I have lived in areas with only single family dwellings(Tempe AZ, density 5,203 people per square mile.) and in areas with high rises(Hoboken NJ, density 41,038 people per square mile) and I can attest that most noise is from the cars on the main roads of the city, which largely depends on urban design, e.g. Hoboken has only 2 main arterial roads(Washington Street and Observer Highway) which excludes most of the noise from the interiors.
> not crowded
By what metric? I can walk my dog outside easily, travel easily in the train to manhattan, and get reservations to any restaurant on the day in Hoboken. I don't think most places are as crazy crowded as Manhattan (Brooklyn, Queen and Bronx are much lower density) where the dynamics are different because work and tourism.
Are most single family zoned places in California work building heavy areas and touristy destinations?
> easy parking.
I can find parking for ~200$ per month here. So it is kind of expensive, i'll give you that.