Its geographical location on the A367 south of Bath has resulted in it being an important base for services for the population centres of the old Somerset Coalfield area, for which it hosts the police and fire stations and the local further education college.

The Fosse Way Roman road originally ran through this area, between what is now Radstock and Midsomer Norton.

[2] By the early nineteenth century Westfield still consisted mostly of rural land and coal mining works, with little residential development.

[12] Despite modernisation in the early 1960s, the pit lapsed into unprofitability due to local geological difficulties and manpower shortages.

The Westfield Trading Estate is home to many national and local businesses, including Jones Convenience Stores and the Midsomer Norton, Radstock & District Journal.

The parish council is based in the Oval Office in St Peter's Business Park in Westfield.

This was converted in 2011 into the Five Arches Greenway cycle path that connects Radstock with Norton Hill School, in partnership with Sustrans.

[21] Most of the parish consists of residential and industrial development, but at the southern end of the parish below Westfield Trading Estate lies Waterside Valley, where a stream runs through an area of farmland, scrub and an overgrown coal tip north-west of the village of Haydon.

[23] Just outside the Westfield parish boundary lies St Benedict's primary school, actually part of Somerset.

[26] Westfield House, on the Wells Road, was built around 1830 and later in the nineteenth century was used as an isolation hospital for smallpox patients.

[30] A corrugated iron Edwardian reading room, later used as a snooker hall, was demolished in 2014 to make way for housing.