I too have looked at the developments you mentioned. The info you got is correct. (FYI, MelloRoos is identified as “CFD”, which I believe stands for community facilities district.)
I agree with Sakina96 about Cordelene, they are in the San Marcos Schoold district, but have Carlsbad prices. I wonder how many people who bought in there may be getting a surprise on this. And if you wonder what the difference is, go sit out in front of San Marcos High when it lets out one day and decide if that is where you want your kid to go. It looked like baggy-panted thug punk central to me.
Yup, if you are going to buy new, you might as well figure on at least a thousand a month on top of your mortgage for taxes, MR and association. And….welcome to the neighborhood!!!