SB 684 Los Angeles Starter Homes: What Owners Need Know

Quick answer: SB 684 Los Angeles starter homes matter because California’s small-lot housing law is now moving from theory to construction: ABC7 Bay Area reported that six townhouses are being built in Campbell under Senate Bill 684, with completion and move-ins expected in early 2027. For Los Angeles property owners, the lesson is not that every lot can become six homes; it is that qualifying urban infill sites may have a faster, ministerial path to up to 10 ownership units when the project satisfies state eligibility rules and local objective standards.

The Starter Home Revitalization Act is a California housing law, amended by SB 684, SB 1123, and AB 130, that streamlines qualifying small subdivisions and housing development projects with 10 or fewer units.

What does SB 684 Los Angeles starter homes mean after the Campbell project?

SB 684 Los Angeles starter homes means a qualifying Los Angeles infill parcel may be reviewed through a faster, ministerial subdivision and housing approval process instead of the slower discretionary path. The Campbell project shows how the law can be used for a small for-sale townhouse project on an urban site, but Los Angeles owners still must prove eligibility parcel by parcel.

According to ABC7 Bay Area, the Campbell project is planned for a roughly 9,000-square-foot lot and includes six three-story townhouses with two-car garages, three- and four-bedroom floor plans, and expected pricing between about $1.1 million and $1.3 million. The report identified the project as the first housing project approved under SB 684 and stated that completion and move-ins are scheduled for early 2027.

For Los Angeles, the more important takeaway is procedural. Los Angeles City Planning’s SHRA page states that qualifying projects are not subject to CEQA review, public hearings, or appeals, and may result in up to 10 new lots or dwelling units, excluding a remainder parcel or ADUs and JADUs where applicable.

How did SB 684 Los Angeles starter homes change the prior approval rules?

SB 684 Los Angeles starter homes changed the approval process by requiring local agencies to ministerially consider qualifying small housing developments and maps, without discretionary review or a public hearing. The bill added Government Code Sections 65852.28, 65913.4.5, and 66499.41, creating a more predictable path for qualifying projects of 10 or fewer units on eligible urban lots.

Before SB 684’s operative provisions took effect on July 1, 2024, many small-lot ownership projects still faced discretionary design review, public hearings, appeals, and CEQA risk depending on the local process. Under the SB 684 framework, a completed qualifying application must generally be approved or denied within 60 days; if the local agency does not act within that period, the application may be deemed approved under the statute.

The law also limits certain local standards that would undermine the small-lot concept. For example, state law restricts local agencies from imposing some setback, parking, minimum parcel-size, and floor-area-ratio standards where those standards conflict with the statute. That does not eliminate design work, building-code review, utility coordination, grading, fire access, or objective zoning compliance; it simply narrows the city’s discretion when a project is eligible.

Which Los Angeles properties may qualify for SB 684 starter homes?

Los Angeles properties may qualify for SB 684 starter homes if they meet the state’s site, zoning, subdivision, ownership, density, infrastructure, tenant-protection, and environmental criteria. The City of Los Angeles confirms eligibility through its SHRA process, including review through City Planning and related subdivision agencies.

Los Angeles City Planning states that SHRA projects can generally involve up to 10 parcels and 10 residential units, excluding any remainder parcel and any ADUs or JADUs. Multifamily-zoned lots must be under five acres, while single-family-zoned lots must be under 1.5 acres and vacant under the applicable SHRA criteria. Newly created parcels must be at least 600 square feet in multifamily zones and 1,200 square feet in single-family zones.

Eligibility is not limited to one ownership structure. Los Angeles City Planning’s implementation memo identifies fee simple ownership lots, condominiums, housing cooperatives, community land trusts, and tenancy-in-common arrangements as potential SHRA ownership structures when the project satisfies the statute.

Tenant protections are a major constraint. The Los Angeles memo explains that a project may not be approved if it would require demolition or alteration of affordable restricted housing, housing subject to rent or sales price control such as the Los Angeles Rent Stabilization Ordinance, or housing occupied by a tenant within the five years before the application date. Parcels with certain Ellis Act withdrawals within 15 years are also restricted.

What design and permitting limits still apply to SB 684 projects in Los Angeles?

SB 684 projects in Los Angeles still need strong architectural planning because ministerial does not mean automatic. A qualifying project must still satisfy objective zoning standards, objective subdivision standards, objective design standards, building-code requirements, engineering conditions, utility service, and site-specific hazard rules that are not preempted by state law.

Los Angeles City Planning’s October 28, 2025 implementation memo states that eligible SHRA applications are not subject to discretionary review or a public hearing and must be approved or denied within 60 days after a completed application is received. The same memo also explains that Chapter 1 zoning requirements, height limits, building-code separation, public works conditions, and other objective standards may still apply unless they conflict with the SHRA.

Parking is one example where the law materially changes project design. Los Angeles explains that parking requirements for SHRA projects may not exceed the SB 9 limits, meaning no more than one parking space per unit, and no on-site parking can be required in certain transit-adjacent or car-share-adjacent locations. The city also notes that parking cannot be required to be covered or enclosed under the SHRA.

Environmental exclusions are another practical filter. Los Angeles identifies ineligible or restricted areas including high or very high fire hazard severity zones, wetlands, prime farmland, conservation land, protected-species habitat, hazardous waste sites, special flood hazard areas, regulatory floodways, and earthquake fault zones unless applicable standards or conditions are met. In hillside and hazard-prone parts of Los Angeles, this screening can determine whether the strategy is viable before design begins.

How should Los Angeles owners evaluate an SB 684 starter home opportunity?

Los Angeles owners should evaluate an SB 684 starter home opportunity by starting with zoning, parcel size, vacancy history, tenant history, Housing Element status, hazard overlays, access, utilities, and financial feasibility. A project can look promising on unit count but fail because of one eligibility item or because the resulting homes cannot pencil after construction and infrastructure costs.

The first step is a zoning and title review. A design-build team should confirm whether the lot is multifamily-zoned or a vacant single-family-zoned lot, whether prior SB 9 or SHRA activity affects eligibility, whether the site is identified in the Housing Element, and whether the ownership structure will be fee simple, condominium, TIC, cooperative, or land trust.

The second step is a yield study. In Los Angeles, SB 684 feasibility often turns on how many real, buildable units can fit after fire access, trash staging, open space, setbacks, height, circulation, building-code separation, and construction logistics are accounted for. A 10-unit theoretical maximum may become a six-unit or eight-unit practical project once the site is designed responsibly.

The third step is entitlement sequencing. Even with a streamlined ministerial review, applicants need coordinated drawings, a parcel or tentative map strategy, preliminary zoning assessment, civil engineering, utility planning, and a permit-ready architectural package. In Los Angeles, speed comes from submitting a complete and defensible application, not from relying on the word “streamlined.”

How can 121 Design Build help with SB 684 Los Angeles starter homes?

121 Design Build helps Los Angeles owners translate SB 684 feasibility into permit-ready architecture and construction planning. Because the firm combines architecture and construction under one roof, the team can test zoning strategy, unit yield, construction cost, and buildability early rather than discovering conflicts after entitlement drawings are already in motion.

For ground-up small-lot homes, our New Construction service is the closest fit. For owners comparing SB 684 with lot-split or duplex strategies, our SB9 service can help evaluate the better path. If a site is better suited to accessory housing than a full subdivision, our ADU & JADU team can assess lower-disruption alternatives. For existing properties where expansion may be more practical than subdivision, our Addition & Remodel service can compare value creation options.

If you own a Los Angeles property and want to know whether SB 684, SB 9, ADUs, or a conventional new-construction strategy creates the strongest path, contact 121 Design Build to schedule a site-specific feasibility conversation.

Key Takeaways

• ABC7 Bay Area reported that six townhouses are being built in Campbell under SB 684, with move-ins expected in early 2027.
• SB 684’s operative provisions took effect on July 1, 2024; SB 1123 and AB 130 amendments took effect on July 1, 2025.
• Los Angeles SHRA projects can involve up to 10 lots or units when all state and local objective criteria are satisfied.
• Ministerial approval can remove discretionary hearings, appeals, and CEQA review, but it does not remove building-code, engineering, utility, or hazard-review requirements.
• Tenant protections, RSO status, fire zones, flood zones, earthquake fault zones, and Housing Element requirements can determine whether a Los Angeles site is eligible.

Frequently Asked Questions

What is SB 684 in California housing law?

SB 684 is a 2023 California law that amended the Starter Home Revitalization Act to streamline qualifying small housing developments and subdivisions of 10 or fewer units. It added Government Code Sections 65852.28, 65913.4.5, and 66499.41 and became operative on July 1, 2024.

Can SB 684 be used in Los Angeles?

Yes, SB 684 and related SHRA amendments can be used in Los Angeles when a project meets the state eligibility criteria and Los Angeles objective standards. Los Angeles City Planning has a dedicated SHRA/SB 684/1123 process and an implementation memo for city staff and applicants.

Does SB 684 allow 10 homes on any Los Angeles lot?

No, SB 684 does not allow 10 homes on every Los Angeles lot. Eligibility depends on zoning, parcel size, vacancy status for single-family-zoned lots, tenant history, environmental exclusions, density rules, infrastructure, and objective development standards.

Is an SB 684 project exempt from CEQA in Los Angeles?

Los Angeles City Planning states that eligible SHRA projects are not subject to CEQA review, public hearings, or appeals. The project must still be eligible under the statute and must still comply with applicable objective standards and building requirements.

How is SB 684 different from SB 9?

SB 9 generally focuses on two-unit development and urban lot splits for qualifying single-family parcels. SB 684 and the broader SHRA framework can support qualifying small subdivisions and housing developments of up to 10 units, including multifamily-zoned sites and, after SB 1123, certain vacant single-family-zoned lots.

Sources

• ABC7 Bay Area: Campbell six-townhouse SB 684 project
• California Legislative Information: SB 684 bill text
• Los Angeles City Planning: SHRA/SB 684/1123
• California HCD Housing Law Fact Sheets: Starter Home Revitalization Act

This article is general information from a design-build and permitting perspective and is not legal advice.

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