Say two listings land at the same asking price this month. One is a 1920s bungalow near Bay Station, freshly painted, original fir floors, a little bit of settling in the foundation. The other is a new three-bedroom townhome at Alta Star Harbor, the development rising on the old Del Monte Warehouse site along Buena Vista Avenue. Same price. Same square footage, roughly. A buyer comparing the two on paper would call it a coin flip.
It isn't. The new-construction home carries a recurring cost the bungalow never will, and it won't show up until the preliminary title report lands or the builder hands over the public report. It's called a Mello-Roos tax, and it's the real difference between what these two West End homes cost on the sign and what they cost every year you own them.
What's Actually Being Built on This Side of the Island
The West End's new-construction wave has a name, several names actually. Alta Star Harbor is the housing and commercial project now rising where the Del Monte Warehouse used to sit, developed by Wood Partners. A few blocks over, Alameda's Planning Board approved the Del Monte Towns townhomes as part of the same stretch of redevelopment. Site A, the Boatworks project, and the Encinal Terminals development are all in various stages of building out the land that used to belong to the Alameda Naval Air Station and its surrounding industrial waterfront. The Clement Avenue extension, which now runs behind the Del Monte site to connect Atlantic Avenue to Sherman Street, was built specifically to serve this new housing.
None of this existed as residential inventory a generation ago. It's raw land turned into subdivisions, and raw land turned into subdivisions is exactly the situation that creates a Mello-Roos district.
The Tax That Comes With the New Address
A Mello-Roos tax, formally a Community Facilities District special tax, is how California cities pay for the streets, sewer lines, parks, and other infrastructure that a brand-new development needs before anyone can move in. Proposition 13 capped how much property tax revenue local governments could collect from existing homes, so when a city wants a new subdivision to pay for its own roads and pipes, it forms a CFD, sells bonds against future tax revenue, and bills each new homeowner a special tax on top of their regular bill until those bonds are paid off.
Alameda Point Info, the volunteer-run site that has tracked the base conversion for years, lists Mello-Roos as one of the standing financial terms tied to the development. That's not a coincidence. Converting a former naval air station into a residential neighborhood means building infrastructure from nothing, and CFDs are the standard tool for financing that kind of build.
A resale bungalow near Bay Station was built on infrastructure the city paid for decades ago. A new townhome at Alta Star Harbor or Del Monte Towns is very likely paying for its own.
Why Prop 13 Doesn't Rescue You Here
The instinct for anyone who has owned California property for a while is to assume Prop 13 protects them. It does, for the base 1 percent property tax rate. It does nothing for a Mello-Roos special tax, because that tax isn't calculated on the value of the home. It's a flat or formula-based charge tied to square footage, lot size, or unit type, spelled out in a document called the Rate and Method of Apportionment when the district was formed. Because it isn't tied to value, it sits outside the 1 percent cap entirely.
These special taxes commonly allow for an annual escalation, often up to 2 percent a year, built into the same formula. They run until the bonds are retired, typically somewhere between 20 and 40 years, and they transfer automatically to the next buyer when the home sells. A new owner doesn't inherit a lower rate. They inherit the same schedule the first owner signed up for.
A Mello-Roos payment behaves nothing like the property tax bill it sits next to. It doesn't rise and fall with your home's value. It rises on its own clock, on its own schedule, regardless of what the market does.
What This Actually Runs Elsewhere in the Bay Area
Nobody should guess at what a specific Alameda Point parcel owes. The rate is set district by district, phase by phase, and the only number that matters is the one printed on that property's own tax bill or public report. But comparable Bay Area CFDs give a useful sense of scale. For fiscal year 2024-25, Dublin Crossing's facilities district charged single-family homeowners somewhere between roughly $3,900 and $5,800 a year depending on home size, with a second services district adding more on top. As of 2026, newer tracts in Irvine and parts of the South Bay commonly run $1,500 to $5,000 a year, with some larger homes clearing $7,000. None of these are Alameda numbers. They're the range a buyer should expect to be in the neighborhood of, not the number to write into a budget.
Layer in the reality that many of these new communities also carry a homeowners association fee for shared landscaping, common areas, or amenities, a separate monthly cost stacked on top of the CFD charge, and the gap between the new townhome's sticker price and its true carrying cost starts to look meaningful.
How the Number Hides on a Resale Listing
Here's where the friction actually catches buyers. When a builder sells a new home for the first time, California requires a public report that discloses the CFD and its estimated cost. That's the moment the information is easiest to get. Once that same home changes hands as a resale a few years later, no new public report is required. The listing agent has to go dig for it, and if they don't, the buyer may not learn the number until the preliminary title report shows up mid-escrow, usually as a line labeled "CFD" or the name of the specific district.
This matters just as much for a buyer looking at a five-year-old townhome in one of these developments as it does for someone buying brand new from the builder. The tax doesn't expire when the first owner sells. It's attached to the parcel, not the person, and it rides along to every buyer after that until the bonds are paid.
Lenders also fold the Mello-Roos payment into a buyer's housing expense ratio and debt-to-income calculation right alongside the HOA dues, which means it can affect how much house someone qualifies for, not just what they pay once they own it.
What to Ask Before Writing an Offer
Anyone looking at new construction in the West End, whether it's a unit at Alta Star Harbor, a Del Monte Towns townhome, or something coming out of Site A, Boatworks, or Encinal Terminals, should ask for these specifics before getting attached to a number:
- The exact annual CFD or special tax amount for that parcel, not a neighborhood average
- The escalation rate written into the district's formula, and whether it compounds annually
- The year the bonds are scheduled to be retired, so you know roughly how long the charge lasts
- Whether a separate HOA fee applies on top of the CFD, and what it covers
- For a resale in one of these developments, a copy of the current property tax bill showing the special assessment line, not just the listing sheet
A prelim title report or a call to the Alameda County Treasurer-Tax Collector's office will confirm the exact figure for any specific address. That's the only number worth budgeting around.
What This Means for the West End's Two Housing Markets
The West End has effectively split into two housing products: the pre-war stock built when the city itself paid for infrastructure, and the new construction built on land where homeowners are financing their own streets and sewer lines through a special tax. Comparing them on price per square foot alone misses the part of the math that shows up on the tax bill every year, not the closing statement. A buyer who understands that difference walks into a purchase with a real number instead of a surprise.
If you're weighing a resale bungalow against something new at Alameda Point, the right comparison isn't the asking price. It's the asking price plus whatever that parcel's tax bill actually says, and that number is worth pulling before you fall in love with either house.
FAQ
Does the Mello-Roos tax on an Alameda Point home ever go away? Yes, once the bonds that funded the district's infrastructure are paid off, typically 20 to 40 years from formation. Until then, it renews annually and transfers to each new owner.
Is a Mello-Roos special tax deductible the way property tax is? Generally no, because it isn't based on the assessed value of the property. Deductibility depends on the specific structure of the charge, and this is a question for a tax professional, not a general rule.
Does every new West End development carry the same CFD rate? No. Each district sets its own rate and formula when it's formed, and rates vary by phase, lot size, and unit type even within the same development. The only reliable number is the one on that specific parcel's tax bill.
Buying or selling in the West End means knowing which version of this market you're actually in. If you want a straight answer on what a specific address carries before you write an offer, or you're weighing a resale bungalow against something new at Alameda Point, the Andrea Ruport Team can walk through the real numbers with you. Let's Make It Happen.