The points most admired are extreme simplicity and unity of design, combined with very unusual richness. The breadth of the piers between the windows contributes not a little to that repose which is so essential to simplicity, and hardly less so to stateliness. The string-courses are particularly beautiful, while the cornicione (68 feet from the pavement) gives extraordinary majesty and grandeur to the whole. The roof is covered with Italian tiles; the edifice is faced throughout with Portland stone, and is a very fine specimen of masonry. In building it a strong scaffolding was constructed, and on the top was laid a railway, upon which was worked a traversing crane, movable along the building either longitudinally or transversely; by which means the stones were raised from the ground, and placed on the wall with very little labour to the mason, who had only to adjust the bed and lay the block.[27]

In the centre of the interior is a grand hall, 56 by 50, (the entire height of the building,) resembling an Italian cortile, surrounded by colonnades, below Ionic, and above Corinthian; the latter is a picture-gallery, where, inserted in the scagliola walls, are whole-length portraits of eminent political Reformers; while the upper colonnade has rich floral mouldings, and frescoes of Music, Poetry, Painting, and sculpture, by Parris. The floor of the hall is tessellated; and the entire roof is strong diapered flint-glass, executed by Pellatt, at the cost of 600l. The staircase, like that of an Italian palace, leads to the upper gallery of the hall, opening into the principal drawing-room, which is over the coffee-room in the garden-front, both being the entire length of the building; adjoining are a library, card-room, etc., over the library and dining-rooms. Above are a billiard-room and lodging-rooms for members of the Club; there being a separate entrance to the latter by a lodge adjoining the Travellers' Club-house.

The basement comprises two-storied wine-cellars beneath the hall; besides the kitchen department, planned by Alexis Soyer, originally chef-de-cuisine of the Club: it contains novel employments of steam and gas, and mechanical applications of practical ingenuity; the inspection of which was long one of the privileged sights of London. The cuisine, under M. Soyer, enjoyed European fame. Soyer first came to England on a visit to his brother, who was then cook to the Duke of Cambridge; and at Cambridge House, Alexis cooked his first dinner in England, for the then Prince George. Soyer afterwards entered the service of various noblemen, amongst others of Lord Ailsa, Lord Panmure, etc. He then entered into the service of the Reform Club, and the breakfast given by that Club on the occasion of the Queen's Coronation obtained him high commendation. His ingenuity gave a sort of celebrity to the great political banquets given at the Reform. In his O'Connell dinner, the soufflés à la Clontarf, were considered by gastronomes to be a rich bit of satire. The banquet to Ibrahim Pacha, July 3, 1846, was another of Soyer's great successes, when Merlans à l'Égyptienne, la Crême d'Égypte and à l'Ibrahim Pacha, mingled with Le Gâteau Britannique à l'Amiral (Napier). Another famous banquet was that given to Sir C. Napier, March 3, 1854, as Commander of the Baltic Fleet; and the banquet given July 20, 1850, to Viscount Palmerston, who was a popular leader of the Reform, was, gastronomically as well as politically, a brilliant triumph. It was upon this memorable occasion that Mr. Bernal Osborne characterized the Palmerston policy in this quotation:—

"Warmed by the instincts of a knightly heart,

That roused at once if insult touched the realm,

He spurned each State-craft, each deceiving art,

And met his foes no vizor to his helm.

This proved his worth, hereafter be our boast—

Who hated Britons, hated him the most."

Lord Palmerston was too true an Englishman to be insensible to "the pleasures of the table," as attested by the hospitalities of Cambridge House, during his administration. One of his Lordship's political opponents, writing in 1836, says: "Lord Palmerston is redeemed from the last extremity of political degradation by his cook." A distinguished member of the diplomatic body was once overheard remarking to an Austrian nobleman, upon the Minister's shortcomings in some respects, adding, "mais on dîne fort bien chez lui."