Who Is Responsible for EICR in Shared and Multi-Tenanted Commercial Buildings?
In a single-occupancy commercial property, EICR responsibility is straightforward: the owner or tenant arranges and pays for the electrical inspection. However, in multi-tenanted commercial buildings — office blocks, retail parades, industrial estates and converted mills — the question of who is responsible for EICR testing is one of the most common disputes we encounter across Greater Manchester.
Quick answer: In most multi-tenanted commercial buildings, the freeholder or building owner is responsible for EICR testing of common areas and shared electrical distribution, while individual leaseholders or tenants are responsible for the electrical installations within their own demised premises. However, the exact split depends entirely on what the lease says, and many older leases are either silent on electrical testing or ambiguously worded — which is where problems arise.
Understanding EICR responsibility in a multi-tenanted commercial building matters because an overdue or missing Electrical Installation Condition Report can void insurance cover, breach lease covenants and, in the worst case, leave occupants exposed to serious electrical hazards. Below, we break down the legal position, the practical challenges and how to coordinate a building-wide EICR programme that works for everyone.
The Default Legal Position: Freeholder, Leaseholder and Tenant
Under the Electricity at Work Regulations 1989 and the Health and Safety at Work etc. Act 1974, the duty holder for electrical safety is the person who has control of the premises. In a multi-tenanted commercial building, this control is typically split.
The freeholder or building owner is generally responsible for the incoming electrical supply, main distribution board, all shared distribution infrastructure (risers, bus bars, sub-main cables), common-area wiring in corridors, lobbies, stairwells, car parks and plant rooms, and any landlord-retained systems such as emergency lighting and fire alarms.
The leaseholder or commercial tenant is generally responsible for all electrical installations within the demised area of their unit — wiring, consumer units, socket outlets, lighting circuits, fixed equipment, and any alterations they have made to the original installation.
This default position applies where the lease is silent on electrical testing obligations. In practice, however, most commercial leases do address the issue — with varying degrees of clarity.
What Commercial Leases Typically Say About Electrical Testing
Modern commercial leases usually contain a tenant repairing covenant requiring the tenant to keep the demised premises in good repair, with an explicit requirement for periodic electrical inspections every five years. The landlord's covenants will typically cover maintenance and testing of the common parts, with costs recovered through the service charge.
The difficulty arises with older leases, particularly those drafted before EICR testing became standard practice. These may refer to "electrical installations" without defining what is included, or they may not mention electrical testing at all. In such cases, the freeholder and tenants need to agree a practical arrangement — and ideally put it in writing as a licence or side letter — before any building-wide testing programme begins.
If your building has a mix of lease types, we would always recommend taking legal advice on the specific obligations before instructing electrical contractors. Getting this wrong can mean paying for testing twice or, worse, nobody arranging it at all.
Shared Circuits and Sub-Metering Issues
One of the most technically challenging aspects of EICR testing in multi-tenanted buildings is dealing with shared electrical circuits. In many older commercial properties — particularly converted Victorian mills and mixed-use buildings — the original electrical distribution was designed for a single occupier. When the building was later subdivided into multiple units, the electrical infrastructure was not always properly separated.
Common problems we encounter include:
- A single distribution board feeding multiple units — meaning one tenant's consumer unit controls circuits in another tenant's space, and isolating for testing affects neighbouring businesses
- Sub-main cables running through one tenant's demise to reach another — creating access issues for maintenance and testing
- Shared lighting circuits in common areas that are wired from a tenant's distribution board rather than a landlord's board
- Sub-metering arrangements where tenants are billed for electricity through a landlord's main meter, with no clear demarcation of which circuits belong to which unit
- Three-phase supplies split across tenants without proper labelling or documentation
We always recommend that building owners commission a full electrical schematic survey before starting a multi-tenanted EICR programme. This identifies exactly where the demarcation points are, which circuits are shared, and who controls what — saving significant time and avoiding disputes later.
The Practical Challenge of Scheduling Across Multiple Tenants
Every EICR requires circuits to be isolated for dead testing, insulation resistance measurements and RCD trip testing — all of which temporarily disconnect power. For a retail unit, this may mean testing outside trading hours. For an office, it may mean evening or weekend work. For a co-working space or serviced office, it means coordinating around hot-desking schedules and shared meeting rooms.
The building owner or managing agent needs to notify all tenants with reasonable advance notice, agree individual access dates, coordinate the sequence so shared circuits are tested once rather than multiple times, and ensure that testing in one unit does not cause unplanned power outages in another.
We typically allow a minimum of four weeks' notice to tenants and build the testing schedule around the building's busiest and quietest periods. In our experience, the biggest cause of delay is not the testing itself but the access arrangements — particularly when one or two tenants are unresponsive or refuse to cooperate.
Cost Allocation Through Service Charges
In most multi-tenanted commercial buildings, the cost of EICR testing for common areas and shared infrastructure is recovered through the service charge. This is legitimate provided the lease allows recovery of maintenance and testing costs for the common parts, which the vast majority of commercial leases do.
However, disputes often arise over:
- Whether EICR testing counts as "maintenance" or "improvement" — some tenants argue that testing (and especially remedial works) goes beyond routine maintenance and should not be recoverable
- The apportionment method — whether costs are split equally, by floor area, by rateable value or by some other measure
- Remedial works on shared infrastructure — a major consumer unit replacement or rewire of common-area distribution can run into thousands of pounds, and tenants may challenge the cost through the service charge
- Testing of the incoming supply and main distribution — some leases exclude "structure and exterior" costs from the service charge, and tenants may argue that the main electrical intake falls into this category
When One Tenant's Electrical Fault Affects Other Units
In a shared distribution system, a fault in one unit can affect others. A tenant who overloads their supply can trip a shared main breaker, cutting power to the entire building. Degraded wiring in one unit can cause a neutral fault that affects voltage levels across the shared distribution.
In these situations, the building owner has a responsibility to ensure that the shared electrical infrastructure is safe and properly maintained. If a tenant's installation is found to be defective during an EICR and poses a risk to other occupants, the building owner should require the tenant to carry out remedial works within a specified timescale — and the lease should contain forfeiture provisions or step-in rights that allow the landlord to carry out works and recover costs if the tenant fails to act.
This is another reason why a coordinated building-wide EICR programme is far more effective than leaving each tenant to arrange their own testing. A building-wide approach ensures that every unit is tested to the same standard, on the same cycle, with a single contractor who understands the full electrical distribution.
Common Scenarios in Manchester
Greater Manchester has a particularly diverse commercial property stock, and we regularly carry out EICR programmes in buildings that present unique challenges.
Converted Victorian mills — Manchester and the surrounding boroughs are full of former cotton mills that have been converted into office suites, creative studios and mixed commercial units. These buildings often have complex, layered electrical installations built up over decades of subdivision. Original wiring from the conversion may sit alongside more recent additions, with poor documentation and unclear demarcation between units.
Retail parades on high streets — traditional high-street retail parades in areas like Didsbury, Chorlton, Stockport and Altrincham often share a single incoming supply with individual meters for each shop. The common-area lighting (shopfront canopies, shared service yards) may be wired from one tenant's supply by informal arrangement, creating confusion about testing responsibility.
Serviced office buildings — the growing serviced and flexible office market in Manchester city centre means buildings where tenancy can change monthly. EICR responsibility in these buildings almost always sits with the building operator rather than individual licensees, but the high turnover of occupants and constant reconfiguration of space makes scheduling and record-keeping more complex.
Industrial estates in Trafford Park and beyond — industrial units on estates across Trafford Park, Oldham, Rochdale and Bury often share three-phase supplies, with sub-main cables running between units. Heavy machinery and high-current equipment in one unit can affect supply quality for neighbours, and EICR testing needs to account for these interdependencies.
How to Coordinate a Building-Wide EICR Programme
Based on our experience delivering multi-tenanted EICR programmes across Manchester, the most effective approach involves the following steps:
1. Appoint a single electrical contractor for the entire building — not one per tenant. This ensures consistency of testing standards, a single point of contact for the building manager, and efficient scheduling. 2. Commission an electrical schematic survey before testing begins to map the full distribution, identify shared circuits and establish clear demarcation points. 3. Review all leases to confirm who is responsible for what, and agree a cost allocation method before any work is instructed. 4. Issue a formal testing programme to all tenants with at least four weeks' notice, including proposed dates, expected duration and any power interruptions. 5. Test common areas and shared distribution first, so that any faults affecting multiple units are identified and addressed before individual unit testing begins. 6. Carry out unit-by-unit EICR testing in a logical sequence, minimising disruption and ensuring that shared circuits are tested once from the correct origin. 7. Issue all certificates digitally through a centralised system so that the building owner, managing agent and individual tenants each have access to their relevant reports. 8. Schedule remedial works immediately after testing, with pre-agreed costs where possible, so that the entire programme is completed within a defined timescale.
Arrange Your Building-Wide EICR Programme
If you manage or own a multi-tenanted commercial building in Manchester or Greater Manchester and need to arrange EICR testing, we can help. We have extensive experience coordinating building-wide electrical inspection programmes across office blocks, retail parades, industrial estates and converted commercial properties.
Contact us to discuss your building's requirements and receive a clear, fixed-price quotation:
- Phone: 0161 706 1360
- Email: hello@manchestercompliance.co.uk