Arthur Langdon records eight Cornish crosses and two cross bases in the parish. Four-hole Cross is located by the main Launceston to Bodmin road close to the milestone showing eight miles to Bodmin. The shaft is ornamented on all four sides. The other crosses are three in the vicarage garden, another in the village, another in the churchyard, and others at Hilltown and Newtown. The manor of St Neot was recorded in the Domesday Book when it was held by Odo from Robert, Count of Mortain; it had been held by Godric the priest before 1066. The Count had taken this land away from the clergy of St Neot. There was one hide of land which never paid tax and land for 5 ploughs. There were 1 plough, 3 serfs, 3 villeins, 6 smallholders, 2 cattle, 2 pigs and 30 sheep. The value of the manor was 5 shillings though it had formerly been worth £1 sterling. The priests of St Neot had only one acre of their former land. There were 4 smallholders, 1 ox, 10 goats and 20 sheep. During the English Civil War St Neot was staunchly Royalist. To commemorate this, each year on Oak Apple Day, an oak branch is mounted on the top of the church tower to symbolise the historical allegiance. John Anstis, born and buried at St Neot, was an English officer of arms and antiquarian who rose to the highest heraldic office in England and became Garter King of Arms in 1718. Henry Dangar was a native of St Neot who became a surveyor and explorer of Australia.
The original dedication may have been to 'St Anietus', with whom the Saxon Neot has been confused. In the 11th century a small monastery existed here; the early medieval church building must have been smaller than the one in existence today. Rebuilding in granite was undertaken in the 15th century and the fine stained-glass windows are from about 1500. The stained glass is partly original and partly from a restoration done by John Hedgeland, c. 1830. There are 16 windows of 15th- or 16th-century workmanship unless indicated: 1: the Creation window; 2: the Noah window; 3: the Borlase window; 4: the Martyn window; 5: the Motton window; 6: the Callawy window; 7: the Tubbe and Callawy window; 8: an armorial window ; 9: the St George window ; 10: the St Neot window ; 11: the Young Women's window ; 12: the Wives' window ; 13: the Harris window; 14: the Redemption window ; 15: the Acts window ; 16: the chancel window depicts the Last Supper. Nearby is the holy well of St Neot. Legend tells that the well contained three fish, and an angel told St Neot that as long as he ate no more than one fish a day, their number would never decrease. At a time St Neot fell ill, and his servant went and cooked two of the fish; upon finding this, St Neot prayed for forgiveness and ordered that the fish be returned to the well. As they entered the water, both were miraculously returned to life. ;Gallery
Other notable buildings
Two 15th-century bridges are at Pantersbridge and Treverbyn. Lewarne is a neo-Tudor country house built for the Grylls family in 1869. Treverbyn Vean is a Victorian mansion designed for Colonel Charles Sommers Cocks by two of the greatest Victorian architects, George Gilbert Scott and William Burges. A. G. Langdon records six stone crosses in the parish, of which three are at the vicarage.
No railway was ever built to the village, despite pressure from local people and mine owners in the 1860s and 1870s. Instead, Doublebois railway station was opened on 1 June 1860 about two miles south of St Neot on the Cornwall Railway main line. In 2004 and 2006, the village of St Neot won the National Calor Village of the Year award. St Neot also won the Calor Gas Village of the Decade award, which celebrated 10 years of the competition The nearby Carnglaze Caverns, a former slate quarry, forms an unusual music venue.