Insights from the 2026 UMT/KOP Office Report

King of Prussia District has released our Upper Merion Township/King of Prussia (UMT/KOP) Office Report, highlighting the continued strength, resilience and evolution of one of Greater Philadelphia’s largest suburban office markets.

The report examines office market performance, workforce characteristics, redevelopment activity and the region’s growing aerospace and defense cluster. Despite ongoing shifts in workplace trends, King of Prussia remains one of the region’s strongest suburban office markets, supported by its strategic location, high-quality office inventory and unmatched mix of amenities.

Here are five key insights from the report:

1. King of Prussia remains the region’s largest and most resilient suburban office market.
   With approximately 7.8M SF of office inventory, UMT/KOP leads peer markets and posts the lowest vacancy rate among them at 11.3%.
2. Demand for Class A office space continues to outperform.
   Asking rents have climbed to $29.09/SF overall and $34.14/SF for Class A space, reflecting demand for high-quality, well-located buildings.
3. Redevelopment is reshaping underutilized office properties.
   Office sites across UMT/KOP are being repositioned through redevelopment and adaptive reuse for residential, logistics and digital infrastructure.
4. King of Prussia serves as a regional center for aerospace and defense operations.
   Industry leaders including Lockheed Martin, Arcfield, Peraton and KBR collectively occupy approximately 600K SF of office space and support more than 3,000 workers.
5. Amenities and accessibility remain major competitive advantages.
   Regional connectivity, walkability and a strong mix of dining, retail and lifestyle amenities continue to attract employers and talent. These findings underscore King of Prussia’s ability to adapt to changing workplace trends while maintaining its position as a premier destination for employers, employees and investors.

Explore the full report here.