Mello-Roos is the single most misunderstood line on a Santa Clarita Valley property-tax bill. This pillar guide explains how California's CFD special taxes work, why SCV tracts carry materially higher special taxes than much of the neighboring Ventura-area market, and — most important — how to verify the exact amount on any specific parcel before you buy.

Direct AnswerMello-Roos is a separate special tax levied by a Community Facilities District (CFD) to fund infrastructure and services, layered on top of the ~1% Los Angeles County base property tax. In the Santa Clarita Valley it varies tract-by-tract and phase-by-phase and runs materially higher than much of the neighboring Ventura-area market. We do not publish per-tract dollar figures — confirm the exact special-tax line on each parcel's LA County tax bill or with the CFD administrator.
Information current as of 2026.

General education, not advice. This page explains financing, property-tax, and special-assessment concepts for Santa Clarita Valley buyers and homeowners. It is not financial, tax, or legal advice and it is not a loan offer. Mortgage rates and program terms change constantly, and tax rules depend on your specific facts. Confirm every figure and qualifying question with a licensed lender, CPA, or attorney before you act.

What Mello-Roos actually is

Mello-Roos is the nickname for the California Community Facilities Act of 1982 (named for legislators Henry Mello and Mike Roos). It lets a local agency form a Community Facilities District (CFD) and levy a special tax on parcels inside that district to fund infrastructure and sometimes ongoing services — roads, sewers, parks, schools, and other facilities tied to new development.

The special tax is separate from your ~1% Prop 13 base property tax. It appears as its own line (or several lines) on the Los Angeles County secured property-tax bill. Unlike ad valorem tax, a Mello-Roos special tax is generally calculated by a formula in the formation documents — often based on lot size, building square footage, or a flat per-unit amount — not on your home's assessed value.

  • It is a lien that runs with the land, not with the owner.
  • Most CFD bonds are repaid over a fixed term (commonly 20–40 years); that bond-related portion can roll off when the bonds are retired, while services CFDs may be ongoing.
  • The exact amount and annual escalator are set per district in the formation documents and recorded Notice of Special Tax Lien.

Why SCV Mello-Roos runs materially higher than the neighboring Ventura-area market

Most homes that carry Mello-Roos in our region sit in the master-planned tracts of the Santa Clarita Valley, where large CFDs funded the roads, schools, and infrastructure that opened up new development. As a practical matter, SCV special taxes tend to run materially higher than what buyers see in much of the neighboring Ventura-area market, where fewer parcels sit inside large, recently formed CFDs.

That is a generalization about how common and how large these districts are — not a quote for any one home. The only number that matters is the special-tax line on the specific parcel you are buying.

Do not rely on a neighbor's figure. Mello-Roos varies by tract, by phase, and sometimes lot-by-lot within the same community. Two homes on the same street can carry different special taxes. Always verify the exact amount on the parcel's own tax bill.

SCV tracts commonly associated with Mello-Roos

Many of the newer master-planned tracts in the Santa Clarita Valley were built with CFD financing. The table below lists communities buyers frequently ask about. The Mello-Roos column intentionally shows no dollar figures — because the amount varies by tract and phase, you must verify each parcel.

Tract / communityAreaMello-Roos
WestridgeValenciaVaries by phase — verify per parcel
Tesoro del ValleValenciaVaries by phase — verify per parcel
Tesoro HighlandsValenciaVaries by phase — verify per parcel
FivePoint / Valencia (Newhall Ranch)ValenciaVaries by phase — verify per parcel
Plum CanyonSaugusVaries by phase — verify per parcel
BridgeportValenciaVaries by phase — verify per parcel
West CreekValenciaVaries by phase — verify per parcel
Williams RanchCastaicVaries by phase — verify per parcel
Skyline RanchCanyon CountryVaries by phase — verify per parcel

Inclusion here does not mean every home in a community carries Mello-Roos, and exclusion does not mean none do. Always check the specific parcel.

How to verify the exact Mello-Roos on a specific parcel

Because amounts vary by tract and must be confirmed per parcel, treat any range you see online as a starting point only. To get the real number:

  1. Pull the parcel's Los Angeles County secured property-tax bill and read the direct/special-assessment lines — Mello-Roos appears here, often with a phone number for the CFD administrator.
  2. Call the listed CFD administrator to confirm the current annual amount, the escalator (how much it can rise each year), and the expected payoff or expiration year for bond-related charges.
  3. Review the seller's required disclosures, including the Notice of Special Tax and any recorded Notice of Special Tax Lien.
  4. Ask whether the charge is bond-repayment (finite term) or a services special tax (potentially ongoing).

Confirm the exact special-tax line on the parcel's tax bill or with the CFD administrator before you rely on any figure.

Budgeting for Mello-Roos as a buyer

Lenders count Mello-Roos as part of your total tax burden when they qualify you, so it directly affects how much home you can finance and your monthly PITI (principal, interest, taxes, insurance).

  • Add the verified special tax to your ~1% base tax and any other direct assessments when estimating monthly cost.
  • Ask whether bond-related charges are scheduled to roll off, and in what year.
  • Factor the annual escalator into long-term budgeting.
  • Remember Mello-Roos is generally not tied to assessed value the way Prop 13 base tax is.

Mello-Roos and resale

Mello-Roos is a required seller disclosure in California. Buyers will see it, lenders will count it, and it can affect both affordability and buyer pool. If you are selling, disclose the current special tax accurately and point buyers to the CFD administrator for verification.

Get tract-specific help

Brian Cooper works across every SCV master-planned community. For any address, we will pull the LA County parcel, read the special-assessment lines, and help you understand the true carrying cost. Contact Brian or call (805) 723-2498.

Frequently Asked Questions

Is Mello-Roos the same as property tax?

No. Your base property tax is the ~1% Prop 13 ad valorem rate on assessed value. Mello-Roos is a separate special tax levied by a Community Facilities District and shown as its own line on the Los Angeles County tax bill. It is generally set by a formula, not by your home's value. This is general information, not tax advice.

How much is Mello-Roos in this area?

It varies by tract, by phase, and sometimes lot-by-lot — and SCV special taxes tend to run materially higher than much of the neighboring Ventura-area market. We do not quote a fixed dollar figure here. Confirm the exact special-tax line on the parcel's own LA County tax bill or with the CFD administrator.

Does Mello-Roos ever go away?

Bond-repayment special taxes are usually levied for a fixed term (commonly 20–40 years) and the bond-related portion can roll off when the bonds are retired. Services-based special taxes can be ongoing. Confirm the term for the specific district.

Can Mello-Roos increase each year?

Many districts include an annual escalator capped by the formation documents. The cap and method vary by CFD, so confirm the escalator for the specific district with the administrator.

Is Mello-Roos tax-deductible?

Whether any portion is deductible depends on your facts and current IRS rules; special assessments for local benefits often are not deductible. This is general information, not tax advice — confirm with a CPA.

Who do I call to verify the amount?

The CFD administrator listed on the parcel's Los Angeles County property-tax bill. They can confirm the current annual amount, the escalator, and the expected payoff year for bond charges.

Primary sourcesCA Gov. Code (Mello-Roos Act), Los Angeles County Assessor, LA County Treasurer & Tax Collector. General information only — verify current figures and confirm legal, tax, or financial questions with a licensed professional.

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