Lombard House, London

Lombard House (formerly Sunderland House) is a Grade II‑listed detached town mansion in Curzon Street, Mayfair, in central London. It occupies an entire island block bordered by Curzon Street to the south, Trebeck Street to the east, Pitt’s Head Mews to the north, and Down Street to the west. The house was completed between 1901 to 1904 as a London residence for Charles Spencer-Churchill, 9th Duke of Marlborough and his American heiress wife, Consuelo Vanderbilt; Consuelo's father William Kissam Vanderbilt funded the purchase of the building site and construction.the First World War, the House was the temporary London Headquarters of the League of Nations.

Origins

Built on the cleared site of the Curzon Street Chapel (demolished in 1899), Sunderland House was financed by William Kissam Vanderbilt as a gift for his daughter Consuelo, who had married the 9th Duke of Marlborough in 1895.

Consuelo records in her 1953 memoir ''The Glitter and the Gold'' that the Duke of Marlborough did not maintain a permanent London residence. During the early years of their marriage the couple took various short term leases on various townhouses in London. During Consuelo's first London Season (May to July 1896) a small house in South Audley Street was leased. In the 1890's London's Social and Political Life was centred on a series of Palatial Aristocratic and Royal Townhouses. Consuelo's memoir records the lasting impression made upon her by the grand settings which these homes provided for the procession of near-nightly receptions, dinners and events which she attended during her first London season, including at:
*Marlborough House, the London Home of the Prince of Wales
*Lansdowne House, the London base of the-then Secretary of State for Foreign Affairs Henry Petty-Fitzmaurice, 5th Marquess of Lansdowne
*Devonshire House, belonging to the Duke of Devonshire
* Montagu House, belonging to the Duke of Buccleuch
*Apsley House, belonging to the Duke of Wellington
*Grosvenor House, belonging to Duke of Westminster
*Hampden House, London house of the Dukes of Abercorn
*Holland House, which was the London home of Henry Fox-Strangways, 5th Earl of Ilchester, and the site of the traditional end-of-season Ball
*Buckingham Palace, the official residence of the Sovereign and the location Consuelo's formal Presentation at the Royal Court following her marriage.

In 1897 the Marlboroughs took a lease of Spencer House, where the first child of the marriage John Spencer-Churchill, Marquess of Blandford was born on 18 September. Consuelo felt the house was a fitting place for the birth, as the Dukes of Marlborough were descendants of the Spencer Family.

A Permanent London Base

Having entered London Society during the zenith of the splendor and influence associated with London's palatial aristocratic mansions, Consuelo attributed the construction of Sunderland House to her husband's decision to embark on a political career (his appointment as Paymaster General in 1899 was succeeded by his elevation to Under-Secretary of State for the Colonies in 1903). She records that ''"with my husband embarked on a political career it seemed advisable to have a permanent establishment in London rather than the lease a different house every year. I only had to mention our wish for my father to promise its fulfilment.''

Contemporary newspapers record that Consuelo Vanderbilt’s father, William K. Vanderbilt, and her husband, the 9th Duke of Marlborough, initially made enquiries as to whether the family's former London seat, Marlborough House, could be recovered from the Crown Estate. When it became clear this was not possible, Vanderbilt purchased a rare freehold parcel of land on Curzon Street for US $380,000. According to Consuelo, freehold properties in the capital were difficult to obtain, as the most desirable districts were dominated by great landlords—such as the Duke of Westminster, Lord Portman and the Earl Cadogan—who preferred to lease rather than sell their estates. ''“To find a freehold, however small, was therefore an achievement,”'' she later wrote.

The site acquired—formerly occupied by the Curzon Street Chapel—became the location for a large greystone mansion, approximately 60 feet wide and 100 feet deep. Construction commenced in 1901 and was completed in 1904.

Press reports at the time stated that Vanderbilt spent US $500,000 on construction and over $1,000,000 on interiors and furnishings, bringing the total cost of Sunderland House to more than US $2,500,000.

The question of a name for the house was raised by the Prince of Wales at a dinner held at his London residence, Marlborough House. The Prince also expressed his view that the site was ill-chosen owing to the proximity of the new house to a slum to Curzon Street. Consuelo ventured both ''Blandford House'' and ''Sunderland House'' for the building, with the latter ultimately being chosen (the titles Marquess of Blandford and Earl of Sunderland were amongst the many subsidiary titles held by the Duke of Marlborough).

Design

The mansion, designed in the French Renaissance style, rises four storeys above a basement and dormered mansard roof. Constructed in Portland stone, the symmetrical five‑bay façade features deeply channelled rustication at the ground level, a corniced architrave doorway, and segmental‑arched windows with mascaron keystones. A strong modillion cornice caps the elevation, and a dormered mansard roof completes the composition. Inside, the building retains original features including a grand stone stair with wrought-iron balustrades, a timber-panelled lift tower, and ornamental plasterwork.

In 1987, the building was granted Grade II listed status by Historic England in recognition of its architectural and historical significance. The listing attributes the design of the house to C.W. Stephens, whilst Consuelo attributed the design of the house to the French architect and landscape designer Achille Duchêne.

Sunderland House: Residence of Consuelo, Duchess of Marlborough

Following the completion of the House the Duke and Duchess were honoured with a visit from King Edward VII and Queen Alexandra at a dinner at their new London home in March 1905. The building had only recently been completed and occupied when the royal dinner took place. According to Mary S. Lovell, the Marlboroughs had not yet finished furnishing the house when they moved in.

Lovell also notes that Sunderland House was the first residence Consuelo was able to furnish according to her own tastes. She selected French antiques and modern domestic amenities, including bathrooms and heating, in contrast to the limited modern comforts she had found on her arrival at the Duke's ancestral seat in Oxfordshire, Blenheim Palace. In contrast to Blenheim, Sunderland House is described by Lovell as “her onsuelo'shouse,” and came to symbolise a transition in Consuelo’s domestic autonomy, even as the marriage itself was deteriorating.

As the breakdown of the Marlborough's marriage became increasingly public, it was reported in late 1906 that the couple had signed a Deed of Separation on 23 October. Under the terms of the agreement, Consuelo retained ownership of Sunderland House, which became her main residence in the United Kingdom. Despite the standing rule that separated or divorced couples could no be received at the Royal Court, Consuelo noted that London society would ''not be so governed.'' In the year following the couple's separation, she stood with her father at the head of the staircase to welcome a steady flow of guests at a concert she hosted at Sunderland House.

Following her separation from the Duke, Sunderland House also emerged as a centre of Consuelo’s budding social activism. In November 1913, she hosted a conference at Sunderland House to advocate for improved conditions for female industrial workers.

First World War

After the outbreak of the First World War in 1914, Consuelo allowed Sunderland House to be used for charitable events and fundraising activities supporting the war effort. In 1916, the composition of the household staff attracted attention due to wartime shortages of male servants. Reports described the Duchess being driven by a female 'chauffeuse' along Curzon Street, while a “smart looking young woman” in overalls and trousers took on duties traditionally performed by male footmen, such as sweeping the marble steps and polishing the front door handles.

Consuelo records that during 1915 it became ''"fashionable to offer one's London house to the War Office as a nursing-home."'' As Sunderland House was not adapted for this purpose, it was the only large house left free for public meetings. During 1916 and 1917, the mansion’s cellars and strong rooms were among several in London opened to the public for shelter during Zepplin air raids. The Duchess was credited as one of the early advocates for this practice among aristocratic homeowners. Consuelo received several letters from her neighbours, whom she records as living in small, old, rather frail houses, thanking her for saving their lives by allowing them to seek refuge in the basement of Sunderland House; however Consuelo ordered her maid not to wake her during raids, stating that if she was to be "blown up" she thought it better not to anticipate it.

The house was reportedly uncomfortable to live in during the war; owing to wartime restrictions there was no central heating, and Consuelo lived in a flat on the third floor, working in a small sitting room where she took meals on a tray, and depending on the sun and a small coal fire for heat. Consuelo received some criticism for occupying so large a house during the War, and stated that she only continued to occupy Sunderland House in order to be able to lend the long gallery to the charities and meetings which she regularly supported, and sometimes Chaired. Servants were increasingly hard to find, and upon receiving the resignation of a tenth housemaid, Consuelo was informed by the Maid that ''"I thought I had come to a private house, but I find it's the Town Hall, and I'm sick of washing that there marble floor after those meetings and refreshments."''

In early 1918, the Office of Works took possession of Sunderland House for use by the Interallied War Council, with occupation lasting until mid-1919.

League of Nations

In June 1919, the newly-formed League of Nations leased the property for use as its first London headquarters, including the establishment of its initial library.

The League of Nations vacated the premises in late November 1920, returning the property to the Duchess of Marlborough.

Upon returning to London following her father's death in 1920, Consuelo arranged for the sale of Sunderland House, and transferred a house she had leased in Portman Square to her son Lord Blandford; she then made her home in a house in Paris which her father had purchased for her.

Attempts at Sale

The property was offered for sale in October 1927.
In late 1929, it was reported that the Soviet Government was seriously considering acquiring Sunderland House as its new London Embassy. The estate agents, Messrs John D. Wood & Co., stated that the property was in excellent repair and had been inspected on multiple occasions by Soviet officials.

In July 1930, the property was again advertised for sale, described as:
''“SUNDERLAND HOUSE, CURZON-STREET, MAYFAIR. TO BE SOLD, FREEHOLD. This superb mansion, occupying an island site with an area of about 6,000 ft². The interior is exceedingly beautiful and comprises seven stately reception rooms—some entirely of marble—32 bedrooms, six bathrooms, central heating, passenger and service lifts, and three staircases. The property is eminently suitable for an embassy, club, institute, insurance company, bank, or any important business house. Sole agents: JOHN D. WOOD & CO., 6 Mount Street, W.1.”''

The house was eventually put to auction by John D. Wood & Co. on 16 November 1932 at their estate room in Berkeley Square. Bidding failed to exceed £77,000, and the property was left unsold.

Newspaper advertisements leading up to the auction offered the following description:
''“SUNDERLAND HOUSE, CURZON STREET, MAYFAIR, LONDON. A superb mansion erected some years since by the Duke of Marlborough, from designs by the eminent architects Romaine-Walker. Occupying an island site of approximately 6,000 ft², the Portland stone elevation is in the French Renaissance style. The interior is exceedingly beautiful, with seven stately reception rooms (some entirely of marble), 32 bedrooms with panelling in various styles, six bathrooms, central heating, and passenger and service lifts. There are three staircases. Eminently suitable for an embassy, club, institute, insurance company, bank, or other major enterprise. Freehold. For sale by auction (unless sold previously by private treaty). Auction offices: 2 Berkeley Square, London, W.1.”''

Commercial Use

In December 1930, the Evening Standard reported that Sunderland House remained in the ownership of the Marlborough family, although it was on the market for a reported £150,000. The article also noted that permission had been obtained for its use as a commercial premises.

1933 - 1936: Function Venue

By March 1933, the property had reportedly stood vacant for several years. Mr Arundel Clarke of Bruton Street secured a lease with the option to purchase and proposed a scheme to convert the upper floors into flats. The grand reception rooms were intended to remain in use for public events such as dinners, art exhibitions, balls, and wedding receptions. Approximately twelve residential flats were to be offered, ranging in size from single-room units to six-room suites, with annual rents between £225 and £600.

Throughout the early-to-mid-1930s, the house became a popular venue for debutante dances, serving as an alternative to high-end London hotels for 'coming out' balls.

1936 - 1948: Mabie, Todd & Co Ltd and Blitz Damage

On 24 March 1936 a sale of the contents of the House at ''clearance prices'' by Arundel Clarke was held, and newspaper reports soon followed in late April 1936 that the House had been sold and would be converted into commercial offices. By October 1936 Sunderland House was the London Headquarters of British-American writing-instrument manufacturer Mabie, Todd & Co. Ltd.

In February 1946, it was reported that the property—by then significantly damaged by wartime bombing—was being offered for sale on behalf of Mabie Todd by the agents Collins and Collins of Brook Street.

1948 - 1956: Mond Nickel Company

By April 1948, newspaper reports indicated that Sunderland House was set to be converted into office space once again. The first postwar tenant was the Mond Nickel Company, which had previously occupied Grosvenor House. The building, then a shell following fire damage sustained during the Blitz, was leased for an annual rent of approximately £20,000 and was by this time under the ownership of an investment company.

In 1955, the property was again advertised for sale, this time by agents Knight, Frank & Rutley, as a “Magnificent Office Building.”

By 1963, only three of Curzon Street’s former aristocratic mansions remained: Crewe House, Sunderland House, and Curzon House. The latter two had both been converted into offices.

1956 - 1997: Lombard Bank

Ernest Spater, President of Lombard Banking Ltd, was reported to have taken over Sunderland House in November 1956. The building continued to serve as the premises of the Lombard Bank and later the NatWest Bank for much of the remainder of the 20th century.

Reconversion to Private Residence

In 1997, Sheikh Mohammed bin Khalifa Al-Thani of the Qatari Royal Family, and the-then Deputy Prime Minister of Qatar, reportedly purchased Lombard House for £14 million. In May 1998, planning applications were submitted to convert the property from a bank back into a private family residence.

Reports from 2004 indicated that a further £20 million was spent on refurbishments and restoration work in the early 2000s.{{cite news , title=Treasure set to stay in Britain , newspaper=The Daily Telegraph , date=26 July 2004 , page=16 , url=https://www.newspapers.com/article/the-daily-telegraph-treasure-set-to-stay/171741440/ , access-date=7 May 2025 , via=Newspapers.com

References

Vanderbilt family residences
Spencer-Churchill family
Buildings and structures in Mayfair
Townhouses in the United Kingdom
Grade II* listed buildings in London
Lists of listed buildings in London
Vanderbilt family