A programme of building recording was carried out by the Colchester Archaeological Trust in November 2013 on building LEC 3 at the decommissioned Le Cateau Barracks on Colchester Garrison. Building LEC 3, which became known as the Sergeants’ Mess towards the end of the 20th century, was originally constructed as Officers’ Quarters for the 19th-century Artillery Barracks. LEC 3 is a Grade II listed brick building dating from 1874-5, with extensions and alterations dating to 1904 and 1922-62. Subsequent to the 2013 recording, the Officers’ Quarters suffered a substantial fire in April 2014, causing extensive damage to much of the interior and destroying many of the original fixtures and features for which the building was so notable. A secondary programme of building recording was undertaken in December 2019 to establish the extent of the damage and to record the degradation the building has undergone in the intervening six years since the original survey.<1>