How Lifts in Existing Buildings Are Planned

A lift is often treated as a fixed feature of a building until capacity, reliability or access requirements expose its limitations. Planning lifts in existing buildings is therefore rarely a simple replacement exercise. The work must accommodate the structure that is already there, maintain the building’s operation where possible, and deliver a system suited to the people, goods and services moving through it.

For facilities managers, property owners and project teams, the strongest outcomes start with a clear assessment of what the building needs now and how that need may change. A well-planned commercial lift project can improve accessibility, reduce disruption caused by breakdowns, support refurbishment plans and strengthen the long-term value of the property.

Start with the building, not the lift catalogue

Existing buildings present constraints that do not appear on a new-build drawing. The available lift shaft may be narrow, shallow or irregular. Headroom and pit depth can be limited. Structural openings, fire compartments, electrical supplies and access routes may all affect the feasible solution.

A detailed site survey is the basis for every sound decision. It should establish the dimensions and condition of the shaft, landing entrances, machine space or machine-room-less arrangement, structural construction, power supply and drainage. The survey also needs to consider how equipment and materials will reach the work area. In a busy hospital, school, office or retail property, delivery routes and safe segregation can be as important as the lift specification itself.

Usage data adds the operational context. A passenger lift serving a low-rise office with predictable peaks has different requirements from a public building receiving visitors throughout the day. Where a lift also carries catering trolleys, clinical equipment, stock or cleaning machinery, car size, loading and door configuration require particular attention. A goods lift may be the more appropriate system where freight movement is frequent or heavy, rather than trying to make a passenger lift perform a task it was not designed for.

Deciding between modernisation, replacement and a new installation

Not every ageing installation requires a complete lift replacement. Modernisation can be an effective route where the lift car, guide rails and main structure remain suitable, but the controller, drive, door equipment or safety components have become unreliable, obsolete or inefficient.

A modernisation project may improve ride quality, levelling accuracy, door performance and fault diagnostics while retaining suitable elements of the existing installation. It can also bring the lift closer to current expectations for accessibility, including clearer controls, visual and audible indication, improved lighting and appropriately sized entrances. The precise scope should follow a technical condition assessment rather than assumptions based on the lift’s age alone.

Full replacement is often preferable where repeated faults are affecting building operations, key components are no longer supported, the capacity is wrong for current demand, or the existing shaft arrangement prevents meaningful improvement. It may also be the best opportunity to change from a hydraulic system to a traction lift where traffic levels, travel distance and energy use support that choice.

Hydraulic lifts can remain appropriate in lower-rise buildings, particularly where a compact arrangement and specific site conditions favour the technology. Traction lifts are commonly selected for higher travel, more intensive use and efficient performance. There is no universal answer: duty, building geometry, energy expectations, maintenance access and capital planning all influence the decision.

Creating access where no lift currently exists

Installing a lift into a building without an existing shaft is a more involved construction project, but it can transform the usability of commercial and public-sector premises. Typical approaches include constructing a new internal shaft, forming an external lift tower, or adapting an underused part of the building such as a circulation space or service area.

The appropriate option depends on the layout, planning considerations, heritage constraints, fire strategy and available structural support. An external shaft can preserve internal floor area, but it may introduce questions around façade appearance, foundations, weather protection and the connection points at each floor. An internal installation can be visually integrated into a refurbishment, though it may require carefully phased structural work and temporary changes to circulation routes.

Accessibility must be considered as a complete journey, not just a lift car. A new accessibility lift should connect usable routes with suitable landing space, door clearances and controls. Where the building’s role requires it, the design may also need to consider evacuation arrangements. An evacuation lift is a specialist system, designed as part of a wider fire and evacuation strategy, with requirements that go beyond a standard passenger lift. Early consultation with the responsible fire professionals and project designers is essential.

Compliance must be built into the specification

Lift works in existing buildings sit within several overlapping responsibilities. The project team needs to account for relevant building regulations, accessibility duties, fire safety requirements, electrical works, planning conditions where applicable, and the ongoing obligations associated with lift operation and maintenance.

The Lifts Regulations and the supply of compliant equipment are central considerations for a new installation or substantial alteration. However, compliance is not achieved simply by selecting a marked product. The installation, interfaces with the building, safety devices, documentation and handover process all matter. A competent lift contractor should explain the scope clearly and identify where responsibility rests with the client, principal contractor, designer or other dutyholder.

For occupied buildings, safe working arrangements need equal attention. This includes isolation procedures, controlled access to the shaft, protection of the public, dust and noise management, and a realistic plan for periods when the lift is unavailable. In properties with only one lift, downtime is a significant operational risk. Phasing works outside peak hours, retaining temporary service arrangements where viable, and communicating clearly with occupiers can make the difference between a controlled project and a disruptive one.

Specify for real traffic, not just minimum dimensions

The lift’s rated load and car dimensions should reflect actual use. A lift that technically fits within a shaft but cannot accommodate a wheelchair user, hospital bed, trolley or regular delivery load will quickly become a constraint. Door width, opening speed, stopping accuracy and car protection all influence how effectively the system serves the building.

Traffic planning is particularly valuable in buildings with concentrated demand. Offices may experience strong morning, lunchtime and end-of-day peaks. Education buildings have timetable-driven movement. Healthcare environments require reliable access for patients, staff and equipment, often with a need to prioritise particular journeys. Hotels and retail premises must balance public use with servicing requirements.

Controls should be selected with the same discipline. Destination control may help in larger, higher-traffic properties, while a conventional collective control arrangement can be more appropriate for a smaller building. Access control integration, out-of-hours security, floor restrictions and fire service functions should be agreed before installation rather than added as late changes.

Plan the project around continuity of service

The practical challenge of lifts in existing buildings is usually not fitting equipment into a shaft. It is carrying out the work without compromising safety or bringing the building’s core activity to a halt.

A project programme should identify surveys, design approvals, lead times, enabling works, structural alterations, installation, testing, inspection and handover. It should also allow for discoveries that are common in older buildings, such as undocumented services, unsuitable structural finishes or shaft water ingress. Allowing contingency is sensible project management, not pessimism.

Communication should be specific. Occupiers need to know which lift is affected, when access will change, what alternative route is available and who to contact if a critical movement is required. In healthcare, education and public buildings, this information may need to reach several operational teams, not just a central building manager.

Protect the investment after handover

A new or modernised lift needs planned maintenance that reflects its duty and environment. High-use passenger lifts, goods lifts and systems exposed to dust, moisture or heavy loading may require more frequent attention than lightly used office installations. Maintenance visits should focus on condition, adjustment and early fault prevention, not merely responding after a failure.

Asset records are equally valuable. Keep the technical file, test information, maintenance history, component details and records of alterations accessible to the people responsible for the building. This supports future budgeting and avoids unnecessary uncertainty when parts, upgrades or further refurbishment are considered.

Swallow Lifts approaches commercial lift projects by combining site-specific engineering with practical planning for occupied buildings. The aim is not simply to install equipment, but to provide vertical transportation that remains safe, dependable and appropriate for the building’s daily demands.

The right lift solution should make movement through a building feel routine for users and manageable for the teams responsible for it. That outcome begins with an honest survey, a specification based on real use and a delivery plan that respects the building already in operation.