Mello-Roos in Irvine: How It Works and How to Check a Home

What is Mello-Roos?

A Mello-Roos special tax is a charge levied by a Community Facilities District, a district formed under California's Mello-Roos Community Facilities Act to pay for public facilities, and in some cases their upkeep, within a defined area. Three things define how it shows up for an Irvine homeowner:

• It is billed on the property tax bill. According to the Orange County Treasurer-Tax Collector, Mello-Roos charges appear on the county property tax bill under "Special Assessment Charges," listed by the name of the CFD bond, alongside the regular property tax.
• It is separate from HOA dues. It is levied by a public agency and collected on the tax bill, not by an association, so it is not part of HOA dues and has to be asked about separately.
• It is set per district, not per city. "Irvine has Mello-Roos" is not a useful statement on its own. The amount, the maximum it can reach, how much it can rise each year and how long it can be levied depend on the specific district and the terms that apply to that parcel.

That last point is why no single Irvine Mello-Roos figure exists, and why any number for a particular home has to come from that home's own documents.

How does Mello-Roos work in Great Park?

The City of Irvine publishes a summary of Community Facilities District No. 2013-3, which covers the Great Park and the Great Park Neighborhoods. It is one public example of how an Irvine CFD can be structured.

Two points in that table matter more than the formation details.

The charge can rise every year. The City says the Great Park charge can increase by up to 2% per year, based on increases in property values, similar to property taxes. A buyer should not assume the year-one amount stays flat.

It does not simply end. A common assumption is that Mello-Roos disappears when the bonds are paid off. In Great Park, the charge drops substantially after the original bonds are repaid, but a portion continues indefinitely for maintenance. Other districts may be structured differently, which is exactly why the district's own terms need to be read.

Does a seller have to disclose Mello-Roos in California?

Usually. Under California Civil Code §1102.6b, when a home covered by the state's residential transfer-disclosure rules is subject to a Mello-Roos special-tax lien, and a notice is not already required under Government Code §53341.5, the seller must make a good faith effort to obtain a disclosure notice concerning the special tax, as provided in Government Code §53340.2, from each local agency that levies a Mello-Roos special tax on the property, and deliver the notice or notices to the prospective buyer, as long as the agency makes them available. A notice prepared by a private provider may combine the information for two or more districts in one document.

For a buyer, that notice is the starting document. For a seller, gathering it before listing avoids a gap in the disclosure package later.

How do you check whether an Irvine home has Mello-Roos?

1. Ask for the special-tax disclosure notice and the CFD number. If more than one district levies a tax on the parcel, the notice or notices should name each district.
2. Look up the parcel's current tax bill. The Orange County Treasurer-Tax Collector's property tax search at taxbill.octreasurer.gov finds a parcel's bill. According to the Treasurer-Tax Collector, Mello-Roos charges appear on the bill under "Special Assessment Charges," by the name of the CFD bond, with a phone number for the agency that issued the debt. Use the current bill rather than a figure repeated from an older listing.
3. Read the district's annual report. For Great Park, the City of Irvine issues an annual report on CFD No. 2013-3 covering collections, spending and remaining debt.
4. Compare the remaining term. Find out roughly how many years of bond repayment remain and what continues afterward. Two homes with the same charge today can differ a great deal over a ten- or twenty-year hold.
5. Check how the charge changes each year. In Great Park the special tax can rise by up to 2% a year. Confirm the terms for any other district from its own documents.

How much can Mello-Roos change the cost of owning a home?

It depends on the district and the parcel, which is why this article does not quote amounts for any Irvine village. What can be shown is the arithmetic of an escalating special tax.

Hypothetical example. The figures below are invented round numbers to illustrate the math. They are not the special tax for any Irvine district, village or home.

Two homes sell at the same price and carry the same $400 per month in HOA dues ($4,800 a year, held flat for simplicity). Home A has no special tax. Home B has a hypothetical special tax of $4,000 in its first year that rises by the full 2% each year, the maximum the City describes for Great Park's district, where actual increases are tied to property values.

Years 4 and 6 to 9 are not shown but are included in the 10-year totals.

In this example, the year-ten special tax is about 20% higher than the year-one amount, and over ten years Home B costs about $43,800 more to carry in dues and special tax. A $4,000 annual special tax works out to about $333 a month, and none of it appears in the HOA figure. The table leaves out the mortgage, the regular property tax and insurance, which apply to both homes.

The practical lesson is to compare homes on price plus carrying cost, using the real figures from each home's tax bill and special-tax notice, and to factor in how many years remain before any drop in the charge.

Irvine homes often carry two association fees, too

Mello-Roos is not the only recurring charge that a single quoted number can hide. According to the Irvine neighborhood guide, 762 of the 2,056 Irvine homes sold in the twelve months covered by that guide (current as of September 8, 2026), about 37%, carried a second association assessment on top of the first.

So a complete monthly comparison for an Irvine home can involve a master association, a sub-association and one or more special taxes, each billed separately. When comparing two homes, ask for all of them by name: the dues for every association, and the CFD number and current special-tax amount for every district levying one.