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Apartment construction in Philadelphia's suburbs overtakes city for first time in 15 years

Montgomery County accounts for nearly 80% of active suburban development
CoStar Analytics
August 17, 2026 | 6:45 P.M.

For the first time in more than 15 years, developers are building more apartments in Philadelphia's suburbs than in the city itself. The construction trend reflects a sharp drop in the number of apartments under construction in the city, alongside steadily growing demand in the suburbs.

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