Southwark confirmed to the AJ that a hole running directly alongside the practices 27-storey EDGE tower, which is currently being built on Fenning Street, appeared on 6 January.The cause of the sink hole is unknown and the council has added in a statement that it is monitoring the situation along with Mace, the site contractor.A council spokesperson said: The exact cause of the sinkhole remains under investigation and when the investigation is concluded, we will share findings.AdvertisementThe councils engineering services are in close liaison with the team from Mace [and] Work at the construction site continues with the hole being continually monitored seven days a week.Mace is also carrying out stabilising works and repairs, which Southwark said could take weeks. The entrance to the construction site is understood to have been relocated.The hole was visible to passers-by up until last weekend when hoardings were put up around the site, Southwark News reported. The same local news outlet shared pictures of the hole swallowing the entrance to the construction site.Pilbrow & Partners, which did not respond to the AJs request for comment, secured approval for the 27-storey EDGE tower from Southwark Council in 2021.The scheme replaces a former Home Office building near London Bridge station. Dutch developer Edge is backing the project.AdvertisementPilbrow & Partners' plans for EDGE London Bridge