Summer Hill's boundaries are Parramatta Road and Liverpool Road to the north, the rear of the properties on the west side of Prospect Road (with a detour around Trinity Grammar School) to the West, Old Canterbury Road to the south, and the Inner West Light Rail to the east.
North of Summer Hill is the suburb of Haberfield, to the east is Lewisham, to the south is Dulwich Hill, and to the west is Ashfield.

Summer Hill has a mix of Federation-era houses, with medium density apartment blocks near the railway station.
Local independent business people run most of the shops.
The local council has defined a village character for the suburb.
Summer Hill is a suburb rich in heritage.
More than one hundred properties are heritage listed, and the strong feelings of some residents of the suburb towards protecting the local architecture has seen the introduction of a heritage review, which is expected to add more properties to the heritage register.

Despite formerly being working class, Summer Hill and many of the surrounding suburbs have gradually undergone gentrification over recent years.
Culturally, Summer Hill is a blend of medium-density European Sydney suburbia, with Italian influences (which are most evident in Leichhardt to the east and Haberfield to the north), Asian (mainly Chinese) influences (which are most strongly evident in Ashfield to the West), and smaller influences from many other cultures.
Summer Hill's boundaries are Parramatta Road and Liverpool Road to the north, the rear of the properties on the west side of Prospect Road (with a detour around Trinity Grammar School) to the West, Old Canterbury Road to the south, and the Inner West Light Rail to the east. North of Summer Hill is the suburb of Haberfield, to the east is Lewisham, to the south is Dulwich Hill, and to the west is Ashfield.
Summer Hill has a mix of Federation-era houses, with medium density apartment blocks near the railway station. Local independent business people run most of the shops. The local council has defined a village character for the suburb. Summer Hill is a suburb rich in heritage. More than one hundred properties are heritage listed, and the strong feelings of some residents of the suburb towards protecting the local architecture has seen the introduction of a heritage review, which is expected to add more properties to the heritage register.
Despite formerly being working class, Summer Hill and many of the surrounding suburbs have gradually undergone gentrification over recent years. Culturally, Summer Hill is a blend of medium-density European Sydney suburbia, with Italian influences (which are most evident in Leichhardt to the east and Haberfield to the north), Asian (mainly Chinese) influences (which are most strongly evident in Ashfield to the West), and smaller influences from many other cultures.
Summer Hill, New South Wales