The Architectural Heritage Society of Scotland (AHSS) is a society dedicated to the protection and study of the built heritage of Scotland. It has around 1000 members and five regional groups responsible for commenting on planning applications in their area together with educational activities. The Society publishes periodically the academic journal, Architectural Heritage , together with a twice-yearly magazine addressing a wider range of built heritage-related matters.
In 1956, a campaign group, the Georgian Group of Edinburgh, was established to oppose the demolition of 18th-century houses around George Square in Edinburgh. Eleanor Robertson and the architectural historian Colin McWilliam were instrumental in its founding. 
In 1957, George Baillie-Hamilton, 12th Earl of Haddington, became the first president of the group, which was renamed as the Scottish Georgian Society in 1959. From the 1960s the society began to broaden its interest beyond the Georgian period and its geographical locus. In the 1960s, the Scottish Georgian Society formed a West of Scotland Group based in Glasgow under the chairmanship of bookseller Robert Clow, who had earlier formed the influential New Glasgow Society with architect Geoffrey Jarvis and others. In 1984, the present AHSS name was adopted to suit. The Society's logo, a drawing of the Old Town House in Aberdeen, was adopted in the 1960s.  In 2009, the society was reconstituted as a company with the status of a registered charity. 
Since its establishment, the Society has been involved in commenting and advising on development proposals which affect the historic buildings and townscapes of Scotland. The Society also runs regular lecture series on Scottish architecture, architects, and buildings.
The Society is organized into five regional groups, each of whom undertake casework and organize educational activities. Management is by a national council comprising representatives of the five regional groups and elected members. As of October 2019 the office bearers were:
The Society's national office was based at the Glasite Meeting House in Barony Street, Edinburgh, built in 1836 as a chapel for the Glasite Christian sect. In October 2012 it was given, with an endowment, to the Scottish Historic Buildings Trust (SHBT) and the Society is now based at 15 Rutland Square, Edinburgh, EH1 2BB.
Since 1990, the Society has published Architectural Heritage , an annual academic journal dedicated to the study of Scotland's buildings. These comprehensive studies of many of Scotland's most renowned architects – including thematic studies on William Adam, Robert Adam, the contemporaries of Charles Rennie Mackintosh, the Gothic Revival in Scotland, and essays on Scottish Architects' Papers – are published alongside a wide range of other architectural topics, creating a comprehensive and essential source for Scotland's architecture.
The twice-yearly magazine contains reports on built heritage issues, casework, and group events.
Robert Adam was a British neoclassical architect, interior designer and furniture designer. He was the son of William Adam (1689–1748), Scotland's foremost architect of the time, and trained under him. With his older brother John, Robert took on the family business, which included lucrative work for the Board of Ordnance, after William's death.
Sir Basil Urwin Spence, was a Scottish architect, most notably associated with Coventry Cathedral in England and the Beehive in New Zealand, but also responsible for numerous other buildings in the Modernist/Brutalist style.
William Adam was a Scottish architect, mason, and entrepreneur. He was the foremost architect of his time in Scotland, designing and building numerous country houses and public buildings, and often acting as contractor as well as architect. Among his best known works are Hopetoun House near Edinburgh, and Duff House in Banff. His individual, exuberant style built on the Palladian style, but with Baroque details inspired by Vanbrugh and Continental architecture.
William Robertson FRSE FSA Scot was a Scottish historian, minister in the Church of Scotland, and Principal of the University of Edinburgh. "The thirty years during which [he] presided over the University perhaps represent the highest point in its history." He made significant contributions to the writing of Scottish history and the history of Spain and Spanish America.
The Georgian Group is a British charity, and the national authority on Georgian architecture built between 1700 and 1837 in England and Wales. As one of the National Amenity Societies, The Georgian Group is a statutory consultee on alterations to listed buildings, and by law must be notified of any work to a relevant listed building which involves any element of demolition.
Colin McWilliam (1928–1989) was a British architecture academic and author.
John James StevensonFRSE FSA FRIBA, usually referred to as J. J. Stevenson, was a British architect of the late-Victorian era. Born in Glasgow, he worked in Glasgow, Edinburgh and London. He is particularly associated with the British Queen Anne revival style.
Sir John James Burnet was a Scottish Edwardian architect who was noted for a number of prominent buildings in Glasgow and London. He was the son of the architect John Burnet, and later went into partnership with his father, joining an architectural firm which would become an influential force in British Modern architecture in the 20th century.
The Moray House School of Education and Sport is a school within the College of Arts, Humanities and Social Science at the University of Edinburgh. It is based in historic buildings on the Holyrood Campus, located between the Canongate and Holyrood Road.
Kerelaw Castle is a castle ruin. It is situated on the coast of North Ayrshire, Scotland in the town of Stevenston.
David MacGibbon and Thomas Ross were Scottish architects. Their practice, MacGibbon and Ross was established in 1872 and continued until 1914. They are best known today for their comprehensive published surveys of Scotland's architectural heritage.
The city of Glasgow, Scotland is particularly noted for its 19th-century Victorian architecture, and the early-20th-century "Glasgow Style", as developed by Charles Rennie Mackintosh.
The architecture of the United Kingdom, or British architecture, consists of a combination of architectural styles, dating as far back to Roman architecture, to the present day 21st century contemporary. England has seen the most influential developments, though Ireland, Scotland, and Wales have each fostered unique styles and played leading roles in the international history of architecture. Although there are prehistoric and classical structures in the United Kingdom, British architectural history effectively begins with the first Anglo-Saxon Christian churches, built soon after Augustine of Canterbury arrived in Great Britain in 597. Norman architecture was built on a vast scale throughout Great Britain and Ireland from the 11th century onwards in the form of castles and churches to help impose Norman authority upon their dominions. English Gothic architecture, which flourished between 1180 until around 1520, was initially imported from France, but quickly developed its own unique qualities.
The architecture of Scotland includes all human building within the modern borders of Scotland, from the Neolithic era to the present day. The earliest surviving houses go back around 9500 years, and the first villages 6000 years: Skara Brae on the Mainland of Orkney being the earliest preserved example in Europe. Crannogs, roundhouses, each built on an artificial island, date from the Bronze Age and stone buildings called Atlantic roundhouses and larger earthwork hill forts from the Iron Age. The arrival of the Romans from about 71 AD led to the creation of forts like that at Trimontium, and a continuous fortification between the Firth of Forth and the Firth of Clyde known as the Antonine Wall, built in the second century AD. Beyond Roman influence, there is evidence of wheelhouses and underground souterrains. After the departure of the Romans there were a series of nucleated hill forts, often utilising major geographical features, as at Dunadd and Dunbarton.
Morris and Steedman was an architecture firm based in Edinburgh, Scotland. The firm was founded by James Shepherd Morris (1931–2006) and Robert Russell Steedman in the 1950s. The pair are best known for their private houses in the modernist style, built during the 1950s and 1960s, described as "arguably the most important series of 20th century houses by a single practice in Scotland". Both founders retired in 2002, although their practice continues as Morris and Steedman Associates.
Charles McKean FRSE FRSA FRHistS FRIBA was a Scottish historian, author and scholar.
George Square is a city square in Edinburgh, Scotland. It is in the south of the city centre, adjacent to the Meadows. It was laid out in 1766 outside the overcrowded Old Town, and was a popular residential area for Edinburgh's better-off citizens. In the 1960s, much of the square was redeveloped by the University of Edinburgh, although the Cockburn Association and the Georgian Group of Edinburgh protested. Most but not all buildings on the square now belong to the university. Principal buildings include the Gordon Aikman Lecture Theatre, Edinburgh University Library, 40 George Square and Appleton Tower.
Architecture in modern Scotland encompasses all building in Scotland, between the beginning of the twentieth century and the present day. The most significant architect of the early twentieth century was Charles Rennie Mackintosh, who mixed elements of traditional Scottish architecture with contemporary movements. Estate house design declined in importance in the twentieth century. In the early decades of the century, traditional materials began to give way to cheaper modern ones. After the First World War, Modernism and the office block began to dominate building in the major cities and attempts began to improve the quality of urban housing for the poor, resulted in a massive programme of council house building. The Neo-Gothic style continued in to the twentieth century but the most common forms in this period were plain and massive Neo-Romanesque buildings.
Architecture of Scotland in the Industrial Revolution includes all building in Scotland between the mid-eighteenth century and the end of the nineteenth century. During this period, the country underwent an economic and social transformation as a result of industrialisation, which was reflected in new architectural forms, techniques and scale of building. In the second half of the eighteenth century, Edinburgh was the focus of a classically inspired building boom that reflected the growing wealth and confidence of the capital. Housing often took the form of horizontally divided tenement flats. Some of the leading European architects during this period were Scottish, including Robert Adam and William Chambers.
Catherine Holway Cruft (1927-2015), known as Kitty, was a British art historian, preservationist and curator. She was an authority on the history of Scottish architecture.