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attachment #4). The PSAC, staff, and the Planning and Zoning <br />Commission agree on all other aspects of the proposed <br />criteria. <br />2. **Section 2.* Based upon experience with non -conformities and <br />recent discussion at a Board of Adjustment meeting, staff is <br />proposing this amendment to the non -conformities section of <br />the LDRs. This amendment would grandfather -in, as legal, <br />those non -conforming structures which have "passed the test" <br />of previous county approvals and inspections. <br />3. **Section 3.* This amendment is proposed by staff to make <br />clearer the requirement that three specific criteria must be <br />satisfied in order to reduce the minimum PRO district size <br />from 5 acres to 2.5 acres. <br />4. **Section 4.* Staff proposes this section in order to update <br />the single-family development chapter (912) in terms of the <br />native vegetation set-aside requirement. The set-aside <br />requirement is already applied to single-family development on <br />large tracts (5 acres or larger) via Chapter 929 regulations. <br />5. **Section 5.* Planning staff proposes this section to better <br />specify required improvements that are exempted from affidavit <br />of exemption subdivision developments. This amendment <br />maintains and continues the county's local road right-of-way <br />dedication requirements that currently apply to affidavit of <br />exemption projects. <br />6. **Sections 6* and 7.* Staff proposes these sections which would <br />require the county to mail a courtesy notice to owners of <br />property adjacent to either plats to be vacated or rights-of- <br />way to be abandoned. <br />S. **Section 8.* This section is proposed by staff to better <br />reference the source of handicap parking space requirements <br />applied by the county. <br />9. **Sections 9.* and 10.* These sections are proposed by staff to <br />clarify that dead Australian pine trees that pose health and <br />safety hazards are nuisances that must be removed from private <br />property._ Although dead Australian pines have been treated as <br />nuisances in past code enforcement cases, the Assistant County <br />Attorney has suggested adding to the LDR's specific references <br />such as the ones proposed in these sections. <br />10.**Sections 11* and 12.* Staff is proposing language to <br />allow compost piles within rear yard setback areas. <br />11.**Section 13.* This section is proposed by staff and would <br />allow docks to be located in riparian sideyard setbacks where <br />such location would preserve natural resources such as <br />mangroves and grass beds. <br />12.**Section 14. In 1990, when the LDRs were comprehensively <br />updated, the open space requirement for developments within <br />the CH, Heavy Commercial zoning District, was increased from <br />15% to 25% of the site area. Open space requirements in other <br />districts are as follows: <br />MED, Medical District.............30% <br />CL, Limited Commercial............25% <br />CG, General Commercial............25% <br />CH, Heavy Commercial..............25% (20% is proposed) <br />IL, Light Industrial.... .... 4#0 ... 15% <br />IG, General Industrial...... ... ...158 <br />The open space requirement is "stepped -down" from the <br />commercial to the industrial districts. In staff's opinion, <br />the CH district has characteristics of both the CG and IWIG <br />5 <br />APR 0 8 1992 809K <br />