The Seedgrower's Almshouses
In the late nineteenth and early twentieth centuries Coggeshall's economy was dominated by two famous rival firms, both of which grew seeds for sale worldwide, and both of which were owned by members of one feuding family. Both firms are still active today, although neither is based in Coggeshall. One is now based just down the road in Kelvedon, and the other, now part of a much bigger multinational firm, is based in Peterborough.
The cache is placed outside a row of eight bungalows, built as almshouses using money left in the will of Ernest William King, founder of one of the two local firms. The almshouses are still owned and maintained by a charitable trust set up in his name. Once occupied by retired employees of the seedgrower, the bungalows are now available to retired local applicants. A plaque built into the right hand building commemorates Ernest King.
You are looking for a magnetic nano. Stealth may be required at certain times as some residents like to sit outside their bungalows and visitors often park on the verge here.
Congratulations to flutterbe- on being first to find!