With close ramparts forming two or more lines, archaeologists describe the fort as a "large multivallate hillfort at War Coppice Camp".

Beyond this the second ditch has become completely infilled over the years but survives as a buried feature approximately 8m wide, visible as a terrace.

A 35m long section of a second ditch, which has become partially infilled over the years, survives 25m further out to the north east.

In the reign of King John, Roger son of Everard de Gaist gave this including its church lands to the monastery of Waltham Holy Cross.

His heirs sold them on the dissolution to Lord Berners who died in debt in 1533 resulting in bona vacantia and seizure by the Crown.

In 1570 Thomas Sackville, 1st Earl of Dorset (as Lord Buckhurst), later Lord High Treasurer, held the 'manor of Caterham and Portele farm,' which he conveyed in that year to Henry Shelley; Sir Thomas's Sondes's widow leased the lands in 1599 to her half-brother, Main Plot seditionist Henry Brooke, 11th Baron Cobham.

Sir Isaac Shard who was one of two Sheriffs of the City of London in 1730 who conveyed it to Thomas Clark and then passed as with the other manors; in 1911 W. L. Williams its owner lived at Portley in what remained of the estate.

[3] De Stafford School in Caterham on the Hill occupies a small part of the estate and is named after the earlier known owner.

In 1339 John de Horne released some land in Caterham (and more in Warlingham) to Roger Salaman, who at his death in 1343 was "seised of a tenement".

It was bought out of Chancery, into which it went on the death of Charles Day, by George Drew, who sold to members of the Horne family, who owned the relatively small estate in 1911.

[3] In 1544, the King granted the main rectorial manor was granted (in fee) to William Sackville JP[8] In 1553 William Sackville and Eleanor passed the manor to Robert Hartopp, goldsmith of London, dying two years later succeeded by Elias his son, who was left it to his nephew John, whose widow Joan sold the manor in 1609 to George Evelyn who gave it to his son Sir John Evelyn on his marriage to Elizabeth Cocks.

Taxing (costs) judge George Henry Drew held the main lands and title followed by W. L. Williams in 1911.

James Legrew in the early 19th century the church tithes were commuted for £400, retaining a glebe of 5 acres (2.0 ha).

[11] Two main streets (there is only one road called High Street – Caterham on the Hill) therefore serve two very close yet substantial and affluent communities (see demographics), one with the railway station and more modern buildings, one with more historic buildings as soon as the closest hill (to the northwest) is climbed from the heart of Caterham Valley.

[12] In 1975 an IRA bomb exploded in the Caterham Arms public house injuring 10 off-duty soldiers and 23 civilians.

The pub was popular with the Welsh Guards, who had recently returned to Caterham Barracks after serving in Northern Ireland.

[17] Caterham on the Hill has three wards, Portley, Queen's Park and Westway, each electing three parish councillors.

[26] Caterham and Warlingham Urban District Council continued to be based at Soper Hall, and also acquired a large house next door at 1 Harestone Hill to serve as additional office space.

The new building in Oxted was funded by the sale of most of the old Caterham and Warlingham council's properties around 1 Harestone Hill to make way for part of a retail development called Church Walk, with only Soper Hall being retained.

This elevated area carries on west until Hooley/Old Merstham and forms a very narrow, fairly steep ridge south of Caterham Valley's centre; east of the centre of Caterham Valley are marginally higher rolling pastures of the North Downs on top of a more crevassed smaller mass of upland which forms the village of Woldingham followed by a much larger area of upland stretching from Biggin Hill to Downe and Knockholt, Kent.

[39] While earlier cretaceous clays and greensand and sandy material, underlying, is evident where terrain has eroded, 90 million years ago the North Downs hard chalk was deposited, a white limestone comprising over 95% calcium carbonate.

[2][40] The North Downs Way, a National trail popular with walkers, passes very close to the town and is readily accessible from either Harestone Valley Road or Tupwood Lane, the Celtic hillfort promontory of the Downs mentioned above, The Cardinal's Cap, and Fosterdown or Pilgrims' Fort, a London Defensive Fort at the top of part of the ridge forming Godstone Hill, in Caterham Valley.

[7] Whitehill Tower is a folly built south west of the town, alongside War Coppice Road, by local landowner Jeremiah Long in 1862.

[41][3] The civil parish of Caterham Valley has the more developed shopping area presenting the main town centre for the whole community and has a population of 7,581.

Traffic to and from the London and Croydon to the north heading towards the M25 motorway is routed around the town on the A22 over the Caterham Bypass, opened in 1939 as one of the earliest such roads in the country.

North Downs Hospital is small private establishment on the outskirts of the town run by the Ramsay Health Care UK.

The proportion of households in the civil parish who owned their home outright compares to the regional average of 35.1%.

Long before the Valley Hotel was built (to cater for visitors arriving on the new railway trains) there used to be a tennis court, croquet lawn, rose garden, fountain, and Mr. Woollet's nursery.

[59] A children's ball pit and gymnastics centre are situated in the old Caterham Barracks housing estate.

[68] Notable sportspeople from Caterham include the footballers Nicky Forster and David Price and cricketer Dar Lyon, all of whom were born in the town.