Blythswood House was a neoclassical

Neoclassical architecture

Neoclassical architecture was an architectural style produced by the neoclassical movement that began in the mid-18th century, manifested both in its details as a reaction against the Rococo style of naturalistic ornament, and in its architectural formulas as an outgrowth of some classicizing...

 mansion

Mansion

A mansion is a very large dwelling house. U.S. real estate brokers define a mansion as a dwelling of over . A traditional European mansion was defined as a house which contained a ballroom and tens of bedrooms...

 at Renfrew

Renfrew

-Local government:The town of Renfrew gave its name to a number of local government areas used at various times:*Renfrew a town to the west of Glasgow*Renfrewshire, the present unitary local council area in which Renfrew is situatated....

, Scotland

Scotland

Scotland is a country that is part of the United Kingdom. Occupying the northern third of the island of Great Britain, it shares a border with England to the south and is bounded by the North Sea to the east, the Atlantic Ocean to the north and west, and the North Channel and Irish Sea to the...

. It was designed in 1821, by the eminent architect James Gillespie Graham

James Gillespie Graham

James Gillespie Graham was a Scottish architect, born in Dunblane. He is most notable for his work in the Scottish baronial style, as at Ayton Castle, and he worked in the Gothic Revival style, in which he was heavily influenced by the work of Augustus Pugin...

 for Archibald Campbell

Archibald Campbell, 1st Baron Blythswood

Lieutenant-Colonel Archibald Campbell, 1st Baron Blythswood FRS was a Scottish Conservative politician....

, the Member of Parliament

Member of Parliament

A Member of Parliament is a representative of the voters to a :parliament. In many countries with bicameral parliaments, the term applies specifically to members of the lower house, as upper houses often have a different title, such as senate, and thus also have different titles for its members,...

 for the Glasgow District of Burghs.

The house contained a well known laboratory which was used from 1892 to 1905 to experiment into many areas at the borders of physics, including the use of cathode rays, X-rays, spectroscopy and radioactivity.

The house remained the seat of the Lords Blythswood

Baron Blythswood

Baron Blythswood, in the County of Renfrew, was a title in the Peerage of the United Kingdom. It was created on 24 August 1892 for Sir Archibald Campbell, 1st Baronet, the former Member of Parliament for Renfrew, with remainder failing heirs male of his own to five of his younger brothers and the...

 until its demolition in 1935. Five years later the family title became extinct.