The other and unpublished design (Fig. [165]) is of a somewhat different type. The centre of the house is occupied by a vast and lofty staircase mainly lighted from a cupola. Round this is a broad corridor giving access to the various rooms, which are of fine dimensions. The same disposition appears to apply to all three floors, save that on the topmost the corridor is omitted, and thus an open space is provided which gives light to the hall on one side and to a passage on the other, which is taken off the width of the rooms. There is no indication where the kitchens lie; the section shows no basement, and there are no indications of separate wings.

The section gives an adequate idea of the internal treatment; it shows the great hall and its lighting, as well as the very simple decoration of the rooms, far plainer in this case than in most of those published in his book. The rooms are usually panelled somewhat after the manner shown in Figs. [166] and [167]. This gives an air of distinction to them, but it severely limits (and perhaps not unhappily) the number of pictures and prints which can be hung on the walls. A very similar treatment is applied to the staircases (Fig. [168]). In one instance the walls were apparently to be painted with an architectural composition, which introduces a touch of poetry into the practical prose of Gibbs’s ordinary handling (Fig. [169]). There is a house in Dean Street, Soho (Fig. [171]), where the staircase walls are decorated with figure subjects by Hogarth, somewhat after the fashion of Gibbs’s drawing, but more elaborate in design. The decoration of the rooms already illustrated includes in each case the chimney-piece, but a further example, to a larger scale (Fig. [170]), will serve to show the kind of design which was widely adopted, not only by Gibbs but by most architects during the first half of the eighteenth century.

Campbell was also a practising architect as well as an illustrator of the art, and he was consulted in the erection of Houghton Hall, in Norfolk, which is one of the finest examples of the great houses of its period, a period when nobles and wealthy gentlemen were vying with one another in building fine homes in the fashionable Italian manner, and surrounding them with equally fine gardens. It was the celebrated Prime Minister, Sir Robert Walpole, who built Houghton; and Colin Campbell supplied him with the design in the year 1722.[71] It would appear, however, that Campbell did not carry out the work himself, but that his designs were handed over to Ripley, who altered them in many respects while following the general idea pretty faithfully. The sizes and disposition of the rooms were varied, both in the central block and in the wings. The proportions of the windows were altered, and Campbell’s projecting portico was omitted, the columns being attached to the wall instead of standing some fifteen feet in front of it. The attic stories of his corner pavilions were also changed into domes. On the whole these slight alterations tended to improve the appearance, but in spite of these variations, Campbell must have the credit for the design (Fig. [173]).

Fig. 172.—Houghton, Norfolk. Plan of Principal Floor, 1722.

The whole arrangement is of the prevalent type. There is a noble main building flanked on each side at some distance by a subsidiary block, connected to the house by colonnades which are curved on one face and rectangular on the other. The south wing contains the kitchen and servants’ quarters; the north wing is occupied by a picture gallery and chapel, but much of this particular building has been destroyed by fire.

The house itself is of three stories, including the basement, which is used in part for domestic purposes, but serves in the main to raise the principal floor well above the ground. This floor (see plan, Fig. [172]) contains the fine stone hall, a cube of 40 ft., a saloon somewhat smaller and less lofty, a dozen fine rooms and some staircases, of which the chief one is magnificent. All these rooms are symmetrically arranged, and the doorways are so disposed as to produce long vistas when the whole series is opened. The four rooms in the corners can only be gained by passing through other rooms. The whole effect is stately both inside and out, and although in the present day there may be a certain lack of comfort, yet the house fully met the needs of the time when it was built, and it provided the atmosphere of splendour which was demanded by all great persons of the period. The whole façade is over 500 ft. long, the central block has a frontage of 165 ft., and the wings 110 ft. These are handsome dimensions; they are indeed so large that it is not easy for the eye to include the whole group at once from any ordinary viewpoint. The illustration (Fig. [173]) only shows the house and its colonnades, beyond which the reader’s imagination must add the wings, which are strictly subordinated in height to the main building.

Fig. 173.—HOUGHTON, Norfolk.