From Chelmsford, Queen Street (Red Lion PH) bus to Brentwood, High Street (Argos). 32 min £4. From Chelmsford train to Shenfield Railway Station then line 81 bus to Brentwood, High Street (Greggs). 52 min £9. From Chelmsford taxi to Brentwood. 15 min £48. From Chelmsford drive to Brentwood. 15 min £2.