Federated Hermes client puts £800m Oxford park up for sale

CBRE has been appointed to sell a client of Federated Hermes's interest in Milton Park, the Oxfordshire innovation estate whose total enterprise value the marketing puts at £800 million, or about $1.1 billion; IREI, which first reported the mandate, notes that this is the first time the park has been openly marketed since 1984. Openly is the operative word. Off-market trades in the interval remain possible, and the coverage offers no ownership history over those four decades, so the estate has not been tested against a competitive public process in 42 years and whatever number it prints will be quoted far beyond Oxfordshire.

The estate is 87 buildings on 302 freehold acres, its more than 1.2 million square feet of industrial and logistics leading 638,000 square feet of laboratories and upwards of 500,000 square feet of conventional office, with more than 280 occupiers drawn from healthtech, fusion energy, quantum, agtech, distribution and advanced engineering. The coverage bills it as the largest single-ownership innovation park in the United Kingdom, a claim about ownership more than scale.

What the mandate leaves out is as load-bearing as what it contains: no size of the interest on offer, no asking price, no bid deadline, and no indication of whether the seller intends to exit in one piece. The £800 million is an enterprise value for the park, not a price for the stake, so quoting it as an asking price is arithmetic the mandate does not support. Spread across the built estate, the valuation works out to roughly £276 per square foot, a blend that counts 2.9 million square feet of buildings and leaves the freehold acres beneath them at zero.

The infrastructure is the pricing argument: Milton Park carries a ring-fenced 22-megavolt-ampere power capacity, a local development order that moves compliant proposals to full planning permission in ten days, and Enterprise Zone status that lets business rates be retained locally and reinvested. It sits just south of Oxford, close to Didcot Parkway, at the centre of Science Vale, which the marketing describes as a globally recognised ecosystem with one of the United Kingdom's highest concentrations of R&D employment. Buildings can be built across the Thames Valley; a grid connection, a ten-day consent route and retained business rates cannot, and a bidder paying £800 million of enterprise value is paying for the second list.

With CBRE, which has appeared in 60 stories in our records this year, running the process, the seller is a client of Federated Hermes, though whether that client holds a share of the freehold, a stake in a joint venture, or a position in a pooled vehicle is not disclosed. The answer changes what a buyer acquires: income and control in the first case, a seat alongside other owners in the second, a financial interest in the third.

Industrial now trades as a rents-and-scarcity business rather than a building business, with the operator, the land basis and demand pull setting the clearing price, and Milton Park tests that position unusually cleanly because it straddles two demand curves at once. More than two-fifths of Milton Park's space is logistics, the half of the estate where scarcity and power capacity ought to carry a premium. The 638,000 square feet of laboratories answers to a different buyer, one underwriting fit-out costs, churn and a demand curve unconnected to rack rents.

Then there is the office. Office finds a clearance mechanism only where a trade prints, and nothing has printed here: no vacancy rate, rent or lease term for these buildings appears in the coverage, which means the clearing price gets discovered in the bidding, where no comparables exist to read it from. Whether the winner takes the park as one blended asset or splits it into a logistics book, a lab platform and an office problem is the most revealing question in the process. On the evidence of who bids on non-trophy office when the vacancy is known, the office is unlikely to be the piece that sets the price.

An £800 million enterprise value on a single estate narrows the list to buyers able to underwrite 87 buildings and 302 acres in one go, and that list shortens again when the same buyer has to hold a 1.2 million-square-foot logistics portfolio and a laboratory platform side by side. Fragmentation is the alternative, and it is not costless: a break-up hands the sheds, the labs and the offices to different owners, few of whom are likely to pay for the option value inside the planning regime that a single owner would.

South Broward Hospital District's $69 million purchase of a 1980s Hollywood campus showed that in specialist product the buyer who clears is the one already anchored in the demand, and the equivalent bidders at Milton Park are more likely to be science-park operators, occupiers with land needs of their own, or a consortium assembled around the power connection than generalist core funds. That is inference from the asset's shape, not something the mandate discloses.

The bidding settles whether the interest goes in one block or fragments, and what a completed sale would imply for 302 freehold acres the enterprise value currently carries for nothing. If the stake clears anywhere near the £800 million valuation, every other owner of a Thames Valley science park gets a mark to argue from, and the argument will be about megavolt-amperes, ten-day consents and retained business rates.