The building is gone, known now only through a single photograph reproduced in a book, and the site gives almost nothing away. There is no plaque, no obvious interruption in the streetscape, nothing to suggest that a substantial private residence once rose here before the city's expanding commercial appetite swallowed it.

The mansion was built by Richard Synnot and remained in the hands of the Synnot family until at least 1789. Beyond that, the record grows thin. What survives is the photograph that historian Frederick O'Dwyer included in his 1981 book 'Lost Dublin', published by Gill and Macmillan, showing the house as it appeared shortly before its demolition in the 1890s. O'Dwyer describes it as an early eighteenth-century mansion, placing its construction somewhere in the decades after 1700, a period when this part of the city was being developed as a respectable residential address for Dublin's professional and merchant classes. The replacement that followed demolition was a row of Queen Anne style Victorian shops, a building type that borrows loosely from late seventeenth-century English domestic architecture, characterised by red brick, sash windows, and decorative detailing. It is a quietly ironic substitution: one era's domestic grandeur replaced by another era's commercial approximation of a similar aesthetic.

Lower Dorset Street runs north from Parnell Street and is well served by Dublin Bus routes. The Victorian shopfront terrace that replaced the Synnot mansion blends easily into the general texture of the street, which is a busy urban corridor rather than a heritage destination. Anyone curious enough to stand at the approximate site is essentially reading an absence. O'Dwyer's photograph, accessible through libraries or second-hand copies of 'Lost Dublin', is the most tangible way to encounter the building now. The book itself, though out of print, turns up with some regularity in Dublin's second-hand bookshops and is a useful guide to the many city buildings that disappeared before photographic documentation became routine.