Still no start for Wren Nest Mill repairs

A long-running sinkhole issue at Wren Nest Mill in Glossop is still awaiting full repair works, despite assurances last year that work would begin imminently. 

The Glossop Chronicle last reported on the issue in July 2025, when a multi-agency meeting was held on site to coordinate essential repairs. At the time, building managers Premier Estates said “All parties now have a clear understanding of the scope of works, their respective responsibilities and the level of coordination required moving forward.” 

However, residents are left waiting, with no major physical repair work yet started. 

The Glossop Chronicle contacted Premier Estates who issued the following statement: 

“We recognise how unsettling and frustrating this situation has been for residents, particularly given the length of time it has taken to reach this stage. Resident safety has been the absolute priority from the outset, and that has guided every decision taken at Wren Nest Mill. 

“Throughout 2025 and early 2026, a comprehensive programme of investigation and monitoring has been carried out at the mill and on neighbouring land following the discovery of an uncapped borehole dating back to the 1940s, which led to the formation of a sinkhole. This level of investigation has been necessary to fully understand the ground conditions and to ensure that any solution provides a safe and long-term resolution. 

“A multi-disciplinary team is now in place, including structural and geotechnical engineers, project managers and specialist contractors. Movement in the mill structure is being monitored continuously and reviewed daily. As a precaution, the building remains secured with structural ties, and a small number of apartments in the affected corner of the mill remain vacant. 

“The project is in a final preparatory phase ahead of physical works commencing. Current activity is focused on the redirection of utilities and services, agreeing a traffic management plan with Wren Nest Retail Park, meeting building control and listed building requirements, and confirming that ground conditions around the sinkhole can safely support the start of physical works. 

“Subject to the completion of these final steps, work is expected to begin on site over the summer. This will involve adding additional structural support to the affected corner of Wren Nest Mill and stabilising the ground through grouting and piling. These works will be followed by repairs to reinstate the mill structure, which are likely to extend into 2027. 

“While the project involves significant complexity and a number of stakeholders, we are confident that the investigations undertaken and the planned works will deliver a permanent solution and allow the building to move forward safely. 

“We will keep all residents updated with regular communications throughout this process and are happy to be contacted at any time.” 

The sinkhole, which has developed over several years, has significantly increased in size. A visible structural crack at the historic mill, which dates back to 1848, has also added to ongoing safety concerns.