£30 Billion, Two Confirmed Sites, and a Third Still Outside the Zone: What the North East AI Growth Zone Actually Means for the Corridor

In September 2025, the government designated the North East's AI Growth Zone, unlocking more than 5,000 jobs and up to £30 billion of investment. The Combined Authority's own prospectus describes it as "anchored around Cobalt Park in North Tyneside and Cambois in Northumberland." Teesworks in Redcar, at the southern end of the corridor, was not included. Outline planning permission has since been granted there and the main obstacle to the scheme has been removed, but the site still has no confirmed Growth Zone status. Two confirmed sites, one that isn't. That distinction changes how you should underwrite a deal in each location.

Key takeaways

• Confirmed AI Growth Zone geography: Cambois, Northumberland (Blyth) and Cobalt Park, North Tyneside.

• Not confirmed: Teesworks, Redcar. Planning permission granted, competing scheme withdrawn, no Growth Zone designation.

• Property implication: price each site on what's actually committed today, not on what the announcement implies is coming.

• Planning implication: check HMO planning position independently of the infrastructure story. They move on separate clocks.

What most people will assume, and why it's not quite true

The North East AI Growth Zone has been talked about since September as one £30 billion story running the length of the corridor, from Blyth down to Teesside. That's an understandable shorthand. Teesworks gets mentioned in the same sentence as Blyth and Cobalt in most local coverage, and the numbers involved are genuinely corridor-wide in ambition. But the government's designation on 17 September 2025 named two sites. The Department for Science, Innovation and Technology confirmed Blyth in Northumberland and Cobalt Park in North Tyneside as the AI Growth Zone. Teesworks in Redcar was left out, and Place North East reported at the time that this was tied directly to an unresolved land dispute on the site, between BP's proposed H2Teesside hydrogen and carbon capture plant and Teesworks Limited's preferred AI data centre scheme (Place North East).

Six weeks after the announcement, Teesside still had no confirmed status. Teesside Live reported that Tees Valley Mayor Ben Houchen's office could only say proposals "remain in progress" (Teesside Live). The position has moved since, but it hasn't closed out. In December 2025, BP withdrew its hydrogen proposal, citing Redcar and Cleveland Council's decision to back the data centre scheme instead. Outline planning permission for the data centre, a 500,000 sqm campus that would be one of the largest in Europe, has been granted. A more detailed application is still required before construction starts, and no announcement has confirmed Teesworks as part of the AI Growth Zone.

The North East Combined Authority's own AI Growth Zone Prospectus, published May 2026, uses this exact phrasing: the Growth Zone is "anchored around Cobalt Park in North Tyneside and Cambois in Northumberland" (North East AI Growth Zone Prospectus, May 2026). Eight months after the original announcement, and well after the BP withdrawal, that's still the government's position. Teesworks isn't named as one of the two anchor sites anywhere in the document.

What's actually confirmed, site by site

Cambois, Northumberland (Blyth): the data centre campus is developed by Renaissance Land, owned by Blackstone, and will be operated by QTS. Blackstone has already committed £10 billion, with the Growth Zone designation opening the door to further investment from other partners as the wider £30 billion figure scales up. The campus is due to come online in 2028. The Combined Authority's prospectus gives the most detailed jobs breakdown available: 1,200 construction jobs, 400 permanent operational roles, and 150 apprenticeships, plus a further 2,700 indirect jobs, with a Social Value Pledge targeting 50% local employment within a 25-mile radius. Enabling works started in October 2025. Blyth currently has no HMO-specific Article 4 Direction removing the national C3-to-C4 permitted development right, meaning qualifying small HMO conversions can still use that route, subject to the individual property's own planning and licensing position.

Cobalt Park, North Tyneside: this is a different kind of site to Cambois, and that difference matters for underwriting. Cobalt is already the UK's largest office park and already operational, home to Sage, Accenture, EE and the NHS, among others. It has now been selected as a site for Stargate UK, the new partnership between OpenAI, Nvidia and British firm Nscale. The first phase brings up to 8,000 GPUs to the site, with the potential to scale toward 31,000 (North East Mayoral Strategic Authority). We have not identified a current HMO-specific Article 4 Direction removing the national C3-to-C4 permitted development right in North Tyneside. The only Article 4 controls we found relate to alterations in specific conservation areas, not change of use from C3 to C4. Check the individual property and ward before relying on that position.

Teesworks, Redcar: the data centre proposal is real, outline planning permission is granted, and the obstacle that stalled it, BP's rival hydrogen scheme, has been withdrawn. What it doesn't have is the Growth Zone designation the other two sites received in September, and the Combined Authority's own May 2026 prospectus doesn't name it as an anchor site either. Investors treating Teesworks as a confirmed third leg of the same £30 billion story are ahead of where the documentation actually is.

What the North East AI Growth Zone means for property investors

Landing infrastructure isn't the same thing as landing tenants. Before pricing any of these sites into a deal, three separate questions need answering, and they don't all point the same way.

The Property Translation

Cambois is a new capital and employment shock landing on a site that had nothing there before. That's the clearest read of the three. Of the 1,600 construction and operational jobs projected in the prospectus, 1,200 are construction roles, which are temporary and typically filled by a mobile workforce needing short-to-medium-term accommodation rather than family lets. The 400 permanent operational roles are the ones worth underwriting for longer-term rental demand, alongside the 150 apprenticeships. The 50% local-employment target within a 25-mile radius is a genuinely useful catchment figure, but it cuts both ways commercially: half the workforce may already live in the area rather than represent new rental demand, and "local" doesn't mean "renting." The realistic property question in Blyth is how much of the existing rental stock within a short commute of Cambois, roughly a mile away, can absorb construction-phase demand now and operational-phase demand from 2028, without assuming every job translates into a new tenancy.

Cobalt is not a speculative employment location in the way Cambois is. It's an established commercial ecosystem adding a new demand layer on top of an existing one. The workforce profile skews toward higher-skilled, better-paid roles in an area that already has rental stock serving Sage, Accenture and NHS staff. Stargate's GPU deployment adds AI and data engineering roles to that mix rather than creating a market from nothing. The underwriting question here is less "will demand appear" and more "how does this specific layer of demand differ from what the area already absorbs," which for most investors points toward quality single-let and small professional HMO stock rather than the kind of contractor-heavy accommodation a greenfield construction project generates.

Teesworks is the optionality play. The development position has genuinely advanced and the competing hydrogen scheme is gone, but there is no confirmed jobs number, no confirmed timeline, and no Growth Zone designation to underwrite against yet. Treat any deal near Teesworks as one that needs to work on its own fundamentals, with the data centre as potential upside rather than the reason for buying.

A worked example: stress-testing the Blyth thesis

KLAP has previously sourced a Blyth reference deal at a purchase price of £50,000 with £22,250 of refurbishment, giving a conservative post-works valuation of £90,000 and a historic ROCE of 73%. That deal was underwritten before the AI Growth Zone existed. Applying KLAP's standard corridor rent guide, a three-bed single let in that condition and location would be expected to achieve somewhere in the region of £675 to £750 per calendar month on today's market, with a small HMO configuration at three or four rooms achieving more on a per-room basis at the region's typical £375 per room for a non-ensuite HMO room.

The discipline worth applying to any new Blyth deal being underwritten against the Cambois news is the same one that made that reference deal work in the first place: does the rent cover the numbers on today's market, at today's planning position, without assuming a single one of those 400 operational roles becomes your tenant. If the answer is yes, the Growth Zone is genuine upside. If the deal only works once you've pencilled in AI Growth Zone-driven demand that hasn't arrived yet, it isn't ready to buy.

Redcar: two different clocks running on the same site

Separate from the Growth Zone question, and worth flagging on its own merits, the Coatham ward within Redcar and Cleveland has its own Article 4 Direction for HMOs, made on 25 September 2025 and due to take effect on 5 October 2026, subject to confirmation (Redcar and Cleveland Borough Council). Teesworks itself sits outside Coatham ward, but anyone sourcing rental stock in the wider Redcar area to serve a future Teesworks workforce needs to check ward boundaries rather than assume the whole borough carries the same planning position. This is the sharper version of the point running through this whole piece: the data centre story and the planning story in Redcar are running on two completely different clocks, one uncertain and open-ended, one dated and closing in October. Don't let attention on the data centre obscure the deadline that's actually confirmed.

A framework for pricing infrastructure into a deal

The same three questions apply to any infrastructure story on the corridor, not just this one:

Layer one, status. Is the investment announced, committed, consented, under construction, or operational? Cambois is committed and under construction. Cobalt is operational and expanding. Teesworks is consented but not designated.

Layer two, employment translation. What jobs are actually being created, when do they arrive, and where would those workers realistically live? Construction jobs and permanent operational jobs pull toward different kinds of rental stock, on different timelines.

Layer three, property fundamentals. Does the deal work on today's rent, today's planning position and today's valuation, without assuming the infrastructure project delivers on schedule or at all?

The takeaway

Two sites on the corridor have government-confirmed AI Growth Zone status, committed capital, and an open planning position for HMO conversion. A third has real momentum and a materially advanced development position, but not the designation, sitting inside a local authority that's closing its own HMO planning window in October regardless of what happens with the data centre. Infrastructure certainty has value, the same way planning certainty does. A funded, designated, under-construction site should carry more weight in your underwriting than a consented project still waiting on a government decision.

Don't price tomorrow's infrastructure into today's property unless the deal already works without it.

If you're looking at deals in Blyth, North Tyneside or the Redcar and Teesside area and want the current planning and infrastructure position checked before you commit, message me directly, because the gap between what's confirmed and what's assumed is exactly where the wrong numbers get baked into a purchase.

Keeshan | KLAP Property Group klappropertygroup.com

Sources: North East Mayoral Strategic Authority (AI Growth Zone announcement, 16 September 2025, and AI Growth Zone Prospectus, May 2026); Place North East (17 September 2025); Teesside Live / Gazette Live (still-no-confirmation report, and Coatham HMO Article 4 reporting); Redcar and Cleveland Borough Council (Article 4 Direction — HMOs); Data Center Dynamics and Tees Business (Teesworks planning and BP withdrawal reporting).