Eileen, most newer communities will have mello-roos and/or special assessments.
I have only seen a few new communities that do not, however , you pay a little bit more for the home.
You see, Mello-Roos are developer fees passed on to the homeowners for infrastructure and maintenance costs.
Mello-Roos will stay on the property for between 10-50 years , the most common is 30 years.
If the overall monthly cost of owning in a new community fits your budget, then go for it!
Also be aware of HOA fees in certain communities.
If you want to avoid higher tax rates, then search homes pre-1995.
Riverside Mello Roos