Platinum House (LEED Platinum certified)

Designed to Make a Difference

The entire house is oriented to capture sun and shade and designed to passively heat and cool itself. The home also has a wide range of features to increase energy productivity including geothermal heat, photovoltaic energy collection, solar hot water, thermal massing and heat-recovery technologies. Additional key features include: two 1,500-gallon rainwater collection cisterns, radiant floor heating, site-milled wood trim, triple-glazed windows and a vegetated roof.

A large east-west “spine” forms a central thermal mass core for the house. This massive wall reduces temperature swings and is oriented in conjunction with operable skylights to take advantage of cooling techniques. In addition, this wall sets up a division between private and public spaces. To the north, the private portion of the house is much more enclosed. To the south, the glassy public spaces have abundant natural light and views. To the east, the water side of the house, windows and doors open to allow the naturally cool breezes from the Sound to temper the interior spaces.

Coates also created spaces with multiple functions in order to achieve a smaller overall footprint. For example, the washer and dryer and clothing storage are built into the master bathroom casework and there’s an office tucked into a corner of the media room. The home’s roof became a vegetated garden patio providing a place to relax – and greater insulation. There are also sliding and bi-folding doors that transform smaller rooms into larger gathering spaces that can be easily connected to the outdoors. “Every room in the house serves at least two functions, and usually four or five,” said Coates.

Coates’ commitment to going green paid off: the 2,500 sf home uses 70% less energy than a typical comparably-sized home.

LEEDing the Way

The Ellis’ home shows that sustainability and a love of modern design aren’t mutually exclusive. “We wanted to prove that modern, gracious residential design could encompass local environmental concerns and state- of-the-art energy efficiency,” said Joanne Ellis. “Matthew and his team far exceeded our goals.”

The home serves as a model and educational tool for future sustainable residential projects. During construction and after they moved in, the Ellis’ hosted open houses to inspire others to embrace sustainability. Coates is a sought-after speaker and lecturer and the Ellis’ often join him to relate their experiences to a wider audience. “It became obvious early on that Joanne and Ed wanted to do more than just build green,” Coates recalled. “They are active role models for sustainable living.”

The Ellis’ are proud that their home raises the bar for environmental commitment in design and construction, but more importantly they hope it will inspire others to embrace sustainability in their own homes – and lives.

ellis entry
Ideabooks14,872
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This image captures the main entry to the home. All of the wood used for the bench on the left came from one large tree that was on-site. It was milled on-site and kiln-dried locally. A lot of this wood was also used on the inside as finish trim... so the tree never really left the site! Also in this image are LED lights and an off-the-shelf ground-face masonry block that i...More
“i can do that entry” — petertrost
Ellis Residence - exterior
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“metal siding is cool” — jenj7
Ellis Residence - exterior
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“Cool” — ohfortuitous1
Ellis Residence - exterior
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“Nice colour combo” — Jacqui Wall
Ellis Residence - Living room
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“windows and doors ceiling treatment height” — jonnamcc
“Windows” — jennifereckle
“cabinets and windows” — winlsw
Ellis Residence (LEED Platinum certified)
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The windows above the staircase allow sunlight to warm the thermal mass CMU wall during the winter months. photo credit: Lara Swimmer
“ζεστό ξύλο και ψυχρό πλακάκι, ωραίος συνδυασμός” — liana510
Ellis Residence - green roof
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This image showcases a rooftop garden with hardwood decking and concrete pavers that define a seating area.
“horizontal cable for back yard” — mgallant22
Ellis Residence - master bathroom
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“nice feel” — Mary Baldridge
Ellis Residence - master bathroom
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“Wood paneling. Hella-long countertops for days” — grantatl
Ellis Residence - master bathroom
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This image features a Japanese soaking tub, or "ofuro." Ofuro tubs are deeper in comparison to the western bathtub, with sides that are square rather than sloped or rounded. The lights are compact fluorescent, and all of the wood paneling is Forestry Stewardship Council (FSC) certified. The countertop is recycled quartz.
“View incorporation” — Kathy Stewart
Ellis Residence - master bathroom
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Ofuro handcrafted tub
“Dreamy” — Yolanda Erickson
Ellis Residence - master bathroom
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“rug” — cateharty
Ellis Residence - Kitchen
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“Caesarstone Lago Blue” — natsyd
“masonry interior” — robertslopez
LEED Platinum Ellis Residence
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“chaleureuse et originale” — 28081961
LEED Platinum Ellis Residence
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“Siding” — ohfortuitous1
LEED Platinum Ellis Residence
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“metal on this house is cool” — jenj7
LEED Platinum Ellis Residence
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“Siding” — worldspectator
Ellis Residence (LEED Platinum certified)
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Art Grice
“silver color wall - laminated plates” — juancfigueroa0916
Ellis Residence (LEED Platinum certified)
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Art Grice
“roof deck and windows below” — beth
Ellis Residence (LEED Platinum certified)
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“Anchor/float could be great garden light” — ellyatt
Ellis Residence (LEED Platinum certified)
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Art Grice
“This but with angled roof?” — luis711
Ellis Residence (LEED Platinum certified)
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Art Grice
“B” — hels101
Ellis Residence (LEED Platinum certified)
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Art Grice
“materials contrast” — Rick Hendricks
Ellis Residence (LEED Platinum certified)
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Art Grice
“detail, large downspouts” — pbyar
Ellis Residence (LEED Platinum certified)
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“Same architects” — emcculloch
Ellis Residence (LEED Platinum certified)
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Art Grice
“This looks pretty nice, but a bit outside my budget!” — helainehonig
Ellis Residence (LEED Platinum certified)
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“Designer style” — knnewman
Ellis Residence (LEED Platinum certified)
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Art Grice
“terrasse et bardage” — ouizit
Ellis Residence (LEED Platinum certified)
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Art Grice
“Uses the natural setting as the decor.” — curlygirl52
Ellis Residence (LEED Platinum certified)
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Art Grice
“Wood, metal, concrete conex” — Alexandria James
Ellis Residence (LEED Platinum certified)
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Art Grice
“Front door entrance” — romanjude
Ellis Residence (LEED Platinum certified)
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“Idea for garage” — Dorraine Budke
Ellis Residence (LEED Platinum certified)
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Art Grice
“Textured block looks gd with linear cedar panels” — ellyatt
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