Carlsbad council adopts ADU ordinance amendments to align local code with state law
Loading...
Summary
The Carlsbad City Council unanimously approved changes to the city’s accessory dwelling unit (ADU) regulations to reflect state ADU law, clarifying size, conversion, parking exemptions and deed-restriction requirements; coastal-zone changes await certification by the California Coastal Commission.
The Carlsbad City Council unanimously adopted a package of amendments to local ADU rules on an informational staff recommendation that the code be updated to reflect recent state law.
Associate Planner Shelly Glennon told the council the 2025 ADU Amendment Project includes seven topic areas drafted with the state Department of Housing and Community Development to align local rules with state ADU legislation effective January 2025. Key changes clarify that attached ADUs must include newly constructed square footage; conversion ADUs must be contained entirely within the existing dwelling or accessory structure; and the previously stated 1,200-square-foot cap for a detached ADU applies only to single-family lots, not multifamily lots.
The ordinance package also updates the allowable number of ADUs on some lots to reflect state code: single-family lots may be allowed to have up to three units under state law, and existing multifamily lots may be eligible for more detached ADUs (staff noted limits apply to new multifamily development). Glennon said the amendments also preserve the city’s engineering requirement that ADU development demonstrate adequate water and sewer service.
Other notable changes include an expanded parking replacement exemption (with a coastal-zone exception for lots west of the rail corridor and Interstate 5 between Avenida and Batiquitos Lagoon), removal of a one‑story maximum for detached ADUs consistent with state rules, and a provision to replace notice-of-restriction requirements for ADUs with deed restrictions for junior ADUs where state law requires recording.
Planning staff reported one comment letter from the California Housing Defense Fund raising questions about conflicts between coastal and non-coastal standards; staff said the proposed code explicitly clarifies which rules apply in which areas and that the Planning Commission unanimously recommended approval and a CEQA exemption. Council moved to adopt the resolution, introduce the ordinances and request local coastal program certification; the motions passed unanimously.
The council’s adoption means the zone-code amendments become effective outside the coastal zone when the ordinance becomes effective; municipal code changes will be citywide 30 days after adoption. Zoning changes within the coastal zone will not take effect until the California Coastal Commission certifies the city’s local coastal program amendment. The staff record shows follow-up filings with HCD and the Coastal Commission will occur as required.
Provenance: staff presentation and council adoption were recorded in the public hearing (staff presentation beginning at the start of the Item 9 presentation and the motion/vote recorded at the close of the hearing).
