point. Every decision has to work within the client’s security requirements, which typically means following National Protective Security Authority (NPSA) guidance and using SC-cleared delivery teams. The design work starts from there. Defence workplaces increasingly combine advanced manufacturing and engineering space with secure offices, so the building has to support very different kinds of work at once.

How is the Strategic Defence Review 2025 changing defence workplaces?

The 2025 Strategic Defence Review places heavy emphasis on AI, cyber, digital engineering and advanced manufacturing. In practice, that means more multidisciplinary teams working inside secure perimeters. It also means more pressure to bring new manufacturing and lab space online quickly.

Can a secure defence building also be a good place to work?

Yes. The key is to zone by sensitivity. The tightest controls go where classified work happens, and the rest of the building can be designed like any good workplace, with daylight and proper breakout space. This helps with recruitment, because defence organisations compete with tech and manufacturing businesses for the same engineers and cyber specialists.

Do fit-out contractors need security clearance for defence projects?

Usually, yes. The level of clearance depends on the site and the information involved, and many defence projects require SC-cleared personnel. Habit Action works with SC-cleared teams and delivers in line with NPSA guidance. Check the clearance requirements early, because vetting takes time and can affect the programme.

Can a defence facility be upgraded without stopping production?

Yes, with careful phasing. The works are planned around business continuity so that manufacturing and secure operations keep running, with live areas kept separate from construction zones. We cover this in more detail in How Defence Manufacturers Can Expand Without Stopping Production.

How quickly can a defence facility be delivered?

It depends on the scope and security level, but fast delivery is achievable with early planning. Habit Action delivered Isembard’s 38,000 sq ft London headquarters, including a CNC power upgrade, in 12 weeks. Bringing a fit-out partner in at the briefing stage lets vetting and long-lead items run alongside the design work.

How should defence organisations plan space when growth depends on contract wins?

Plan for change rather than a fixed headcount. New programmes can arrive with little notice, so facilities work best when they can flex. Adaptable layouts and spare services capacity mean a new contract doesn’t trigger major redevelopment.

What should we have ready before speaking to a fit-out partner?

An outline is enough to start. It helps to have a sense of your headcount and timescales, plus your security requirements or a contact for whoever owns them. Your partner can help shape the rest of the brief from there.