In 1863, only a gunsmith and a shoemaker were listed in the trade directory. By 1898, when the population of Woolmer Green stood at 363 and that of Knebworth at 382, there were five shops including two beer retailers; no mention in the trade directory of the many 'front room shops'! This level of service persisted until recent years with a general store and Post Office, a baker, a small supermarket and a butcher. These have all now closed. The former Post office was later used as a hair salon, a furniture shop and a wedding dress and suit hire shop which was opened in early 2016.
