Regional Housing Needs Allocation (RHNA): Rules, Compliance, and Penalties

The Regional Housing Needs Allocation, known as RHNA, is the California process that tells every city and county how much housing it must plan for over an eight-year cycle. The state Department of Housing and Community Development (HCD) sets a total housing number for each region, the regional planning body splits that total among its member cities and counties, and each jurisdiction then has to update its land-use plans to accommodate the assigned units across four income levels. The system has run since 1969, and the penalties for ignoring an allocation have grown sharper over the past decade.¹

How HCD Sets the Regional Number

Each cycle begins with HCD issuing a single regional determination: the total number of housing units a geographic area must plan for. That number combines two components. The first is projected need, based on population and household growth forecasts from the California Department of Finance. The second is existing unmet need, which captures the shortfall already present in the current market.²

The existing-need piece is where numbers often jump. HCD looks at overcrowding rates, vacancy rates, the share of households spending more than 30 or 50 percent of income on rent, and jobs-housing imbalances. It also accounts for units lost during a governor-declared state of emergency that have not been rebuilt.³

How the Regional Total Gets Split Among Cities

Once HCD hands down the regional determination, the Council of Governments (COG) for that region divides the total among individual cities and counties. The COG’s methodology has to weigh statutory factors: each jurisdiction’s existing and projected jobs-to-housing ratio, the number of low-wage jobs relative to affordable housing, transit access, available land suitable for residential development, and infrastructure constraints such as limited sewer or water capacity. Protected lands — federal floodplains, farmland under agricultural preservation, open-space preserves — reduce what a city can realistically absorb.³

The practical effect is that larger allocations tend to land on job-rich cities near transit corridors, which are frequently the same cities with the strongest political resistance to new housing.

A city that believes its draft allocation is wrong can appeal under Government Code 65584.05, but the grounds are narrow. The jurisdiction has to show the COG failed to properly consider the required data, failed to follow its own methodology, or that a significant and unforeseen change in local circumstances warrants a revision.⁴ General disagreement with the size of the number, or local political opposition to growth, are not valid grounds. HCD can also appeal, which occasionally pushes an allocation up rather than down.

The Four Income Categories

Every RHNA number is broken into four income tiers pegged to the Area Median Income (AMI) for the county. A city cannot satisfy its obligation by planning only for luxury housing.

Very low income: households earning up to 50 percent of AMI
Low income: households earning 50 to 80 percent of AMI
Moderate income: households earning 80 to 120 percent of AMI
Above moderate income: households earning more than 120 percent of AMI

These thresholds match the income categories HCD publishes annually for state housing programs.⁵ AMI varies dramatically across California, so the actual dollar amounts shift by county each year. The split matters because it drives which sites a city has to zone for higher-density, lower-cost housing rather than single-family development. A city that zones everything for large-lot homes will fail its lower-income obligations regardless of how many total units it plans for.

What a City Has to Do With Its Allocation

Once a jurisdiction receives its final RHNA numbers, it has to update the Housing Element of its General Plan, the section that lays out the city’s strategy for accommodating residential growth. Housing Elements run on an eight-year cycle and must be submitted to HCD for review and certification.²

The core of the Housing Element is the sites inventory: a parcel-by-parcel list of land where the city expects housing to be built during the planning period. Each site has to be realistically available for development, with appropriate zoning and infrastructure, and with densities high enough to accommodate the income level it is assigned to serve. Where the inventory of appropriately zoned sites falls short, the jurisdiction has to rezone parcels within three years of adopting its Housing Element to close the gap.

HCD reviews whether the listed sites are genuinely developable. A list padded with parcels that have active commercial leases, contamination issues, or owners with no intention of selling will not pass scrutiny.

The No Net Loss Rule

Even after a Housing Element is certified, a city cannot quietly undermine its own plan by downzoning sites or approving projects at lower densities than planned. Government Code 65863 requires jurisdictions to maintain enough site capacity to meet their remaining RHNA obligation at every income level throughout the entire planning period.⁶

If a city approves a project that produces fewer units at a given income level than what its Housing Element assumed for that parcel, it has 180 days to identify replacement sites with equal or greater capacity. A city that rezones a parcel to a lower density has to make written findings that the remaining sites still cover the full RHNA obligation. The law explicitly says a city cannot use the no-net-loss requirement as a reason to deny a housing project.⁶

Annual Reporting

Adopting a Housing Element is not the end of the obligation. Every city and county has to submit an Annual Progress Report (APR) to HCD and the Governor’s Office of Land Use and Climate Innovation by April 1 each year, documenting how many units were actually permitted and at which income levels.⁷ The report tracks the gap between what a city promised and what is actually getting built.

Falling behind triggers consequences. A city that fails to submit its APR on time, or that has not permitted enough units at certain income levels by the midpoint of the planning period, becomes subject to the streamlined ministerial approval process described below.

What Happens When a City Doesn’t Comply

California has layered multiple enforcement mechanisms on top of RHNA, and they stack. A non-compliant city can face financial penalties, lose control of its own planning decisions, and watch developers build projects it never approved.

Fines and Court-Appointed Oversight

Under Government Code 65585, a court that finds a jurisdiction failed to adopt a compliant Housing Element can impose fines ranging from $10,000 to $100,000 per month. Those fines go into the Building Homes and Jobs Trust Fund, not the city’s own coffers. If a jurisdiction still fails to comply after being fined, a court can appoint an agent with planning expertise to take over the governmental actions needed to bring the Housing Element into compliance.⁸

Builder’s Remedy

When a city lacks a Housing Element that HCD has found in substantial compliance, developers can invoke the Builder’s Remedy. The provision allows a developer to propose a housing project that does not comply with local zoning or the general plan, and the city may be required to approve it if the project includes affordable units.⁹ To qualify, the project has to dedicate at least 20 percent of units to lower-income households, or be entirely moderate-income or middle-income housing. In practice, a developer can propose a large apartment building in a neighborhood zoned for single-family homes, and the city’s usual tools for blocking it disappear.

Streamlined Ministerial Approval

Government Code 65913.4, originally enacted as SB 35 and later amended by SB 423, created a streamlined approval pathway that removes local discretion for qualifying multifamily projects. When triggered, a city has to approve eligible projects ministerially: no public hearings, no discretionary review, and no environmental review beyond what existing zoning already contemplated.¹⁰

The affordability threshold depends on which income category the city is underproducing. If a city has not permitted enough above-moderate-income housing to stay on pace with its RHNA target, has failed to submit its APR, or lacks a compliant Housing Element, then multifamily projects with at least 10 percent of units restricted to very low-income households qualify. If the city has met its above-moderate targets but fallen behind on lower-income housing, the threshold rises to 50 percent lower-income units.¹¹

The city has to issue a decision within 60 days for projects of 150 units or fewer and 90 days for larger ones. Miss the deadline and the project is deemed to satisfy all applicable objective standards.¹⁰

Loss of State Funding Priority

Non-compliant jurisdictions lose standing when competing for state infrastructure and housing grants. California’s Prohousing Designation Program gives cities that go beyond minimum compliance priority access to programs like Affordable Housing and Sustainable Communities grants, Infill Infrastructure Grants, Transformative Climate Communities funding, and several transportation programs.¹² A city without a certified Housing Element is not only ineligible for the Prohousing Designation but is at a competitive disadvantage for any state funding that weights housing compliance in its scoring.

Why Current Allocations Look So Much Larger

Cities that participated in earlier RHNA cycles often say the current numbers look nothing like what they were assigned a decade ago. That is not an accident. The 6th cycle allocations, covering 2023 through 2031, increased sharply for most regions because HCD began accounting more aggressively for existing unmet need: the overcrowded households, cost-burdened renters, and demolished units that prior cycles largely ignored. Earlier cycles effectively allowed regions to plan only for new growth while the existing shortfall compounded year after year. Cities that coasted through earlier cycles with minimal rezoning now face obligations that require serious changes to their land-use maps.

1
Association of Bay Area Governments. Regional Housing Needs Allocation (RHNA) Background
2
California Department of Housing and Community Development. Regional Housing Needs Allocation (RHNA) Process
3
California Department of Housing and Community Development. RHNA Methodology Factors
4
California Legislative Information. California Government Code 65584.05
5
California Department of Housing and Community Development. Income Limits
6
California Legislative Information. California Code Government Code 65863
7
California Department of Housing and Community Development. Housing Element Annual Progress Report Instructions
8
California Legislative Information. California Code Government Code 65585
9
Association of Bay Area Governments. Builders Remedy and Housing Elements
10
California Legislative Information. California Code Government Code 65913.4
11
California Department of Housing and Community Development. Streamlined Ministerial Approval Process
12
California Department of Housing and Community Development. Prohousing Designation Benefits