Making Change Happen

Global City Futures provide expert advisory services that enable the public sector, developers, and public-private partnerships to confidently progress with ambitious sustainable projects and infrastructure transition .

Our multi-disciplinary approach combines financial expertise, economic insight, and expertise in public sector finance, corporate vehicles and HMT Green Book Compliance. For business case development, securing funding, or navigating complex regulatory frameworks we can help you find a viable path forward.

Business Case Development

Operating within our clients senior teams, we develop business cases that foster high-level executive approval and secure investment. Our team works across the full lifecycle of HM Treasury’s Green Book process, developing all strategic, economic, commercial, financial, and management cases.

  • Economic appraisalsDelivering rigorous assessments to demonstrate value-for-money.
  • All stages of business case development:

Strategic Outline Case (SOC), Outline Business Case (OBC), procurement strategy and implementation, Full Business Case (FBC). End-to-end support from vision to approval

  • Delivery and funding options appraisal
    Identifying and evaluating feasible delivery and funding models
  • Commercial advice and contract negation throughout procurement process 
  • Project management
    Providing the structure and oversight to keep complex programmes and projects on track.
  • Governance and regulatory appraisal
    Ensuring projects meet legal, regulatory, and institutional requirements.

Financial modelling

Our financial modelling services translate complex variables into clear, decision-ready analysis. We provide the evidence base needed to shape investment decisions, pricing structures, and funding plans.

  • Development of investment grade financial models: complex model architecture for infrastructure projects
  • Investment and development appraisal 
  • Evaluating financial viability and return on investment for infrastructure and development.
  • Financing, taxation, indexation
    Accounting for inflation, tax structures, and financial mechanisms to optimise outcomes.
  • Green Book financing tables
  • Developing financial inputs aligned with HM Treasury guidance.



Commercial funding and delivery models

We explore innovative delivery models and financing structures to unlock and accelerate project delivery. Our team helps clients navigate and combine public, private, and blended funding options.

  • Options appraisal
    Weighing the costs, risks, and benefits of delivery and funding strategies.
  • Blended and tiered finance
    Structuring layered funding from diverse sources to de-risk and scale projects.
  • Net zero pipeline development
    Creating fundable, phased pipelines to drive local decarbonisation agendas.

Stakeholder engagement

Meaningful engagement is at the heart of successful project delivery. We help clients bring key partners and communities on board through evidence-based engagement and consultation.

  • Heat network offtaker and supplier engagement
  • Targeted outreach to potential public and private sector customers of heat networks.
  • Staff surveys
  • Gathering insights from within your organisation to inform design and delivery.
  • Research
  • Customised studies to support strategic planning, investment cases, and stakeholder alignment.

Technical Accounting Advice

Public sector finance requires specialist knowledge. We provide expert technical accounting advice on structuring, compliance, and reporting against public sector accounting and budgeting regulations. 

  • IFRS accounting opinions 
  • National Accounts budgeting classification opinions
  • Capital Departmental Expenditure Limits (CDEL)
  • Structuring projects to meet public capital funding rules
  • Resource Departmental Expenditure Limits (RDEL)
  • Resource account budgeting for your project
  • Special Purpose Vehicle (SPV) structuring
  • Designing delivery vehicles that optimise tax treatment and business rate implications.

Economic Appraisal

Our economic appraisal services include moving confidently from a long list of options to a robust, evidence‑based shortlist.

We provide detailed and rigorous quantification of social, economic and environmental benefits, alongside structured assessment and quantification of risk. This is underpinned by clear value‑for‑money appraisal to support scrutiny and funding approval.