The Royal Observatory Greenwich to close for a major upgrade

The Royal Observatory at Greenwich is undergoing a major transformation, which they have named ‘The First Light’ project.

First Light will see the Observatory’s interior and external spaces transformed through displays and interactives, alongside architecture, conservation and landscaping.

Architect's render of the future Royal Observatory
The vision (Photo: ©Jamie Fobert Architects)

The new galleries will showcase observatory’s impact on our everyday lives and highlight the wider scientific developments that have occurred over the observatory’s 350-year history. Objects, as well as tactile elements and evocative projections, will chart the evolution of astronomy as a discipline – and help to explain complex scientific concepts.

You can see details of the transformation here.

All of this construction work will take some time to complete. It began in autumn 2025 and won’t be fully finished until spring 2028.

Architect's cross-section of the Great Equatorial Telescope Building with its proposed new access staircase
The Great Equatorial Telescope building with a new access staircase (Photo: ©Jamie Fobert Architects)

It will mean the phased closure of parts of the site, starting with the south side of the site. The rest of the Royal Observatory, including the world-famous Prime Meridian line, historic Flamsteed House and Luke Jerram’s new artwork Mirror Moon, is open until 2 November 2026. It will then close until the summer 2027 when the revamped Meridian Courtyard should be ready to reopen.

You can check short and long-term closures in the near future here.

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Alastair

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I'm a specialist travel journalist writing about battlefield sites, technical museums, military history, transport infrastructure, electric vehicles, amazing engineering & architecture, industrial heritage… and where you can see it. I’ve been a travel editor & presenter since 1989, originally in local radio, then national & international radio (Classic FM) before moving online just before the millennium. I’ve been an active member of the travel creative community since 2010 and a regular speaker at social media travel conferences. I’m an accredited member of the British Guild of Travel Writers (former Chair & Vice-Chair). I am co-author of Bradt: D-Day Landings – A travel guide to Normandy’s beaches and battlegrounds.

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