Of _Eaton Square_, one portion only is built at present: as laid out, planted, and railed in, it is intended to occupy an area of about fourteen acres, and will be bounded by four rows of houses on the north side, and the like number on the south side, having the king's private road extending east and west through the centre. It measures 600 yards long by 120 yards wide, between the houses. At the eastern extremity is a new church, built from the designs of Henry Hakewill, Esq. To the north of this district, at Hyde Park Corner, is a large new edifice appropriated to _St. George's Hospital_. It is a commodious and handsome building, from the designs of R. Smirke, Esq. Near it, and forming an entrance lodge to the Palace Gardens, is a bold, large, and highly-decorated archway, built from the designs of Decimus Burton, Esq. Opposite is a screen of columns, with three entrance archways, a lodge, &c. constituting an architectural entrance to Hyde Park. Three other lodges, with gates, by Mr. Burton, form so many other entrances to the Park from the east and north--_Apsley House_, the town mansion of the Duke of Wellington, at the south-east angle of Hyde Park, is rebuilding from the designs of Messrs. B. and C. Wyatt, and will form a handsome object at this entrance to the metropolis. The Earl of Grosvenor has set a most laudable example to our opulent nobility, in the new wing to his mansion in Grosvenor Street, as a gallery for his valuable pictures. It is a handsome and imposing design, and does honour to the architect, Mr Cundy. The new _Club Houses_ in St. James's Street, especially that near the southern end, present imposing fronts; and it may be added, that most of the other Club Houses have contributed very much to adorn their respective situations, and to impart a strictly architectural character to our street buildings. The site of Carlton House, and its gardens, is occupied by a wide street, by a lofty terrace overlooking the Park, by club houses, &c. Two of the latter terminate Waterloo Place, and are appropriated to "_the United Service_," and "_the Athenaeum_;" the first built from the designs of Mr. Nash, and the latter from those of Mr. D. Burton. From Charing Cross to Exeter 'Change an amazing improvement has commenced. All the houses on the north side of the Strand are taking down, and others raising, farther back, by which the street will be much widened, and the new buildings will assume better faces, if not better accommodation, for the tradesmen who occupy them. That museum of sheds, stalls, and filth, _Covent Garden_, is also to be cleared and cleansed, and respectable ranges of shops and warerooms are to be erected. It is now confidently said, that "_the King's College of London_" is to be attached to the eastern side of Somerset House; and that Mr. Smirke is commissioned to make a design for the building.