THE ERIC RECKONING · Article 7 of 8
Flying Blind: How the Backlog Trajectory Is Driving Decisions It Cannot Support
NHS Estate Directors · Capital Planners · FM Suppliers · Policy Teams · NHS Board Members
The NHS maintenance backlog has grown 145% in six years. That trajectory is the primary evidence base for the NHS capital investment case. It now directly influences the regional distribution of the £6.75 billion Estates Safety Fund. A parallel process is underway using ERIC estate area data to identify hospital space for repurposing or disposal to fund the community shift. This article examines both dynamics and what they mean for trusts and FM suppliers operating in this environment.
The Trajectory everybody cites
The 145% increase in NHS maintenance backlog over six years is cited to justify the £30 billion five year capital investment commitment, the New Hospital Programme rationale, and the Estates Safety Fund allocation methodology. The deterioration of NHS buildings is real and the investment case is sound. Lord Darzi’s finding of a £37 billion capital shortfall relative to peer countries is independent corroboration.
But the specific trajectory figure of 145% is not a precise measurement of physical deterioration. It combines real physical decline with the maturation of how trusts assess and report condition, and with definitional changes across the period. NHS England acknowledges this: the data quality statements for ERIC are explicit that data should not be presented alongside earlier years because year on year comparability cannot be assumed.
Parliament uses the 145% trajectory to debate the future of the NHS. The statisticians who produce the data have attached a warning label saying: do not compare these years. The policy is built on a trend line that the data quality documentation has formally caveated. That is not a reason to stop investing. It is a reason to be precise about what the specific figure measures, and to build capital programmes on physical evidence rather than on a trajectory that combines real deterioration with methodology in motion.
Parliament uses the 145% trajectory to debate NHS capital investment. The statisticians who produce the data have formally caveated that it should not be used as a time series. The policy is built on a trend line the data scientists have disowned.
The UMF: how ERIC data is being used to identify hospital space for disposal
The Utilisation and Modernisation Fund is £426 million over four years, with up to half supporting 40 to 50 neighbourhood health centres through refurbishment of existing buildings. The Capital Guidance is explicit about the mechanism: the shift to community is expected to be funded partly through disposals and repurposed estate. ICBs and providers are instructed to consider opportunities to maximise utilisation of estate, including use of void space and drive disposals.
This creates a direct risk for acute trusts that ERIC has not previously generated. If a trust&’s ERIC return shows significant void or underutilised clinical space, that data is now visible to ICBs as a basis for identifying hospital estate available for repurposing or disposal. A trust that accurately reports void space in its ERIC return may find that data used by its ICB as a roadmap for which hospital wings to decommission or transfer to community health use.
The shift to community is not just a policy aspiration. It is a capital mechanism with real estate consequences. Poor or inconsistent ERIC reporting of void and underutilised space is now being used as a planning input for decisions about which hospital estate is surplus to acute need. Trusts whose ERIC data accurately reflects genuine clinical space pressures are in a stronger position to resist decommissioning pressure than trusts whose data is incomplete or inconsistently reported.
For FM suppliers contracted to maintain hospital estate: a reduction in the acute footprint as space is transferred to community health use will change the scope of maintenance contracts mid term. Understanding which trusts have significant reported void space in their ERIC returns, and how ICBs are interpreting that data in their utilisation strategies, is an intelligence question that ERIC's public data can partially answer.
The Estates Safety Fund allocation and what drives it
The Estates Safety Fund allocates £750 million per year to NHS regions for estates safety work. The Capital Guidance states that allocations are being made at regional level based on the reported relative levels of critical infrastructure risk across the country on the most recent published ERIC data.
The Estates Safety Fund is therefore also driven by ERIC CIR scores, operating in parallel with the operational capital formula. A region with higher aggregate CIR across its trusts receives a larger share of the safety fund. The same self reporting, same validation limitations, and same incentive dynamics that affect the operational capital formula apply equally to the safety fund allocation.
Together, the operational capital formula (15% CIR weighted) and the Estates Safety Fund (CIR driven at regional level) mean that ERIC Critical Infrastructure Risk data now influences two of the three major capital streams available to NHS trusts. The quality and accuracy of the CIR field is no longer a data governance question. It is a capital strategy question.
| ERIC trajectory headline | The reckoning |
|---|---|
| £15.9 billion backlog 2024/25 | Measured to Condition B minimum only. Not restoration to fit for purpose or modern clinical standard. |
| 145% growth over six years | Combines physical deterioration with methodology maturation and definition changes. Year on year comparison formally caveated by NHS England. |
| 28% increase in high risk backlog in one year | Partly real deterioration, partly Condition C assets degrading upward as investment clears the top tier without maintaining the middle. |
| Mandatory CEO sign off | Self reported by the organisation whose capital allocation the CIR figure now directly influences under the 85/15 formula. |
| National coverage | Excludes all primary care. Based on Condition B floor. Void space data now also informing ICB disposal and repurposing decisions. |
What this means for FM contract pricing
For FM suppliers pricing long term NHS contracts, the trajectory argument has a direct commercial implication. A multi year FM deal priced against the estate's ERIC reported backlog is priced against a figure that combines physical condition with assessment methodology. The reactive demand that materialises during the contract reflects physical condition. The contract was priced against a number that also reflects methodology.
The Condition C creep dynamic examined in Article 2 compounds this. Significant and moderate risk assets degrading toward high risk during the contract term will generate reactive demand that exceeds what the mobilisation day backlog figure suggested. The trajectory figure is useful context. It is not a substitute for an independent condition assessment of the specific estate being contracted, with a reactive demand model built from actual maintenance history rather than from a
national aggregate.
The UMF disposal dynamic adds a further variable. An FM contract for a hospital estate that subsequently loses clinical wings to community repurposing will see scope reduction mid contract. The contracts that manage this transition well are the ones where the supplier understood the trust’s ERIC void space position and the ICB’s utilisation strategy before mobilisation.
The risk
Capital programmes justified by the 145% backlog trajectory are built partly on a figure that combines physical deterioration with methodology maturation. The trajectory direction is right. The precise figure is not reliable as a time series. And the UMF is now using ERIC utilisation data to identify hospital estate for decommissioning, adding a new dimension of estate risk that FM contract pricing models have not previously needed to address.
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