Sunset Valley is the pre-made neighborhood that ships with The Sims 3. It is modeled after the classic American suburbs of the 1950s, doing much to blend a nostalgia with a more modern taste of architecture, as can be seen about the town.
The Sims 3: Seasons LP
Fans of Lifesimmer voted for her The Sims 3: Seasons LP to be hosted in Sunset Valley. Mackayla Twist would go on to spent her life in this town, despite being native to Moonlight Falls. It is very likely that Mackayla's husband, Kris Twist, is a Sunset Valley native, as it would explain Mackayla's relocation to the town.