Fees & public finance
Special assessment district
A benefit-based levy on parcels in a district to finance improvements that specially benefit them — lien-secured and sized by an engineer's report.
Definition
A special assessment is a charge on parcels within a district to pay for improvements — streets, sewers, lighting, undergrounding — that confer a special benefit on those parcels, classically financed through 1913 Act proceedings with 1915 Act bonds and secured by a lien. Proposition 218 (1996) constitutionalized the discipline: an engineer's report must apportion the assessment to the special benefit each parcel receives, and affected owners vote in a weighted ballot. That benefit requirement is the key contrast with Mello-Roos special taxes, which need no benefit showing but face a two-thirds or landowner election.
Why it matters in an underwrite
Assessments surface as direct levies on the property-tax bill and diligence like debt: confirm each district's remaining term, annual installment, and prepayment mechanics from the engineer's report and bond documents, because 1915 Act delinquencies feed foreclosure like CFD taxes do. When totaling the parcel's burden for effective-tax-rate testing, count every layer — ad valorem, special taxes, and assessments — since lenders and buyers price the sum, not the labels.
Sources & related guides
See also
See the term in the law itself
Read the controlling text in the Code Library, or ask the AI how it applies to your project.
Last reviewed 2026-07-29. General information, not legal advice.