The A274 is a major road running through mid Kent. The northern end of the road is in Maidstone, at the Wheatsheaf public house where it leaves the A229. The road then follows a south easterly route to Langley, where it changes to a south south easterly alignment through Sutton Valence and Headcorn, ending at a junction with the A262 in Biddenden. It is 12.37 miles (19.91 km) long.
The A274 was originally classified B2078 and was re-designated in the 1950s. The road has seen some upgrades to short sections at Park Wood (on the outskirts of Maidstone) and to the south of Sutton Valence.