Gentrification is hitting one North Philadelphia neighborhood hard. According to the Eastern North Philadelphia Coalition (ENPC), the price for a typical house has risen from about $40,000 in 2001 to $250,000 or more in 2007. ENCP wants to create a community land trust, in which the community would own the land and lease it to groups providing affordable housing, local businesses, and green space. Land trusts can be effective in combating gentrification in the right circumstances, says Carolyn Adams, professor of geography and urban studies at Temple University. "A community that creates a land trust is trying to take a particular geographic location out of the marketplace so that its price is not affected by any upward movement in market values that might ultimately force gentrification in the community," she says.