State law exempts an ADU of 750 sq ft or less from impact fees, while the City's January 2026 schedule lists multimodal and park fees starting at 750 sq ft. San Juan Unified excludes ADUs under 750 sq ft from its published school fee.
Last verified 2026-10-18. Rules change; the City of Citrus Heights Planning Division has the final word (916-727-4740).
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Gov. Code 66311.5(c)(1) exempts an ADU with 750 sq ft of interior livable space or less from impact fees. Citrus Heights' January 2026 schedule exempts less than 750 sq ft and lists multimodal and park fees for its 750-1,200 sq ft tier. The state rule and City schedule disagree at exactly 750 sq ft.
City of Citrus Heights Impact Fee Schedule (January 2026); Gov. Code 66311.5(c)(1)The City's January 2026 schedule and July 2026 brochure give different ADU exemption thresholds for the fire facility fee. The amount for a particular lot needs a Building Division quote.
City of Citrus Heights Impact Fee Schedule (January 2026); Development Impact Fees brochure (July 2026)Ask the City of Citrus Heights Planning Division before you rely on these.
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Gov. Code 66311.5(c)(1) says an ADU of 750 sq ft of interior livable space or less owes no impact fee. The City's January 2026 Impact Fee Schedule starts its ADU multimodal and park fee tier at 750 sq ft, so ask the Building Division how it applies the state rule at exactly 750.
The City's 2026 Impact Fee Schedule gives an estimated project charge at its published $1,467 multimodal fee and $3,045 park fee for an ADU of 750-1,200 sq ft. Its July 2026 Development Impact Fees brochure also lists a proportional Measure A fee; ask the City for a project quote.
San Juan Unified's Developer Fees page supports an estimated school charge at its published $5.38 per sq ft residential rate and excludes ADUs under 750 sq ft. Gov. Code 66311.5(c)(3) separately treats an ADU or junior ADU under 500 sq ft as adding no 500 sq ft of assessable space. Confirm the charge with the district.
The City of Citrus Heights' January 2026 Impact Fee Schedule and July 2026 Development Impact Fees brochure disagree on the ADU fire-fee exemption. The Building Division must quote the estimated charge for a specific application.
Neither. It is a screening from public records, not professional advice, and not a survey, soils report, appraisal, loan offer or permit; every number is an estimate. A licensed designer confirms the final plan, and your city or county gives final approval.