On 5 September 1916 the 56th Division went back into the line during the Battle of Ginchy. 1/4th Londons were in brigade reserve along the Wedge Wood–Ginchy road, where they suffered casualties from shellfire while digging assembly trenches for the next phase of the offensive. This began on 9 September, when the battalion led the brigade's right hand assault. The crowded trenches were heavily shelled before they went 'over the top', at 16.45, but the battalion successfully pivoted towards its objective and followed the new-style creeping barrage. However, its objective was a trench that had either been obliterated or never existed, so the men overshot into the now-stationary barrage. When the barrage resumed advancing at 17.25, the mixed up companies of the battalion captured their second objective ('Beef' Trench). By now, both flanks were 'in the air' (particularly on the left, where the Rangers had been held up by the 'Quadrilateral'). After dark the main objective was only held by advanced parties while the rest of the battalion cleared an intermediate position ('Bully' Trench) in their rear. These advanced posts were withdrawn the following morning while the flanks were strengthened. The battalion was relieved from Bully Trench at midnight on 10/11 September. The total casualties over the five days were 20 officers and about 250 other ranks.