The CM7 3 postcode sector is within the county of Essex in the East of England.
CM7 3 is a postcode sector within the CM7 postcode district which is within the CM Chelmsford postcode area.
The Royal Mail delivery office for the CM7 3 postal sector is the Braintree Delivery Office.
The area of the CM7 3 postcode sector is 0.80 square miles which is 2.06 square kilometres or 509.87 square acres.
The CM7 3 postcode sector is crossed by the A120 Major A road.
Waterways within the CM7 3 postcode sector include the River Brain.
The CM7 3 postcode sector is crossed by a railway.
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