As remediation and retrofit programmes gather pace across the UK, lift upgrades are increasingly becoming the point at which fire safety, accessibility and heritage protection intersect.
Adding to the complexity, regulations under the Building Safety Act 2022, the Fire Safety Act 2021 and EN 81-80:2019 (Safety Rules for Existing Lifts) mean that systems are under increasing scrutiny and expectations around the performance of vertical transport systems are rising.
Yet in listed and historic buildings, compliance cannot be treated as a purely technical exercise. Any intervention to a lift shaft, car, machine space or associated lobbies may affect fabric that is legally protected under the Planning (Listed Buildings and Conservation Areas) Act 1990 and related policy. In many cases, this means that what appears to be a routine safety upgrade can trigger Listed Building Consent, detailed heritage assessment and engagement with conservation officers and statutory consultees.
The reason is straightforward. In heritage assets, lift shafts and machinery are often integral to the building’s special architectural or historic interest. This means that altering guide rails, forming new openings, introducing fire-rated enclosures or excavating deeper pits can all constitute works that affect significance and even structures within the curtilage of a listed building can fall within scope.
For project teams, this means that – from the outset – lift retrofit must be seen as a coordinated heritage and fire strategy, not just a simple lift replacement. Without early alignment between architects, engineers, lift specialists and heritage consultants, projects can quickly become stalled by redesign, delayed consent, compliance issues, or conflicting professional advice. And the risk goes beyond programme disruption or deferred safety improvements, it can lead to financial, professional and legal consequences.
Fire safety without compromise
From a fire perspective, lifts present a well-understood challenge. The shaft can act as a vertical flue, drawing smoke and hot gases between floors in the event of a fire. Contemporary guidance increasingly expects fire-rated enclosures, protected lobbies and, where evacuation lifts are proposed, secondary power supplies and enhanced resilience. In modern buildings, these requirements are typically addressed through purpose-designed shafts and compartmentation. However, in historic environments, the situation is far more complex.
Forming new fire-rated lobbies may require reconfiguring circulation within constrained floorplates. However, in heritage buildings, upgrading shaft linings to achieve 60 or 120 minutes’ fire resistance may involve introducing new board systems or fire-rated glazing into spaces characterised by ornate plasterwork, timber panelling or decorative ironwork. Even the routing of cabling and containment can become contentious if it risks visible harm to protected surfaces.
Smoke control introduces further considerations. For example, Automatic Opening Vents at the head of a shaft can support smoke clearance, however, introducing them into historic roofscapes may have visual and structural implications. Similarly, aspirating smoke detection systems, which draw air through a pipe network to identify microscopic smoke particles at a very early stage, can offer performance advantages but also require sensitive integration to avoid visual clutter. The specification challenge therefore lies not in the technology itself, but in how discreetly and reversibly it can be installed.
Minimising intervention
Against this backdrop, minimising physical intervention becomes a critical design principle. Fortunately, advances in lift technology offer genuine opportunities to reduce impact on historic fabric. Traditional traction lifts relied on large, heavy motors located in separate machine rooms above the shaft. By contrast, modern machine-room-less systems relocate compact gearless motors within the shaft envelope, which can remove the need for a dedicated machine room and reduce structural loading.
Because contemporary motors are significantly lighter, they often avoid the requirement for new steel beams or substantial reinforcement. Where original guide rails remain plumb and structurally sound, they may in some cases be retained and reused, reducing vibration, drilling and disturbance to any historic masonry. The specification of low-profile components, cleaner microprocessor-based control systems and wireless call technology can all further limit the need to cut into walls or decorative finishes.
Location, location, location
When introducing new lifts into historic buildings, location is an equally important consideration. Back-of-house areas, former service stairs, lightwells or redundant vertical voids can sometimes accommodate shafts with less impact on primary spaces. However, it is critical to map fire, structural and access requirements against a clear Statement of Significance at feasibility stage to ensure that design teams can identify high-sensitivity zones and more adaptable areas in the earliest stages of a project.
This early analytical work often determines whether a proposal is likely to secure consent. In heritage buildings, archaeology may also enter the equation, particularly where new pits are required and ground disturbance is proposed, and desk-based assessments or watching briefs can add to costs and lead to programme implications that need to be factored into early planning. And none of these processes are optional extras; they are part of the statutory framework within which historic buildings are managed.
What can complicate matters further is the reality that professional perspectives do not always align. A fire engineer may advocate a particular compartmentation strategy that a conservation officer views as harmful. One local authority may accept a discreet intervention that another considers excessive. In this context, constructive negotiation and evidence-based assessment are essential and a robust Heritage Impact Assessment, grounded in a clear understanding of significance and public benefit, provides the platform for those discussions.
Retrofit as an integrated exercise
Ultimately, heritage constraints should not be viewed as barriers to compliance. They are design conditions. When lift retrofit is approached as an integrated exercise, rather than a sequence of isolated decisions, it is entirely possible to deliver solutions that enhance safety, maintain accessibility and preserve historic character.
The key is timing. Engaging heritage consultants, fire engineers, contractors and specialist lift suppliers such as PEW Electrical at the earliest stages allows risks to be identified before designs are fixed and budgets committed. It reduces the likelihood of abortive work and creates a coherent narrative for consent. Most importantly, it ensures that safety improvements are delivered in a way that sustains the long-term viability and cultural value of the building.
In heritage retrofit, there is rarely a single perfect answer. There is, however, a right process. And following that process is what ultimately enables compliant, deliverable and publicly acceptable lift upgrades.
