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A. Except as provided in subsection (D) of this section, an application under WMC 16.12.010 or 16.16.040 shall include a site plan conforming to the requirements of this section. If changes to the site plan that are submitted with an application are required as conditions of the approval of the application, the applicant shall submit a revised site plan that incorporates the required changes before the application is approved. The approved site plan shall be part of the approved application, and development under the approved application shall conform to the approved site plan.

B. A site plan shall be prepared and stamped by an architect, professional engineer or land surveyor, authorized to engage in that profession by the state of Alaska, except that a site plan for a single-family dwelling or a duplex may be prepared by a residential design specialist holding a National Council of Building Design Certification (NCBDC).

C. A site plan shall be prepared legibly in ink or pencil on one or more paper, mylar or vellum sheets with dimensions of eight and one-half by 11 inches or 11 by 14 inches. In no case may an adulterated copy of an as-built drawing be used as a site plan. All sheets that are submitted as part of a site plan shall have the same dimensions. A site plan shall be prepared in a standard English engineering scale of one inch equals 50 feet or less. At a minimum, a site plan shall show all of the following items:

1. A title block showing the legal description, street address of the property, the property owner’s name and address, the name and address and firm name of the person who prepared the plan, and the scale of the plan.

2. A true north arrow.

3. All property corners will be described. For undeveloped property, all property corners will be located or reset by a registered land surveyor. Record and found lot dimensions will be shown on the site plan, and certified by a registered land surveyor.

4. All easements of record, including any easements or rights-of-way of record that do not appear on the recorded plat for the property, but which would be identified in a title report.

5. All setbacks required under WMC 16.24.030.

6. The location and dimensions of existing and proposed utility facilities, on-site water and wastewater facilities and fuel storage facilities.

7. The location of all lakes, streams and potential wetlands within 100 feet of any portion of on-site wastewater treatment facilities or within 75 feet of any existing or proposed structure.

8. The location and horizontal dimensions, expressed to the nearest tenth of a foot, of all existing and proposed permanent structures, and all temporary structures with over 120 square feet of floor area, adequate to determine the distances from each such structure to the nearest lot lines.

9. The location of all existing and proposed vehicular access points.

10. The location and dimensions of existing and proposed parking, with any calculations necessary to show that the parking requirements of WMC 16.24.040 have been met, and, where more than 10 parking spaces are provided, the location and dimensions of trash facilities and snow storage areas.

11. The parking lot lighting layout, including manufacturer’s catalog cut sheet if more than three fixtures are to be installed.

12. Existing and proposed pedestrian and vehicular access and on-site circulation improvements, including roadways, driving aisles, sidewalks, trails, paths, curbs and gutters, catch basins and culverts.

13. Drainage patterns will be identified by relative assumed datum, spot elevations at the property corners and at the area of the proposed new construction. Drainage arrows will be shown to demonstrate existing and proposed runoff. It is the developer’s responsibility to minimize runoff from parking areas into public streets, adjoining lots or wetlands, streams or lakes.

14. A site plan, other than for a single-family dwelling and accessory uses on a lot containing no more than one dwelling unit, or for a use located within the Wasilla Municipal Airport, shall include a landscape plan showing the following:

a. The location and dimensions of each landscaped area, describing the type and quantity of landscaping that will be placed in each landscaped area, showing the areas where native vegetation will be either removed or retained, and complying with the requirements of WMC Chapter 16.33;

b. The areas of the site that are to be excavated or filled, the proposed finished grades and contours, drainage directions and any control structures to be installed.

D. No site plan is required with an application where:

1. The application provides only for the construction of an addition to an existing residential structure, the city planner determines that a site plan is not necessary for the review of the application, a previous unaltered as-built survey of the site prepared by a registered land surveyor demonstrating that the addition will meet all setback requirements that apply to the site in WMC 16.24.030 and will not encroach into any easements of record, and the applicant provides an affidavit signed by the applicant stating that:

a. All property corners have been located; and

b. The applicant is aware of all setback requirements that apply to the site under WMC 16.24.030, and the applicant agrees to bear the cost of removing any improvements that encroach within a required setback area.

2. The application provides only for the construction of a new detached residential accessory structure that is not larger than 500 square feet gross floor area, the city planner determines that a site plan is not necessary for the review of the application, a previous unaltered as-built survey of the site prepared by a registered land surveyor demonstrating that the addition will meet all setback requirements that apply to the site under WMC 16.24.030 and subsection (D)(2)(c) of this section, and will not encroach into any easements of record, and the applicant provides an affidavit signed by the applicant stating that:

a. All property corners have been located;

b. The applicant is aware of all setback requirements that apply to the site under WMC 16.24.030 and subsection (D)(2)(c) of this section, and the applicant agrees to bear the cost of removing any structures that encroach within a required setback area; and

c. The proposed residential accessory structure must be a minimum of 15 feet from the side lot lines.

3. The commission waives the site plan requirement for the application after considering the recommendations of the public works director and city planner.

E. After the completion of a structure with more than 120 square feet of gross floor area, the property owner shall submit to the city planner an as-built survey of the site of the structure, prepared by a registered land surveyor. A new as-built survey will not be required for construction consisting entirely of an addition to an existing residential structure, an addition to a detached residential accessory structure, or a new detached residential accessory structure no greater than 500 square feet of gross floor area. (Ord. 17-16(AM) § 2, 2017; Ord. 06-47(AM) § 4, 2006; Ord. 04-34 § 2, 2004)