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e e e feet be allowed. This leeway is used by Portland and is a reasonable allow- ance based on experience. This 15 square feet would allow for that much shade on the south exposure of the building or property. It was the consensus of the council to include the leeway of 15 square feet beyond the solar setback standard. Ms. Bascom asked, on behalf of Mr. Miller, if a change could be made. Mr. Hansen clarified that Mr. Miller would prefer a four-foot base on the south wall instead of a two-foot base, which would be less restrictive. Mr. Tumidaj said that this lessening of protection would decrease the effec- tiveness of the code by ten percent. After discussion, it was agreed to leave the base at two feet. Mr. Obie asked for an explanation of the 26-foot solar fence in commercial and industrial districts. Mr. Tumidaj replied that the solar fence determines how much shade is allowed by neighboring buildings. The goal in industrial and commercial districts is to protect solar access to the roof tops, not the walls. Mr. Obie asked Ms. Brody to clarify this issue, referring to the City's encouragement of high density and discouragement of urban sprawl. He was concerned that this code would subvert that policy. Ms. Brody explained that the solar access standards cannot override the basic allowance for density in the zoning ordinance. Mr. Reed clarified that even though the 26-foot solar fence is lenient, there will probably be some problems with builders. Mr. Holmer asked about the new building on 11th Avenue, and Mr. Tumidaj said that that C-3 area is not subject to the solar setback standards. There was also concern expressed about the new building at 19th and Willamette and whether the code would have affected its design. Mr. Hansen felt that restrictions on existing property are a concern and asked if owners of several buildings could block their own property. Ms. Bascom pointed out that the code would not prevent the building, but may alter the design. Mr. Obie requested that the staff investigate the effect of the code on recent industrial and commercial developments and report back to the council. Part 2, Solar Design Standards for New Subdivisions and PUD's, was reviewed by Mr. Tumidaj. He explained that the new provisions are less restrictive than the existing provisions. Mr. Hansen asked for a relationship between the noon hour on December 21 and on March 21 or September 21. Mr. Tumidaj said that on March 21 and September 21 there wouldn't be a standard; that nothing would be protected. The December 21 standard protects about 85 percent on the average over the entire heating season, between mid-September and mid-March. Mr. Hansen asked what percentage of solar energy could be received in the period from December 21 to March 21 or from September 21 to December 21. Mr. Tumidaj said that it would be 10 to 15 percent. Mr. Holmer clarified that the standard protects the available amount of solar energy. Mr. Tumidaj continued the review of Part 2 and defined the prescriptive and performance paths of compliance with the standard, and explained the exemp- tions. He clarified that the ordinance does not affect mature trees. Mr. Hansen commented that trees are often planted to protect privacy and, MINUTES--Eugene City Council May 27, 1986 Page 2