The provisions of these regulations shall not apply to the following developments:
(A) Any development constructed totally upon a lot or parcel of land, recorded prior to the effective date of these regulations, that contains less than 18,500 square feet of land area, provided the development has less than 33% impervious surface area;
(B) Any single-family residential or 2-family residential development on any lot or parcel of land, which was recorded prior to the effective date of these regulations;
(C) Modification of single-family residential or 2-family residential structures which will continue to be used as single-family or 2-family dwellings;
(D) Modification of existing structures, other than a single-family dwelling or 2-family dwelling, which do not increase the amount of impervious area of the lot or parcel upon which it is constructed;
(E) Traditional agricultural land uses;
(F) Improvement of existing roadways which do not increase the number of traffic lanes in the typical cross-section of the roadway; or
(G) New development in which the total impervious area, including the area of the existing, adjacent public or private streets, is less than 20% of the total or 10,000 square feet, whichever is less.