Market Overview:
The Philadelphia Central Business District (CBD) recorded more than 331,000 square feet (sf) of negative net absorption during Q3. Year-to-date (YTD) leasing activity exceeded 627,000 sf but remained modestly below the comparable 2025 pace, while renewal activity declined 34.7% year-over-year (YOY). Despite weaker headline metrics, demand remained concentrated among high-quality, well-located assets with stable ownership.
More than 50,000 sf of Q3 negative absorption occurred in conversion-bound or financially impaired properties with limited near-term leasing prospects. Excluding these losses, the decline among competitively positioned properties would have measured 285,000 sf. This distinction is increasingly important as vacancy within challenged and conversion-oriented buildings continues to influence aggregate market metrics without necessarily creating viable options for tenants.
When including University City and the Navy Yard however, Philadelphia has recorded positive absorption YTD, most recently aided by Burlington Stores’ acquisition of 3151 Market Street. The transaction converted more than 400,000 sf of vacant life sciences space to owner-user occupancy and moved the property to the city’s trophy office inventory. However, because the building will be owner-occupied, it did not expand the supply of trophy space available for lease. This underscores the broader imbalance: headline vacancy remains elevated, while the supply of high-quality space that meets current occupier requirements remains limited.
Philadelphia’s regional accessibility remains an important advantage in the hybrid work environment. Burlington Stores’ decision to relocate its headquarters to the city highlights the value of access to regional talent, commuter transportation, and the broader Northeast Corridor.
