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7 I Infrastructure Efficiency I Same Homes, More Road <br />MODELING ASSUMPTION <br />Hold development yield at 30 detached single-family homes. Use $450,000 per home as a conservative representative <br />modeling assumption: $13.5 million total modeled residential value. Use approximately $134/1inear foot as a Ramsey rural <br />residential reconstruction benchmark derived from two Ramsey CIP precedents. <br />Street length <br />600 ft <br />1,000 ft <br />3,000 ft <br />Road ft/home <br />20 <br />33.3 <br />100 <br />Relative road <br />1.0x <br />1.67x <br />5.0x <br />Reconstruction benchmark <br />-$80,400 <br />-$134,000 <br />-$402,000 <br />SAME 30 HOMES. SAME $13.5 MILLION MODELED VALUE. FIVE TIMES THE ROAD. <br />At 600 feet, thirty homes require 20 feet of roadway per home. At 3,000 feet, the same thirty homes require 100 feet <br />per home — five times the roadway infrastructure supporting the same modeled development yield. <br />WHAT IT ESTABLISHES <br />Holding development yield constant, infrastructure per home rises directly with street length. <br />Limitation: $450,000 is a modeling assumption, not a Rum River Retreat appraisal.—$134/ft is a reconstruction benchmark, not new -road construction <br />cost. This demonstrates declining infrastructure efficiency, not guaranteed taxpayer loss. <br />Ramsey Countryside Estates reconstruction precedent <br />Ramsey Hall -Anderson / Oakwood Hills reconstruction nrecedent <br />October 13, 2026 I Ramsey cul-de-sac / dead-end street policy Page 8 <br />