The school gained specialist college status in 2005. Millfield consists of:

• A Block (the original buildings) - which houses Arts, Technology (resistant materials and food studies), I.C.T, Drama, Dance, Canteen, Offices, Medical room, Media studies and Performing Arts
• B, C and D Block (the tower block) - which houses Biology, Chemistry, Physics, French and Spanish
• F and G Block (the southern block) - which houses Geography, History, Religious Education, Citizenship and the Library
• H Block (the northern block downstairs) - which houses Maths
• J Block (the northern block upstairs) - which houses both English Language and English Literature.

The school has a large field, two tarmac playgrounds and sports hall for P.E sessions and for use by the school sport clubs.