Colorado Revised Statutes Title 30. Government County § 30-20-612. When assessments payable--installments

All special assessments for local improvements shall be due and payable within thirty days after the effective date of the assessing resolution without demand, but all such assessments may be paid, at the election of the owner, in installments with interest as provided in section 30-20-614. All special assessments for local improvements authorized in section 30-20-603(11.5) may be due and payable at such alternate time or times as set forth in the assessing resolution.