We have been calling for a Cambridge Development Corporation since our Radical Regeneration Manifesto in 2019. When the idea resurfaced in the 2023 Autumn Statement, we said a good idea would not be effective if left unattended: it needed plan-making teeth, a lifespan longer than a political cycle and access to serious finance.
Three years on, the Greater Cambridge Development Corporation (GCDC) was formally established in July 2026. This Autumn's Budget has now given it something it lacked previously and that is a funding model. Add a newly empowered Mayor at the Cambridgeshire & Peterborough Combined Authority (CPCA) and the governance map of Greater Cambridge is being redrawn faster than at any point in a generation.
Long-term commitment
The headline is a £215 million package for the GCDC. It splits into two very different kinds of funding: £105 million of repayable finance (financial transactions funding) for land acquisition, site assembly and co-investment with development partners and £110 million of capital grant, which is available up to 2030.
The more important announcement is the mechanism, not the finance. The GCDC will be the first development corporation in England to pilot a new financing model, giving it direct access to long-term government finance from April 2027. It can borrow to buy land, build infrastructure up front, and recover that investment as value is created. Government has said the pilot could shape development corporation financing across England, and it intends to consult on an Oxford equivalent by the end of this year.
This is the most significant endorsement of the GCDC since its establishment. It signals three things: that Government sees the GCDC as the principal delivery vehicle for growth; that it is moving towards an infrastructure-led model where upfront public money unlocks large housing and employment sites; and that it wants housing delivery and the expansion of the knowledge economy to be solved together, not traded off against each other.
That said, let's keep a sense of proportion. A report prepared for Cambridge City Council in March estimated that delivering 100,000 to 150,000 homes and supporting infrastructure by 2050 could require £25 billion to £50 billion of combined public and private investment. £215 million is a down payment, not a settlement. The real test is whether the financing pilot can lever in private capital at scale. It is a first step on a very long road, but it is the right road.
The pilot is explicitly tied to the Oxford-Cambridge Growth Corridor, and to the delivery of new homes, employment space, laboratory and innovation facilities, and the infrastructure that follows growth, not least the opportunities that the development of East West Rail will open.
The Budget also confirmed continued work, with the Combined Authority, on a proposed Business Rates Retention Zone around the Cambridge Biomedical Campus, potentially from 2028. The principle is simple and overdue: a share of the additional business rates generated by the campus stays local and is reinvested in the infrastructure that growth demands.
Alongside this sit broader devolution measures allowing regional authorities to retain more locally generated tax revenue for infrastructure investment.
For a sub-region that has long exported its tax take to the Treasury while queuing for the roads, rail, water and power it needs, this matters. Cambridge has never been short of growth; it has been short of a way to capture the value of that growth and put it back into the ground. Taken together with the GCDC's financing pilot, these measures give Greater Cambridge the beginnings of a self-reinforcing funding model.
The Mayor’s decision making
The GCDC does not operate in a vacuum. Paul Bristow, Mayor of the Cambridgeshire & Peterborough Combined Authority, already holds significant growth-related levers: transport investment and the Local Transport Plan, bus policy (including the move towards franchising), strategic housing and brownfield funds, business growth and inward investment programmes, the long-term investment fund from the original devolution deal and the mayoral precept.
In July 2026, the CPCA secured designation as an Established Mayoral Strategic Authority, the top tier of England's devolution framework. This does not transfer every new power overnight, but it opens the door to them.
Five changes stand out on this:
- An integrated funding settlement is potentially the biggest change. Rather than bidding into a patchwork of Whitehall pots, the CPCA can negotiate a multi-year block settlement and decide locally how it is spent. This gives the mayor more influence than many formal powers, because it loosens central control over spending priorities.
- Stronger transport powers are envisaged, including more control over local rail services and stations, expanded bus powers, and new powers over Key Route Networks, including designating strategic roads and directing traffic regulation decisions on them. In Cambridge, that puts the mayor at the centre of debates on Milton Road, the Hills Road corridor, new public transport corridors, congestion management and the routes serving growth areas.
- Planning and regeneration powers will follow. The detail awaits legislation and negotiation, but the direction points to greater strategic planning functions, land assembly, regeneration and development corporation powers. In Cambridge, these will inevitably be exercised alongside the GCDC.
- More control of local revenues comes through increased business rates retention from 2027, with possible future income tax retention (details yet to be confirmed). Given the Biomedical Campus, the science parks and the proposed Retention Zones, the stakes here are unusually high.
- A right to request gives the CPCA a formal route to ask for deeper devolution where it can demonstrate delivery capacity. Expect it to be used.
Two bodies, one City
So, we now have a development corporation with money to buy land and build infrastructure, and a Mayor with growing control over transport, strategic planning and local revenues. On a map of Greater Cambridge, their interests overlap almost everywhere that matters.
That could be a recipe for turf wars. My view is that it does not need to be. The logical settlement is a clear division of labour: the GCDC as the delivery engine for the major growth locations in and around Cambridge, and the CPCA as the strategic layer, covering transport, funding settlements and the wider sub-regional picture. I would not be surprised to see the CPCA take a development corporation-style approach to Peterborough, giving the authority a delivery vehicle of its own in the north of the county.
The lines in the sand need to be drawn early and drawn clearly. Each body operating within its own remit, neither second-guessing the other's plans, and both aligned on the infrastructure they will inevitably share. If that discipline holds, the combination is far more powerful than either body alone. If it does not, we risk replacing one form of fragmented decision-making with another.
For now, the statutory planning powers of Cambridge City Council and South Cambridgeshire District Council remain largely unchanged. But the direction of travel is unmistakable - where major growth sites and strategic infrastructure are concerned, decisions are moving up to the mayoral and development corporation level.
What’s next?
The timetable runs over years, not months. Increased business rates retention and the GCDC's financing pilot both begin in 2027, with wider transport, planning and funding powers rolling out through 2027 and 2028, and the Biomedical Campus Retention Zone potentially following from 2028.
Plenty remains unresolved: where the GCDC's remit ends and the Mayor’s begins on key transport corridors, how retained business rates will be shared, and how land assembly will sit alongside the emerging Greater Cambridge Local Plan. The answers will shape land values and delivery timescales.
For landowners, promoters and developers, the conversation about major sites is moving. The GCDC will be an investor and partner as well as a regulator, with its own balance sheet and an appetite for land. Those who engage early and can show how their land supports infrastructure-led growth will be best placed.
In 2023, we asked whether development corporations would deliver big for Cambridge. Government has now backed it with finance. The question now is whether the two bodies charged with delivering it can pull in the same direction.
