08-19-1996 Planning Packet - Laserfiche WebLink

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#2166 - Janet Kieman August 14, 1996 Page 4 Garage Addition The proposed addition to the garage results in a structure that, on the plans, has a 49’x20.4' footprint or 999.6 s.f. Applicant's hardco\er calculations indicate the garage at 1,029 s.f. The garage must be kept less than 1,000 s.f. to not be considered an oversized accessory structure. Above 1.000 s.f, it is subject to a 50' street setback and a 30' side setback, neither of which it could meet. Assuming the garage is under 1.000 s.f, it still needs to meet a 15' south side setback (side setback as proposed is approximately 18') and a 15' street setback. The existing garage is 21.0' from the street, but extending its west wall northward, the garage extends near the right-of-wav. and would be 10.7' from the street lot line at its northw est comer. This places the nothwest comer of the garage nearly to the edge of the perceived shoulder of Co. Rd. 15. In order to meet the required 15' setback, the garage addition would have to be offset to the east, or could be reduced to one additional stall instead of tw o. Note: The entire existing/proposed garage is within property noted on County plat maps as "unknown parcel". The surveyor indicates that the propert)^ owner likely needs to proceed with some t>pe of judicial action to have this parcel added to the legal description. Until this occurs, the city has no assurance that the existing/proposed garage is within applicants property. Dennis Hill at the Hennepin County Property Descriptions Office has indicated they have no record of such action pending. Septic System Analysis This house is part of the Bracketts Point "hotspot" neighborhood which has petitioned for installation of municipal sew er as soon as possible. Assuming the City is successful in its currently proposed MUSA boundarv amendment, it is not impossible that municipal sewer could be provided to this property through a project that could occur in 1997. However, such project has not yet been ordered nor designed, and municipal sewer is therefore not yet "guaranteed" to this property. The existing septic system was reconstructed in 1982 and consists of a lift station discharging to two septic tanks and a 600 s.f drainfield located uphill north of the house. The drainfield was sized in 1982 by guesstimating a 1-15 minute per inch perc rate based on the soil textures encountered at the site. Technically, this would require a drainfield sized at a range of 0.83 to 1.27 s.f of drainfield bottom area per gallon per day. At an average requirement of 1.05 s.f per gallon per day, the system likely can handle no more than 570 gallons per day and may be slightly undersized for a four bedroom house. On the other hand, if actual perc rate is in the 1-5 mpi range, requiring only 0.83 s.f of trench per gallon per day, the system might handle up to 722 gpd or almost a 5 bedroom home.