Coronado ADU Rentals: The Six-Month Minimum Drops to 30 Days

Updated Nov 4, 2026 · Mike Corrales

As of November 4, 2026: Coronado is replacing its six-month minimum rental term for ADUs and junior ADUs with a 30-day minimum. City Ordinance 2026-08 was adopted October 6, 2026 and takes effect November 5, 2026 (Coronado Municipal Code). State law also requires many ADU and JADU rentals to run longer than 30 days, so a lease of at least 31 days is the safe floor. Nightly vacation rentals of an ADU are still not allowed.

The short answer

Yes. Starting November 5, 2026, you can rent a permitted Coronado ADU for less than six months. Nightly and weekly stays remain off the table. Plan on leases of 31 days or more, and confirm the adopted wording with the City before you sign one.

What changed

Coronado’s ADU rules are in Municipal Code § 86.56.105. Until the amendment takes effect, the code reads: “Junior and accessory dwelling units shall only be used for rentals of terms of six consecutive months or more.” The covenant recorded for a junior ADU must also prohibit “renting the junior accessory dwelling unit for fewer than six consecutive months” (CMC § 86.56.105).

In a December 10, 2025 review letter, the California Department of Housing and Community Development (HCD) found that the six-month term didn’t comply with state ADU law. HCD wrote that state law “does not permit local agencies to impose a minimum rental term longer than 30 days,” and that the City “must amend the Ordinance to reflect a property owner’s discretion to rent an ADU or JADU with only the restriction of a 30-day minimum rental term” (HCD findings letter).

The City Council introduced the amendment on September 1, 2026. Coronado’s local paper reported that it shifts “the minimum rental term from six months to 30 days” (Coronado Eagle & Journal). The ordinance amends subsections A, B, C and E of § 86.56.105.

Why 31 days is the safe floor

State law is worded two ways. For ADUs built under Government Code § 66323 and for every junior ADU, the City must require a rental “for a term longer than 30 days.” For other ADUs, a city may require “rentals of terms 30 days or longer.” HCD quotes both in its letter. A lease of 31 days or more satisfies both versions and the City’s new rule in one move.

What hasn’t changed

• No short-term rentals in residential zones. Coronado bans transient rentals in residential zones, meaning stays of 25 consecutive days or less (CMC § 86.78.060, § 86.78.020). That covers nightly and weekly stays on Airbnb and Vrbo.
• No separate sale. An ADU can’t be sold apart from the main home. News coverage says the amendment adds an exception only for qualified nonprofit corporations.
• Recorded covenant. The code requires a covenant, recorded before the building permit is issued, that lists the minimum rental period. Covenants recorded under the old rule may still say six months (see the questions for the City below).

Step by step: renting your ADU for less than six months

1. Confirm the unit is permitted. The new term applies to legal ADUs and junior ADUs. Find your building permit and final inspection.
2. Pull your recorded covenant. Find the covenant recorded with the San Diego County Recorder for your ADU or JADU and check what minimum rental period it lists.
3. Ask the City how the change applies to you. Contact Coronado Community Development and ask whether your covenant needs updating and whether the new term applies to your unit type.
4. Check junior ADU owner occupancy. The current code requires a JADU’s owner to live on the lot. HCD’s letter says state law now allows that requirement only when the JADU shares a bathroom with the main home. Confirm which rule applies to you.
5. Write leases of 31 days or more. Use a written lease with a clear start and end date. A shorter stay can break both state law and the City’s transient-rental ban.
6. Review HOA rules, insurance and taxes. HOA rules can be stricter than City code. Tell your insurer the unit is a rental, and ask your tax advisor how rental income and any occupancy taxes apply.

Verify with the City

We couldn’t read the full adopted text of Ordinance 2026-08 when we wrote this. The 30-day figure comes from HCD’s findings and local news coverage of the Council meeting. Before you sign a lease shorter than six months, confirm the final wording of CMC § 86.56.105 with the Coronado City Clerk or Community Development Department. We’ll update this page once the amended section is published.

What it means for owners

A 30-day minimum opens Coronado ADUs to month-to-month and seasonal tenants, such as traveling medical staff, military families between moves, and visiting academics, who didn’t fit a six-month lease. Rents and turnover costs vary from home to home, so an estimate built on your address beats any citywide average.

Get your free income report for an estimate based on your home, or book a call with Allura. You can also reach us at (858) 244-9400.

FAQ

Can I rent my ADU in Coronado for less than six months?

Yes, starting November 5, 2026. Ordinance 2026-08 replaces the six-month minimum with a 30-day minimum. State law also requires many ADU and junior ADU rentals to be longer than 30 days, so plan on leases of 31 days or more.

When does Coronado’s new ADU rental rule take effect?

Ordinance 2026-08 was adopted October 6, 2026 and takes effect November 5, 2026.

Can I list my Coronado ADU on Airbnb or Vrbo for nightly stays?

No. Coronado bans rentals of 25 consecutive days or less in residential zones, and state law requires many ADU rentals to run longer than 30 days. Monthly stays of 31 days or more are the option.

Does the new rule apply to junior ADUs?

The amendment covers both ADUs and junior ADUs, according to news coverage of the Council meeting. State law requires junior ADU rentals to be for a term longer than 30 days. Confirm your recorded covenant with the City.

Do I have to live on the property to rent my ADU?

For a standard ADU, HCD says state law doesn’t allow an owner-occupancy requirement. For a junior ADU, the current Coronado code requires the owner to live on the lot. HCD says state law now allows that only when the junior ADU shares a bathroom with the main home. Confirm with the City.

Cover photo: KMPhotoLA1 / Wikimedia Commons, CC BY-SA 4.0, resized.