Newark Castle Gatehouse project faces £1.5m budget increase after archaeological discoveries and chimney damage.
Newark Castle’s major Gatehouse transformation project could require up to £1.5 million in additional funding after unexpected archaeological discoveries and urgent conservation work caused delays on site.
Newark and Sherwood District Council’s Cabinet is being asked to approve an increase in the project’s capital budget, funded from the authority’s Change Management Reserve, to allow Phase 1 of the Castle Gatehouse Project to continue.
The project is intended to secure the future of Newark Castle, improve public access, enhance the visitor experience and protect the surrounding gardens and green space. However, the council says the work remains extremely challenging because of the historic importance and protected status of the site.
The castle is a scheduled monument, meaning groundworks are subject to strict archaeological controls. The castle itself is Grade I listed, while the gardens are Grade II listed. An archaeological watching brief is required for all groundworks, and parts of the historic structure can only be fully assessed once scaffolding is in place.
Over the last six months, two unexpected and potentially significant archaeological findings have been uncovered as part of the works.
The first was a medieval wall, thought likely to be a retaining wall. The discovery suggests the medieval castle may have been surrounded by a dry ditch rather than a moat. Further exploration in the area then revealed a pit at the base of two garderobe chutes, featuring detailed stonework and capped with a millstone.
The second discovery is a well located in the centre of the Gatehouse. The council says this is an unusual location and requires further investigation.
Both finds are now being researched by the archaeological team and academic experts, with the council saying they are expected to improve and update understanding of the castle’s history.
The project has also uncovered a separate structural issue. Now scaffolding has been erected to the full height of the Gatehouse, an inspection of its chimney has revealed a large crack and severe deterioration of the stonework. This means the chimney now requires a carefully documented rebuild to ensure it remains safe while being conserved for the future.
The council says these challenges have led to significant delays on site. It is continuing to work with the contractor to reduce the impact on both cost and programme.
A report says an additional budget of up to £1.5 million is anticipated to be required to deliver Phase 1 of the project, although the final figure will depend on detailed costings and linked funding streams. Opportunities to reduce the cost will continue to be explored.
Despite the proposed increase, the council says its contribution to the overall project remains at around 33 per cent once external funding is taken into account. The project’s Full Business Case is also said to demonstrate increased value for money, a strong benefit-cost ratio and improved social value outcomes.
The Gatehouse project officially launched in July 2025 after years of planning and funding work. Previous plans for the castle set out proposals to reinstate the Romanesque Gatehouse as a main entrance, create new gallery spaces, improve accessibility and enhance the gardens.
The wider scheme has also included plans for immersive galleries, interactive displays, improved routes through the gardens, a lift to make the Gatehouse more accessible, and new spaces for schools, community groups and visitors.
Earlier updates on the project had already highlighted archaeological work around the Gatehouse and the discovery of historic structures connected to the castle’s development. The latest report confirms that the discoveries have become a major factor in the timing and cost of the current phase.
The Cabinet will now be asked to approve the additional capital budget so the first phase of the project can be delivered.
