Data centers are not expressly listed as allowable uses. An unlisted data center is prohibited unless the County determines it is similar and compatible with permitted uses, and that determination is available only in specified zones, including C-1, C-2, C-3, CH, CN, CS, M-1, M-RP, OT-R/GC, OT-R/LC, PI, PU, REC, SC, and TC.

A Use Determination for an unlisted data center requires a finding that it is similar to permitted uses and will not be more harmful to neighborhood health, safety, or welfare. The process includes a noticed public hearing.

Before construction, alteration, or operation begins, all required planning permits and approvals must be obtained. Building and grading permits cannot be issued unless the proposal complies with the Development Code.

Data-center development in the Coastal Zone generally requires a Coastal Development Permit, subject to exemptions for qualifying repairs and maintenance that do not enlarge the development, certain utility connections, and projects within the Coastal Commission's original permit jurisdiction.

Development Plan approval is required for all development, including grading, in zones such as M-RP, M-1, M-2, MU, PU, REC, and TC. In other zones, approval is triggered by thresholds including 5,000 square feet in some commercial zones and 20,000 square feet in many agricultural, residential, and resource-protection zones.

A Development Plan is required before a Zoning Clearance for a structure of at least 20,000 square feet, or an addition that brings a structure to at least 20,000 square feet, when the structure is not otherwise subject to a discretionary permit.

Design Review is mandatory for structures and structural alterations in several zones, including CN, C-1, C-2, C-3, inland CH, M-RP, M-1, and M-2, and may also be required in other zones or overlay areas.

A Zoning Clearance cannot be issued for a structure requiring Design Review until final Design Review approval is obtained.

Applications for Development Plans and other discretionary approvals are subject to County environmental review under CEQA, which may require additional studies and processing.

Discretionary projects may require noticed public hearings. Filing an appeal stays issuance of the permit or approval until final action, unless an exception applies.

Approval requires adequate public or private services and resources, including water, sewer, and roads. Applicants must pay for required service extensions or improvements, and inadequate services may justify denial or reduced project density.

The County may require financial assurances, including cash, a bond, a trust fund, or an irrevocable letter of credit, to guarantee completion of permit conditions. The security remains in effect until the conditions are completed.

Planning permits and related reviews carry application-processing, inspection, and enforcement fees. Unpermitted development that is later permitted is subject to an additional penalty processing fee.

A Zoning Clearance expires two years after issuance if the approved use or structure has not been established or commenced, unless extended. After a planning permit expires, work cannot continue until a new planning permit and any required building or County permits are obtained.

Development must comply with approved permit conditions and the Development Code. The County may stop conflicting work, revoke certain permits, seek injunctions or abatement, recover administrative costs, and impose civil penalties of up to $25,000 per day for willful violations.

Every use, including a change or expansion of a use or structure, must continuously maintain required off-street parking and loading. The use cannot begin and the structure cannot be occupied until required improvements are completed. Loading spaces are required for qualifying commercial buildings beginning at 3,000 square feet and industrial buildings beginning at 10,000 square feet.

Specified projects must provide stormwater controls, including commercial development of at least 0.5 acre, parking lots of at least 5,000 square feet or 25 spaces, and new development or redevelopment exceeding one acre.

Where required, landscape plans must be prepared by a landscape professional, and approval generally requires a signed landscape agreement and performance security guaranteeing installation and maintenance.

Exterior lighting must be hooded, and unobstructed beams cannot be directed toward residentially zoned or developed areas or interfere with vehicular traffic. In specified areas, lighting within 100 feet of residences, designated open space, or biologically sensitive areas must be directed away, with hoods and low-intensity decorative lighting required where applicable.

Industrial operations must comply with zone-specific performance limits. M-RP uses cannot exceed 50 decibels at or beyond the lot boundary, while M-1 and M-2 uses are subject to noise limits and restrictions on injurious odors, fumes, gases, liquids, heat, glare, radiation, smoke, dust, and vibration.

Development in an overlay zone must comply with the primary-zone requirements and additional overlay requirements, which may impose additional permits, environmental review, height limits, setbacks, habitat protections, flood review, or growth-management restrictions.

In the Summerland Community Plan area, applicable building, grading, landscaping, and other plans for new or altered buildings require Board of Architectural Review approval. A grading or development permit cannot be issued until final approval is obtained.

In Summerland, structures are limited to 22 feet in Urban Areas and 16 feet in Rural Areas, with no exemptions from those maximum heights. Commercial projects are generally limited to a 0.29 floor-area ratio and mixed-use projects to 0.35, subject to further reductions for excessive plate heights or understories.

Before discretionary approval of new development, the applicant must identify required sewage collection, conveyance, treatment, and disposal facilities. A sanitation-district can-and-will-serve letter is required for final-map recordation or land-use clearance, and the necessary facilities must be operational before final inspection.

Commercial and industrial development that contributes grease, oils, or chemicals to wastewater flows must install onsite filtration, such as charcoal filters or another method approved by the Laguna County Sanitation District.

Before discretionary action on new development, the applicant must provide an acceptable water-supply letter or demonstrate adequate long-term water supply, including projected demand, drought service, reliability, firm supplies, contracts, delivery facilities, capacity, funding, and implementation scheduling. A final can-and-will-serve letter and contracts are required before map recordation or land-use clearance.

Commercial and industrial rooftop mechanical equipment must be minimized and, where unavoidable, shielded from surrounding roadways and residences through architectural design, camouflage housing, or other methods.

In Summerland, new development must contribute its fair share of Master Drainage Plan improvement costs. Projects in the Special Problems Area require Special Problems Committee review and a finding that they will not worsen existing drainage problems, and projects causing offsite drainage impacts must provide an approved onsite drainage system.

In Toro Canyon, non-agricultural structures are subject to Board of Architectural Review criteria, including a maximum 25-foot residential height limit, limits on understories and retaining walls, non-reflective materials and colors, shielded downward-directed lighting, and a maximum 16-foot total vertical height for graded slopes and visible retaining walls, subject to limited exemptions.

In Toro Canyon, construction activities and equipment maintenance within 1,600 feet of a residence are limited to 8:00 a.m. to 5:00 p.m., Monday through Friday. Stationary construction equipment that could exceed 65 dB(A) at the site boundary must be shielded and located at least 200 feet from sensitive receptors.

Toro Canyon construction sites must provide recycling bins, collect recyclable materials accepted by County facilities, and provide adequate accessible storage areas or enclosures.

Development in or adjacent to designated Environmentally Sensitive Habitat must include mandatory buffers, including generally 100 feet from riparian forest corridors in Rural Areas, 50 feet from monarch butterfly habitat, 100 feet from wetlands, and specified buffers from oak forest, coastal sage, and scrub oak habitats.

In Toro Canyon inland areas, development is generally prohibited on slopes greater than 30 percent unless necessary to prevent denial of reasonable use. Development on slopes between 20 and 30 percent requires a qualified professional's finding that it will not cause unstable slopes or severe erosion.

Development in Toro Canyon floodways is prohibited except when it complies with applicable flood-control laws and policies. Development in the floodplains of Toro, Picay, Garrapata, or Arroyo Paredon Creeks is also prohibited unless necessary to allow reasonable use of the property or accomplish an approved major public policy goal, with additional mitigation requirements.

In Toro Canyon, subdivisions of five or more lots generally require two routes of ingress and egress for emergency access, unless the applicable fire district waives or modifies the requirement and documents its findings. Private roads and driveways must meet applicable fire-district width standards.

Before issuing a permit for a project in a potentially archaeological area, the County may require the applicant to fund a Phase I archaeological survey, and all report recommendations, including additional studies or project redesign, must be implemented.

Unlisted data-center uses may be approved as similar and compatible uses in specified commercial, industrial, institutional, utility, recreation, and transportation zones, allowing them to follow the processing and standards applicable to comparable listed uses.

The code permits infrastructure that can support data centers, including electrical substations, transmission lines, utility service lines, public utility facilities, water systems, wastewater systems, reservoirs, and related facilities. Approval requirements vary by zone and facility size.

Certain inland utility installations, including poles, wires, underground gas pipelines under 12 inches in diameter, similar public utility installations, specified water-well work, and certain onsite wastewater systems, are exempt from planning permits, although building or grading permits may still be required.

Industrial Research Park, Light Industry, and General Industry zones provide development pathways for industrial, research, development, office, warehouse, and utility-related uses. Development generally requires a Final Development Plan before development or grading, and structures and alterations require Design Review.

For rezoning to Industrial Research Park, Light Industry, or General Industry zones, an applicant may generally submit a Preliminary Development Plan, unless waived, allowing zoning and coordinated project planning to be processed together.

A Development Agreement may lock in a project's duration, permitted uses, development intensity, maximum height and size, and public-purpose land provisions. It may also establish later approval terms that cannot prevent development consistent with the agreement, set construction deadlines, and allow the applicant to finance necessary public facilities and later receive reimbursement. Required hearings, consistency findings, and annual good-faith compliance review still apply.

A Specific Plan allows more precise area planning, mixed uses, comprehensive site planning, and maximum flexibility in site planning, subject to environmental review, public hearings, and adoption by ordinance.

Approved planning permits run with the land, so their conditions continue to apply to successors after a change in ownership.

Lawfully established existing uses generally are not subject retroactively to later Development Code requirements. A project lawfully under construction when a code amendment takes effect generally need not be changed to meet the new requirements, subject to nonconforming-use rules.

If the Development Code conflicts with an applicable Development Agreement or Specific Plan, the standards in the Development Agreement or Specific Plan control.

Land Use Permits are decided by the Director and generally do not require the public-hearing procedure used for Conditional Use Permits. The permit remains valid for two years if the approved use or structure has not commenced, unless extended.

Development Plans within the Director's jurisdiction do not require a public hearing; notice of the pending decision must instead be given at least 10 days before the decision.

A Modification may adjust standards for an otherwise permitted use that is not subject to a Conditional Use Permit or Development Plan, including reducing setbacks by up to 20 percent, increasing height limits by up to 10 percent, increasing floor-area ratio by up to 10 percent in specified circumstances, and changing or reducing parking requirements. It cannot authorize a prohibited use and remains subject to minimum setback and parking limits.

When a Conditional Use Permit is required, the review authority may modify specified standards, including setbacks, landscaping, parking, screening, structure coverage, height, and yard areas, when justified and consistent with the Comprehensive Plan and applicable regulations.

Commercial telecommunications facilities in nonresidential zones have tiered permitting: smaller facilities may use a Coastal Development Permit or Land Use Permit, tenant improvements may use a Director-approved Development Plan, and larger facilities may use a Minor Conditional Use Permit or Conditional Use Permit.

Certain telecommunications antennas and underground equipment may occupy setback areas or rights-of-way if they do not obstruct sidewalks, trails, or vehicle access. Existing roads and driveways must be used for access where required.

Telecommunications facilities generally must be collocated on existing support structures, but separate facilities are allowed when reasonable efforts to find an existing structure fail, no nearby facility exists, or collocation would cause greater visual impacts.

Cogeneration facilities may be allowed in the M-2 industrial zone through a Development Plan and in the M-CR coastal-related industrial zone through a Land Use Permit. A Conditional Use Permit is additionally required when the facility is within 1,000 feet of another zone, and noise mitigation requirements apply.

For cogeneration facilities within 1,000 feet of an occupied residence, operations must be designed to achieve an outside nighttime noise level of 50 dB(A) at the affected residence.

Minor changes to an approved Coastal Development Permit, Land Use Permit, or issued Zoning Clearance may be approved by the Director without additional public notice when they substantially conform to the approval, do not change the use or development scope, do not alter compliance conclusions or findings, and the permit has not expired.

Minor changes to an approved Conditional Use Permit or Final Development Plan may be authorized through a Substantial Conformity Determination without public notice or a public hearing if they remain substantially consistent with the original approval. Any required follow-up Coastal Development or Land Use Permit must still be obtained before the changed development or use begins.

An amendment to an approved Conditional Use Permit or Final Development Plan that is not in substantial conformity may be decided by the Director without a public hearing, with at least 10 days' notice, if it concerns an area previously analyzed or eligible for the specified environmental review path, remains consistent with the original findings, and has substantially the same or lesser environmental impacts.

The Director may extend a Zoning Clearance, Land Use Permit, Modification, or Development Plan once for 12 additional months for good cause, subject to applicable findings and filing requirements. A Conditional Use Permit or Minor Conditional Use Permit may also receive one good-cause extension if its original approval findings remain valid.

A Variance may provide relief from strict Development Code requirements when exceptional property conditions create practical difficulties or unnecessary hardship. It cannot authorize an otherwise prohibited use, waive procedures, or reduce certain specified parking requirements.

A Zoning Clearance certifies that a compliant use or development satisfies applicable Development Code provisions and existing permit conditions. Required prior approvals and site-compliance requirements must be met.

The County may amend the Development Code to add or modify allowed uses, standards, requirements, or procedures, and may amend the Zoning Map to rezone property or add or remove overlay zones. Applicants may initiate qualifying amendments subject to ownership or substantial-interest requirements, environmental review, public hearings, and consistency findings.