Details of TfL’s proposals for Grosvenor Place can be found on the following webpage: https://consultations.tfl.gov.uk/roads/grosvenor-place/consult_view/
"We are proposing road safety improvements on Grosvenor Place between Duke of Wellington Place and Wilton Street. Our proposals include new pedestrian crossings at the top of Grosvenor Place and measures designed to reduce collisions involving turning vehicles."