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
Flooring:
- 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
Water:
- 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
Finishers:
- Zero VOC paint for all interiors
- Low VOC sealer on all interior trim and doors
Siding:
- Fiber-cement siding
- Rain screen system (allows air flow behind siding)
Landscape:
- 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
Other:
- 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
Cully Grove 