A. 
Recognition of natural resource features. This chapter recognizes that landforms, parcel size and shape, and natural resource features vary from site to site, and that development regulations must take into account these variations. The maximum density or intensity of use allowed in any zoning district is controlled by the various district standards set forth for each of the various zoning districts of this chapter.
B. 
When site intensity and capacity calculations are required. The site intensity and capacity calculations set forth in this article shall be made for each parcel of land to be used or built upon in the Town of Barton, including all new residential developments, all nonresidential development, and as may be required elsewhere in this chapter.
C. 
Exclusions (when site intensity and capacity calculations are not required). The site intensity and capacity calculations set forth in this article shall not be required for the construction of single-family and two-family residential development located within existing lots of record, existing platted subdivisions (with an approved final plat), existing approved certified survey maps, and approved condominiums existing at the time of the adoption of this chapter.
The base site area shall be calculated as indicated in Table 3A, included at the end of this chapter, for each parcel of land to be used or built upon in the Town of Barton as referenced in § 500-60 of this chapter.
All land area with those natural resource features as described in Article XV of this chapter and as listed in Table 3B, included at the end of this chapter, and lying within the base site area (as defined in § 500-61) shall be measured relative to each natural resource feature present. The actual land area encompassed by each type of resource is then entered into the column of Table 3B titled "Acres of Land in Resource Feature." The acreage of each natural resource feature shall be multiplied by its respective natural resource protection standard (to be selected from Table 500-109 of this chapter for applicable agriculture, residential, or nonresidential zoning district) to determine the amount of resource protection land area required to be kept in open space in order to protect the resource or feature. The sum total of all resource protection land on the site equals the total resource protection land. The total resource protection land shall be calculated as indicated in Table 3B.
In order to determine the maximum number of dwelling units which may be permitted on a parcel of land zoned in a residential zoning district, the site intensity and capacity calculations set forth in Table 3C, included at the end of this chapter, shall be performed.
In order to determine the maximum floor area which may be permitted on a parcel of land zoned in a nonresidential zoning district, the site intensity and capacity calculations set forth in Table 3D, included at the end of this chapter, shall be performed.