Green Features and Unit Amenities

Most homes are attached (giving less exterior surface to heat and cool)

Heating systems:

  • In-floor radiant heat in 14 homes
    • Hot water system in lightweight concrete
    • Whole ground floor and upstairs bathrooms
    • Water heated by tankless, on-demand water heaters
  • Mini-split heat pump in 2 homes and common house

Renewable Energy Systems:

  • Solar hot water for all homes
  • Photovoltaic (PV) systems for all homes
  • Air Quality: whole house heat recovery ventilators (HRVs) heat incoming air with outgoing air

Insulation well beyond code:

  • R-31 in walls – blown-in fiberglass fills stud spaces better than batts
  • R-49 in attic – cellulose with plywood decking over for attic storage

Wall details:

  • Double 2×4 studs in 2×8 walls provide thermal break
  • Advanced framing – 24″ stud spacing uses less wood and allows more insulation in wall cavity
  • Spray foam insulation fills all cracks


  • Tile or stone entries
  • Marmoleum baths and common house flooring
  • Engineered oak on first floors over in-floor radiant heat; solid oak above

Durable materials:

  • 40 year white roofing on the homes reflects summer sun
  • Green ecoroofs roofs on carports
  • Metal roofs on common buildings


  • Homes are on city water with sub-meters for each unit to provide feedback on usage
  • Yards and gardens use water from on-site well

Appliances meet or exceed Energy Start standards

Homes exceed High Performance Home standards

Full basements in 11 of the 16 homes, providing minimal heating/cooling load for 1/3 more living space on the same footprint


  • Zero VOC paint for all interiors
  • Low VOC sealer on all interior trim and doors


  • Fiber-cement siding
  • Rain screen system (allows air flow behind siding)


  • Layout and construction preserved many existing trees
  • Meandering sidewalks along street frontage preserves mature deodar cedar tree
  • Substantial garden areas
  • Fruit trees and berry vines – many salvaged and/or grown in-house
  • Retaining walls from boulders excavated on site
  • Storm water swale for runoff from driveway/parking area


  • Shared storage for garden equipment
  • Shared indoor bicycle storage
  • Shared workshop space
  • Parking spaces deeded separately from units (buy only what you need)
  • Parking spaces prepped for electric vehicle charging stations
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