also improve access to the annual Wimbledon tennis tournament. Overall refurbishment and extension works to the station started in March 2009, and finished in late 2010. The shops formerly located on the eastern side of the street-level building were demolished and the site used for a new ticket office, relocated from the western side of the booking hall. A lift runs from the booking hall to platform level, making the station step free. A new standard Underground ticket gateline was also installed. Design changes Southfields Station and station are of almost identical original design, although a mirror image of one another, but both stations have since been altered. Southfields Station has changed the most due to high passenger traffic during Wimbledon Tennis. The left side of the staircase at Southfields was widened (with the extension being built out of wood rather than brick construction) the pillar in the left side of the staircase was originally an external feature. A second doorway was opened up to the west of the original doorway into the ticket office area and a short footbridge was built from the top of the staircase over the railway to Wimbledon Park Road. (In recent times the footbridge had been closed and used as a storage area but after London Underground took over the station they reopened it as an exit.) The southern end of the waiting room on the platform has been converted into a kiosk and the rest of the building is used for LUL staff accommodation. There is therefore no enclosed public waiting facility on the platform. After Southfields Station was transferred from British Rail to London Underground in 1994 a temporary ticket office was built to the west of the station on a heavy steel frame above the track and the parapet wall of the bridge was removed to allow public access to the ticket office from the pavement whilst extensive alterations were carried out to the booking hall area. The temporary ticket office was taken down once no longer required and the brick parapet wall reinstated, but the steelwork was retained for several years and used to support a number of temporary structures in connection with later station refurbishment works before finally being dismantled in June 2013. The station platform undergoes a makeover each year to coincide with the tournament, funded by a particular company for advertising purposes. For instance, in 2006, the