Can a driveway slope down to a below-street garage?

Yes, this is a genuine, achievable design for sites where the garage sits below street level — though it needs careful attention to gradient standards, drainage, and transition grades to remain safe and compliant.

Drainage is a particularly genuine priority here — water needs to be properly directed away rather than flowing down toward a below-street garage, which would create an obvious, serious problem if not correctly designed.

This kind of driveway benefits from proper engineering input alongside your contractor’s design, given the genuine complexity involved compared to a straightforward flat or gently sloping driveway.

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