Chinese tech giant Huawei on Sunday confirmed its plans to build and operate an optical device research and development base in Cambridge within the next five years.

The facility, occupying 513 acres (2 square kilometres) of land, will be located at a base in the village of Sawston, 11 kilometers outside of Cambridge and just 15 minutes from the headquarters of Arm Holdings, the United Kingdom's largest technology company.

The facility would create 400 jobs for the area and is due to be operational by 2021.

It's reported that Henk Koopmans, the chief executive of Huawei Technologies R&D UK, said he purchased the site for 37.5 million pounds ($49.4 million) last year.

It's believed that Huawei is to build several tall buildings on the land, with the possibility of funding a new medical center and a bus stop, and the company has asked local residents to decide what facilities are needed, which could be built on an unused part of the site.

The tech giant had said it could eventually develop artificial intelligence there.

According to the Financial Times, Huawei employs thousands in the UK, including about 120 in Cambridge.

The expansion in the university city is part of a five-year 3 billion pound investment plan for the UK that it announced alongside the British Prime Minister Theresa May in February last year.

Nearby Arm Holdings has invested heavily in its workforce in the area and is part of the reason Cambridge has become a silicon center specializing in chips.

It's also reported that the Chinese tech company wants to continue to work with Cambridge University and target their graduates.

"We have a long-term collaboration with Cambridge University," a spokesman for the Chinese company told the FT, pointing to a five-year 25 million pound co-operation and partnership with BT to fund research.

Last week, the UK defence secretary Gavin Williamson was sacked following an inquiry into a leak from a top-level National Security Council meeting.

Williamson's dismissal came after reports in the Daily Telegraph about plans to allow Huawei limited access to help build the UK's new 5G network.

The former defence secretary had "strenuously" denied leaking the information.

The United States has accused Huawei of spying on behalf of China, although it has not provided any evidence to support the claim. Both Australia and New Zealand have joined the US in boycotting the use of Huawei kit in 5G networks.

Last month, Liu Xiaoming, China's ambassador to the United Kingdom, had called on Britain to work with Huawei on its 5G network infrastructure.

Liu had urged UK policymakers to reach an "independent decision" and act "in accordance with their national interests".

Ma Si in Beijing contributed to this story.