In urban domestic architecture, both on large mansions and on the more usual terrace houses, mansards became characteristic but not ubiquitous in the late fifties and remained so down to the mid seventies and even later in the West. Boston’s Back Bay district, laid out by Gilman in 1859, has a few mansions along Commonwealth Avenue that resemble somewhat the _hôtels particuliers_ of Paris, and also several mansarded terraces by Bryant & Gilman and other architects in that avenue and in Arlington and Beacon Streets. The materials used are un-Parisian—brownstone like Gilman’s nearby church or dark-red brick with brownstone trim—and the detail is rarely very plausibly French. In general, inspiration still came from London, even if nothing so extensive and spectacularly monumental as Grosvenor Place and Grosvenor Gardens was ever produced. In New York Lienau’s finest terrace, that built in Fifth Avenue between 55th and 56th Streets in 1869, was rather more sumptuous than the Boston examples, being of white marble with very literate ranges of superposed orders. Hunt’s New York work was often so authentically Parisian as quite to lack the bombast of the international Second Empire mode. Especially interesting were his Stuyvesant Flats in 18th Street, New York, of 1869-70. This block was a very early example of an apartment house of the Parisian sort in America, where they did not generally flourish much before the late eighties. For the more characteristic free-standing houses that were built outside cities, in suburbs, in towns, and even in the country, the Second Empire mode was also very popular. Interpreted in wood, painted brown or grey stone colours, these have a distinctly autochthonous character. Generally symmetrical and tightly planned, they did not advance the development of the American house in the way of the rival ‘Stick Style’; but in their emphasis on complicated three-dimensional modelling, especially the modelling of the roofs, they prepared the way for one important aspect of the later and more original ‘Shingle Style’ (see Chapter 15).