Description
Conolly Dell was formerly part of the grounds of The Lawn, the home and private asylum of Dr John Conolly after his retirement as Superintendent of Hanwell Asylum where he worked from 1839-44, He pioneered humane treatment and non-restraint of the mentally ill. Part of the grounds of The Lawn were given as public open space in 1911, named in his memory, with a memorial surmounted by a winged figure. The sloping garden has a series of ponds, rockery garden and fine trees.
Practical Information
| Previously known as | The Lawn; Conolly Dell Rest Garden |
|---|---|
| Site location | Conolly Road, Station Road, Hanwell |
| Postcode | W7 3JW |
| What3Words | ///cable.learns.reap |
| Type of Site | Public Park |
| Borough | Ealing |
| Open to Public | Yes |
| Opening Times | 7.30am to dusk |
| Public Transport | Rail: Hanwell. Bus: E3, E8, 83, 207, 607, |
| Research Updated | 1 October 2010 |
| Last Updated | 18 October 2026 |
Full description
Conolly Dell is a small park in a shallow depression that was formerly part of the grounds of The Lawn, which was the home of Dr John Conolly after his retirement in 1852 until his death in 1866 and the park is named in his memory.
Dr Conolly was Superintendent of Hanwell Asylum from 1839 and became celebrated for introducing innovative techniques of humane treatment and non-restraint to asylums. Hanwell Asylum, or more properly the Middlesex County Asylum had been built in 1831 on 55 acres in what was then largely open country. It was one of a number of such asylums established following the County Asylums Act of 1808 that authorised county rates to be used to provide better facilities for the mentally ill, in particular to accommodate paupers. John Conolly's mother was a descendent of the poet Tennyson; at the age of 18 John became an ensign in a Cambridgeshire regiment and travelled much in Ireland and Scotland. He began to study medicine at Edinburgh University, graduating in 1821 having written a thesis on 'The State of the Mind in Insanity and Melancholia' whereupon he studied for a short time in Paris before becoming a successful GP in Stratford upon Avon, where he was twice mayor and an alderman. He worked in London between 1827 and 1830 after which he became physician of asylums of Warwickshire, before finally becoming resident physician at Hanwell in 1839, where he promoted the then novel idea of humane treatment of the insane, first practised by Pinel in France, William Tuke in York in 1792 and others. His predecessor at Hanwell, Dr William Ellis, was also an advocate of humane treatment of patients. Dr Conolly's techniques were innovative. He encouraged games and outdoor recreation as well as supervised outings, and a Bazaar was set up where patients' handiwork was sold and the profits returned to benefit the patients.
After he retired from Hanwell Asylum Dr Conolly ran a private asylum at Lawn House, with four patients 'of unsound mind' recorded there in the 1851 census. Part of the grounds were given as a public open space in 1911, according to the an article in the Asylum Workers' Journal of Mental Science, 'thanks to the liberality of Dr. Maudsley', and it was also 'suitably laid out and equipped'; seen from the Great Western Railway, it was 'a pleasant resting-place for the eye from the rather uninteresting streets adjoining it'. A memorial to Conolly was erected in the small park, the plinth of which still exists although the winged figure surmounting it is no longer in place. The park was described in 1956 as 'pretty Conolly Dell' and now has good tree cover including eucalyptus, conifers, and ponds with a thriving colony of smooth newts (Nature Conservation in Ealing). The small park has its original railings and gates.
In 2009 Ealing Council's Leisure and Parks Service began working with the Conolly Dell Working Group on a number of projects to restore the garden. These include restoration of the ponds, which subject to funding is due to be completed in 2012. Other projects include planting around the ponds to increase biodiversity, a new bog garden, new benches, restoration of the Conolly Monument including a new Hanwell Phoenix, and other improvements to the shrubs and rockery. This is one of a number of projects resulting from Brent River Park's designation as a Priority Park in 2009. In 1976 Brent River Park was created following proposals by the Brent River and Canal Society, which was established in 1973 to set up a linear park and improve the Brent Valley river corridor. Brent River Park covers 400 hectares along its 7km length, and includes larger formal parks such as Brent Lodge Park, Churchfields Recreation Ground, Pitshanger and Elthorne Parks (q.q.v.) and open space, golf courses, sports grounds, allotments and privately owned land. Brent River Park received £400,000 in 2009 under the Mayor of London's Priority Parks scheme, which was matched by £487,000 from Ealing Council.
Dr Conolly was Superintendent of Hanwell Asylum from 1839 and became celebrated for introducing innovative techniques of humane treatment and non-restraint to asylums. Hanwell Asylum, or more properly the Middlesex County Asylum had been built in 1831 on 55 acres in what was then largely open country. It was one of a number of such asylums established following the County Asylums Act of 1808 that authorised county rates to be used to provide better facilities for the mentally ill, in particular to accommodate paupers. John Conolly's mother was a descendent of the poet Tennyson; at the age of 18 John became an ensign in a Cambridgeshire regiment and travelled much in Ireland and Scotland. He began to study medicine at Edinburgh University, graduating in 1821 having written a thesis on 'The State of the Mind in Insanity and Melancholia' whereupon he studied for a short time in Paris before becoming a successful GP in Stratford upon Avon, where he was twice mayor and an alderman. He worked in London between 1827 and 1830 after which he became physician of asylums of Warwickshire, before finally becoming resident physician at Hanwell in 1839, where he promoted the then novel idea of humane treatment of the insane, first practised by Pinel in France, William Tuke in York in 1792 and others. His predecessor at Hanwell, Dr William Ellis, was also an advocate of humane treatment of patients. Dr Conolly's techniques were innovative. He encouraged games and outdoor recreation as well as supervised outings, and a Bazaar was set up where patients' handiwork was sold and the profits returned to benefit the patients.
After he retired from Hanwell Asylum Dr Conolly ran a private asylum at Lawn House, with four patients 'of unsound mind' recorded there in the 1851 census. Part of the grounds were given as a public open space in 1911, according to the an article in the Asylum Workers' Journal of Mental Science, 'thanks to the liberality of Dr. Maudsley', and it was also 'suitably laid out and equipped'; seen from the Great Western Railway, it was 'a pleasant resting-place for the eye from the rather uninteresting streets adjoining it'. A memorial to Conolly was erected in the small park, the plinth of which still exists although the winged figure surmounting it is no longer in place. The park was described in 1956 as 'pretty Conolly Dell' and now has good tree cover including eucalyptus, conifers, and ponds with a thriving colony of smooth newts (Nature Conservation in Ealing). The small park has its original railings and gates.
In 2009 Ealing Council's Leisure and Parks Service began working with the Conolly Dell Working Group on a number of projects to restore the garden. These include restoration of the ponds, which subject to funding is due to be completed in 2012. Other projects include planting around the ponds to increase biodiversity, a new bog garden, new benches, restoration of the Conolly Monument including a new Hanwell Phoenix, and other improvements to the shrubs and rockery. This is one of a number of projects resulting from Brent River Park's designation as a Priority Park in 2009. In 1976 Brent River Park was created following proposals by the Brent River and Canal Society, which was established in 1973 to set up a linear park and improve the Brent Valley river corridor. Brent River Park covers 400 hectares along its 7km length, and includes larger formal parks such as Brent Lodge Park, Churchfields Recreation Ground, Pitshanger and Elthorne Parks (q.q.v.) and open space, golf courses, sports grounds, allotments and privately owned land. Brent River Park received £400,000 in 2009 under the Mayor of London's Priority Parks scheme, which was matched by £487,000 from Ealing Council.
Further Information
| Grid Reference | TQ152804 |
|---|---|
| Size in hectares | 0.6 |
| Site Ownership | LB Ealing |
| Site Management | Leisure and Parks Service; Conolly Dell Working Group |
| Dates | 1911 |
| On National Heritage List for England (NHLE), Parks & Gardens | No |
| Registered common or village green on Commons Registration Act 1965 | No |
| Protected under London Squares Preservation Act 1931 | No |
| Local Authority | Ealing |
| In Conservation Area | Yes |
| Conservation Area Name | Churchfields |
| Tree Preservation Order | Not known |
| Nature Conservation Area | Yes - ?Boro Importance I |
| Green Belt | No |
| Metropolitan Open Land | Yes |
| Special Policy Area | No |
| Other LA Designation | Nature Conservation: within Brent River Park Boundary |
Please note the Inventory and its content are provided for your general information only and are subject to change. It is your responsibility to check the accuracy.
Nearby parks and gardens
Churchfields Recreation Ground was former glebe lands for St Mary's Church Hanwell. The land was owned by Sir Montagu Sharpe of Brent Lodge when it was purchased in 1898 by the local council for public open space. In 1902 the purchase of the Rector's Glebe next to the recreation ground completed the open space and by then fencing and path repair had been carried out, seating provided and two 'handsome fountains' erected. Close to the centre of the recreation ground is a War Memorial erected by the Boy Scouts in 1919. The site has views towards the Wharncliffe Viaduct, built by Brunel in 1836/7. A line of mature trees marks its northern boundary with Church Road and an avenue of mature horse chestnut trees crosses the ground along the diagonal path from the parish church.
In the mid-C18th much of the area was part of Hanwell Heath, but when the parish land was enclosed in 1816 only c.1.25 acres had been set aside for the poor in compensation for loss of common rights. This was the site that later became King George's Field, then called Poor's Piece and owned by Hobbayne's Charity, whose Trustees were not permitted to sell the land for private use or building. King George's Field was opened as a recreation ground in 1951. Its gate piers on St Mark's Road have the heraldic stone plaques commemorating funding from King George's Fields Foundation. The Foundation, set up as a memorial following the King's death in 1936, provided funding for the creation or improvement of a great many playing fields before it was dissolved in 1965.
Hanwell is mentioned in the Domesday Book as an independent manor although it became a subsidiary of Greenford. First mention of a Christian church at Hanwell occurs in 958 AD and in the C12th a small thatched church was built, later rebuilt in 1781/2. The village consisted of only a few houses along Church Road until the late 1830s but in 1841 a larger parish church was needed for the growing population and the current church was built. The walled churchyard overlooks the Brent Valley and is part of the rural landscape of Brent Lodge Park, once owned by Hanwell Rector G H Glasse; the church lych gate is now the entrance to the park. Among the monuments in the churchyard are box tombs, a monument to Glasse's wife and daughter, and one gravestone dated 1707 by the west door.