Old Heath is originally shown on the 1777 Chapman & Andre Historic Map, located on the south-eastern outskirts of Colchester. The heath is shown on this map to be an irregular shape, with an area of 22.81ha. The map shows a small number of buildings on the edge of the heath. However, as none of them are listed it is impossible to tell if they survived. On this map the heath is shown to be connected to Old Heath common on its eastern side. <1>

Old Heath is then shown on the County Series at 1:2500 Scale Epoch 1 Historic Map (1874-1887), which shows the heathin name, however it is difficult to see the size or shape of the actual heath. It may be that the heath has been overtaken by urbanisation and farmland, and the settlement that has been built has taken the name Old Heath. Due to this change it is no longer connected to Old Heath Common, which has disappeared at this point as well. In modern times the heath disappears completely, as the urbanisation from Colchester takes over the land. <2>