Denizen Development Group - Holgate Townhomes

Vital Stats
Location: Seattle
Star Level: 4-Star
Checklist: Single-Family Townhouse
Verifier: Evergreen Certified
Site and Water124
Energy Efficiency103
Indoor Air Quality111
Material Efficiency75
Total Score471.9

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Tucked away between Rainier Avenue S and Martin Luther King Jr. Way S sits a new 28-townhome Denizen Development site in the Atlantic neighborhood of Seattle. Centrally located near the I-90 entrance, the Holgate townhomes offer affordability and convenience while maintaining high construction standards. 

Surrounding a central driveway of pavers and concrete, and containing drought-tolerant and native landscaping and bio-retention planters, the units were built with homeowner comfort in mind. With averaging blower door scores of around 2.25ACH50, R-60 and R-23 ceilings, and wall insulation values, ductless heat pumps for space heating, high-efficiency gas tankless water heaters, ENERGY STAR appliances, and LED and CFL lighting, the Holgate Townhomes boast of energy efficiency. Beyond the energy savings, the units are all equipped with low-flow plumbing fixtures to reduce potable water use.

A mixture of metal, HardiePanel siding, and lap siding clad the exterior with splashes of bright yellow, green, blue, and red paint over a full exterior rainscreen detail and commercial-grade housewrap. The rooftop decks are equipped with bamboo composite decking, and the units with garages contain motion-sensor exhaust fans and are pre-wired for electric car chargers. The interior includes a mixture of polished concrete floors, pre-finished engineered laminate flooring, and carpet-all with third-party indoor air quality certifications.

Currently, 13 of the 28 townhouses have been certified, while the remainder are finishing up construction.

Built Green highlights include: 

Site and Water

  • Low-flow plumbing fixtures
  • Drought-tolerant landscaping; no turf grass

Energy Efficiency

  • Energy consumption reduced by 25-plus percent compared to code
  • Commercial-grade VaproShield housewrap
  • Ductless distribution heat source
  • ENERGY STAR Appliances
  • LED and CFL lighting
  • Prewired for future solar PV; car charger in the garage

Health and Indoor Air Quality

  • Rainscreen drainage plane beneath the siding
  • Motion-sensor garage exhaust fan
  • Low-VOC paints and adhesives
  • Kitchen exhaust fans limited to 300 CFM

Materials Efficiency

  • Extensive use of local and long life cycle materials
  • Polished concrete ground floor
  • Laminate flooring certified for indoor air quality
  • All insulation contains 40-plus percent recycled content

Still Images

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    Use pervious surfaces to reduce rainwater runoff