AB 87 revises California’s Density Bonus Law to standardize how local governments process density bonus applications, expand eligible bonus categories (including student and shared housing), and codify parking and donation incentives. It requires local governments to adopt implementation ordinances, publish application checklists and timelines, and limits the studies they may require from applicants.
The bill reshapes the tradeoffs between added entitlements and public benefit: it recalibrates bonus formulas, clarifies what incentives and waivers a developer can request, creates a land‑donation pathway for additional density, and builds enforceable remedies when a jurisdiction refuses a required bonus or waiver. Developers, local planning departments, affordable‑housing advocates, and housing finance stakeholders will need to update practices and agreements to reflect the new mechanics.
At a Glance
What It Does
AB 87 sets procedural rules for density bonus applications, defines expanded categories that qualify for bonuses, restates the types and counts of incentives or concessions developers are entitled to, and prescribes parking maxima tied to bonus levels and transit proximity. It also creates an explicit land‑donation bonus and a childcare bonus option tied to additional residential floor area.
Who It Affects
Local governments must adopt ordinances, meet timelines, and grant or justify denials; residential developers seeking bonuses (including student‑housing and shared‑housing projects) must follow the new application checklist, select which eligibility path to use, and meet prescribed affordability and deed‑restriction requirements. Housing finance partners, nonprofit housing developers, and transit planners will be affected by revised parking and affordability terms.
Why It Matters
The bill reduces procedural ambiguity that has delayed bonus projects, expands the universe of projects eligible for density incentives, and increases predictability for financing and land‑use planning. It also shifts enforcement dynamics in favor of applicants by clarifying review standards and remedies, which will change negotiation leverage between developers and jurisdictions.
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What This Bill Actually Does
AB 87 imposes upfront process obligations on cities and counties. Each local government must adopt an ordinance explaining how it will implement the state density bonus rules, publish a complete list of submittal documents, and set timelines consistent with statutory application review deadlines.
Jurisdictions may not require studies beyond state law, though they can ask for reasonable documentation proving eligibility — and they must tell applicants, when a file is deemed complete, how much bonus and what parking ratio the project qualifies for based on the project as submitted.
The bill preserves the core eligibility paths familiar to practitioners — set percentages of units reserved for lower‑income, very low‑income, moderate‑income, senior, student, special needs, or 100‑percent affordable projects — but it requires applicants to elect which eligibility path will be used to calculate the bonus. It also makes student housing and shared‑housing explicitly eligible, specifying that for student projects a “unit” may be a rental bed and that lower‑income student rents are calculated against a specified share of area median income.
Where bonuses are claimed, developers gain a set number of incentives or concessions (from one to five) depending on the affordable‑unit share; a jurisdiction must grant the requested concessions unless it finds, on substantial evidence, specific narrow exceptions like unmitigable historic‑resource harm or direct conflict with state or federal law.AB 87 tightens rules on replacement and preservation. Projects that would redevelop rent‑restricted or recently occupied affordable units must replace those units on an equivalent‑size and income‑targeted basis, with replacement units subject to long‑term recorded affordability.
For for‑sale bonus units the bill requires either initial sale to an eligible buyer at an affordable housing cost or a right of purchase by a qualified California nonprofit if the unit does not sell within a defined window; resale uses equity‑sharing mechanics to preserve affordability.The bill also prescribes concrete numeric mechanics that affect project economics: it supplies density‑bonus tables keyed to the percentage of affordable units, establishes a separate 15 percent donation bonus for land conveyances (additive up to an overall cap), sets maximum vehicular parking ratios by unit type (with lower maximums near major transit and in certain bonus-qualified projects), rounds fractional units up, and requires long affordability terms for bonus units. When a jurisdiction refuses to grant a required concession, incentive, waiver, or parking benefit, the applicant can sue and, if successful, the court awards attorneys’ fees; the local government bears the burden of proof in denials.
The Five Things You Need to Know
Bonus units and qualifying density bonus units must remain affordable under recorded restrictions for long terms (the statute requires 55 years for very low and low‑income rental units or longer if required by financing).
The statute caps parking at specific maxima upon developer request: 1 space for studio/one‑bed, 1.5 for two‑to‑three‑bedrooms, 2.5 for four+ bedrooms, and zero for a student housing bedspace, with lower caps (0.5 spaces per unit or per bedroom) when projects meet higher affordable shares and are within one‑half mile of major transit.
A land‑donation pathway grants a fixed 15% density increase if the donated parcel meets size, zoning, entitlement, timing, and affordability requirements; donations can stack with other bonuses up to a combined 35% mandated increase.
Student housing is treated differently: a “unit” may be a rental bed (with pro rata common area) and lower‑income student beds are rent‑restricted at 30% of 65% of area median income; shared‑housing buildings and shared units get tailored definitions and unit counting rules.
If a local government denies a requested incentive, concession, waiver, or parking ratio, the developer may sue; courts must award attorney fees to prevailing plaintiffs and the local government bears the burden of proof to justify denials based on narrow, evidence‑based exceptions.
Section-by-Section Breakdown
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Procedural duties for local governments and application completeness
This section forces jurisdictions to stop treating density bonus review as ad hoc. Cities and counties must adopt an implementation ordinance, publish the complete submittal list, adopt processing timelines, and notify applicants when an application is complete consistent with state review timelines. Critically, once an application is deemed complete the jurisdiction must state the amount of bonus and the parking ratio the applicant is eligible for based on the submitted project; it must later adjust awards only if the project changes. Practically, this reduces late surprises in discretionary review and gives developers clearer entitlement certainty early in the permitting pipeline.
Eligibility categories and applicant election rule
AB 87 enumerates the qualifying paths that trigger a density bonus (percentages for lower/very low/moderate income units, senior housing, special needs groups, student housing, and 100% affordable projects). Importantly, the applicant must elect which path to use to calculate the bonus, preventing double‑counting across categories and ensuring the bonus math follows a single chosen eligibility route. That election affects bonus amount, required affordability terms, and which incentives and concessions are available.
Affordability, resale, and replacement obligations
The bill requires recorded affordability covenants with long terms (rental units: a baseline 55‑year restriction, longer where financing requires it) and establishes resale/repurchase mechanics for for‑sale bonus units (initial purchaser requirements, a 180‑day resale backstop to a qualified nonprofit, and equity‑sharing on resale). It also contains detailed replacement rules: if a site includes rent‑restricted or recently occupied affordable rentals, the developer must replace equivalent units by size and income category or meet narrow alternatives. Those provisions preserve the public benefit and reduce incentive for demolition of existing affordable housing.
Incentives, concessions, and denial standards
Developers may propose specific concessions; jurisdictions must grant the requested concession or incentive unless they make a written finding, supported by substantial evidence, that a requested change either (a) would not reduce costs for the targeted affordability levels, (b) would cause an unmitigable specific adverse impact on public health/safety or a listed historic resource, or (c) would violate state or federal law. The section also sets the number of incentives tied to different affordable shares (from one up to five), and places the burden of proof for denials on the local government — a shift that strengthens an applicant’s enforcement position.
Density‑bonus calculation tables and maximum controls
AB 87 codifies multiple tables calculating the percentage density bonus depending on the share and type of affordable units, including separate tables for low, very low, student, and moderate‑income paths. For large 100% or majority‑affordable projects the bill allows up to an 80% bonus and, in certain transit or very low vehicle travel areas, it removes maximum density controls entirely. The statute also requires rounding fractional units up, a developer‑friendly rule that slightly increases unit counts when calculations produce fractions.
Land‑donation bonus and additional bonuses for deeper affordability
Subdivision (g) creates a discrete bonus (15%) when a developer donates developable, entitled land suitable to build very low‑income units and transfers it by final map approval; donation conditions include parcel size, entitlements, and identified funding. That donation bonus stacks with the normal bonuses up to a maximum combined mandated increase (35%). Subdivision (v) provides an extra bonus layer when developers go beyond baseline affordability thresholds (for instance, higher shares of very low, low, or moderate income units), creating incremental incentives for deeper affordability.
Parking limits and transit‑proximate reductions
Parking policy is moved into the density bonus framework: upon developer request the law prescribes fixed onsite parking maxima by unit/bedroom type, allows lower caps (0.5 spaces per unit or per bedroom) when higher affordable shares align with transit proximity and unobstructed access, and eliminates parking requirements for some 100% affordable or age‑restricted projects under transit or service access conditions. Jurisdictions can apply a higher ratio only if they produce a recent area‑wide parking study with substantial evidence and pay for that study.
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Every bill creates winners and losers. Here's who stands to gain and who bears the cost.
Who Benefits
- Affordable‑housing developers and mission nonprofits — Gain clearer entitlement mechanics, defined bonus calculations, and stacking opportunities (donation and extra affordability bonuses) that improve feasibility for deeper affordability deals.
- Market‑rate developers pursuing mixed projects — Receive early certainty on eligible bonus amount, parking ratios, and a prescribed number of incentives or concessions tied to affordable shares, reducing negotiation risk with councils and planning departments.
- Lower‑income households, students, and special‑needs populations — Benefit from expanded eligible categories (student housing, shared housing, special needs, and explicit protections for replacement units) and long recorded affordability terms designed to preserve units over decades.
- Childcare operators and onsite service providers — Can leverage the childcare bonus pathway to secure additional residential floor area or an incentive that helps make on‑site childcare financially viable, improving project wraparound services for residents.
Who Bears the Cost
- Local planning departments and elected bodies — Must adopt ordinances, publish procedures and checklists, defend denials on a heightened evidentiary standard, and may face more litigation and fee awards when they lose challenges.
- Local governments’ budgets — If they want to justify higher parking ratios they must pay for an areawide parking study and produce substantial evidence; they also face administrative costs to monitor long affordability covenants and enforce replacement and resale rules.
- Market‑rate condo buyers and resellers — For for‑sale bonus units, equity‑sharing provisions and resale repurchase rights limit upside and add complexity to resale transactions, potentially affecting marketability and financing structures.
- Smaller developers without in‑house entitlement teams — Will absorb compliance costs (documenting eligibility, meeting timing requirements, and negotiating concessions) and may need to restructure deals to hit the new thresholds for maximum incentives or donation bonuses.
Key Issues
The Core Tension
The bill balances increasing developer entitlements and predictability against the public goal of long‑term affordable housing: it expands and clarifies bonuses to make more projects financially viable, but it ties those entitlements to strict long‑term affordability, replacement obligations, and administrative oversight — a trade‑off between accelerating housing supply and ensuring enduring affordability that has no perfect technical fix.
AB 87 reduces procedural ambiguity but concentrates implementation responsibilities on local governments and on applicants to choose the correct eligibility path. That creates two practical risks: first, jurisdictions that rush ordinance adoption could adopt inconsistent or over‑narrow local rules that invite litigation over how state standards are applied; second, applicants who mis‑elect an eligibility path or fail to secure required evidence at completeness check may lose or delay critical benefits.
The election rule (developer picks which category to use to calculate the bonus) simplifies math but increases tactical complexity: choosing between higher percentage bonuses and different incentive packages will become an underwriting decision with financing implications.
The bill’s parking provisions trade parking minimums for transit‑proximate access and deeper affordability, but they also create a gateway for local governments to require higher ratios if they commission studies — a potential unevenness across jurisdictions. Replacement rules and long affordability terms preserve public benefit but complicate deals: the combination of deed restrictions, equity‑sharing, nonprofit repurchase rights, and replacement obligations can change project cashflow and raise questions about financing eligibility for certain lenders.
Finally, the stronger enforcement tilt toward applicants (burden of proof on local governments and fee awards for prevailing applicants) will likely increase state‑level uniformity but also incentivize litigation as a tool to secure concessions when negotiations stall.
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