Somewhere in the stack of documents a San Diego County buyer signs during escrow sits a form called the Notice of Special Tax. It is required under California Civil Code Section 1102.6 whenever a property sits inside a Community Facilities District, better known by its older name, Mello-Roos. The form spells out an annual dollar figure, describes it as fixed, and asks for a signature. Most buyers sign it the way they sign the lead paint disclosure: quickly, and without much thought about what "fixed" is doing in that sentence.
In Encinitas Ranch, that word got tested. The neighborhood's Community Facilities District, known as CFD #1, was formed in 1995 to bond out the streets, sewer lines, and drainage that built the community, and a 2021 community association update put its footprint at roughly 934 homes. Part of the repayment plan counted on revenue from the Encinitas Ranch Golf Course, run through a joint powers authority called ERGA. In 2011, the Encinitas City Council voted to let ERGA set aside a $100,000-a-year contingency fund before it finished paying its share of the bond debt, and local coverage in the Coast News reported that homeowners in the district would end up covering more of that shortfall themselves. The tax on their bill was never voted on twice by the residents who pay it, and yet the amount they owed still moved.
That is the piece missing from most explanations of Mello-Roos: the tax is contractually capped, but the path to that cap runs through decisions made by city councils, joint powers authorities, and golf course boards years after a buyer has already closed. A number that reads as settled on a listing sheet can still shift because of who else was supposed to be paying into the same bond and didn't.
Why Del Mar Mostly Skipped This
Mello-Roos exists because of a mechanism buyers rarely connect to their own tax bill: Proposition 13. Prop 13 caps the growth of a home's assessed value at 2 percent a year, which is great for long-term owners but left California cities short on a traditional way to fund the roads, schools, and utilities that new subdivisions need. The Mello-Roos Community Facilities Act of 1982 filled that gap by letting cities form Community Facilities Districts, sell bonds against future development, and repay them with a special tax charged only to the homes inside that district.
The practical result is a housing stock split by age. Del Mar's homes are largely older and already built out, so the city has no real reason to have formed a CFD to fund infrastructure that already exists. Newer planned communities built on raw land during the 1980s through the 2000s tell a different story: Encinitas Ranch, Carmel Valley, 4S Ranch, and pockets of Carlsbad and San Marcos all financed their initial infrastructure this way, and the county's active district list for fiscal year 2025-26 shows dozens of these CFDs still collecting payments across North County.
None of this shows up in a listing's headline price. A buyer comparing a home in Del Mar to one in a newer planned community is often comparing a base property tax bill to a base property tax bill plus a second, separate line that isn't capped the same way and doesn't shrink as a percentage of value when the market rises.
The Data That Lines Up With the Tax Map
Rolling three-month year-over-year figures published in early September 2026 show a county where the median headline hides sharply different stories by town. Del Mar's median sale price rose by roughly 26.7 percent year over year. Cardiff by the Sea rose about 17.2 percent. Solana Beach was up close to 14.7 percent. Carlsbad and Escondido came in essentially flat over the same window, while Vista, San Marcos, and La Jolla actually softened.
The towns pulling ahead are, with only partial overlap, the ones with the oldest, most built-out housing stock and the least Mello-Roos exposure. The towns treading water or softening include the newer planned communities most likely to carry a CFD special tax on top of the base bill. That pattern does not prove that Mello-Roos alone is holding prices flat in one town while their absence lifts prices in another. Scarcity, lot size, and school boundaries all play a role too. But a buyer weighing two towns at similar list prices should at least ask whether part of what they're seeing is a market quietly pricing in a second tax bill that a portal search never surfaces.
| Town | Typical housing era | Mello-Roos exposure | Sept 2026 rolling YoY price change |
|---|---|---|---|
| Del Mar | Largely built out, older stock | Rare | up about 26.7% |
| Cardiff by the Sea | Mostly older, varies by subdivision | Occasional, subdivision-dependent | up about 17.2% |
| Solana Beach | Older, built out | Rare | up about 14.7% |
| Encinitas Ranch (within Encinitas) | Planned community, built mid-1990s | CFD #1, active | not broken out in this data |
| Carlsbad | Mixed, older core plus newer planned pockets | Present in newer developments | essentially flat |
| San Marcos | Newer, master-planned | Common, multiple active CFDs | softer year over year |
What to Actually Check Before You Write an Offer
None of this means a home in a Mello-Roos district is a bad buy. Many of these taxes fund the exact schools, parks, and fire stations that make a newer community livable, and the special tax typically ends once the underlying bonds are retired, usually 20 to 40 years from formation. It means the number deserves the same scrutiny a buyer already gives to the purchase price.
- Pull the parcel's actual current tax bill from the San Diego County Treasurer-Tax Collector rather than relying on a listing description or an agent's estimate.
- Ask for the CFD's official statement or formation documents, which show the remaining bond term and whether the tax includes an annual escalation, commonly around 2 percent, though the exact formula varies by district.
- Request the Notice of Special Tax the seller is required to provide under Civil Code 1102.6, and read past the word "fixed" to the actual formula behind it.
- Tell your lender the exact annual Mello-Roos figure early. It gets folded into your housing expense ratio for debt-to-income purposes, and a high enough special tax can change the loan amount you qualify for.
- If the district funds a shared amenity, such as a golf course or clubhouse, ask how that amenity's revenue is supposed to offset the homeowners' share and what happens if it falls short.
The county's assessor maintains a public list of active Mello-Roos districts by fiscal year, and the City of Encinitas publishes background on CFD #1 directly, including its formation history and the parties responsible for repayment. Both are worth five minutes before you fall in love with a listing.
A Few Questions Buyers Ask
Does every newer San Diego County community have Mello-Roos? No. Coverage varies by city and even by phase within a development. The county's active district list is the only reliable way to confirm a specific parcel, since MLS fields and listing remarks are not always consistent.
Can Mello-Roos affect my ability to deduct property taxes? Generally, no. Because the special tax isn't based on the home's assessed value, it typically doesn't qualify as a deductible ad valorem tax the way your base 1 percent rate does. Confirm treatment with a tax professional for your specific situation.
Does an older, Mello-Roos-free home always cost less overall? Not necessarily. Older built-out towns often carry higher purchase prices to begin with, which is part of what the September 2026 data above is showing. The comparison worth running is total monthly housing cost, not just the tax line.
The listing price was never the whole story in San Diego County. Between Prop 13's growth cap, the CFDs it indirectly created, and a market that seems to already be pricing in the difference, the towns look less alike than the median suggests. If you are comparing homes across Del Mar, Cardiff, Encinitas, Carlsbad, or elsewhere in the county and want the actual tax bill pulled before you write an offer, Renee Burnette is glad to help. Let's Connect.
