JPMorgan is in negotiations to sell the Foundation Park office and laboratory business park in Maidenhead for around £60 million, CoStar News understands.
Market sources said Praxis has gone under offer for the campus, which JPMorgan appointed Knight Frank and Savills to sell last year.
A guide price of £82.13 million, or an 8.5% net initial yield, had been attached.
The campus covers 12.5 acres and comprises five multilet and single-let buildings, with 60% having been developed in the last four years. Eighty-five percent of income at the park is derived from life science and innovation companies.
The prospectus says there is significant reversionary potential, with an average rent of £31.20 per square foot compared with prime Maidenhead rents of £52.50 per square foot.
The offices and lab space totals 229,860 square feet. Tenants include Biogen, Hitachi, McGraw Hill and Informatica.
There is also an immediate development opportunity with planning permission granted for another 109,785 square feet.
JPMorgan Asset Management bought the office park for £55.4 million from Frogmore, supported by funding from RBS, in November 2015.
It increased occupancy levels and improved the amenities, including the introduction of a regular shuttle bus service to and from Maidenhead train station, on-site exercise classes and a modern café.
It signed its first life science occupier at the park in 2022 when LabCorp Clinical Development took 16,500 square feet at the recently constructed Building 5 for a 10-year term.
All parties declined to comment or did not respond to a request for comment.