Ecgi slaed was originally an ancient British upland farm complex owned by Ecgi and set in the valley today occupied by Exlade Street.
Exlade is also recorded variously as Hekeslad (1241) Egesflade (1278) Eggeslade (1285) Egeslade (1360) Egslade (1366) and Egguslhade(1406),
By the later medieval period, 'street' was often used to describe straggling villages in areas of late woodland clearance. Such places as Exlade Street in the Chilterns and Paley Street east of Reading are instances.
Evidence of the activity of early man in the area was found when a Neolithic flint tranchet axe/adze (5 1/2 inches long)dating from circa 3,000 BC was dug up in the garden of Mulberry Cottage and this is now held in Reading Museum.
Early references show an Exlade Street resident- John de Eggeslade recorded as a Witness at the Oxford Coroners Court Friday, 8 June 1324  John was obviously a popular Exlade Street name as another John de Eggesalde is also recorded in the Benson Manor rolls in May 1400 standing bail for William Shaldeston - who had been excommunicated by, Henry, Bishop of Lincoln.
In 1323 Walter son and heir of Peter Cock' of Checkendon to Sweyn de Mortele and Alice his wife: Grant of rents from tenements in Exlade, in South Stoke (Eggeslade in Stoke Abbots) (it is speculated that Cocks Hill in Exlade Street may have got its name from the family of Peter Cock who owned land in Exlade Street and Checkendon) and 1362 sees the sale of land in Eggeslade by Henry de Aldrynton' and Elizabeth, his wife.
Dame Isabel Pryour, lady of Shiplake rent from Thomas Hoke, John Crouche, and John Passelewe of Egslade: a tenement called 'le Cokus' and land in Checkendon in 1399. The land Le Cokus may be the current Corkers Farm - which is located just above the Exlade Street
The Passelewe family also owned Payables farm and many worked as woodwards - who managed the woodland which surrounded Exlade Street and was owned by Eynsham Abbey. Abbot's wood is just east of Exlade Street comprising 348 acres and was given to Eynsham abbey in 1109, the abbey retained Abbot's wood, which first appears under this name in 1536,until the Dissolution, when it was given to Christ Church and became known as Abbotts or College wood 
Holly Shaw (a strip of woodland on the edge of the Hamlet) is another indication of the wooded nature of the land. Shaws, in the Oxfordshire Chilterns, were strips of woodland left as field boundaries after the clearance of woodland
In 1597, during the reign of Queen Elizabeth I, it was recorded that the vicar of South Stoke held services at St. Leonard's Woodcote only on Christmas Day, Easter Day and a few other days each year. Some worshippers travelled 3 miles (4.8 km) each way to South Stoke to go to church, but most preferred to travel less than 1 mile (1.6 km) to SS Peter and Paul in the adjacent parish of Checkendon. The law obliged everyone to worship in their own parishes, so since 1595 the Rector of Checkendon had prosecuted people from Exlade Street in the local archdeacon's court for coming to his church. In response the faithful of Exlade Street and Woodcote petitioned John Whitgift, Archbishop of Canterbury for permission to worship at Checkendon. Whitgift granted the request, so long as they continued to attend their parish church in South Stoke four times a year 
World War Two
Leslie Marcham - Private 4th Battalion, Oxford and Bucks Light Infantry - Died 30 May 1944 is recorded on the Woodcote War Memorial. Leslie worked for Mr Hignett at Hook End Farm, Checkendon before joining up. He was already a member of the Territorial Army and is believed to have been one of the first local boys to be called up for active service. His family lived in Exlade Street, Checkendon opposite the Greyhound (now the Highwayman).
RAF Woodcote In September 1941 the RAF announced that four new Equipment Dispersal Depots were then under construction and that No.70 Woodcote was one of them it was to be placed in No.40 Group, Maintenance Command. A Headquarters Site and 3 separate sites, one to three miles apart and not unduly conspicuous from the air and therefore difficult to attack, needed to be built. The attraction of the local area was the ancient beech woodlands on the edge of the village, most of which was owned by Christ Church, Oxford. The woodland provided a natural camouflage from the air. A total of over 176 acres of mixed woodland and open pasture bordered by some 7 miles of winding country lanes was requisitioned on compulsory leases from a number local landowners on a total compensation rental of £100 pa. Site 3 covered 63½ acres on the edges of the road to Exlade Street. The site to the west of the road and also bordering Deadmans Lane was owned by Christ Church, Oxford University, whilst the site to the east was owned by Lawrence Hignett of Hook End Farm. The initial establishment was 8 RAF Officers and 476 civilians and during the next few months the civilian establishment was increased to 755. the role of this Unit was to hold a range of stores for the use of the RAF. Evidence of the huge amount of equipment, stores and buildings hidden in the local woods can still be seen in Abbey Wood with large concrete foundations, water storage tanks and blast shelters.
Exlade Street currently has 12 private houses and an excellent Pub. Many of the houses are grade 11 listed and started life as Farms and Farm/Woodland workers cottages. Carter's Cottage, the oldest building surviving in Exlade Street is a Cruck cottage that dates from before 1550.
Exlade Street has a public house, The Highwayman Inn, (formally called The Greyhound) whose building also dates from the 16th century.
The Hamlet used to be larger but it is known that two houses burnt down in the early part of last century. The Exlade Street Blacksmiths forge previously stood in the car park of the Highwayman pub and several large barns existed for the storing and working of wood from the local area. It is estimated by the South Oxfordshire Archaeological Group (SOAG)that up to 30 extra buildings existed. In the 1980s SOAG’s founder, Cynthia Graham Kerr, researched the buildings and landscape of Exlade Street. SOAG and The Oxfordshire Woodland Group are now leading a new multipart project, which includes: searching for lost buildings; understanding how local timber buildings were constructed and studying how the local woodlands were exploited for these purposes, in particular how extant sawpits were used to convert timbers.
- Lobel, 1962, pages 93–112
- Margaret Gelling, The Place-Names of Oxfordshire, Part 1 (EPNS 23), Cambridge 1953
- The Place-Name Evidence for a Routeway Network in early Medieval England, Ann Cole - Kellogg College Oxford 2010. page 28
- Reading Museum Archaeological Notes - 65;60
- Emery, 1974, page 96
- Records of Medieval Oxford; Coroners Inquests page 27
- A History of the Manor of Bensington (Benson, Oxon): A Manor of Ancient Demesne
- E 210/6348 National Archives Kew
- Feet of Fines: CP 25/1/190/21, number 66
- National Archives Kew DL 25/1647
- Mediaeval Woods in the Oxfordshire Chilterns. By P.C. PREECE
- Lobel, 1962, pages 93-112
- Woodcote War Memorial Project - Mary Hulbert
- history of RAF Woodcote 70MU 1941 -1959 By Mr Mycetes.
- Emery, 1974, page 115
- The Highwayman Inn
- South Oxfordshire Archaeological Group