Agenda - 11-16-1993 - VIII-B (2)

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ATTACHMENT #4 9 IMPERVIOUS SURFACE CALCULATION TEMPLATE Version 1.11.91 Planning& Inspections Department— Orange County, NC ;PROJECT DATA:: . Applicant Name: ONE—ACRE LOT — WI 40,000 SQ FT OUTSIDE RIGHT—OF—WAY Location: — W/TWO—STORY HOUSE CENTERED ON LOT Tax Map Reference: LOT DATA: IMPERVIOUS SURFACE DATA:. Width (Ft) 150 Maximum Impervious Surface Ratio (ISR): 12% Frontage (Ft): 150 Maximum Impervious Surface Area(SqFt): 5250 Depth (Ft) 290 Area (SqFt): 43750 BUILDING DATA.:.:. Area (Acres) 1.00 Number of Stories: 1 Front Setback 120 ROAD DATA Total Floor Area 2200 Class: Public First Floor Area 1100 Width (Ft) 20 UTILITY STRUCTURES/USES ? DRIVEWAY DATA. ... Length Width Area Length (Ft): 135 Structure/Use (Ft) (Ft) (SqFt) Width (Ft) 8 Garage 0 0 0 Storage 12 10 120 Utility 0 0 0 Porch 15 6 90 Sidewalk 40 4 160 Patio/Deck 0 0 0 PooliTennis 0 0 0 Other 0 0 0 Other 0 0 0 Total 370 IMPERVIOUS SURFACE CHARACTERISTICS} . Structural Coverage Driveway Road Parcel 1/2 Size Building Utility Total Length Width Area Frontage Width Area (SqFt) (SqFt) (SqFt) (SqFt) (Ft) (Ft) (SqFt) (Ft) (Ft) (SqFt) 43750 1100 370 1470 135 8 1080 150 10 1500 CAL CULATION RESULTS, .... ._ . Impervous Surface(SqFt): 4050 Exceeds Maximum ISR: ( 0 )Yes = 1 %Impervious Surface: 9.26% No = 0 Variance from Required ISR: 2.74% OR 1200.0 SqFt Minimum Lot Size Required to Comply: 0.77 Acres OR 33750 SqFt NOTES: (1)Utility structures but may be attached to the main building but are calculated separately. (2)Driveway length includes parking/back—up area plus property line—to—road pavement distance. (3) Open,wooden decks are not counted as impervious surfaces. (4)Lot area includes one—half of 50—foot right—of—way.