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1) Habitable roams are rooms designed and used for living, <br /> sleeping, eating, cooking, or combinations thereof. <br /> Bathrooms, toilet compartments, closets, halls, storage <br /> rooms, laundry and utility spaces, basement recreation <br /> rooms, and similar areas are not considered habitable <br /> rooms <br /> 2) Primary windows are principal windows in habitable <br /> rooms except bedrooms and kitchens, <br /> 3) Primary walls are walls containing primary windows <br /> and/or main exterior entrances to individual living <br /> quarters when directly facing the primary wall or <br /> other living quarters. <br /> 4) Secondary windows are windows of habitable rooms <br /> other than primary windows, as defined above. <br /> 5) Secondary walls are walls containing only secondary, <br /> or secondary and tertiary, windows. <br /> 6) Teritary windows are windows other than for habitable <br /> rooms, <br /> 7) Tertiary walls are windowless walls or walls containing <br /> only tertiary windows. <br /> j) Formulas determining minimum open space requirements <br /> adjacent to walls. <br /> Minimum distance from walls to lot lines or building <br /> site lines for buildings or portions of buildings <br /> containing living quarters shall be computed as follows <br /> where D is depth in feet, L is length in feet, and S is <br /> height in stories: <br /> 1) primary walls: D = 6 + 25 + L/10. <br /> 2) Secondary walls:' D = 2 + S + L/10. <br /> 3) tertiary walls: only as required for fixed, ground-level <br /> yards, or as required for fire protection by building <br /> or other applicable codes. <br /> k) Special requirements and modifications concerning courts. <br /> 1) outer courts. <br /> a) width of outer courts, bounded on three sides by building <br /> walls or potential building walls, shall be not less than <br /> the sum of the required yard distances measured from op- <br /> posing building walls. <br /> 6-13 <br />