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Improvement Plan
A. Purpose.
1. The improvement plan procedure provides a mechanism for the review and approval of technical drawings associated with approved developments and to ensure compliance with this Code and the City's Engineering Standards.
B. Applicability.
1. This Section applies to developments that have received approval of a site plan (Section 405.160: Site Plan) or preliminary plat pursuant (Section 405.120: Preliminary Plat) and that propose the construction of public improvements.
2. Applications are subject to the common procedures identified in Article II: Common Procedures unless otherwise modified in Subsection (C). In the event of conflict between the common procedures contained in Article II: Common Procedures and the application-specific procedures and requirements contained in this Section, the application-specific procedures and requirements in this Section shall govern.
C. Procedure.
1. Summary.
2. Application Submission And Handling.
a. The application shall be submitted to the Department of Public Works and handled in accordance with Section 405.040: Application Submission And Handling and the following modification:
3. Staff Review And Action.
a. The Public Works Director shall review the application and act to approve or deny the application in accordance with Section 405.050: Staff Review And Action and the criteria listed in Subsection (C)(3)(b).
b. Review Criteria. An improvement plan shall be reviewed according to the following criteria:
(1) Required infrastructure and utility improvements have been approved by the appropriate agency;
(2) It complies with all applicable standards in this Code, including Chapter 430: Subdivision and Improvement Standards;
(3) It complies with the City's Engineering Standards, including Title V Appendix A: Engineering and Plan Preparation Manual for Public Facilities;
(4) It complies with other applicable City standards and policies; and
(5) It complies with requirements and conditions of approval for any prior approvals.
D. Post-Decision Actions And Limitations.
1. The post-decision actions and limitations in Section 405.080: Post-Decision Actions And Limitations shall apply with the following modifications:
a. Effect Of Approval. Approval shall authorize the subsequent submittal of an application for building permit or other site disturbance permits.
b. Required Improvements And Guarantees.
(1) Grading.
(a) Prior to the issuance of a grading permit (Section 540.031: Permits — Exceptions), the applicant shall submit a construction financial guarantee in accordance with Chapter 430: Subdivision and Improvement Standards, Article IX: Required Improvements And Guarantees, Required Improvements and Guarantees.
(b) The financial guarantee shall be in an amount equal to the cost of all grading activities and erosion control measures.
(2) Subdivision Improvements.
(a) Prior to recording the record plat with St. Charles County, the applicant shall complete or guarantee the completion of required improvements and guarantee maintenance of such improvements in accordance with Chapter 430: Subdivision and Improvement Standards, Article IX: Required Improvements And Guarantees, Required Improvements and Guarantees.
(3) Site Improvements.
(a) Prior to the issuance of a building permit for any multi-unit, mixed-use, or nonresidential development, the applicant shall submit a construction financial guarantee in accordance with Chapter 430: Subdivision and Improvement Standards, Article IX: Required Improvements And Guarantees.
(b) The financial guarantee shall be in an amount equal to the cost of all site improvements, including parking lots, lighting, stormwater detention/retention, landscaping, construction debris cleanup and building board-up cost.
(c) The required construction financial guarantee may be waived by the Public Works Director in instances where the site improvements are considered to be relatively minor.
c. Expiration Of Approval. An improvement plan approval shall expire one (1) year after the date of final approval unless the use or construction is substantially underway, as determined by the Public Works Director, or an extension is granted by the Public Works Director pursuant to Section 405.080: Post-Decision Actions And Limitations.

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Application Materials
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Summary Table of Application Procedures

Table 405.010, Summary Table of Application Procedures, lists the applications authorized by this Chapter and application-specific requirements from Articles III through VIII for preapplication meetings, public hearing notice, review and decision-making bodies, and expiration of approval. The table also lists cross references to related applications authorized by and subject to requirements of other chapters of the Municipal Code.

In the event of conflict between the application-specific procedures in Articles III through VIII and the requirements summarized in Table 405.010, Summary Table of Application Procedures, the application-specific procedures and requirements in Articles III through VIII shall govern.