A 55-year-old man attends your general practice for review of home blood pressure readings. Over the past 6 months he has implemented dietary change, reduced alcohol intake and increased exercise. He is a non-smoker with no diabetes, chronic kidney disease or cardiovascular disease. His averaged clinic readings over three separate visits are around 150/96 mmHg. His calculated 5-year absolute cardiovascular risk is 7%. According to current Australian hypertension guidance, what is the most appropriate next step?