drainage courses either on -site or downstream, including, but not limited to, <br /> erosion, scouring, turbidity, or transport of sediment due to increased peak flows <br /> or velocity. <br /> (11) Lots proposed for development with one - family detached dwellings shall <br /> comply with EC 9.2790 Solar Lot Standards (these standards may be modified <br /> as set foith in subsection (12) below). <br /> (12) The PUD complies with all applicable development standards lici l a <br /> addressed in the application except where the applicant has shown <br /> modification is consistent with the purposes as set out in EC 9.8300 Purpose of <br /> Planned Unit Development. <br /> (13) For any PUD located within or partially within the boundaries of the South Hills <br /> Study, the following additional approval criteria apply: <br /> (a) No development shall occur on land above an elevation of 900 feet except <br /> that one dwelling may be built on any lot in existence as of [effective date <br /> of this ordinance to be inserted later]. <br /> (b) Development shall be setback at least 300 feet from the ridgeline unless <br /> there is a determination by the city manager that the area is not needed as a <br /> connection to the city's ridgeline trail system. For purposes of this <br /> section, the ridgeline trail shall be considered as the line indicated as being <br /> the urban growth boundary within the South Hills Study plan area <br /> (c) Development shall cluster buildings in an arrangement that results in at <br /> least 40% of the development site being retained in 3 or fewer contiguous <br /> common open space areas. For purposes of this section, the term <br /> contiguous open space means open space that is uninterrupted by <br /> buildings, structures, streets, or other improvements. <br /> (d) Residential density is limited as follows: <br /> 1. In the area west of Friendly Street, the maximum level of new <br /> development per gross acre shall be 8 units per acre. <br /> 2. In the area east of Friendly Street, the maximum level of new <br /> development per gross acre shall be limited to 5 units per acre. <br /> 3. Housing developed as Controlled Income and Rent Housing shall be <br /> exempt from the density limitations in subsections 1 and 2 above, but <br /> are subject to the other applicable development standards and review <br /> procedures. <br /> 9.8330 Site Alteration. Unless specifically permitted by the hearings official, vegetation, <br /> topography, and other natural features of areas proposed for a PUD shall not be <br /> substantially altered until final PUD approval, and then only as authorized by the final <br /> PUD approval. "Substantially altered" includes, but is not limited to, site grading and <br /> removal of trees or other vegetation. If a subdivision is required, site alteration shall <br /> not be permitted until after tentative subdivision approval is granted. <br /> Ordinance - 360 <br />