Royal Observatory Edinburgh announces renovation of historic 1894 building

Significant investment will protect Edinburgh landmark and improve infrastructure for future generations of scientists and students.

The Science and Technology Facilities Council (STFC) has announced a renovation programme for the iconic 1894 Building at the Royal Observatory Edinburgh (ROE). Ensuring the long‑term preservation of one of Edinburgh’s most recognisable scientific landmarks.

This project will safeguard the historic fabric of the Category A listed building while upgrading essential infrastructure to meet modern standards, while also improving accessibility and sustainability. The works form part of a wider site investment programme delivered by STFC.

ROE on Blackford Hill is home to the UK Astronomy Technology Centre (UK ATC), the University of Edinburgh’s Institute for Astronomy (IfA) and the Higgs Centre for Innovation.

Professor Christophe Dumas, UK ATC Director and Head of Site at ROE, said: “The Royal Observatory Edinburgh is an important part of Scotland’s scientific heritage. This renovation will protect the site for future generations while giving today’s UK ATC and IfA staff the facilities they need to continue delivering world‑leading science.”

Structural integrity

Without intervention, significant areas of the building risk becoming unusable.

The primary aim of this phase of renovations is to improve the building’s structural resilience and prevent water ingress. Planned measures include:

• Repairing and repointing all external stonework.
• Replacing deteriorated balustrades.
• Replacing basement windows.
• Installing forced ventilation in basement areas to address humidity issues.
• Relocating rainwater guttering externally to improve drainage.
• Lining of internal downpipes.
• New flashing on the Observatory Domes to prevent leaks.
• Upgrading lightning protection systems.
• Constructing a retaining wall outside the library to help protect the building from subsidence.
• Relocating the electrical switch room to a new centralised location.

 Managing impact 

STFC recognises the importance of the Observatory to the surrounding community and the many visitors to Blackford Hill. The renovation programme has been carefully planned to minimise disruption and the organisation will provide updates throughout.

Crucially, the plans focus on preservation rather than alteration. The distinctive skyline of the 1894 building will be conserved and, in some areas, restored closer to its original appearance.

First stage

These external works are the first phase of a broader programme to restore and modernise this historic building. More details about future stages will be announced once architectural designs and plans have been approved.

Jill Swift, Senior Construction Project Manager at STFC said “The Royal Observatory is a landmark cherished by staff, scientists, students and the local community. This project is about honouring that legacy, preserving the building’s heritage while making sure it remains a vibrant centre for innovation, collaboration and scientific discovery.”

The investment will ensure ROE continues to play a leading role in the UK’s space and astronomy research ecosystem while protecting a landmark that forms an important part of Edinburgh’s cultural and scientific heritage.