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Planning and Sustainability

Innovation. Collaboration. Practical Solutions.

Phone: 503-823-7700

Curbside Hotline: 503-823-7202

1900 SW 4th Ave, Suite 7100, Portland, OR 97201

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Costs and Benefits

Quantification of the benefits of Cavenaugh’s reductionist approach is difficult because it requires adding hypothetical features and systems typical of similarly sized and programmed buildings. The vision resulting from his attempt to rethink building design and operation did not include superfluous materials or systems. Rather, it called for a comprehensive, informed, and well thought out design process that reduced the amount of effort needed to operate the building. The value is therefore realized in the things that he did not do, which resulted in design and construction costs of $72 cost per square foot.

Energy
The integrated system, program, and site design yielded a building that operates 41% more efficiently than ASHRAE/IESNA Standard 90.1-1999.

Stormwater
All stormwater is managed on-site thus eliminating the site’s strain on the municipal stormwater system. The infiltration system also promotes ground water recharge, which is directly tied to in-stream river flow and quantity and quality of aquatic habitat. Approximately 14,000 gallons of rainwater will infiltrate the site annually.

C&D Waste Recycling
98% of construction and demolition waste was diverted from landfills. The general contractor estimates that this amounted to roughly 20 yards of material and this saved approximately $1,000 in tipping fees.

LEED
Ode to Roses anticipates earning a LEED Silver rating.

Costs
  • Energy Star®- compliant roofing: $2-3/sf incremental cost; ~ $12,000 total incremental cost
  • 98% efficient air to air heat pumps and ducting: $18,000 (roughly 5% more than 80% efficient gas model)
  • Alternative Fuel Station: $800
  • Green Tags: $65/month incremental cost for 2 years
  • Carbon dioxide control exhaust system: $4-5000
  • LEED documentation and tracking: ~ $7,000
  • LEED energy modeling: $3,000
  • LEED fundamental systems commissioning: $2,500
  • ASHRAE standard 55 engineering study: $2,000
Incentive Funding
G/Rated LEED Grant: $20,000