Final answer:
A theatre space that seats 450 people but maintains a close and intimate setting where no one is further than seven or eight rows from the stage is a theatre-in-the-round or arena-style theatre.
Step-by-step explanation:
In a theatre space where no one would be further than about seven or eight rows from the stage despite having 450 seats, we are referring to a theatre-in-the-round or arena-style theatre.
This type of theatre is known for its intimate atmosphere and the unique challenges it poses to actors and directors, as the audience surrounds the stage on all sides. The arena stage restricts large scene changes and demands a more dynamic staging to ensure visibility for the entire audience, thereby creating a close and personal viewing experience.