Couple more, May & July 2014 and Apr 2015. Looks to have been the St Thomas' Hospital East Wing Cladding Project.
https://www.hopkins.co.uk/projects/6/170/
The East Wing is a thirteen storey tower in the centre of the St Thomas' Hospital site. It is situated on the south side of the river Thames, opposite the Houses of Parliament and to the North of Lambeth Palace. The tower was built in 1966 and contained over 200 beds, together with catheter suites, clinical offices, teaching facilities and other ancillary plant and stores, but it suffered from water ingress problems, excessive solar gain and inadequate lift capacity.
Guy's and St Thomas' NHS Foundation Trust organised a competition in 2010 to solve these functional requirements and address the building's impact on the wider urban fabric through a high quality architectural solution.
Our competition-winning scheme retained all of the existing façade (made of natural slate, teak and stainless steel) in order to minimise any disruption to the ongoing operation of the hospital. To solve the problems with the existing façade, a layer of glass was added to create a double skin façade with timber louvres in the cavity to control solar gain.
On the rear of the building, the glazing has been taken across the corners of the T-shaped block to create two triangular atria. These atria provide additional space for the bed lifts and help to give the building a new identity.