Density Bonus Waivers vs. San Diego's 30-Foot Coastal Height Limit

You're planning an affordable-heavy project on a coastal parcel, and a local overlay caps building height at 30 feet. Do the math and the homes don't fit — not at the density that makes the affordable units pencil. The cap looks like the end of the conversation.

Here's the thing: under California's State Density Bonus Law, a height limit that would physically block a qualifying project isn't a ceiling you have to build under — it's a standard the city may have to waive.

That's the through-line of a technical assistance letter HCD sent the City of San Diego this spring, about a 4,254-unit redevelopment on a City-owned site.

The project HCD looked at

San Diego is weighing land-use approvals for Midway Rising, a phased, mixed-use redevelopment on a 49-acre City-owned property along Sports Arena Boulevard. HCD's letter describes it as 4,254 new housing units, 2,000 of them deed-restricted affordable rental units for lower-income households (up to 80 percent of area median income), plus a new sports arena, commercial and retail space, and parks. The site sits inside the City's Coastal Height Limit Overlay Zone (CHLOZ), which — in HCD's words — "imposes a 30-foot height limit."

A 30-foot cap on a 4,254-unit project is not a rounding error. It's the whole question.

The waiver the Density Bonus Law describes

The letter quotes the operative language of the State Density Bonus Law (Gov. Code § 65915) on waivers:

"[i]n no case may a city, county, or city and county apply any development standard that will have the effect of physically precluding the construction of a development meeting the [affordability] criteria of subdivision (b) at the densities or with the concessions or incentives permitted by this section..."

Read that again. A waiver isn't a favor the city grants when it feels generous. If a development standard would physically preclude the affordable project at its permitted density, the statute says the city may not apply it.

Verified against HCD's Letter of Technical Assistance to the City of San Diego re: Midway Rising Project (April 30, 2026), quoting State Density Bonus Law.

What HCD concluded on Midway Rising

HCD walked through why the arena, parks, retail, and street network — the arena required by the City under the Surplus Land Act, the rest high priorities for the City — occupy land that would otherwise hold housing, and why relocating the arena is needed to physically fit the units. Then it landed the finding:

"[I]t is apparent that the Project as proposed, including relocation and reconstruction of the required arena, more than 4,000 housing units, and other project elements, would be physically precluded by the 30-foot height limit."

In HCD's reading, the Project qualifies as a "housing development" under the SDBL, "which makes the Project eligible for concessions and waivers as described above." The 30-foot cap is exactly the kind of standard the waiver provision is written to reach.

The voter-initiative wrinkle

Here's the part that carries beyond San Diego. The City didn't ask HCD whether it could exceed the 30-foot limit — it asked to what extent. HCD framed the baseline this way:

"[I]t is HCD's position that the SDBL can result in overriding local voter initiatives just as it can supersede local development regulations..."

That's a pointed statement of HCD's view: in its position, a locally adopted standard doesn't get a pass just because voters, rather than a council, put it in place. The waiver reaches development standards regardless of how they were enacted.

What this means for your project

The load-bearing phrase is "physically precluding." HCD's whole analysis turns on a factual showing — that the required components and the unit count can't coexist with the standard at the permitted density. If you're staring at a height cap, a setback, a lot-coverage rule, or a stories limit that blocks your qualifying affordable project, the waiver provision is the tool, and your job is to document why the standard precludes the project as proposed.

Two cautions. First, HCD was explicit that its analysis rests on "the specific and unique facts and circumstances of this project" — a City-owned site, an arena mandate, and unusually deep financial disclosure — and "cannot necessarily be applied to other projects in the same manner." Second, this is a technical assistance letter: it states HCD's interpretive position, not a court ruling, and courts have the last word. None of this is legal advice. Before you rely on it, confirm how it applies with your own jurisdiction and your counsel.

What CrossBeam does with it

When the letter lands on your desk, CrossBeam turns it around the same day: what each item is actually asking, the code or law behind it, and a written response you can hand to your team or your attorney — the back-and-forth that used to eat weeks, done in a couple of hours.