News article

Orbis Unveils New Hub for Science and Innovation in London

Author
Cavendish Square
Partners
Reef + Partners
Published
Topic
Innovation

A global long-term investor that manages Singapore’s foreign reserves, and Reef + Partners, the leading property development and investment specialist, today announce construction starting on Cavendish Square, a new landmark healthcare and innovation development that will deliver the largest purpose-built healthcare facility in the Harley Street Health District.

Located beneath the historic Cavendish Square Gardens, minutes away from Oxford Street, the development will provide approximately 280,000 sq ft of flexible, hospital-grade space across four subterranean levels, seamlessly connected to one of the world’s most renowned healthcare clusters.

The development is a joint venture (JV) between Reef + Partners, who completed the £42 million purchase of a freehold for Cavendish Square’s underground car park from Westminster City Council (WCC) in July 2026. Reef + Partners is leading the development in collaboration with WCC, who retain freehold ownership of the public garden. McGee is the appointed contractor building the project, with construction starting today and expected to complete in 2030.

With an expected gross development value
of £520 million, Cavendish Square
represents a significant investment into
Westminster and London's wider economy.

Supporting the capital’s position as a global centre for healthcare excellence and tech innovation. The project demonstrates the area’s attractiveness for investment growth and the power of public-private collaboration in delivering infrastructure that generates long-term economic and social benefits.

The cutting-edge development is designed to create an innovative ecosystem for technology and healthcare. Close to Harley Street it is ideally placed to bring clinicians, researchers, healthcare providers and digital health pioneers together within a purpose-built, high acuity environment capable of supporting the most advanced medical specialisms and technologies. Cavendish Square will therefore become a vital component of London’s future healthcare ecosystem as a next-generation hub for healthcare delivery, research and innovation.

Quote

“Its scale, location and design create a unique proposition for healthcare operators seeking state-of-the-art facilities within the Harley Street Health District.”

From CBRE

Tom Morgan

Head of Operational Real Estate

CBRE

The development comes at a time of
growing demand for healthcare services
across London.

Patient demand is expected to increase significantly over the coming decade, driven by structural population trends and increasing healthcare needs. At the same time, healthcare providers continue to face a shortage of modern and scalable clinical space. Cavendish Square has been conceived to help address this infrastructure challenge by delivering future-ready healthcare facilities in the heart of London’s premier medical district.

The Harley Street Health District already supports more than 5,000 medical specialists and consultants across more than 250 clinics and healthcare providers, including The London Clinic, HCA Healthcare, The Royal Marsden and King Edward VII’s Hospital. The scheme will enjoy direct access to this and to leading hospital networks including University College London Hospitals NHS Foundation Trust and Imperial College Healthcare NHS Trust.

5,000+

Specialists and consultants

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250+

Healthcare providers

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£520m

Gross development value

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2030

Expected completion

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Designed by Reef+Partners and Todd
Architects and engineered by Arup, the
scheme which closes adapts and extends an
existing car park structure beneath the
gardens has unique sustainability
credentials.

All heating, cooling and hot water to the development is provided by a pioneering array of ground source heat pumps drawing heat chalk strata from more than 200m below ground. It will also feature sustainable drainage systems (SuDS) and a blueroofs strategy which slows down rainwater runoff.

New trees and planting within the gardens are being specified to be climate resilient and reference the historic healthcare setting. Natural light will be provided via two large atria running around the southern perimeter of the gardens and extensive pavement lights within the gardens and around the square. The development will be net zero carbon in operation and will target a minimum 30% renewable energy sources.

As part of the fully consented proposals, the
project will deliver a comprehensive
regeneration of Cavendish Square Gardens.

The development comes at a time of growing demand for healthcare services across London. Patient demand is expected to increase significantly over the coming decade, driven by structural population trends and increasing healthcare needs. At the same time, healthcare providers continue to face a shortage of modern and scalable clinical space. Cavendish Square has been conceived to help address this infrastructure challenge by delivering future-ready healthcare facilities in the heart of London’s premier medical district.

The Harley Street Health District already supports more than 5,000 medical specialists and consultants across more than 250 clinics and healthcare providers, including The London Clinic, HCA Healthcare, The Royal Marsden and King Edward VII’s Hospital. The scheme will enjoy direct access to this and to leading hospital networks including University College London Hospitals NHS Foundation Trust and Imperial College Healthcare NHS Trust.

Designed by Reef+Partners and Todd Architects and engineered by Arup, the scheme which closes adapts and extends an existing car park structure beneath the gardens has unique sustainability credentials.

All heating, cooling and hot water to the development is provided by a pioneering array of ground source heat pumps drawing heat chalk strata from more than 200m below ground. It will also feature sustainable drainage systems (SuDS) and a blueroofs strategy which slows down rainwater runoff.

New trees and planting within the gardens are being specified to be climate resilient and reference the historic healthcare setting. Natural light will be provided via two large atria running around the southern perimeter of the gardens and extensive pavement lights within the gardens and around the square. The development will be net zero carbon in operation and will target a minimum 30% renewable energy sources.

What our partners are saying

"Cavendish Square is one of the most significant healthcare real estate opportunities currently available in Europe. Its scale, location and design create a unique proposition for healthcare operators seeking state-of-the-art facilities within the Harley Street Health District. The combination of structural demand growth, limited supply of modern clinical accommodation and proximity to one of the world's leading healthcare clusters creates a compelling platform for occupiers."
“An important investment in Westminster's future, supporting our ambitions for economic growth and innovation.”
“An opportunity to strengthen London's healthcare and innovation ecosystem.”

Media Contacts

About Reef + Partners

Reef + Partners is a leading real estate developer and investor delivering connected science, healthcare and innovation ecosystems through the power of partnerships. We combine exceptional design, deep sector expertise and long-term investment to create mixed-use places that accelerate innovation, create lasting value and support occupiers ranging from early-stage companies to global pharmaceutical, healthcare, technology and academic organisations.

Our portfolio includes London’s largest purpose-built science and innovation campus at Tribeca and Royal College Place in the King’s Cross Knowledge Quarter, alongside London’s first subterranean healthcare facility at Cavendish Square. Together, these projects comprise over 3 million sq ft of highly technical science, healthcare and innovation space, positioning Reef + Partners at the forefront of delivering the next generation of innovation ecosystems.

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Questions about Orbis, our locations or becoming part of the ecosystem? Get in touch with our team to find out more.

(Email)
contact@orbis-innovation.com
(Phone)
+44 (0)20 7637 0601