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PZC Packet 090589i P Town of Avon Design Review Report: South Harbor Development Company Lot 6, Block 1, Eaglebend Subdivision Date: August 10, 1989 Introduction: The applicant South Harbor Development Company wishes to construct on Lot 6, Block 4, Eaglebend Subdivision a duplex residential structure. This lot has special circumstances. 40% of the site is located within the 30 foot riverfront setback. It include the water course of the Eagle River from bank t� bank. Portions of the riparian habitat has been clear cut and striped from the site area. Special provisions should be considered which prevents the removal of native riparian vegetation on this or adjacent sites. According to information on the application and accompanying exhibits, the proposed structure has a building footprint of 2,530 Square Feet contained in a wood framed structure. Average height appears to be within estimated height limitations of 35 feet. The site plan indicates that disturbed areas of land will be revegetated with sod. 1008 of the useable open space will be disturbed. An estimated 51% of the useable open space is covered by permeable surface. The structure has wood siding, with a field stone veneer foundation. 60% of the site will be disturbed. Type of existing vegetation is not indicated in sufficient detail. The building, deck and driveway coverage of the site is approximately 51% of the site. The useable open space area is not indicated on site plan. Main drainage channel for the site is located in the driveway. Driveway grade is not shown. Drainage channels and flow directions are not shown on the exhibits. l . FAR Town of Avon Design Review Report: South Harbor Development Company Lot 6, Block 1, Eaglebend Subdivision Page Two Staff Comments: Before acting the Commission shall consider the following items in reviewing the design of a proposed project: 6.11 The conformance with the zoning Code and other applicable rules and regulations of the Town of Avon. Comment: The project appears to meet most applicable rules and regulations of the Town of Avon. Unusual conditions occur on the site. The location of the structure will cause the demise of several mature willow trees. Rear setback should be calculated from 30" high water setback. 6.12 The suitability of the improvement, including type and quality of materials of which it is to be constructed and the site upon which it is to be located. Comment: The type and quality materials are compatible with the existing structure in the vicinity. 6.13 The compatibility of the design to minimize site impacts to adjacent properties. Comment: The maximized building footprint will cause damage to riparian habitat. Drainage from parking lot should not be allowed to enter riparian habitat unfiltered. 6.14: The compatibility of proposed improvements with site topography. Comment: The alteration of topography and removal of vegetation may be excessive. Disturbed areas should be reduced. 6.15 The visual appearance of any proposed improvement as viewed from adjacent and neighboring properties and public ways. Comment: The visual appearance of the residence does not appear to pose any deleterious effects from adjacent and neighboring properties and public ways. The color of the structure was not available for review. n Town of Avon Design Review Report: South Harbor Development Company Lot 6, Block 1, Eaglebend Subdivision Page Three 6.16 The objective that no improvement be so similar or dissimilar to others in the vicinity that values, monetary or aesthetic will be impaired. Comment: The improvement is residential in nature an, is dissimilar to others in the vicinity. Monetary and aesthetic values may be impaired. Excessive disturbance and use of the riparian habitat will cause long term irreparable damage. 6.17 The general conformance of the proposed improvements with the adopted Goals, Policies and Programs for the Town of Avon. Comment: The proposal is in general conformance with adopted Goals, Policies and Programs for the Town of Avon, except for the proper use and protection of the riparian habitat of the Eagle River. The need effect of improper treatment of the riparian habitat will increase stream bank erosion and contribute to a diminished water quality standards. Staff Recommendations: An appropriately sized culvert be located in drainage channel at the beginning of the driveway. Consolidation of site disturbance areas should be considered. Consolidation will reduce the disturbed area of the site. structure should be setback from root systems of trees located in riparian habitat. Heavy icing of driveway will result from using the driveway as a primary drainage channel. The applicant has not submitted materials or exterior color samples for review. The applicant has not indicated method of irrigation. Suitability of vegetation material for local climate cannot be determine. Revegetation material for disturbed areas having a slope of more than a slope of 2:1 cannot be determined. Method of maintaining revegetated areas is not indicated. Accuracy of statistical information and dimensions cannot not be verified from exhibits provided for review. Ext(-^ior Lighting: Noted. Town cf Avon Design Review Report: South Harbor Development Company Lot 6, Block 1, Eaglebend Subdivision Page Four_ Trash Storage: Not Shown Location of Easements: Not Shown Location of existing vegetation and Rock Outcropping: Not Shown Drainage: Not Shown Ramp grades: Not Shown Existing plant materials to be removed and retained: Not Shown PLANNING AND ZONING ACTION Approved as submitted ( ) Approved with recommended conditions ( ) App,oved with modified conditions ( ) Continued ( ) Denied ( ) Withdrawn r l i Date_—Denise Hill, Secretary At the applicant's request, this application was continued to the next Planning and Zoning Commission meeting.