Osterley House (NT)
High rise apartments close to the Twickenham border
Isleworth shown within Greater London
|Area||8.31 km2 (3.21 sq mi)|
|Population||25,008 (Isleworth, Osterley and Spring Grove wards 2011)|
|– density||3,009/km2 (7,790/sq mi)|
|OS grid reference|
|Ceremonial county||Greater London|
|Sovereign state||United Kingdom|
|UK Parliament||Brentford & Isleworth|
|London Assembly||South West|
Isleworth () is a small town of Saxon origin sited within the London Borough of Hounslow in west London, England. It lies immediately east of the town of Hounslow and west of the River Thames and its tributary the River Crane. Isleworth's original area of settlement, alongside the Thames, is known as 'Old Isleworth'. The north-west corner of the town, bordering on Osterley to the north and Lampton to the west, is known as 'Spring Grove'.
Isleworth's former Thames frontage of approximately one mile, excluding that of the Syon estate, was reduced to little over half a mile in 1994 when a borough boundary realignment was effected in order to unite the district of St Margarets wholly within London Borough of Richmond upon Thames. As a result, most of Isleworth's Thames-side is that part overlooking the 3.5-hectare (8.6-acre) islet of Isleworth Ait: the short-length River Crane flows into the Thames south of the Ait, and its artificial distributary the Duke of Northumberland's River west of the Ait, one of two Colne distributaries constructed for aesthetic reasons in the 1600–1750 period.
The pronunciation of the first syllable of the place has no relation to any 'isle', see the person's name below from which it derives, and is an instance of a counterintuitive place name within Greater London, alongside Greenwich, Southwark, Marylebone, Plaistow, and often Holborn.
- Etymology 1
- Roman and Anglo Saxon 2.1
- Granted to St Valeri Barons 2.2
- Transfer to Duchy of Cornwall 2.3
- Advowson, right to appoint the vicar 2.4
- Transfer of Manor to Syon Monastery 2.5
- Granted to Duke of Somerset 2.6
- Acquired by Earl of Northumberland 2.7
- Georgian and Victorian times 2.8
- 20th century 2.9
- Geography 3
- Hospitals 4.1
- Secondary schools 5.1
- Primary schools 5.2
- Churches 6
- Routes 7.1
- Road passenger services 7.2
- Rail passenger services 7.3
- River passenger services (history) 7.4
- Notable residents 8
- Fictional residents 9
- Notable houses 10.1
- Demography and housing 11
- Adjacent towns or districts 12
- References 13
- Further reading 14
- Gallery 15
- External links 16
|695||Gislheresuuyrth||an Anglo-Saxon charter.|
|1086||Gistelesworde||The Domesday Survey|
|1418||Thistelworth||Plea Roll of the Court of Common Pleas|
|Yhistelforth||George James Aungier, in "History of Syon Monastery, the Parish of Isleworth and the Chapelry of Hounslow", 1840|
|Istelworthe||An assize document in the reign of Elizabeth I|
|1554||Thyslyworth||Plea Roll, Court of Common Pleas.|
|1593||Thistleworth or Gistelesworth||Norden and Lysons, historians|
|1702||Istleworth||Shown on a memorial in the parish church.|
|1742||Isleworth||Title of an engraving by Thomas Priest.|
Roman and Anglo Saxon
Excavations around the eastern end of the Syon Park estate have unearthed evidence of a Romano-British settlement. 'Gislheresuuyrth', meaning in Old English Enclosure belonging to [a man called] Gīslhere, is first referred to as a permanent settlement in an Anglo-Saxon charter in the year 695. The Domesday Book says that during the reign (1042–1066) of Edward the Confessor the manor belonged to Earl Algar (Anglo-Saxon spelling probably Ælfgār), and a modern road off South St today carries his name.
Granted to St Valeri Barons
Isleworth was a well-cultivated farming and trading settlement, more valuable than many of its neighbours, stretching from the Middlesex bank of the River Thames west to the centre of Hounslow (including the land of later Hounslow Priory) and as far as the borders of Southall (in Hayes parish at the time) at the time of the Norman Conquest in 1066. The Domesday Book (1086) as Gistelesworde records its 55 ploughlands, 118 households and amount rendered, £72 per year, to its feudal system overlords. After the Conquest, successive Norman barons of the St Valeri family held the manor of Isleworth but there is no evidence that they ever lived there – it being held as a source of revenue and power. One of the later barons gave several manorial rents and privileges to London's Hospital of St Giles. He also gave the church and advowson to the Abbey of St Valeri, which stood at the mouth of the Somme in Picardy.
Transfer to Duchy of Cornwall
In 1227, when he took control of England from his childhood regents, Henry III seized Isleworth and other property of the St Valeri family and gave the manor to his brother, Richard, 1st Earl of Cornwall. He built a new moated manor house, which is described in the Black Book of the Exchequer – having a tiled roof, chimney, two bedchambers, and an inner courtyard. Beyond the moat was an outer courtyard with a number of buildings for servants and supplies, and a short distance away was a watermill. The exact location of this house is not recorded, but a report of an area long ago known as 'Moated Place' puts the likely place between the Northumberland Arms and Twickenham Road, with the watermill being near Railshead, on the River Crane (not where the traditional Isleworth mill 'Kidd's Mill', because the stream there is artificial and did not exist at that time). The seemingly classic medieval manor house was burned down during the Second Barons' War in 1264.
Advowson, right to appoint the vicar
The Abbey of St Valeri in Picardy held the livings (
- Hounslow Council
- The Isleworth Society
- Isleworth links on British History Online
- Isleworth St John's Residents' Association
- Coalition of Isleworth Community Groups dedicated to helping local people, trade and industry in all aspects of growth and harmony across the many differing areas of Isleworth old and new
Canoe in front of All Saints, Isleworth and the Thames waterfront
Parkland section of the Duke of Northumberland's River
St Mary's Road, Osterley Road
Great West Road near the Gillette Tower, Gillette Corner
"A History of the Urban Districts of Heston and Isleworth" (Gill and Sons, London).
- Key Statistics; Quick Statistics: Population Density 2011 census Office for National Statistics
- National Archives; CP 40/629; http://aalt.law.uh.edu/H5/CP40no629/aCP40no629fronts/IMG_0798.htm with London, in the margin, and the plaintiff Thomas Brigge or Berigge, clerk, on a plea of debt, with Richard Beaupe of Thistelworth, Middx
- Thames Landscape Strategy, the Arcadian River Thames between Hampton and Kew
- 'And So Make a City Here' by G E Bate F.R.Hist.S. p68 published: Thomasons Hounslow 1948
- Domesday map Retrieved 2013-12-25
- Mills, A. D. (1996). Dictionary of English Place-Names, p.188. Oxford University Press, Oxford. ISBN 0-19-283131-3.
- 'And So Make a City Here' by G E Bate F.R.Hist.S. p68 publisher: Thomasons, Hounslow 1948
- 'And So Make a City Here' by G E Bate F.R.Hist.S. pp106/7 published: Thomasons Hounslow 1948
- Aungier, p.39; Rot. Parl. 9 Hen V, p.1,m.7
- Aungier, G.J. History and Antiquities of Syon Monastery, London, 1840
- Victoria County History, A History of the Co. of Middlesex, Vol.3, Syon House, pp.97–98
- The Greater London and Surrey (County and London Borough Boundaries) (No.4) Order 1993
- "Isleworth Ait". London Wildlife Trust. 2007. Retrieved 26 December 2010.
- The Workhouse – www.workhouses.org.uk
- Hospital Records Details The National Archives
- "Hospitals". Derelict London.
- The National Archives, as above page 55
- 'And So Make a City Here' by G E Bate F.R.Hist.S. p355 publisher: Thomasons, Hounslow 1948
- The history and antiquities of Syon ... – Google Books
- Alexander, Lucy (15 August 2008). "The late Tory MP Sir Ian Gilmours London home is for sale". The Times (London).
- David Attenborough
- Heston and Isleworth – Introduction | British History Online
- 'And So Make a City Here' by G E Bate F.R.Hist.S. p121 published: Thomasons Hounslow 1948
- Isleworth | British History Online
-  Archived 6 June 2015 at the Wayback Machine
- Heston and Isleworth – Roman Catholicism British History, the University of Portsmouth and others
- 'And So Make a City Here' by G E Bate F.R.Hist.S. p118 published: Thomasons Hounslow 1948
- 'And So Make a City Here' by G E Bate F.R.Hist.S. p261 published: Thomasons Hounslow 1948
- The Laird o' Thistle Etoile.co.uk Retrieved 2013-12-25
- "Strictly ballroom". The Times (London). 4 March 2007.
- 'And So Make a City Here' by G E Bate F.R.Hist.S. p262 published: Thomasons Hounslow 1948
||Heston||Osterley||North Brentford, Brentford|
Adjacent towns or districts
|Ward||Population||Households||% Owned outright||% Owned with a loan||hectares|
|Osterley and Spring Grove||13,031||4,796||29||33||634|
|Ward||Detached||Semi-detached||Terraced||Flats and apartments||Caravans/temporary/mobile homes/houseboats||Shared between households|
|Osterley and Spring Grove||420||1,900||467||1,981||4||24|
Demography and housing
- Kilmorey House (replaced St Margarets House in 1853). Built for 2nd Earl of Kilmorey but never lived in. Became the Royal Naval School for Girls (1856–1940). (Demolished 1950).
- St Margaret's House (Lacy House rebuilt and renamed) First Marquis of Ailsa.
Lacy House A 17th-century house rebuilt in 1750 for James Lacy, of Drury Lane Theatre.
Lacy's son inherited the property but his extravagance compelled him to sell the house, to the Hon. Sir Edward Walpole K.B. He bequeathed it to his daughter, widow of Bishop of Exeter, and after that it was acquired by the Earl of Warwick. After him came the famous playwright Richard Sheridan, who by then had already produced his two masterpieces School for Scandal and The Rivals. Lacy House was demolished in the 1830s.
- Keppel House First Lord of the Admiralty Augustus Keppel.
- In 1862 Francis Pears decided to expand his soap making business and bought land alongside the London Road for a factory. Another, larger, factory was opened along the opposite side of the road in the 1880s and soap was made on the site until 1962. His son Andrew bought the Spring Grove House estate in 1886 and greatly extended the house in 1894. Pictures are shown under 'Notable residents'.
- Spring Grove House Sir Joseph Banks Andrew Pears. (standing, Grade II)
- Gordon House, by the River Thames at Railshead Rd. (standing, listed Grade II*). General Humphrey Bland Lord James Hay Lord John Kennedy-Erskine. Lord and Lady Frederick Gordon Earl of Kilmorey Judge T C Haliburton MP. In Lord Hay's time this was named 'Seaton House', after his ancestral home in Aberdeenshire. It was next bought by King William IV at 8,000 guineas for his (illegitimate) daughter Lady Augusta, who married Lord John Kennedy-Erskine of Dun, the son of the First Marquis of Ailsa who lived next door in St Margaret's House. Gordon House is being renovated.
Shrewsbury House lay to the east of Upper Square, in the area known as Lion Wharf, once Beck's Wharf, also Shrewsbury Wharf. The 14th Earl inherited the lease in 1719 and later by Act of Parliament gained full rights to the property (in exchange for certain fee-farm rents) from an almshouse charity established by a former landlord, Sir Thomas Ingram, from whom the 1st Duke of Shrewsbury had originally leased the site. Around 1778 the 14th Earl started the process by which the house converted to a school for boys of Roman Catholic parents.
- Shrewsbury House George Talbot, 14th Earl of Shrewsbury
- Gumley House John Gumley (Commissary-General to the Army) The Earl of Bath (Gumley's son-in-law) General Lord Lake.
- Little Syon (formerly Cromwell House) Sir Richard Wynn Bt. (Demolished 1818).
- Isleworth House Sir William Cooper, chaplain to George III. Renamed Nazareth House in 1892 when it was established as the present residential nursing home and convent. (standing)
- Countess of Charleville's Villa Harriet Charlotte Beaujolais (Campbell), Countess of Charleville.
- Gunnersbury House. (At the junction of Bridge Road and London Road) (Demolished c. 1972).
- Somerset House
- Kendal House. (Twickenham Road, near Mill Plat) Duchess of Kendal (mistress to George I).
- Silver Hall No. 2 (North of North Street) Joseph Dixon. (Demolished 1950)
- Silver Hall No. 1 (South of North Street, with four acres) [1.6 hectares] Sir John Smith Bt, Privy to William & Mary Lady Harcourt, widow of Sir W Harcourt, Chancellor (Demolished 1801)
- Syon House Duke of Somerset Duke of Northumberland. (standing, listed Grade 1) Although this grand house has had a close connection with Isleworth for 450 years, it has very grand architecture as the only non-royal ducal main home ('seat') in Middlesex. It is chronicled in an exhaustive history.
A period of intense mansion-building occurred in the 18th and 19th centuries. There was a triple attraction to the area in those times. Its rural, waterside beauty had become well recognised over two hundred years or so, and a few palaces, monasteries and mansions already existed. Then the royal court began to appear at Kew, so the adjacent districts on both sides of the Thames became very fashionable places for the rich and famous to build their grand homes. Some of the cachet dropped away when the court eventually left Kew; most high-quality here survived well The Blitz and social turmoil to enable many to reach grade II* (the mid category) of architectural listed building.
- In the ITV television series, Agatha Christie's Poirot, Isleworth is often mentioned as the home town of Chief Inspector Japp.
- Presenter Fiona Phillips lives in Isleworth.
- Author Ellen Edith Hannah Redknap (1906–1991) lived at Worton Way and wrote under the name of Erroll Collins. She was active during the 1940s, specialising in adventure and science fiction for boys.
- Vince Taylor (1939–1991), British rock and roll singer and main inspiration for David Bowie's Ziggy Stardust persona, spent his early life in Isleworth.
- Actor William Hartnell, best known as The First Doctor in Doctor Who from 1963 to 1966, lived opposite the London Apprentice pub from the 1920s, next door to his guardian, the art collector Hugh Blaker.
- David Attenborough (1926 – ) Born in Isleworth. His career as the face and voice of natural history programmes has endured for more than 50 years. He is best known for writing and presenting the nine Life series, in conjunction with the BBC Natural History Unit.
- Ronald Chetwynd-Hayes (1919–2001) was born in Isleworth. For over 30 years, R. Chetwynd-Hayes published more than 200 Short Stories, 8 novels, and over 20 Collections – as well as editing 24 anthologies including many of the Fontana Ghost Stories series of anthologies.
- Jack Simmons (1915–2000), historian, was born in Isleworth. In 1947 he became the first professor of history at University College, Leicester, which became the University of Leicester in 1957. He was the university's acting vice-chancellor from 1962 until 1975.
- Walter R. Booth (1882–1938) creator of the first British animated cartoon film, The Hand of the Artist, constructed his own outdoor studio in the back garden of Neville Lodge, Woodlands Road, Isleworth in 1906 with Harold Bastick as his cameraman. At least fifteen films a year were made up to 1915, after which he entered the publicity film market, making advertising shorts for Cadbury.
- Arthur Penty (1875–1937) an architect and writer on guild socialism and distributism lived in Church Street, Old Isleworth (1926–1937). He is commemorated by a blue plaque.
- Eileen Sheridan, a supreme champion English cyclist of the 1940s & 1950s, lived in Church Street, Old Isleworth for many years.
- Andrew Pears was the third generation head of the Pears Soap business located in Isleworth and in 1886 he bought Spring Grove House (mentioned above). He rebuilt it in 1892/94 on a grander scale, retaining the structure, facing the building with new red brickwork, and adding large rear extensions. This created a sizeable mansion, most of which still stands. The house is now part of West Thames College.
- Post-impressionist artist Vincent van Gogh moved to Isleworth in 1876 to become a teacher and assistant preacher at a local school. A blue plaque exists on the house he lived in alongside Twickenham Road.
- Ian Gilmour, who became 3rd Baronet of Craigmillar, was Secretary of State for Defence and Lord Privy Seal during the 1970s. He lived at the current Ferry House, on the same site as above, for fifty-three years until his death in 2007.
- In 1804, William Turner lived for a short time in Sion Ferry House in Isleworth, where he drew inspiration from the picturesque banks of the River Thames. His paintings thereafter include the Houses of Parliament and Hampton Court from the Thames.
The images on the right show the house as it looked in 1810, and then in 1850.
- In 1779 Sir Joseph Banks, England's greatest botanist, took a lease on, and eventually bought, a house with thirty-four acres (13.76 ha) along the northern side of what is now London Road. It became known as 'Spring Grove House'. Although he also had a home in central London he spent much time and effort on his Isleworth property. He steadily created a renowned botanical masterpiece on the estate, achieved primarily with many of the great variety of foreign plants he had collected on his great travels around the world, particularly with Captain Cook to Australia and the South Seas. Banks died in 1820, and over the next thirty years the house was considerably modified and enlarged by a new owner, Henry Pownall, who then sold the estate in 1850 for partial redevelopment.
- Peter Oliver (1594–1648), watercolour copyist and miniature portrait artist, lived in his native Isleworth. He painted many figures at the courts of Kings James I and Charles I.
1952 Typical pleasure boat of the mid-20th century seen here from Isleworth Promenade.
1947 Rails-head Ferry still existed, more than fifty years after the nearby footbridge had been built.
1840 George J Aungier: "There is a ferry, called Church Ferry, for foot passengers, from the church over the river to West Sheen, Kew, &c. and another at the southern extremity of the village, called Rails-head Ferry."
River passenger services (history)
Nearest London Underground stations
Nearest National Rail stations
Isleworth has only one rail service. It consists of a loop branch line running off the minor main line service operated by South West Trains between central London and Reading. On the down-service the loop begins at the Barnes junction, then travels through Chiswick and Brentford before entering Isleworth by crossing the River Brent just south of the A4 trunk road. Thereafter it serves the two stations of Syon Lane and Isleworth before leaving the town just north of the Woodlands estate and passing under Bridge Road. The service usually runs at fifteen-minute intervals. Following its next stop at Hounslow the loop re-enters the main line on the up-service shortly before the Whitton station.
Rail passenger services
A long-established motor bus route serving Isleworth (and Hounslow) was the number 37. This was one of the earliest motor bus routes introduced by the London General Omnibus Company and it originally ran from Isleworth to Peckham via St Margarets, Richmond, Barnes, Putney, Wandsworth, Clapham Junction, Clapham Common, Brixton, Herne Hill and East Dulwich. It was later extended westward to Hounslow (going round the back streets to avoid the low railway bridge in St John's Road and to serve Isleworth railway station) and for a brief time in the 1920s offered a summer Sunday service extension as far as Maidenhead. Even without that short-lived extension the 37 was one of London's longest routes. Between 1922 and 1938 its western terminus was the "Hussar" at Hounslow Heath but was then cut back to turn at Hounslow Bus Garage (later Bus Station). At the beginning the terminus in Isleworth was the forecourt of the Northumberland Arms public house. Later, for "short" journeys, this was changed to stands in Magdala Road and then in South Street, outside the Public Hall. In 1991 this historic route was curtailed to run between Peckham and Putney, and the section between Richmond and Hounslow via Isleworth became a new, more localised service numbered H37.
On Summer Bank Holidays a special service was operated between Shepherd's Bush and Hampton Court. In tram days this was route 65, but trolleybuses showed number 667 towards Hampton Court and 657 on the return journey. This service did not survive the trolleybuses' withdrawal.
Another trolleybus service serving Isleworth was the 667, formerly the 67 tram, which passed through en route from Hampton Court to Hammersmith via Hampton Hill, Fulwell, Twickenham, Busch Corner, Brentford and Chiswick. Upon its transfer to motor bus operation, as part of the final London trolleybus conversions, the route had its number changed from 667 to 267. Tram 67, trolleybus 667 and motor bus 267 were all operated from Fulwell Garage. The history of the ownership of Fulwell (coded "FW") is exactly as for Hounslow Garage above.
When the 657 figured in the final London trolleybus conversion of all, on 8 May 1962, Isleworth Depot was closed and its staff were transferred to nearby Hounslow Bus Garage (coded "AV"). The replacement motor bus service was provided by an extension of route 117, which up to then had run between Egham and Hounslow. In 1978 the 117 between Hounslow and Shepherd's Bush was superseded by an eastward extension to route 237. Until this time the 237 had operated between Chertsey and Hounslow with single deck buses – a truly suburban route. Following the break up of London Transport Buses and the formation of Transport for London, Hounslow Garage became part of the Transdev London, London United Busways operation and this, in turn, has been taken over by RATP Group which is another French owned company.
Electric trams started running in Isleworth in 1901, from a depot situated on the north side of London Road, near the border with Hounslow. The original operating company was London United Tramways, which was subsumed into the new London Passenger Transport Board in 1933. In 1935 the depot was converted to trolleybus operation. It was designed in a horseshoe shape with a travelator at the far end, which had a turntable added for the trolleybuses. Originally known as Hounslow Depot, it was renamed Isleworth and given the code "IH" in 1950. It had a capacity for 37 vehicles and only ever operated one service: the 57 tram route which, on conversion, became the 657 trolleybus route. Both the 57 and 657 operated between Hounslow and Shepherd's Bush Green via Isleworth, Brentford, Chiswick, and Goldhawk Road. From 1902 the Hounslow terminus of the 57 tram was the "Hussar" in Staines Road, Hounslow Heath. In July 1922 the service was cut back to terminate at the "Bell" at the western end of Hounslow High Street. A special turning place half a mile along Staines Road, at its junction with Wellington Road, was built for the 657 trolleybus. At different times there were ambitious plans to extend the tram lines westward to Staines-upon-Thames and even to Maidenhead, but these never came about and the modern replacement motor bus route 237 traverses exactly the same roads between Hounslow Heath and Shepherd's Bush as the trams did over 110 years ago (with a short extension to White City).
Horse bus operation came to Isleworth in the mid 1800s. The predominant London bus operator from 1856 to 1933 was the London General Omnibus Company, after which the London Passenger Transport Board was formed. On 19 October 1856 the LGOC took over an existing horse bus operation between Isleworth and St Pauls Cathedral with the buses painted red.
Road passenger services
The other throughway in this category is the Twickenham Road (A 310), which branches off London Road west of the Syon estate and takes traffic to Twickenham, Teddington and beyond. This was the King's Highway to Hampton Court, so in years past those houses fronting on Twickenham Road, such as Somerset House, Kendal House and the two Silver Halls would have been favoured with a royal gaze from time to time.
A bigger road was completed in 1925, named the Great West Road (A 4), moving in much the same direction and forming the notional northern boundary of Isleworth. A six-lane dual carriageway for most of its length, with attendant cycle paths, it fulfilled the purpose of bypassing the bottlenecks of Brentford and Hounslow high streets to relieve the old road from London of traffic heading to and from Windsor and beyond. A later branch extension off this new road, named the Great South West Road, carried traffic south-westwards and this had the additional effect of relieving the London Road of traffic heading to and from Staines-upon-Thames and beyond. In terms of volume and speed of traffic the newer road is of course a much more important throughway for Isleworth, but in human terms it does not identify with or serve the local community so closely.
As this road from the centre of London passes through Westminster it is called 'Piccadilly' and then 'Knightsbridge'. In Kensington it is 'High Street', in Hammersmith 'King Street', in Chiswick it's the 'High Road', in Brentford it's the 'High Street', and as Isleworth's 'London Road' passes into Hounslow it again becomes 'High Street'. In former times it was part of the 'King's Highway' to Windsor.
The principal road in Isleworth is the London Road (A 315), which broadly follows the route of one of the early roads the Romans constructed in Britannia, namely Tamesis Street, built across the wide heathlands en route to Silchester, from where other roads led to Bath, Winchester and Salisbury.
Isleworth Congregational Church, Twickenham Road, Isleworth, TW7 7EU.
St Mary the Virgin Church, Worton Road, Isleworth.
St Mary's Church, Osterley Road, Isleworth, TW7 4PW.
St John's Church, St John's Road, Isleworth, Middlesex, TW7 6NY.
St Bridget RC Church
St Francis of Assisi Church
All Saints Church, which faces the River Thames at the eastern end of Church Street, is the parish church of Isleworth. It dates from the 14th century and its tower has endured fire and the passage of time to survive to the present day. By the end of the 17th century it was in need of repair and Christopher Wren, who, as well as rebuilding St Paul’s Cathedral, had repaired many London churches, was approached to submit a plan for the building. His project was deemed too expensive until 1705, when Sir Orlando Gee died and left £500 towards the work. This sum, combined with funds raised through subscriptions, meant that the work, with a few modifications, could commence and was finished in 1706. In 1943 a fire started by two school boys, who a few days later set fire to Holy Trinity Church in Hounslow, destroyed much of the building. The present church was built in 1970 to replace an earlier church building incorporating the original 14th-century stone tower.
- Ashton House School
- The Blue School (Church of England)
- Isleworth Town
- St John's (Church of England)
- Smallberry Green
- Spring Grove Primary
- St Mary's (Roman Catholic)
- The Green School for Girls
- Gumley House Convent School (girls)
- Isleworth and Syon School (boys)
- Oaklands School (Special Educational Needs)
For nearly a hundred years an isolation hospital existed on the south side of Mogden Lane, which runs west from Twickenham Road. Opened in 1897, Mogden Isolation Hospital served its own borough and that of Richmond, retaining its name until 1938. It was then renamed 'South Middlesex Fever Hospital' but continued under local authority control. When the National Health Service was formed it became, in 1948, simply 'South Middlesex Hospital' – still dealing with acute and infectious diseases under the North West Metropolitan Regional Hospital Board. Then from 1974 until its closure in 1991 it was administered by the North West Thames Regional Health Authority.
Mogden Isolation Hospital (History)
Within the old union workhouse complex stood a school, facing Twickenham Road, called Percy House – Percy being the surname of the Duke of Northumberland. Owing to its gradual disuse as a school it was adapted to function as a military hospital during 
Percy House Military Hospital (History)
This is a major acute hospital on the Twickenham Road, Isleworth, with 394 beds, providing the full range of services expected of a general hospital. It serves residents of both the London boroughs of Hounslow and Richmond. As a university hospital it is affiliated with Imperial College London. A programme of building, renovation and modernisation in recent years has resulted in the hospital offering modern facilities.
West Middlesex University Hospital (NHS Trust)
The Brentford Poor Law Union had a workhouse built in 1838 covering much land to the east of Twickenham Road in Isleworth. At the turn of the 20th century, this was totally rebuilt as an infirmary, with a much larger workhouse newly erected in the grounds. This infirmary functioned until 1920, when it became 'West Middlesex Hospital'. In 1931 it was upgraded to a county hospital, but in 1948 (under the NHS) 'County' was dropped from its title. It later became a teaching hospital, and added 'University; to its title in 1980. The Victorian buildings were closed in 2003, and redeveloped as housing, called Union Lane, after the original workhouse. The hospital was rebuilt on the adjacent site. 
Brentford Workhouse Infirmary and West Middlesex Hospital (History)
The Boat Cathja is moored in Old Isleworth. This is a unique 38 metre barge which has been the home of a mental health charity since 1996. It helps mentally disabled people a chance to hone into their artistic skills. Situated on the boat is the Sculpture "The Heron" by Martin Cotts.
There used to be a film studio in Worton Road, Isleworth. Known variously as Worton Hall Studios and Isleworth Studios, its most notable film was The African Queen starring Humphrey Bogart and Katharine Hepburn. After the Studio closed, the premises became a Mining Research Establishment for the National Coal Board. It is now an industrial estate.
The town's municipal facilities include a public library, a public leisure centre with swimming pool, a gymnasium, four recreation grounds, and a town hall.
Isleworth is home to a crown court whose original remit has been expanded to include judicial work formerly conducted at the Middlesex Guildhall, involving the addition of six courtrooms and twenty two cells.
Elevations range from 27m in the north west to 4.9m by the Thames at the opposite extreme OD. The boundaries are longstanding, subject to 20th western and southern circonscriptions: Isleworth is east of the town of Hounslow which has more retail and offices, in the borough of that name; west of the River Thames; north of its tributary and the northern confluence of the Crane (before 1998 its southern channel); and south of the crest by the M4 motorway separating the Brent and Crane catchments. Half of the River Crane flows into the Thames south of the Ait, and its distributary the Duke of Northumberland's River flows toward its midpoint from the west.
Isleworth's former Thames frontage of approximately one mile, excluding that of the Syon estate which is shared with Brentford, was reduced to 0.5 miles (0.80 km) in 1994 when a borough boundary realignment was ordered by the UK's Local Government Minister to add land to the district of St Margarets, Twickenham.
The first half of the 20th century for Isleworth generally was characterised by a very substantial amount of artisan and white-collar residential development throughout the town, at the expense of numerous market gardens. Isleworth's former western area was ceded to the new town and parish of Hounslow, which was invested as a civil parish in 1927. This period accompanied by the building of several new factories and offices, mostly towards the north-east, up to the town's eastern boundary with New Brentford. This rapid spread of building transformed the nature of Isleworth's layout in the space of just fifty years, from an agrarian pattern to an urban one. When the postwar recovery period had passed, development resumed in the 1950s and within fifteen years the town of Isleworth.
Much of Isleworth became orchards in the 18th century, and then market gardens in the 19th century, supplying the London markets. Lower Square and Church Street still have buildings dating from the 18th and early 19th centuries. A striking element of this period was the establishment in Isleworth of many mansions and large houses, principally for aristocrats and high achievers. This phenomenon arose owing mainly to the collection of royal and noble residences and ecclesiastical establishments that already existed nearby. The subject is examined in depth further down this article
Georgian and Victorian times
Forty-six years later, in 1594 Queen Elizabeth I granted a lease of the manor of Syon to Henry Percy, 9th Earl of Northumberland on his marriage to Dorothy Devereux the younger daughter of Walter Devereux, 1st Earl of Essex, who later received a grant of the freehold from King James I in 1604. It has remained in the possession of the Percy family, now the Dukedom of Northumberland, for over four hundred years. The Royalist army occupied the house during the Battle of Brentford in November 1642. Syon Park was rebuilt and landscaped by the Adam brothers and "Capability" Brown between 1766 and 1773. It became the new home of the Dukes of Northumberland when Northumberland House in the Strand was demolished in 1874.
Acquired by Earl of Northumberland
Granted to Duke of Somerset
In 1415 Henry V granted nuns from the Swedish Bridgettine order land on the bank of the Thames, in Twickenham parish opposite his new Sheen Palace, where they built their first house Syon Monastery. In 1422 Henry V transferred ownership of Isleworth Manor from the Duchy of Cornwall to Syon Monastery, which in 1431 selected a new location within their manor to rebuild their monastery. This is the site of the present Syon House
Transfer of Manor to Syon Monastery
The castle-like stone church tower by the river remains from this period, see below.