England’s Local Growth Plans: portfolio discipline is the test of delivery

The strategic task is selection, not representation

**Thesis.** England’s Local Growth Plans should be treated as portfolio-management instruments rather than catalogues of locally desirable schemes. That is the central test of the new framework: whether Mayoral Strategic Authorities (MSAs) can allocate scarce development capacity to the propositions most likely to alter local economic outcomes.

This matters now because the 2026 guidance places Local Growth Plans at the centre of a ten-year conversation between MSAs and government on local economic conditions, shared priorities and investment opportunities. It advises authorities to identify four to ten investment-focused opportunities rather than reproduce every scheme in their wider project universe. The statutory framework for mayoral combined authorities similarly provides for plans addressing local economic conditions, agreed priorities and projects for public or private investment (MHCLG, 2026; UK Parliament, 2026) ↗ ↗.

**Interpretation.** A shorter list is not inherently more strategic. It becomes strategic only when it reflects choices between competing uses of limited attention, land assembly capability, technical expertise, delivery partners and political capital. A plan that includes every worthwhile ambition can avoid difficult decisions while creating the impression of momentum.

The relevant question is therefore not simply whether an intervention has support or an attractive economic narrative. It is whether advancing it now is more valuable than advancing another proposition, resolving an enabling constraint, or retaining the option until evidence improves. A town-centre scheme, employment site, transport connection and skills programme can all be worthwhile in isolation. Yet each may fail to generate its intended value if customer demand, utilities, workforce capacity, revenue funding or long-term stewardship is absent.

**Sanctuary judgement.** The strongest plans will make these constraints visible. They will distinguish between a strategic ambition, an opportunity under development and an investment-ready proposition. That distinction is not bureaucratic caution; it is how authorities avoid spending scarce capability on schemes whose critical assumptions have not been tested.

An investable pipeline needs two levels of discipline

**Evidence.** The guidance expects Local Growth Plan opportunities to be deliverable and achievable, with the potential to crowd in private investment directly or indirectly. It points to secured enablers, or a credible route to them, such as planning permissions, delivery partners and supporting infrastructure including grid connections. It also recognises that some projects can attract private capital while others need public commitment alongside private investment to become viable (MHCLG, 2026) ↗.

**Interpretation.** These expectations draw an important line between a prospectus and a pipeline. A prospectus can usefully introduce a broad local opportunity. A pipeline must explain how that opportunity can become an asset, service or operating business on a plausible timetable. It therefore needs to expose unresolved risks as well as expected benefits.

MSAs should consequently operate two connected but distinct systems. The public pipeline should be selective and intelligible: it should state the economic problem, proposed intervention, current maturity, principal dependencies, next decision and nature of the funding or delivery ask. This gives investors, communities and government a credible basis for engagement without presenting contingent ideas as settled commitments.

Behind it, an internal portfolio register should be wider and more candid. It should record alternative options, evidence quality, land and infrastructure dependencies, commercial assumptions, risk owners, delivery routes and reasons for pausing or retiring proposals. This protects optionality while allowing the public plan to remain focused.

The distinction matters particularly for projects with complex operating requirements. Housing-led growth may rely on remediation, utilities and transport. Manufacturing space may require power capacity, specialised labour and a viable supplier base. High-street capital works may depend on occupier demand and an affordable long-term management model. In these cases, the visible construction project is only one component of the economic intervention. Treating it as the whole proposition can lead to completed assets without the activity needed to produce local growth.

Portfolio logic should reveal complementarities, not shelter weak projects

**Evidence.** The Green Book frames value for money as a balanced judgement, incorporating monetisable and non-monetisable effects, risk, distributional impacts and place-based considerations. It expects project objectives to flow from programme or portfolio objectives. Treasury’s review of the Green Book describes place-based business cases as a means of assessing complementary interventions—such as housing, transport and skills—within a coherent framework (HM Treasury, 2026) ↗ ↗.

**Interpretation.** This is highly relevant to local growth. The value of employment land may depend on transport access; transport may have greater employment effects where residents can access relevant skills; affordable workspace may only support entrepreneurship if management, networks and finance are available. Assessing each element as a wholly separate competitor can understate the value of a coordinated package.

But portfolio reasoning has a hard limit. It cannot become a rhetorical shield for propositions that lack a sponsor, viable delivery model, affordability assessment or route through approvals. Complementarity should be stated as a testable mechanism: which intervention enables another, when the effect is expected to occur, who controls the dependency and what happens if it does not materialise.

There is also a counterargument worth taking seriously. A place-based case can become so broad that it masks trade-offs between neighbourhoods, sectors or groups. The answer is not to abandon a portfolio perspective, but to preserve proposition-level challenge within it. Authorities should ask whether each component is necessary, whether a lower-cost alternative could achieve the same enabling effect, and whether claimed benefits would happen without public intervention.

**Sanctuary recommendation.** Use the portfolio as the unit for strategic choice, while keeping individual interventions subject to deliverability, additionality and value-for-money challenge. That approach is more rigorous than both a disconnected project list and an unfalsifiable vision for a place.

Five decisions turn a pipeline into an operating framework

**Sanctuary recommendation.** Each opportunity in the internal register should pass through five recurring decisions. The evidence required should be proportionate to maturity and scale, but the questions should not disappear as a scheme gains political visibility.

**1. Define the constraint and causal route.** Authorities should identify the specific local barrier being addressed—such as underused land, weak access to work, constrained industrial capacity, limited scale-up space or poor town-centre footfall—and explain the route to economic outcomes. The chain from activity to productivity, employment, earnings, investment or business formation should be short enough to test.

**2. Map dependencies and sequence intervention.** What needs to happen first? Which investment becomes more valuable if another proceeds? What costs or risks could be displaced into skills provision, public services, transport or environmental mitigation? This is the stage at which a less visible enabling intervention, such as remediation, power reinforcement, workspace management or a skills partnership, may prove more valuable than a headline capital project.

**3. Test delivery, not merely consent.** Land control, planning, utilities, procurement, capability, operating arrangements, consents and timetable should be tested separately. A project with an unresolved grid connection or no viable operator may remain a useful option, but should not be represented as construction-ready.

**4. Specify the public role.** The capital stack, public ask, risk allocation and rationale for intervention should be explicit. Some opportunities will need grant, public land, guarantees, revenue support or regulatory action rather than a conventional commercial model. The key question is whether public support changes the outcome, rather than replacing activity that would otherwise occur.

**5. Assign benefits ownership.** Outputs such as square metres completed or routes opened are not economic outcomes in themselves. The National Audit Office stresses that value from major-project investment depends on what happens after completion, not solely on delivery to time and budget (NAO, 2026) ↗. Each proposition should therefore name the organisation responsible for benefits realisation and use leading indicators alongside longer-term outcomes.

A project can advance, pause, merge, change form or be retired. Recording why is valuable institutional memory. It also makes adaptation more credible: changing a proposition in response to evidence is not failure, whereas concealing a failed assumption usually is.

Market engagement and social value should improve the economic mechanism

**Evidence.** The Local Growth Plan guidance includes social value considerations. The Local Growth Fund technical document requires alignment with Local Growth Plans, risk management and monitoring, while cautioning against spending that lacks a clear and direct impact on local economic growth (MHCLG, 2026) ↗ ↗.

**Interpretation.** Social value is most credible where it improves the mechanism through which economic gains occur. Local recruitment can strengthen an employer’s labour pipeline. Accessible procurement can develop local supplier capability. Affordable workspace can widen the pool of viable founders. Community stewardship can make a high-street asset more resilient after capital funding ends. These outcomes need a delivery model, resource and accountable owner; they are not secured by a generic commitment in a business case.

The same discipline should shape market engagement. National data show 2.79 million VAT- and/or PAYE-registered businesses in the UK in March 2026, while business investment rose in the second quarter of 2026. Those figures describe an active national business base, but cannot establish the viability, financeability or operating demand for any particular local proposition (ONS, 2026) ↗ ↗.

That gap is precisely why MSAs should engage potential occupiers, operators, SMEs, social enterprises and supply-chain firms before a project is fixed. They can test customer demand, workforce requirements, operating costs, supplier capacity and realistic procurement routes. Such engagement is due diligence, not delegation: authorities should use it to challenge assumptions rather than allow incumbent providers to determine policy.

For smaller firms, the opportunity is therefore not limited to future tenders. They may add most value earlier, by validating demand, forming delivery consortia, identifying skills bottlenecks or helping design viable operating models. This is especially important where entrepreneurship, local management capability or the long-term health of high streets is central to the intended outcome.

Be visible about ambition, candid about uncertainty

**Evidence.** Local Growth Plan guidance calls for meaningful investor information, including the investment proposition, location, sector, asset owner, delivery timeline, funding requirements, regulatory contingencies and existing partners. It also recognises that some information may be commercially sensitive (MHCLG, 2026) ↗.

**Interpretation.** This creates a real trade-off between visibility and optionality. Public information can draw in investors, operators and delivery partners, while providing an early test of market confidence. Yet premature announcement can harden a weak concept before technical work, community engagement, market testing or procurement identifies a better approach. Overstating certainty on land, permissions, finance or private commitments can damage confidence when an opportunity inevitably changes.

**Sanctuary recommendation.** Adopt staged disclosure. The public plan should be clear about the problem, intended outcome, maturity, next decision and material contingencies. Internally, authorities should retain alternative sites, phasing options, procurement approaches, delivery models and fallback interventions until evidence justifies narrowing the choice.

The measure of a successful Local Growth Plan will not be the length of its project list or the polish of its presentation. It will be whether the authority makes difficult choices early, directs development effort towards constraints it can influence, and remains honest about those it cannot yet control. That is how a strategic plan becomes a practical framework for local economic value rather than a catalogue of intentions.