According to ITE's Parking Generation ranges, an office has a peak space factor of which range per 1,000 square feet of gross leasable area (GLA)?

• A. 0.5 - 3.0 spaces per 1,000 sq. ft. of GLA
• B. 1.0 - 5.0 spaces per 1,000 sq. ft. of GLA
• C. 5.0 - 25.0 spaces per 1,000 sq. ft. of GLA
• D. 0.67 - 3.5 spaces per 1,000 sq. ft. of GLA

Answer: (A)

The main idea is how ITE expresses peak parking demand for an office per 1,000 square feet of GLA. ITE provides a range to account for variability in office settings, from smaller or mixed-use offices to larger, more parking-intensive ones. For offices, the commonly cited peak space factor is between about 0.5 and 3.0 spaces per 1,000 square feet of GLA. This means that at peak times, you’d expect roughly half a space to three spaces per 1,000 square feet of leasable office area, depending on location and building characteristics.

That’s why the range 0.5–3.0 is the best match: it aligns with the standard documented interval for office parking demand. The other ranges either exceed the typical upper bound or misrepresent the established span for office uses, making them less consistent with ITE’s published ranges.