Set in a self-contained landscaped site, BEP0 delivers multiple mezzanine floors of premium accommodation suitable for R&D, offices, labs, light engineering, production and clean rooms.

BEP0 – the acronym for ‘British Experimental Pile 0’ – was the name given to Europe’s first and largest air-cooled nuclear reactor, designed in 1948 at Harwell. This was when it once contained a reinforced 50-ft long concrete box packed with 28,000 graphite blocks (the pile) – all now safely disposed of!

Available as a shell for full or partial bespoke fit-out, BEP0 offers workspaces in flexible unit sizes up to 1,162.7 sq. m (12,516 sq. ft). A second mezzanine floor can also be installed to provide additional office space or ancillary accommodation.

With its full clear internal height of 10 metres (33 feet), BEP0 is the ideal home for business and research within the Space, Energy, Life Sciences and Quantum sectors. Benefits include three-phase electricity, fast, reliable Broadband, and allocated car parking, plus fully-customisable layout potential of this commercial property.

BEP0 Building specifications

sq m
sq ft
  • 294.7

    Minimum size

  • 1162.8

    Maximum size

  • 8.5 – 10 metres

    Full clear internal height

  • Available as shell

    Ready for tenant fit out

  • Multistorey height

    Two and three story available

View our interactive tour for an early preview of the build

Energy Effecient


Car parking

Allocated places available

Service doors

4m wide by 5m high

Fully equipped

3 phase electricity

Life at Harwell

Companies thrive when their people do. Harwell is designed to bring out the best in your teams, whether you’re a two-person start-up or a FTSE-listed multinational. Our campus combines beautiful countryside with city-level facilities, including on-site food and drink and numerous sports clubs, covering rugby to archery. The facilities are set to expand too, with cutting-edge conference spaces, a new hotel, and contemporary homes in our residential quarter all due to open soon.


Harwell is located in beautiful countryside just south of Oxford, one of the fastest growing cities in the UK.

Oxford city centre is just over 20 minutes, drive away, Heathrow is 55 minutes by road, and nearby Didcot Parkway station connects you to London Paddington in just 42 minutes. The launch of Crossrail and the upgrade to the Didcot Parkway Line mean it will soon be possible to reach central London Underground stations in under one hour.

There is a shuttlebus service through the day to Didcot Parkway and Oxford.


At Harwell, your neighbours are some of the most innovative science and engineering organisations in the world. Our collaborative approach supports companies of all sizes, and companies here have access to a wide range of practical business support and funding, from grants and tax breaks to venture capital opportunities. What’s more, being at the centre of the Oxfordshire innovation ecosystem allows you to easily attract and recruit talented candidates from a wide range of fields.

Network & collaboration

Harwell is your gateway to a lively, 6,000-strong community – as well as a unique opportunity for holding talks with leading thinkers, scientists and senior politicians from across the globe. Make new connections at Connect Harwell, our central forum which links up over 200+ companies at inspiring events. And collaborate in our range of meeting room and conference spaces. The campus also organises free Special Interest Groups and Forums, C-Suite symposiums, and hosts university placements and apprenticeships for students in Science, Engineering, IT and Business.

Our clusters

One of Harwell’s greatest strengths is the way it brings people together. And basing yourself or your organisation here gives you easy access to the UK’s most unique professional clusters: Space, Quantum, Health Tech and Energy Tech. Each cluster gathers businesses, organisations and people from across the campus and the UK to share ideas, take risks and attract funding – and ultimately, solve the biggest problems facing our planet.

A healthy place to work

Where wellbeing comes first

Wildflower areas. Fresh air. Leafy walkways and views out to the rolling Oxfordshire countryside. Located in an Area of Outstanding Natural Beauty, Harwell is as beautiful a place for your employees to work as it is inspiring – giving easy access to green space, nature, and various walking and bike trails. A real pleasure to stroll around, the campus also runs a Bicycle Loan Scheme for staff to hire manual and electric bikes.

Get in touch

How’s your tomorrow looking?

To find out how your future could look at Harwell contact our expert team.

The critical mass of R&D powerhouses on campus has led to a very unique scientific community. There is very strong demand particularly in life sciences and engineering sectors at the moment. This is matched by the development pipeline on Harwell campus, which provides R&D spaces such as BEP0.

Patrick Pringle

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