How to Budget for Water, Sewer and Trash When You Buy a Home in San Diego County: The New 2027 Water Rate, the Winter Sewer Clock, and the Trash Fee on Your Tax Bill (November 2026)

On October 27, the San Diego City Council voted 6-2 to scrap the City's tiered water rates. Starting January 1, 2027, every City of San Diego water customer will pay one rate per unit of water. The vote followed a court ruling that the old tiers broke Proposition 218, and the change comes on top of the already planned increase for January. Meanwhile, 2026-27 property tax bills are out, with December 10 as the last day to pay the first installment without a penalty. For homes on City trash service, those bills also carry the trash fee.

Buyers usually focus on the mortgage, property taxes, and insurance. But water, sewer, and trash are now a real part of what it costs to own a home in San Diego. One of them, the trash fee, sits on the property tax bill your lender may impound. Another, the sewer charge, is set by how much water you use in the winter. That clock starts every November.

Here is how to budget for all three, step by step, with the City's published rates and clearly labeled illustrations. If your home is in another city or water district in the county, the steps are the same. Only the rate sheet changes.

What's in the news

• One water rate, starting January 1. The Council approved a resolution switching the City from tiered single-family rates to "a unitary volumetric rate for all customer classes," effective January 1, 2027. Published local coverage reported the 6-2 vote. Single-family customers had been scheduled to pay $9.75, $10.88 or $13.62 per hundred cubic feet (HCF) in 2027, depending on usage. Now everyone pays $11.09 per HCF, plus a fixed monthly charge based on meter size: $40.97 for a standard 5/8- or 3/4-inch meter. The resolution says the new rates collect the same total revenue as the increase of up to 14.5% already scheduled for January 1, 2027. In other words, the overall increase stays the same, but some customers will pay more of it and others less.
• Why it changed. In Patz v. City of San Diego (2025), the court found the tiered structure did not comply with Proposition 218. The City approved a settlement on August 25, 2026 that includes about $40 million paid to the plaintiff class and requires the new rate structure. City staff told the Council that a low-use single-family customer would pay about $5.62 more a month and a high-use customer about $19.52 less, according to records of the October 27 meeting. The City notes the ruling affects water agencies across the state.
• Water and sewer already rose this year. On January 1, 2026, City water rates rose 14.7% and wastewater rates rose 6%. The City buys 85% to 90% of its drinking water from the San Diego County Water Authority and names wholesale water costs as the main reason for the increases.
• Trash fee on the tax bill. For homes on City trash service, the "SD Solid Waste Mgmt Fee" is collected on the annual County property tax bill. For fiscal 2026-27, the standard 95-gallon bundle is $44.57 a month. In June the Council approved lower fees starting July 1, 2027: $38.75 for the 95-gallon bundle. There are no refunds for the current year.
• Tax season. On October 28, Treasurer-Tax Collector Larry Cohen said the County had issued 1,022,131 secured tax bills totaling more than $10.28 billion. The first installment was due November 1, and December 10 is the last day to pay without a 10% penalty. Paying online by e-check is free.
• Rain this week. Storms moved through the county on Friday, November 13, with more showers expected into Saturday and another round possible Monday into Tuesday, according to published local coverage and a public weather forecast. The County issued a general rain advisory for beaches and bays. For homeowners, rainy weeks are the easiest time to shut off sprinklers. As you'll see below, that matters for your sewer bill.

San Diego County snapshot, October 2026

Source: public housing-market data, county core metrics, October 2026. The price-cut share is the published share of listings with a price cut.

Mortgage rates: The national average 30-year rate was 7.11% on November 12, the fourth weekly decline in a row (7.18% the week before, 6.24% a year ago). The 15-year average was 6.45%.

Other context: San Diego County's median household income is $106,268, about $8,856 a month. Official figures put median "selected monthly owner costs" at $3,184 for owners with a mortgage and $871 for owners without one. Those figures include utilities as well as the mortgage, taxes and insurance, and most of those owners bought years ago at lower prices and rates. A buyer today starts from a much higher base.

What this means for buyers: one listing in five has had a price cut, and pending sales are down 15.2% from a year ago. You have room to ask questions, request records, and negotiate repairs and credits. Use that room to learn what a home really costs to run before you commit.

How City of San Diego water, sewer and trash bills work

Water has two parts: a fixed monthly service charge based on meter size, and a charge for each HCF you use. One HCF is 748 gallons. The City bills most single-family homes every two months, so each bill covers two months of service.

Sewer (wastewater) for a single-family home is a flat, individual charge set once a year from your winter water use. Every winter, mainly November through April, the City tracks your water use over two billing cycles and uses the cycle with the lower total. The new rate takes effect with the bill that includes July 1 and lasts a year. If you are new to a home, the City bills you at the citywide average until it can take a winter reading for you.

Trash for homes on City service is a monthly fee charged once a year on the property tax bill. For a single-family home it is usually part of the tax line your lender impounds.

Annual amounts are the monthly fee times 12. The City set the fiscal 2025-26 fee at $523.20 for the 95-gallon bundle, paid in two installments with the property taxes.

Step 1: Find out who serves the home before you write an offer

How to do it:

1. Ask the listing agent, or check a recent utility bill, to learn who provides water and sewer. Inside the City of San Diego it's the Public Utilities Department. In much of the county it's another city or a water district with its own rates.
2. Pull the seller's current property tax bill (search by parcel number on the County Treasurer-Tax Collector's website). Look at the direct charges for "SD Solid Waste Mgmt Fee." If it's there, the home is on City trash service and the fee becomes yours.
3. If there's no trash line, ask how trash is handled. It may be a private hauler billed separately or covered by HOA dues. Either way, put it in your budget.
4. Note the water meter size. A 1-inch meter costs $65.43 a month in fixed charges in 2027, compared with $40.97 for a 3/4-inch meter. Larger homes and homes with fire sprinklers sometimes have the bigger meter.

Step 2: Ask for a year of water bills and read the usage

Water use depends on the house, the yard, and the household. The seller's history is the best starting point, but your household may use more or less.

How to do it:

1. Ask for the last six bills (12 months). Sellers on City water may be able to pull them from their MyWaterSD online account.
2. Write down the HCF used on each bill. Summer bills show irrigation, and winter bills show indoor use.
3. Divide by two to get monthly use. For comparison, the City bases its "New Customer Fee" on average single-family use of 9 HCF a month.
4. Adjust for your household. The county averages 2.72 people per household. A couple moving into a five-bedroom home that housed a family of six may use less. A family moving into a home a retiree owned may use more.

Step 3: Run your 2027 water bill

Formula (City of San Diego, 3/4" meter, per two-month bill): 2 x $40.97 + (HCF used x $11.09)

Illustrations, based on the City's published rates (water charges only, before sewer and any taxes or fees on the bill):

What the table shows: everyone pays more in 2027 than in 2026. Compared with the tiers that had been planned, light and average users pay a little more and heavy users pay less. At the City average, water alone goes from about $116 a month to about $141 a month. Smaller households in condos or compact homes, the buyers who use the least water, absorb more of the change.

Step 4: Plan for the "new customer" sewer charge and the winter clock

This is the part most buyers miss. When you open a new account, the City bills your sewer at the citywide average until it has a winter reading for you. Your winter use then sets your sewer rate for the following July-to-June year.

How to do it:

1. When you start service, call Public Utilities at 619-515-3500 and ask which two billing cycles are your winter monitoring period, and whether your move-in date allows a reading this winter. The City gives exact dates by phone.
2. Budget the New Customer Fee until then: $129.12 per two-month bill at 2026 rates (about $64.56 a month), and about $136.78 under the 2027 schedule (our illustration).
3. During your monitoring window, keep outdoor watering to a minimum. On a rainy week like this one, turn the irrigation controller off. Most outdoor water never reaches the sewer, but winter use is what sets your rate.
4. Fix running toilets and dripping fixtures before winter. Illustration: each 1 HCF a month you cut from winter use lowers your sewer charge by up to $11.84 per two-month bill at 2026 rates (2 x $5.92), or about $71 a year. Under the 2027 schedule it's up to $12.54 per bill, about $75 a year. The exact formula on your bill may differ slightly, so check your sewer line after July.
5. Remember the cap: single-family sewer tops out at 20 HCF a month ($259.36 per two-month bill at 2026 rates).

Step 5: Look for leaks during your inspection period

A hidden leak raises both your water bill and, if it runs through the winter, your sewer rate for a full year.

How to do it:

1. During the inspection, turn off every fixture and watch the meter's leak indicator for several minutes. If it moves, something is leaking: often a toilet flapper, an irrigation valve, or a slab line.
2. Ask your inspector to check irrigation valves and the pressure regulator, and ask the seller whether there have been any leak repairs or leak adjustments.
3. If you find a leak, ask the seller to repair it before closing or give you a credit. With 20.5% of county listings showing a price cut and a median of 48 days on market, specific, documented repair requests are reasonable.
4. After you move in, the City offers water surveys and leak adjustment requests through its customer support pages.

Step 6: Put the trash fee in your tax and impound budget

The trash fee rides on the property tax bill, so it follows the same rules as your taxes.

How to do it:

1. When your lender estimates monthly taxes, make sure the figure includes the direct charges on the bill, trash fee included, not just 1% of the price. On a City-serviced home with the 95-gallon bundle, that's $534.84 for 2026-27, about $44.57 a month.
2. Ask escrow how the current bill's direct charges, including the trash fee, are being prorated between you and the seller, and confirm who is paying the installment due December 10 if you close before then.
3. Budget for the drop on the 2027-28 bill. For the 95-gallon bundle, the fee falls to $38.75 a month ($465 a year) starting July 1, 2027. Your lender's escrow analysis should eventually pick that up.
4. Pick the right bin size. Moving from the 95-gallon to the 35-gallon bundle saves $10.91 a month this year ($130.92 a year). The City says the lower fee takes effect when the new container is delivered. You can review your service level on the City's waste-service portal.
5. If your income is limited, check the City's trash-fee assistance program. It's open to homeowners whose primary residence has City trash service. Applications for fiscal 2026-27 help are due April 30, 2027.

Step 7: Add it all up: the full monthly cost

Illustration, City of San Diego single-family home, 3/4" meter, City-average water use, 95-gallon trash bundle:

*After your first winter reading, your sewer charge resets to your own use, which could be higher or lower.

Now add the house. Illustration: county median list price of $889,000, 20% down ($177,800), $711,200 30-year loan at 7.11%:

That's about 67% of the county's median monthly household income, before any other debts. That is why most buyers at this price have incomes well above the median, put more down, or buy below the median. With 10% down, the $800,100 loan's principal and interest alone would be about $5,382 before mortgage insurance. Compared with last year's 6.24% average rate, today's 7.11% adds about $410 a month in principal and interest on the $711,200 loan.

Lenders don't count water or sewer in your debt-to-income ratio, but you still have to pay them. Budget for them in your own plan, along with the local electric and gas utility, which we covered in a recent article.

Step 8: Use the numbers when you negotiate

How to negotiate:

1. Ask for records early: 12 months of water bills, the current tax bill with all direct charges, and any HOA documents that show what dues cover (water, sewer and trash are sometimes included in condo dues).
2. Turn findings into specific requests: a leak repair, an irrigation controller replacement, or a broken backflow device fixed, each backed by a bid.
3. When a credit makes more sense than a repair, keep it within your loan program's limits and tie it to actual closing costs. Your lender has to approve it.
4. Compare homes by full monthly cost, utilities included. A home with a big lawn and a 1-inch meter can cost noticeably more to run each month than a similar-priced home with a small, drought-tolerant yard.

Your water, sewer and trash checklist

• Water, sewer and trash providers confirmed for the address
• "SD Solid Waste Mgmt Fee" (or other trash arrangement) found on the tax bill
• Meter size noted
• 12 months of water bills reviewed; monthly HCF figured
• 2027 water bill estimated at $11.09 per HCF plus the meter charge
• New Customer sewer fee budgeted until your first winter reading
• Winter monitoring dates confirmed with Public Utilities (619-515-3500)
• Irrigation off during rain and in your monitoring window; leaks fixed
• Leak check done during inspection; repair or credit requested if needed
• Lender's tax estimate includes direct charges; escrow proration confirmed
• December 10 installment handled by you or escrow
• Trash bin size chosen to fit your household

What this means day to day

For a San Diego buyer, the cost of a home doesn't end with the mortgage, taxes and insurance. In the City of San Diego, water goes to a single $11.09 rate on January 1, so smaller households pay a bit more than planned. Your sewer charge depends on how much water you use this winter, and the trash fee comes with your property tax bill. If you buy now, you'll probably pay the average sewer rate until the City reads your winter use, so learn your monitoring dates, turn off the sprinklers when it rains, and fix leaks before they set your rate for a year. If you're outside the City, ask the same questions of your own water district and city. With more listings, fewer homes in contract, and price cuts on one listing in five, buyers have time to ask for the records and use them in negotiations.

If you're buying or selling in San Diego County, Choice of America can help you read the tax bill and utility records, estimate your real monthly cost, and negotiate repairs or credits before you commit. Call or text 833-THIS-BROKER (833-842-7465), or visit choiceofamerica.com and our San Diego County real estate page.

Choice of America | DRE #02004794 | Company DRE #02240008

This article is general information, not legal, tax, or lending advice. Bill and payment figures are illustrations based on the stated assumptions and the City of San Diego's published rates. The 2027 sewer figures use the schedule in the City's 2025 rate notice. Your usage, meter size, provider, insurance, tax rate, and loan terms will differ. Confirm figures with your water provider, the City of San Diego, the County Treasurer-Tax Collector, your escrow officer, and your lender.

Sources: public housing-market data, official household and income figures, national mortgage-rate surveys, City of San Diego rate schedules and council actions, county tax-bill notices, and published local news coverage, as of November 2026.