Butterfly plan

[1] It was used primarily in late Victorian architecture and during the early Arts and Crafts movement.

[2] After the original, rectangular house was begun c. 1612, four diagonal wings were added at some time later in the same century.

[3] Victorian interest in the plan originated in the 1891 remodelling of Chesters, Northumberland, by Norman Shaw.

[2] To the original, square house of 1771 he added five wings; three of these were diagonal, creating suntrap flanks for the south and west fronts.

[4] The principle of the butterfly plan was also re-adapted within an overall rectangular overall form, as for instance in Kallio Library in Helsinki, Finland, by architect Karl Hård af Segerstad, completed in 1902.