At number 12, one of that street's older survivors is thought to date from around 1735, making it a rare remnant from the early decades of organised residential building in this part of Dublin South City. Georgian terraced townhouses of this period were typically constructed with brick facades, sash windows, and a formal arrangement of rooms across several storeys, intended for the professional and merchant classes who were consolidating their presence close to the nascent institutions of civic life.

The house is noted by the architectural historian Maurice Craig in his 1969 survey, which remains one of the foundational references for Dublin's built heritage. Craig places the construction at circa 1735, situating it within the broader expansion of the Molesworth estate lands, which were being laid out for development in the early to mid eighteenth century. The street itself took its name from the Viscounts Molesworth, and by the time number 12 was likely being built, the area was becoming a fashionable address within easy reach of what would later become Leinster House. That proximity to political and institutional Dublin has meant the street has retained a certain seriousness of purpose across the centuries, even as individual buildings changed hands and function.

The building sits on a street that remains in active use, flanked by offices, professional chambers, and the occasional institution, so any visit is necessarily a street-level affair rather than an organised heritage experience. There is no dedicated access or interpretive signage specific to this property. What a visitor can do is observe the fabric of the streetscape and consider the age of what is in front of them: a structure that predates much of what surrounds it, quietly absorbed into the working life of the city. The Molesworth Street area is walkable from St Stephen's Green and from the National Library on Kildare Street, and the street itself is short enough that number 12 is easily located without difficulty.