Leiston Abbey

The Context

Widely considered to have some of the finest surviving monastic remains in Suffolk, Leiston Abbey is one of the most completely preserved examples of a Premonstratensian monastery in England. Originally founded in 1182 near the coast at Minsmere, catastrophic flooding in 1363 forced the community to relocate the entire complex approximately five miles inland to Leiston, only to face yet another calamity when the new buildings burnt down.

Over the centuries, Leiston Abbey became a religious and cultural hub. However, like many monastic institutions, the abbey’s fortunes declined with the Dissolution of the Monasteries under Henry VIII and in 1537, Leiston Abbey was closed.

The Challenge

Despite its rich history and archaeological potential, local engagement with the abbey’s heritage has historically been low, and the wider locality faces significant social challenges. The abbey is also located just one mile from Sizewell Nuclear Power Station, where a new power station was scheduled for development.

Pro Corda, a music charity and the custodians of Leiston Abbey, invited DigVentures to collaborate on a multi-year project to better understand the site while simultaneously raising its public profile in light of an impending planning decision to redevelop the nearby nuclear power station.

The site had been sporadically excavated since the 1930s, but the results were poorly archived and largely unpublished. Pro Corda’s goal was to assess the potential impact of the new power station on the fragile remains of the abbey and its capacity to accommodate a substantial increase in visitor numbers.

What We Did

Through a mixed crowd and grant funded model, community participants completed a four-year programme of geophysical survey, archaeological excavation, and interpretation. This work helped reinterpret the site’s archaeology for future generations and increased public awareness of the abbey as a visitor attraction.

A final season of excavation at RSPB Minsmere provided a direct examination of the earliest phase of Leiston Abbey, including evidence of climate change impacts, such as inundation, and how these might inform the preservation of the current upstanding remains.

Our Impact

Carefully designed in close collaboration with all stakeholders, the project ensured that top-quality, CIfA-standard archaeological results were delivered alongside meaningful outcomes for heritage, people, and communities.

Through a programme of education and outreach, participants were trained to create, use, and interpret primary archaeological data, effectively co-creating the Leiston archive. To enhance accessibility and raise the site’s profile, we launched the world’s first open and instantly accessible digital archaeological recording system, Digital Dig Team. Additionally, we developed ‘CyberDig’, a simulated excavation and educational web app based on a child-friendly version of the digital recording system, which was used in local primary schools and site-based family events.

Over four seasons of excavation and survey, including the creation of a 3D photogrammetric (SfM) model of the upstanding building remains at both the original and relocated abbey sites, the project produced a comprehensive archaeological archive. This has enabled the site custodians to develop a long-term conservation and heritage asset management plan. The baseline data now allows for the monitoring of potential impacts from planned construction works or environmental change.

The Leiston Abbey excavation successfully engaged a diverse and wide-reaching audience, blending hyper-local engagement with regional, national, and international participation. Over 51% of visitors identified as local residents, while 48% had never visited the site before, showcasing the project’s ability to reach new audiences. Visitors spanned all age groups, with the average and median age being 35-44, considerably younger than is typical for community archaeology projects, and included individuals from all professional backgrounds.

The project website attracted an average of 45,000 unique visitors per month during the fieldwork, thanks to a dynamic blend of local signage, news, social media, radio, and email campaigns, which drew 70% of the audience. Meanwhile, structured and informal engagement opportunities on-site welcomed 3,464 visitors over eight cumulative weeks. Of these, 60% cited the dig as their primary reason for visiting, and 28% of non-local visitors stayed in paid accommodation, contributing to the local economy.

Participants engaged with the project at various levels of interaction, from casual trench-side tours and finds room visits to more immersive field school experiences benchmarked against National Occupational Standards. A virtual programme of daily films, blogs, and social media discussions, provided global audiences and those that could not access the site with a front-row seat to the archaeological process.

The Discoveries

The excavation at Leiston Abbey uncovered a wealth of material culture that has significantly deepened our understanding of the site, here are some of the exciting finds that we unearthed during our four seasons of excavation.

• The abbey at Minsmere was surprisingly posh! The bricks that were later moved to rebuild the abbey at Leiston date to the early 12th century, and would have been cutting edge technology for the area at the time.
• We know that these same bricks were moved to Leiston, because radiocarbon dating has shown that they date to the time of the earlier abbey, and building materials with exactly the same fabric were found at both locations.
• A papal bulla (a kind of seal) found at the site suggests that official documents from the Pope were coming to Leiston.