Park Street has a petrol station, several tyre and automotive service businesses and two food-serving public houses; it is of late and initially disparate medieval origin.

Residents are mainly employed in nearby cities; east of the street in Frogmore is a substantial business centre and light industrial estate.

[3] Most significant to this area would have been the passing trade for villagers to sell ale and produce along Watling Street, and easy access to the markets in St Albans.

Queen Elizabeth I's spy master Sir Francis Walsingham lived at nearby Old Parkbury, south of the village which was the manor house.

It was a goods line in brief use but closed by 1910, called the Park Street Branch and was operated by the Midland Railway.

The railway bridge near Sycamore Drive was demolished around 1948 after being damaged by a giant propeller being delivered to the Handley Page aircraft works.

Beyond the bridge over the River Ver this line crossed what became the Handley Page aircraft factory runway.