How retrofitting is redefining the future of commercial buildings

1 June 2026

Across the UK, commercial property owners are facing a crossroads. Darryl Gregory explores how ageing building stock, tightening energy efficiency regulations, and shifting tenant expectations are reshaping priorities faster than traditional retrofit methods can keep up with.

Given that almost 70% of UK commercial buildings were constructed before 2000, a significant proportion now require modernisation to remain viable in a low carbon future. Retrofitting is emerging not as a stop gap, but as the strategic route to transforming outdated buildings.

Working with many organisations on this transition has shown us that retrofit-ready technologies are now delivering measurable value, often without the disruption that would have made projects like this previously unviable. Today’s solutions make it possible to reuse existing cabling, equipment rooms and even legacy controllers while bringing buildings into the era of IP-native, cloud-ready performance, all with far less disruption, cost and risk than traditional refurbishment.

Commercial buildings constructed at the turn of the millennium or earlier were not designed to meet the demands of today’s digital-first operations, hybrid working models, or the increasingly stringent carbon performance standards shaping the UK property landscape.

New developments alone cannot meet the scale or urgency of today’s building performance challenges, and demolition or full redevelopment is often neither practical nor financially viable. As older commercial properties face rising vacancy rates, tighter regulatory requirements, and evolving occupier expectations where comfort, air quality, and seamless digital services are now fundamental, retrofitting has become the most pragmatic, economically sound, and future-ready path forward.

Future ready

A common misconception is that a smart building must be newly built within the last 20 years or undergo a full refurbishment. In reality, significant performance and digital gains can be achieved by upgrading existing systems. Today’s technologies make it possible to retain and optimise much of the existing infrastructure, delivering advanced functionality with minimal disruption.

Technologies such as long reach Ethernet and IP-native controllers allow buildings to move from legacy setups with increased costs to modern, interoperable networks without opening ceilings, replacing cabling or tenants being unable to use the premises during works. This significantly lowers project costs.

The adoption of open protocols and interoperable platforms helps mitigate reliance on proprietary vendor ecosystems that may restrict upgrade pathways and contribute to higher long-term costs. This shift gives owners access to a broader ecosystem of solutions, enabling greater choice, competitive procurement, and the integration of best-in-class technologies. It also allows them to leverage advanced analytics and energy optimisation tools while positioning their assets to adopt emerging innovations such as cloud services and AI-driven automation.

Ultimately, smart buildings are not created by starting again, but by intelligently upgrading the DNA of the systems already in place.

As commercial buildings become more connected, it is increasingly important that the controllers operating them are secure and can be kept up to date with the latest firmware and software. Distech Controls’ IP-native building controllers are designed to support secure deployment and ongoing updates, helping owners and operators patch vulnerabilities as threats evolve and reduce cyber risk, particularly in buildings where legacy management systems may still rely on outdated or insecure protocols.

Sustainability compliance

Retrofitting is an effective way to meet sustainability and carbon reduction goals, allowing building owners to replace outdated control systems with high efficiency, interoperable alternatives that help to reduce energy consumption, lower emissions and support compliance with evolving UK regulations. Crucially, retrofit-ready technologies enable faster, low disruption installation through modular components and cable reuse approaches, minimising downtime and inconvenience for buildings that remain fully occupied or operate on tight schedules.

The UK property landscape is entering a defining period, with the next five years likely to determine which buildings remain attractive, efficient and investable and those at risk of being left unoccupied. Retrofitting consistently proves to be an effective way for older buildings, not only to stay viable but to compete with, and often outperform, newer stock. With energy prices still volatile, carbon commitments accelerating and occupiers seeking healthier, more personalised workplaces, investors are increasingly prioritising sustainability and resilience. In this environment, retrofit-ready smart building technologies offer a high impact, high ROI route to securing long-term value.

Working together

A key differentiator for Distech Controls is that it takes an open, partner-centric approach, enabling building owners to collaborate with the right expertise for each project’s specific needs. This openness gives building owners confidence that they can move from legacy to future-ready with agility and continuity. This model delivers the agility, continuity and long-term adaptability essential for upgrading buildings that must remain fully operational throughout the process.

Retrofitting is not a compromise but can be a strategic investment in the future of commercial property. While legacy systems can create unnecessary complexity, cost and vulnerability, modern cloud-enabled, open-standard controls can provide unified, adaptable networks that can evolve with tomorrow’s technology. As the UK moves rapidly toward a low-carbon, digitally driven built environment, retrofitting may determine which buildings remain competitive and relevant. 

Darryl Gregory
VP of sales for EMEA at Distech Controls