1) Architectonic 2) Bailiwick 3) Beaux arts 4) Branch of knowledge 5) Discipline 6) Field 7) Field of study 8) Fine arts 9) House plan related 10) Structural 11) Study 12) Subject 13) Subject area 14) Subject field Found on https://www.crosswordclues.com/clue/architectural
Ar`chi·tec'tur·al adjective Of or pertaining to the art of building; conformed to the rules of architecture. -- Ar`chi*tec'tur*al*ly , adverb Found on http://www.encyclo.co.uk/webster/A/116
adjective of or pertaining to the art and science of architecture; `architectural history`; `architectural design` Found on https://www.encyclo.co.uk/local/20974
of or pertaining to architecture: architectural metals. · conforming to the basic principles of architecture. · having the qualities of architecture; characteristic of architecture; structural; architectonic. Found on https://www.infoplease.com/dictionary/architectural