Description
* on The National Heritage List for England, Parks & Gardens
The Portman family's estate in Marylebone in the C18th comprised 200 acres of meadowland that had been passed down from a Tudor ancestor. When Henry William Portman began to develop his land from 1764, Portman Square was the first square to be built, acting as the centrepiece of the new development. The garden enclosure was laid out c.1780 as a Wilderness and in the C19th had a movable temple erected by the Turkish ambassador, which enabled him to enjoy the seasons. It remains a private garden for residents of Portman Square, surrounded by privet hedge and containing fine London plane and other trees and shrubs. A major renovation of the gardens was undertaken in 2005.
The Portman family's estate in Marylebone in the C18th comprised 200 acres of meadowland that had been passed down from a Tudor ancestor. When Henry William Portman began to develop his land from 1764, Portman Square was the first square to be built, acting as the centrepiece of the new development. The garden enclosure was laid out c.1780 as a Wilderness and in the C19th had a movable temple erected by the Turkish ambassador, which enabled him to enjoy the seasons. It remains a private garden for residents of Portman Square, surrounded by privet hedge and containing fine London plane and other trees and shrubs. A major renovation of the gardens was undertaken in 2005.
Practical Information
| Site location | Portman Square, Marylebone |
|---|---|
| Postcode | W1H 7BH |
| What3Words | ///moment.flame.unique |
| Type of Site | Garden Square |
| Borough | Westminster |
| Open to Public | Occasionally |
| Opening Times | Has opened for London Open Gardens. Otherwise private, for keyholders only |
| Facilities | children's play area |
| Events | Has opened for London Garden Squares Day |
| Public Transport | Tube: Marble Arch (Central), Bond Street (Central, Jubilee); Bus: 2, 13, 30, 74, 82, 113, 139, 189, 274 |
| Research Updated | 1 July 2009 |
| Last Updated | 18 October 2026 |
Full description
The Portman Estate (Portman Square and Manchester Square): Site on The National Heritage List for England, Parks & Gardens, for Register Entry see https://www.historicengland.org.uk/listing/the-list. The Historic Buildings and Monuments Commission for England was established in 1984 and was commonly called English Heritage. In April 2015 it split into 2 separate entities, Historic England (HE), which continues to champion and protect the historic environment, and the English Heritage Trust, whose role is to look after the 400+ historic sites and monuments owned by the state. HE manages the National Heritage List for England (NHLE) that includes over 400,000 items ranging from prehistoric monuments to office blocks, battlefields and parks, which benefit from legal protection.
Portman Square was built for Henry William Portman as the centrepiece of the family's development of their Marylebone Estate on what was then the outskirts of the city. The land had been owned by the family since the C16th. The houses on Portman Square were mostly built by 1769, and completed by c.1784. Each May Day in the 1780s one of the residents of the square, Mrs Elizabeth Montagu, gave a dinner for chimney sweeps and their apprentices; Montagu Square (q.v.) is named after her. The garden was laid out by 1780. Original building agreements and leases made provision for rents to cover the cost of 'lighting, painting and repairing that part of the said Square which was heretofore inclosed with iron rails'. The income, however, was insufficient to enable it 'to be laid out as a Garden or Pleasure Ground' so a new constitution was established by a private Act of Parliament of 1780 (anno regni Georgii III Regis vicesimo secundo): 'it would be of great Benefit and Convenience to the Inhabitants of the said Square, if the Ground so inclosed as aforesaid was laid out with proper Walks and otherwise embellished as a Pleasure Ground for the use of the Inhabitants, and a more effectual Provision made for preventing Nuisances and Annoyances therein'. The inhabitants of the square were appointed trustees and vested with the upkeep: a rate was levied by them. A further Act in 1823 (anno quatro Georgii IV Regis, Cap. iv.) supplemented the powers and provisions: a pump was installed and an iron roller purchased! A `Wilderness' was laid out in the later C18th in the centre of the garden but has now gone, likewise a Turkish `kiosk', which was erected in the early C19th by the Turkish ambassador and enabled him to enjoy the seasons. Railings and gates were erected in 1882-86, but the railings were removed in 1942, later restored in 1972.
In 1805, a lace hat was ordered for the gardener, to give some authority, to enable him to keep out improper persons, many having acquired false keys. There are frequent references to the necessity of protecting against vandalism by mobs and children, and of preventing damage to plants caused by playing of cricket and tennis. Until the installation of hydrants in 1889, the problem of adequate water provision was a constant problem. The polished pink granite Hamilton Memorial Drinking Fountain (1878) was donated by Lady Hamilton through the Metropolitan Drinking Fountain and Cattle Trough Association.
Some of the London plane trees date from the 1780s, but the general layout was changed completely some time between 1894 and 1914 when the symmetry of the perimeter paths, as well as the beds interconnected with subsidiary paths, was removed. By the mid 1990s the shrubs were mostly outgrown and the condition of the grass was poor, affected by shade and lack of moisture due to the mature trees and tall surrounding buildings, the tennis court taking up a large section of the garden and, with the brightly coloured play equipment, somewhat obtrusive, destroying the `spirit of the place'.
It remains a private garden for residents of Portman Square. The oval railed area of the garden is surrounded by hedge of clipped privet and enclosed by the road of Portman Square, related to Gloucester Place on the west, to Baker Street on the east and to Wigmore Street on the south side. There are winding paths between the entrance gates and across the central lawn. The garden has notable mature planes, grown over varied trees and shrubs that include ailanthus, laburnum, lilac, malus, philadelphus. A larger area of trees and shrubs is found in the south centre of the garden, with a shelter on the north side and a tennis court in the west centre. Restoration works have taken place in the garden in the early C21st.
Portman Square was built for Henry William Portman as the centrepiece of the family's development of their Marylebone Estate on what was then the outskirts of the city. The land had been owned by the family since the C16th. The houses on Portman Square were mostly built by 1769, and completed by c.1784. Each May Day in the 1780s one of the residents of the square, Mrs Elizabeth Montagu, gave a dinner for chimney sweeps and their apprentices; Montagu Square (q.v.) is named after her. The garden was laid out by 1780. Original building agreements and leases made provision for rents to cover the cost of 'lighting, painting and repairing that part of the said Square which was heretofore inclosed with iron rails'. The income, however, was insufficient to enable it 'to be laid out as a Garden or Pleasure Ground' so a new constitution was established by a private Act of Parliament of 1780 (anno regni Georgii III Regis vicesimo secundo): 'it would be of great Benefit and Convenience to the Inhabitants of the said Square, if the Ground so inclosed as aforesaid was laid out with proper Walks and otherwise embellished as a Pleasure Ground for the use of the Inhabitants, and a more effectual Provision made for preventing Nuisances and Annoyances therein'. The inhabitants of the square were appointed trustees and vested with the upkeep: a rate was levied by them. A further Act in 1823 (anno quatro Georgii IV Regis, Cap. iv.) supplemented the powers and provisions: a pump was installed and an iron roller purchased! A `Wilderness' was laid out in the later C18th in the centre of the garden but has now gone, likewise a Turkish `kiosk', which was erected in the early C19th by the Turkish ambassador and enabled him to enjoy the seasons. Railings and gates were erected in 1882-86, but the railings were removed in 1942, later restored in 1972.
In 1805, a lace hat was ordered for the gardener, to give some authority, to enable him to keep out improper persons, many having acquired false keys. There are frequent references to the necessity of protecting against vandalism by mobs and children, and of preventing damage to plants caused by playing of cricket and tennis. Until the installation of hydrants in 1889, the problem of adequate water provision was a constant problem. The polished pink granite Hamilton Memorial Drinking Fountain (1878) was donated by Lady Hamilton through the Metropolitan Drinking Fountain and Cattle Trough Association.
Some of the London plane trees date from the 1780s, but the general layout was changed completely some time between 1894 and 1914 when the symmetry of the perimeter paths, as well as the beds interconnected with subsidiary paths, was removed. By the mid 1990s the shrubs were mostly outgrown and the condition of the grass was poor, affected by shade and lack of moisture due to the mature trees and tall surrounding buildings, the tennis court taking up a large section of the garden and, with the brightly coloured play equipment, somewhat obtrusive, destroying the `spirit of the place'.
It remains a private garden for residents of Portman Square. The oval railed area of the garden is surrounded by hedge of clipped privet and enclosed by the road of Portman Square, related to Gloucester Place on the west, to Baker Street on the east and to Wigmore Street on the south side. There are winding paths between the entrance gates and across the central lawn. The garden has notable mature planes, grown over varied trees and shrubs that include ailanthus, laburnum, lilac, malus, philadelphus. A larger area of trees and shrubs is found in the south centre of the garden, with a shelter on the north side and a tennis court in the west centre. Restoration works have taken place in the garden in the early C21st.
Further Information
| Grid Reference | TQ280812 |
|---|---|
| Size in hectares | 1.03 |
| Site Ownership | The Portman Estate |
| Site Management | Westbourne Block Management |
| Dates | 1780, 1882-86 |
| Listed Structures | LBI: Nos. 20 and 21 on the north side. LBII: No. 19 on the north side; Hamilton Memorial Drinking Fountain. |
| On National Heritage List for England (NHLE), Parks & Gardens | Yes |
| NHLE grade | Grade II |
| Registered common or village green on Commons Registration Act 1965 | No |
| Protected under London Squares Preservation Act 1931 | Yes |
| Local Authority | Westminster |
| In Conservation Area | Yes |
| Conservation Area Name | Portman Estate |
| Tree Preservation Order | Yes |
| Nature Conservation Area | Yes - Borough Importance II |
| Green Belt | No |
| Metropolitan Open Land | No |
| Special Policy Area | No |
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
Montagu Square is the only purely residential square left in Westminster and has a narrow oblong garden. Developed for the Portman Estate, Montagu Square was designed by Joseph Parkinson, District Surveyor of Westminster, as a twin for Bryanston Square. It is named after Mrs Elizabeth Montagu of Portman Square. The houses were built from 1811 but the garden was laid out in c.1800. Famous residents include Anthony Trollope, who lived in No 39 from 1873-1880. In 1999 the residents restored the railings, which had been removed during WWII.
* on The National Heritage List for England, Parks & Gardens
Manchester Square was built in the late C18th on what was then the outskirts of the City. The land had been owned by the Portman family since the C16th. Almost circular in plan, the garden is overlooked by Hertford House to the north, which was built as Manchester House in 1777 by the 4th Duke of Manchester from whom the square gets its name. The garden layout today is little changed from its late C18th layout. Railings surround mixed shrubbery with a circular path enclosing the central lawn, and there are a number of notable mature plane and lime trees. Major replanting of the garden took place in 2006-08.
Manchester Square was built in the late C18th on what was then the outskirts of the City. The land had been owned by the Portman family since the C16th. Almost circular in plan, the garden is overlooked by Hertford House to the north, which was built as Manchester House in 1777 by the 4th Duke of Manchester from whom the square gets its name. The garden layout today is little changed from its late C18th layout. Railings surround mixed shrubbery with a circular path enclosing the central lawn, and there are a number of notable mature plane and lime trees. Major replanting of the garden took place in 2006-08.
Great Cumberland Place was built as part of the Portman Estate development, which took place between the 1760s and 1820. On an axis with Marble Arch, the southern part of Great Cumberland Place was planned as a circus or double crescent, but only the eastern crescent was completed, built in 1789. The crescent of houses, including the Western Marble Arch Synagogue at No.32, are now set back from the road behind a landscaped open space, which was laid out as a memorial to the Swedish diplomat Raoul Wallenberg, with a statue unveiled in 1998.