This briefing note is for both local and combined authority audiences to explain how asset bundling works to secure Net Zero investment, minimise public spending, and avoid stranded assets.
Mixed-asset bundling for Net Zero investment
Mixed-asset bundling is a way for local and combined authorities to attract investment into Net Zero projects that may struggle to secure funding individually. By combining different asset types into a single investment proposition, authorities can reduce costs, spread risk, unlock additional private capital, and avoid leaving important but less commercially attractive projects dependent on public funding alone:
- Use bundling to improve investment attractiveness, combining smaller or lower-return assets with stronger-performing projects to create more compelling opportunities for investors.
- Support comprehensive decarbonisation, ensuring that essential Net Zero assets can progress even when they would be unlikely to attract commercial investment on a standalone basis.
- Improve efficiency and coordination through shared planning, procurement, financing, and delivery arrangements across multiple projects.
- Spread financial and operational risk across a portfolio of assets rather than concentrating exposure within a single project or technology.
- Develop bundles around different objectives, including technically linked assets such as insulation and heat pumps, socially focused projects that deliver wider community benefits, or single-sector programmes covering heat, power, or transport.
- Adopt a range of implementation models, including public-private partnerships, place-based programmes, strategic asset management plans, and collective investment vehicles.
- Use geographic approaches where appropriate, bundling assets within districts, town centres, or wider local areas to support coherent economic development and decarbonisation plans.
- Unlock wider benefits beyond carbon reduction, including job creation, health improvements, enhanced natural assets, and broader social outcomes.
- Recognise key delivery challenges, particularly around valuation, legal arrangements, governance requirements, accountability, and securing sufficient investor interest.
- Follow a structured development process, beginning with asset identification and readiness assessments, moving through valuation, financial structuring, and procurement, and ending with clear governance, performance monitoring, and reporting arrangements.


Fit4Finance resources are designed to help local authorities move from isolated, grant-funded projects to scalable, investment-ready portfolios.
They include diagnostic tools, case studies, training, and investment models to support project delivery, unlock blended finance, and encourage collaboration across finance, climate, housing, and economic development teams.