Chapter 3.2 LANDSCAPING, STREET TREES, FENCES AND WALLS Revised This chapter is included in your selections. Sections: 3.2.100 Purpose. 3.2.200 Landscape Conservation. Revised 3.2.300 New Landscaping. Revised 3.2.400 Street Trees. Revised 3.2.500 Fences and Retaining Walls.