On April 20, 2026, the San Leandro City Council handed local property owners a rare commodity: time. They voted to push the mandatory rental unit registry deadline back six months, from July 31, 2026, to January 31, 2027. City staff requested the delay to coordinate outreach and align the rollout with annual business license renewals.
You might be tempted to exhale, file away your RSO compliance checklist, and forget about the city’s new Rent Stabilization Ordinance (Chapter 4-46) until after the holidays.
Don’t do it. That 6-month reprieve is an operational trap.
The July 2025 Base Rent Anchor
While the city delayed the administrative paperwork, they did not alter the financial anchor of the ordinance. The “Base Rent” for your property is permanently locked to whatever rate was in effect on July 1, 2025.
Starting January 1, 2027, all allowable rent increases under the new RSO—which caps hikes at the lower of 3% or 65% of the Consumer Price Index (CPI)—will be strictly calculated against that specific July 2025 ledger.
If your 2025 bookkeeping is messy, missing, or undocumented when the city’s new registration portal finally opens this winter, your baseline revenue is fundamentally compromised.
“No Registration, No Rent Increase”
San Leandro isn’t just asking for voluntary compliance; they are utilizing a proprietary, third-party data platform called Tolemi to enforce the new Rental Registry (Chapter 4-45). Under the new RSO framework, the rule is absolute: No Registration, No Rent Increase.
If you fail to accurately upload your property data, verify your July 2025 base rents, and pay the annual per-unit program fees by the new January 31, 2027 deadline, you completely lose the legal right to raise rent or process Just Cause evictions for that year.
Warning The Financial Risk:
You are permitted to pass through 50% of the program fee to your tenants, but only if you follow rigorous noticing procedures and list it as a separate, distinct line item. You cannot legally fold it into the base rent, and the ordinance places strict limits on unbundling utilities or other charges already included in the rent.
The Pragmatic Pivot: What You Need to Do Right Now
Smart Bay Area landlords are using this operational breathing room to build their defense architecture, not take a vacation. Here is the immediate action plan:
- Audit the July 2025 Ledgers: Immediately isolate and secure your rent rolls from the summer of 2025. Any missing or unverified data when the Tolemi portal launches will result in rejected registrations and frozen revenue.
- Prepare for the Tolemi Integration: Do not wait until January 2027 to format your portfolio’s data. Begin organizing tenant contact details, lease dates, and utility structures now so you can execute a rapid, error-free upload this winter.
- Understand the Math: Recognize that despite the delayed registry, the RSO limit effectively strangles your margins. Because the cap restricts you to 65% of the CPI, you are likely looking at allowable increases of merely 1.5% to 2%. Every single dollar of your July 2025 base rent must be accurately captured to maximize your returns under this strict ceiling.
San Leandro gave you a six-month extension to get your data in order. Don’t waste it. The compliance deadline moved, but the financial risk hasn’t gone anywhere.
