King of Prussia & Conshohocken established stock delivers a standard Cat-A baseline; tenant fit-out is typically Basic or Mid spec.
King of Prussia & Conshohocken established stock delivers a standard Cat-A baseline; tenant fit-out">fit-out is typically Basic or Mid spec.
15–40,000 sqft floor plates available across newer Class A stock; 9'+ slab-to-slab and modern MEP common.
City-wide Philadelphia fit-out bands: Basic $75–105/sqft, Mid $110–160/sqft, High-end $165–235/sqft, Trophy $235–350/sqft.
| city | Philadelphia |
|---|---|
| submarket | King of Prussia & Conshohocken |
| tier | established |
| averageRentLocal | $32/sqft/yr |
| cityClassARentUsd | $38/sqft/yr |
| cityVacancyPct | 21.6% |
Reviewed by Miriam Hollander — Lead market analyst. Last updated 2026-04-15. See our methodology and editorial standards.