SB 35 speeds up ministerial approval for qualifying multifamily projects—but stormwater, fire access, and objective design standards still apply....

SB 35 forces ministerial approval on qualifying projects but does nothing to reduce the technical requirements underneath. Stormwater, fire access, and objective design standards still apply in full, and the streamlined timeline only works if the civil package was built to hit them the first time.

What the Law Actually Says

SB 35 (Government Code Section 65913.4) streamlines the permitting process for multifamily housing projects that meet specific criteria: the project site is zoned for residential or mixed-use, the project includes a specified percentage of affordable units, the project complies with objective planning standards, and the project is not located in certain environmentally sensitive areas. If all criteria are met, the project is entitled to a ministerial approval — no discretionary review, no public hearing, no CEQA.

For the civil engineer, SB 35 streamlining changes the design timeline. Without discretionary review, the project moves from application to building permit on a compressed schedule. There's no entitlement phase where the site plan gets refined through planning commission feedback. The civil drawings submitted for building permit are based on the site plan that was submitted for SB 35 eligibility review, and that site plan needs to be technically complete enough to demonstrate compliance with all objective standards.

Objective Standards and the Civil Scope

"Objective standards" are requirements that involve no personal judgment — they're measurable and verifiable. Maximum building height: 55 feet. Minimum setback: 15 feet. Maximum lot coverage: 80%. Required parking: 1 space per unit within a half-mile of transit. These are objective. "The project shall be compatible with the surrounding neighborhood" is not objective and cannot be applied to an SB 35 project.

The civil engineer's deliverables for an SB 35 project are almost entirely governed by objective standards: grading must comply with the building code, stormwater must comply with C.3, utilities must comply with the utility provider's design standards, and ADA access must comply with CBC Chapter 11B. None of these involve subjective review. But they all need to be fully demonstrated in the submittal documents, because the city's review is limited to confirming compliance — they can't request redesign for aesthetic or compatibility reasons.

Density Bonus Interactions

Many SB 35 projects also invoke the density bonus law to increase their unit count beyond the base zoning. The density bonus provides additional units in exchange for affordable housing commitments, plus incentives and concessions that allow the developer to deviate from certain zoning standards (reduced setbacks, increased height, reduced parking).

From the civil perspective, the density bonus creates a moving target for site capacity analysis. The base zoning might allow 40 units. The density bonus might increase that to 56 units. Each additional unit adds demand to every utility system, increases impervious area for stormwater calculations, and adds parking spaces (or trips, if parking is reduced). The civil engineer needs to design for the maximum entitled density, even if the developer might build fewer units in the first phase.

The Bottom Line

Every project has its own constraints — site geometry, soil conditions, agency jurisdiction, schedule pressure. What doesn't change is the physics: water flows downhill, utilities need clearance, and code requirements aren't negotiable. The projects that go smoothly are the ones where the civil engineer is involved early enough to shape the site plan around these realities rather than retrofitting solutions after the architecture is locked.

At Calichi Design Group, we've built our practice around getting these details right the first time. Our team has permitted projects in dozens of jurisdictions across the West Coast and Pacific, and we know which agencies want what, which reviewers flag what, and which shortcuts actually cost more time than they save.

If you're starting a project and want to avoid the most common civil engineering pitfalls, reach out for a conversation. We'll give you an honest assessment of what your site needs and a fixed-fee proposal — usually within a week.