If you mean the Philly region, new construction in bucks and Delaware county are high. The lower suburban areas are in montco - like trdiffin Easton.
I was curious and hoped that some of the agents who post here might have more concrete answers for me, knowing that they have been in the business long enough to see more properties than I have in about a year's time. Having looked at comparable houses in a few different neighborhoods I was really surprised to see a jump from about 2500/yr up in the art museum area to over 5000/yr in society hill when rittenhouse sq hovered around 3500.
The older more estblished and of course high-end properties are going to have the higher taxes but some of the rehabed condos and new consution properties in the city do have the 10 year tax abatements.
Why do you ask?