This is where you can research the mello roos tax information from Placer County Tax Assessor's website. You'll need the APN # (Assessor's Parcel #). The line items with MR at the end are the Mello Roos items
As a rule of thumb, the older the neighborhood the less likely the subject property will have these fees...if the home is approaching 30-35 yrs of age, these fees will most likely be gone (paid off) if they existed in the first place...
BTW - certain areas in Lincoln (Lincoln Crossing comes to mind) have EXCEPTIONALLY high MR fees, could be $300 per month alone (not including your base property tax) on a given property....it pays to take the extra time to look them up!
Good luck, thanks for your question!
Best, Jeff Marr
You'll need the parcel number of the house. I don't think Trulia includes this in the listing of the house, but other real estate sites do. Look for items with "MR" in them.
For example, picked totally at random: 514 Bridgeford Dr, Roseville, CA 95678. (I am not at all associated with this listing.) The parcel # of this property is 363-380-045. Plugging that into the website and clicking on the resulting link shows the property taxes. There's a relatively small Mello-Roos, "City of Rsvl N Ctr CFD#1 MR", at $794.46 per year.
Note that the Mello-Roos taxes are based on square footage, and don't go down if the appraised value drops.