Before Your First ADU Tenant Moves In: The Operational Checklist California Landlords Need

Getting your ADU rent-ready isn't just about paint and furniture. Here's what actually needs to be in place before day one.

You've done the hard work — permitted, built, maybe renovated. The ADU is ready. Now you have a tenant lined up and a move-in date on the calendar.

This is the moment a lot of first-time ADU landlords realize they haven't thought through the operational side. Not the unit itself, but the landlord infrastructure around it: the documentation, the legal requirements, the systems that protect you if something goes wrong six months from now.

Here's the checklist we run through with every new ADU owner before a tenant takes possession.

1. Confirm the Unit Meets California Habitability Standards

Before anything else, the unit has to be legally habitable. California Civil Code section 1941 defines what that means for every rental, including ADUs:

• Effective waterproofing and weather protection on the roof and walls
• Functional plumbing and hot water connected to a sewage disposal system
• Adequate heating (capable of maintaining at least 70°F at 3 feet above the floor)
• Electrical wiring and lighting in working condition
• Clean and sanitary grounds, buildings and appurtenances
• Operable deadbolt locks on all exterior doors
• Window locks on all windows accessible from the ground floor
• Smoke detectors in each sleeping area and carbon monoxide detectors if there is a gas appliance or attached garage

These aren't optional. A unit that doesn't meet habitability standards can't be legally rented — and if a habitability issue surfaces after move-in, you're exposed.

2. Document the Unit Before the Tenant Arrives — AB 2801 Compliance

California AB 2801 (effective April 2024) requires landlords to take timestamped photographs of the rental unit before a new tenancy begins, and again at move-out. The photos must be taken before returning any portion of a security deposit.

What to photograph:

• Every room, including closets
• All appliances
• All fixtures (sinks, toilets, showers, tubs)
• Flooring and walls throughout
• Any pre-existing damage or wear

Store these photos somewhere you can retrieve them easily — dated, organized by unit and tenancy. This documentation is your protection if a deposit dispute ever goes to small claims court.

3. Prepare a California-Compliant Lease

A generic lease template is one of the most common mistakes new ADU landlords make. California has specific disclosure requirements that must be included in every residential lease, and ADU leases have additional considerations on top of those.

Required disclosures and provisions include:

• Megan's Law disclosure (required in every California lease)
• Pest control disclosure if pesticides have been applied
• Lead-based paint disclosure for units built before 1978
• Bed bug disclosure (required since 2017)
• AB 1482 just cause eviction and rent increase disclosures if applicable to your property
• Utility responsibility — who pays what, and how shared utilities are calculated if meters aren't split

ADU-specific provisions to address:

• Shared driveway and parking — who has access to what, when
• Outdoor and common area use — which areas are the tenant's, which are shared, which are the owner's exclusively
• Noise and quiet hours — especially important for on-site owners
• Access to the main home — the lease should be explicit that the tenant has no right of access to any area not included in the rental

A lease that doesn't cover these specifics isn't just incomplete — it's a source of disputes down the road.

4. Collect the Security Deposit Correctly

California limits security deposits to two months' rent for unfurnished units and three months for furnished. This changed under AB 12, which took effect July 1, 2024.

At move-in:

• Collect the first month's rent and security deposit separately
• Provide a written receipt for the deposit
• Do not commingle the deposit with your operating funds — best practice is to keep it in a separate account

At move-out, you have 21 days to return the deposit or provide an itemized statement of deductions. Missing this deadline can result in penalties of up to twice the deposit amount.

5. Set Up Rent Collection

Decide how rent will be collected before the tenant moves in. California law prohibits landlords from refusing to accept rent, and there are specific rules around grace periods and late fees:

• Late fees are only enforceable if stated in the lease, and must be a reasonable estimate of actual damages — courts have rejected late fees that look punitive
• Grace period — while not legally required, many leases provide 3–5 days; be consistent
• Returned check fees are capped at $25 for the first occurrence and $35 for subsequent ones

Online payment platforms simplify collection, record-keeping, and give you a clear paper trail if a payment dispute arises.

6. Establish a Maintenance Request Process

From day one, your tenant needs to know how to report maintenance issues — and you need every request documented in writing.

Why this matters for ADU landlords specifically: when your tenant lives on your property, there's a natural tendency to handle maintenance informally. A knock on the door, a quick verbal fix, no written record. That informal handling is exactly how habitability disputes start and how you lose deposit deductions you're legitimately owed.

Set up a simple system:

• All maintenance requests go through a designated channel (email, a property management platform, or a written request form)
• You acknowledge every request in writing, even if the fix is immediate
• You document the repair: what was done, by whom, on what date

Licensed vendor for anything electrical, plumbing, or structural — not a handyman, and not yourself unless you hold the appropriate license.

7. Review Your Insurance

Your homeowner's policy likely does not cover a rental unit. Before your first tenant moves in:

• Contact your insurance carrier and confirm whether your existing policy covers the ADU as a rental
• Most carriers will require you to add a landlord or dwelling fire policy for the rental unit
• Require your tenant to carry renter's insurance — include it as a lease requirement, with Haven or your insurer listed as an additional interested party

A tenant without renter's insurance who suffers a loss will often look to you. A lease clause and a copy of their policy at move-in eliminates that ambiguity.

8. Understand Your Local Rent Control Exposure

Not every ADU is subject to California's statewide rent control law (AB 1482), but some are. The rules are based on when the property was built, who owns it, and local ordinances that may be stricter than the state baseline.

Generally:

• ADUs in single-family homes owned by individual landlords (not corporations or REITs) with fewer than 10 units total are often exempt from AB 1482
• Cities like Stockton, Tracy and others in San Joaquin County follow the state baseline — but check your city's municipal code
• Even if your unit is exempt from rent control, just cause eviction requirements may still apply after the tenant has lived there 12 months

This is one area where a quick review with a California real estate attorney is worth the time before you rent.

Haven Handles This for You

Every item on this checklist is part of what Haven Property Management Group manages for ADU owners in Tracy, Manteca, Stockton, Lodi and the broader San Joaquin County area.

Our ADU management plan is $99 per month flat — covering tenant screening, California-compliant lease preparation, AB 2801 move-in documentation, maintenance coordination through licensed vendors, and monthly financial reporting. Tenant placement is $750 or half of one month's rent, whichever is less.

If you'd rather hand this list to someone else and receive a monthly statement, that's exactly what we're here for.

Get Started

Haven Property Management Group 3120 N Tracy Blvd STE D, Tracy CA 95376 (844) 437-4969 [email protected] havenpmg.com

Select "ADU (Accessory Dwelling Unit)" on our contact form to get started, or call us directly. We'll walk through your unit and tell you exactly what needs to be in place before your first tenant moves in.

Donny Piwowarski, Broker — DRE #01444374

This article is for general informational purposes only. California landlord-tenant law, rent control provisions, and habitability requirements may vary based on your property type, location, and tenancy. For legal questions specific to your situation, consult a qualified California attorney.