The parish of Felmersham and Radwell is almost encircled by the river Ouse as it winds its way through the north Bedfordshire countryside. Access to Radwell from the south is over a six arched stone bridge built in 1766 and is one of several stone bridges in the north of the county. Whilst the bridge carries all the local traffic with no weight restriction it does have a blind spot which is a regular cause of road accidents. Several times a year the Ouse valley and local approach roads flood, cutting off access to Radwell from the south.

Radwell has a village green which is triangular in shape with thatched cottages on two sides and the Swan Pub, an ideal spot to have a summer drink.

There are 82 dwellings in Radwell making it a relatively small village and it is often referred to as a hamlet. Many of the properties are in Moor End most of which are modern bungalows and houses with a few Victorian houses and older stone and brick cottages.

Radwell has always been a small community but even so it did have a church. In 1608 it is recorded that during a walk round the parish bounds by the vicar and villagers one of the land marks mentioned was St James Chapel (Radwell). Nothing remains of the building which was near Hall farm. During the 19C non-conformist revival a Methodist Chapel was built in Radwell in 1807, it still stands in Moor End but it has been converted to a house.

There are several walks in the area and a circular walk centred on Radwell.