Institute of Immunity and Transplantation


NK T-cell lymphoma


Pears Building

The Pears Building is a world-class research centre bringing together leading scientists, academic clinicians, and clinical trials specialists to develop revolutionary treatments and therapies for patients.

Artist impression of The Pears Building

The Pears Building has been enabled by productive partnership working between UCL and the Royal Free London NHS Foundation Trust and the Royal Free Charity.

It is the home for the IIT and provides cutting edge research laboratories and also accommodations for patients who participate in clinical trials or attend the specialist clinical services at the Royal Free Hospital.

We are grateful to all the donors who have supported the IIT and the construction of the new Pears Building. We have received generous donations from the Pears Foundation, the Wolfson Foundation, the N. Sethia Foundation, and the Catherine Cookson Charitable Trust.

Cutting-edge medical research facility

Scientists in the Pears Building will perform patient-focused research to develop better treatments for diseases such as cancer, diabetes, HIV and hepatitis, as well as new therapies to stop the rejection of transplants.

The new facilities will provide the best possible infrastructure for research, training and clinical delivery, with state-of-the-art research labs, equipment and clean room facilities to adapt research protocols for production of clinical grade therapeutics for trials in patients.

The building will house state of the art laboratories and write up spaces for scientists of the UCL Institute of Immunity & Transplantation. In addition, there are two levels of the building for patient accommodation, one level for a covered car park for use by the hostpital and the public, and a level for the Royal Free Charity's offices.

Sustainable design

The Pears Building has been designed in line with the requirements of the BREEAM method, which sets standards for the environmental performance of buildings.

To this end, the building will have solar panels to generate electricity for the running of the building and a 'brown' roof to provide habitats for local wildlife. In addition, its structure is designed to prevent the leaking of heated air, saving energy.


Construction of the Pears Building was completed in June 2021, in the grounds of the Royal Free Hospital. Watch the construction of the building via the time-lapse video below:

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