Salt Lake City has many informal neighborhoods. The eastern portion of the city has higher property values than its western counterpart. This is a result of the railroad being built in the western half as well as scenic views from inclined grounds in the eastern portion. Housing is more affordable on the west side, which results in demographic differences. Interstate 15 was also built in a north-south line, further dividing east and west sides of the city.
The west side of the city has historically been a working-class neighborhood, but recently the more affordable nature of the area has enticed many professionals to the neighborhood. The small, increasingly trendy Marmalade District on the west side of Capitol Hill, for example, considered seedy as recently as 5 years ago, was heavily gentrified and is now an eclectic and desirable location.
Sugar House, in southeastern Salt Lake City, has a reputation as a liberal neighborhood and until recently possessed a district of locally owned specialty and niche shops on the corner of 2100 South and 1100 East. The stores that once occupied the street have recently moved to new locations to make way for a condominium and office complex, although the developers have stated that they wish to maintain the character of the area, and retail shops will be allowed at street-level once the complex is completed.
Despite these assurances, residents have been very vocal in their concerns that the neighborhood will lose its unique eclectic appeal and have panned what they call the destruction of one of the few locally owned business districts in the valley.
Just northeast of Downtown is The Avenues, a neighborhood outside of the regular grid system on much smaller blocks. The area from South Temple North to 6th Avenue is a Historical District that is nearly entirely residential, and contains many historical Victorian era homes. Recently the Avenues is becoming known for intimate restaurants and shops opening in old retail space mixed within the community like Hatch Family Chocolates, Avenues Bistro on Third and Jack Mormon Coffee. The Avenues are situated on the upward-sloping bench in the foothills of the Wasatch Range, with the earlier built homes in the lower elevation. The Avenues, along with Federal Heights, just to the east and north of the University of Utah, and the Foothill area, south of the University, contain gated communities, large, multi-million dollar houses, and fantastic views of the valley. Many consider this some of the most desirable real estate in the valley.
In addition to larger centers like Sugar House and Downtown, Salt Lake City contains several smaller neighborhoods, each named after the closest major intersection. Two examples are the 9th and 9th (located at the intersection of 900 East and 900 South Streets) and 15th & 15th (located at the intersection of 1500 East and 1500 South Streets) neighborhoods. These areas are home to foot-traffic friendly, amenities-based businesses such as art galleries, clothing retail, salons, restaurants and coffee shops. During the summer of 2007, 9th and 9th saw sidewalk and street improvements as well as an art installation by Troy Pillow of Seattle, Washington inspired by the 9 Muses of Greek myth, thanks in part to a monetary grant from Salt Lake City.
Many of the homes in the valley date from pre–World War II times, and only a select few areas, such as Federal Heights and the East Bench, as well as the far west side, including parts of Rose Park and Glendale, have seen new home construction since the 1970s.