A tenant-occupied property can qualify for SB 9, but the proposed work matters. Both approval paths prohibit projects that require demolition or alteration of housing occupied by a tenant within the last three years. Preserving that housing may leave a path forward, subject to other eligibility rules. An urban lot split also generally requires a commitment to future owner occupancy. HCD’s April 2026 fact sheet describes these protections.

California law as of August 19, 2026.

Identify the approval path and proposed work

In California, SB 9 provides two distinct approvals for qualifying parcels in single-family residential zones:

• Housing development, under Government Code section 65852.21: permits a proposal with up to two primary homes, including adding one home to an existing home.
• Urban lot split, under section 66411.7: divides an existing parcel into two parcels, subject to subdivision requirements.

An owner can pursue either process or combine them. Both use ministerial review: the agency checks compliance with applicable requirements without discretionary review. A combined proposal must satisfy both statutes, and subdivision approval does not establish that a later demolition proposal qualifies. The statutory text effective at publication appears in sections 7 and 9 of chaptered SB 1426.

Start with a drawing identifying every existing home, proposed home and new property line. Mark what would remain, change or be removed. That gives you a specific scope of work to check against each dwelling’s rental history.

Match tenant history to demolition and alteration

For both approval paths, the protected-housing provisions restrict demolition or alteration of housing that meets any of these descriptions:

• Its rents are restricted by a recorded covenant, ordinance or law to levels affordable to moderate-, low- or very-low-income households.
• It is subject to rent or price control imposed through a public entity’s lawful authority.
• A tenant occupied it at any point during the last three years.

These are independent tests. Recent tenant occupancy triggers protection regardless of the tenant’s income or whether the home was rent-controlled. Passing the three-year test does not remove an affordability restriction or rent-control protection. See sections 65852.21(a)(3) and 66411.7(a)(3)(D).

Hypothetical example: A tenant leaves a house in June 2025, and the owner proposes an SB 9 project in August 2026. Demolishing that house would fail the recent-occupancy test. Keeping it unchanged and proposing a detached home elsewhere on the parcel could avoid that particular restriction, assuming the project meets the remaining requirements. Have the designer identify whether access, utility connections or other work would require alterations to the retained house.

A sale or a period of vacancy does not erase the occupancy history under the statutory provisions. Collect dates from the previous owner when necessary, and ask the reviewing agency to confirm the lookback dates it will apply to the application.

Older summaries may mention a 25% exterior structural wall demolition limit. SB 450 removed that separate limit while retaining the protected-housing restrictions. Removing less than 25% of a protected home’s exterior structural walls is therefore not an automatic exception to the prohibition on alteration. Chaptered SB 450 documents the change.

Check Ellis Act history separately

An Ellis Act withdrawal—an owner’s exercise of statutory rights to withdraw rental accommodations—raises a separate 15-year issue. For a two-unit development, section 65852.21(a)(4) expressly excludes a parcel with such a withdrawal within 15 years before application submission. The lot-split statute places Ellis-affected parcels within its demolition-or-alteration restriction in section 66411.7(a)(3)(D)(iii). The two provisions are worded differently.

Flag any withdrawal record for review under the particular approval path. An ordinary tenant departure is not proof of an Ellis withdrawal, and preserving a building does not necessarily resolve every Ellis-related issue.

Separate the lot-split residence commitment from rental history

An urban lot-split applicant generally must sign an affidavit stating an intention to occupy one housing unit as their principal residence for at least three years from approval of the split. The statute exempts applicants meeting its definitions of a community land trust or qualified nonprofit corporation and prohibits additional local owner-occupancy standards for the split. Section 66411.7(g) sets out these requirements.

The commitment concerns future residence; the tenant-history test concerns past occupancy. The affidavit does not require three years of prior personal occupancy, and signing it does not cure prohibited work on recently rented housing.

A project using only the two-unit development statute has no equivalent statewide SB 9 owner-occupancy affidavit. That distinction matters to an investor who could preserve an existing rental and add a home but cannot truthfully make the residence commitment required for a split.

A split also requires ownership and parcel-history checks. The parcel cannot already have been created through an SB 9 urban lot split, and the owner or someone acting in concert with the owner cannot have previously used that process on an adjacent parcel. Section 66411.7(a)(3) contains those separate conditions.

Build a property-history file before signing declarations

Prepare a chronology for each dwelling, covering the preceding three years at minimum. Extend it where Ellis Act history or another housing-protection review requires a longer period. Useful records include:

This is a suggested research file, not a uniform statewide submission checklist. A deed establishes ownership but cannot, by itself, establish who occupied a home. Likewise, one owner’s utility bill does not establish that another dwelling on the parcel was vacant. Mark gaps as unresolved rather than filling them with assumptions.

For a local illustration, Fresno’s published SB 9 checklist requests a grant deed and a housing-demolition and rental-market affidavit. Its lot-split section also requests a preliminary title report dated within 30 days of submission and an affidavit about prior SB 9 splits. These are local documentation requests. Obtain the current checklist from the responsible city or county; the older Fresno PDF still contains the superseded 25% wall language.

Check local standards and other housing protections

Preserving the rental resolves only one part of feasibility. Ask planning staff to identify the applicable zoning, access, utility, historic-resource and site restrictions. The buildable-lot due-diligence guide helps organize that separate investigation.

Local objective standards have statutory limits. For two-unit developments, the statute generally requires standards to apply uniformly within the underlying zone, while allowing more permissive standards and specified historic-district standards. For lot splits, standards must relate to parcel design or improvements. Both statutes limit standards that would physically prevent the prescribed housing capacity, including the ability to accommodate units of at least 800 square feet. These limits do not waive protected-housing restrictions. See the standards in both SB 9 statutes.

Other housing protections can require a longer history. HCD’s April 2026 Housing Crisis Act fact sheet describes five-year lookbacks for certain affordability restrictions, rent control and lower-income occupancy, along with replacement-housing and tenant protections. Depending on the facts, relocation obligations and more protective objective local rules can apply. Passing SB 9’s three-year test therefore does not establish permission to demolish.

Planning approval also does not itself end a tenancy. State and local termination and eviction requirements need a separate assessment, as the California attorney general’s tenant guidance explains. Consult a California attorney familiar with land use and tenant protections before acting on disputed occupancy history or a proposal that would displace residents.

Get a written response before committing to full design

Send the reviewing department the proposed approval path, annotated plans, occupancy chronology and supporting records. Request a written response identifying unresolved eligibility questions, required evidence and applicable zoning and land-use rules. A preliminary response helps scope the project; it is not an approval.

Obtain application and map fee schedules, plus quotes for title work, surveying and design. Keep document preparation separate from the statutory decision period: both SB 9 processes generally require approval or denial within 60 days after the agency receives a completed application. That deadline is not a promise that research, design and construction permitting will all take 60 days.

Before relying on SB 9 for a homeownership decision or an acquisition budget, make sure the file identifies which housing must remain untouched, which facts still need proof and, if a split is proposed, who can make the required residence commitment.