older 4S (south of camino del norte), the rate was 0.5% based on home prices from 2002, so you could have homes with just $2500/year for a 3,000 sqft home.
newer 4S (north of samino del norte), the rate jumped to 0.75% based on home prices from 2006, so you might have homes with $6000/year for that 3,000 sqft home.
Del Sur, rate of course is pegged at 0.9% based on home prices from 2007, so now we are in the $7500/year range for that same 3,000 sqft home.
as for HOA, 4S homes are very uniform, we are looking at $100-150 in general. Del Sur we are looking at $250/month.
So older 4S may not have pool access, but the difference could mean a saving of up to $6800/year in mello roos/HOA cost.
A well done vinyl pool with spa can cost a homeowner ~$30k. that’s 4 and a half years of that Del Sur surcharge.