As the formwork was coming off the concrete of the foundation walls, “Nursery” replaced “Study” in the plan annotations for the second bedroom on the main floor of this new house in Woodinville. Construction was completed ten days after Tim and Heather's baby arrived. Both were right on schedule!
Several passersby have remarked that they thought this was a remodel of an old farmhouse. I'm flattered, since “farmhouse” was what said “home” to Tim and Heather. In plan and section however, it's really quite unlike a farmhouse.
The bend in the mostly linear plan responds to site constraints in (what I hope comes across as) an unselfconscious way, like something you'd find in an Italian hill town. (Where Tim and Heather honeymooned, during the design process.) More “Oh, hey, Carlo, we need to bend this building here or it won't fit!” than “expressing the public/private hierarchy of the house architectonically”…which, ahem, I guess it also does. The bend in combination with the topography does quite a few nice things to both the inside and outside of the house. End on, the bend conceals the length of the house, as the wing farther away disappears around the bend. Seen broadside however, from farther away on the English landscape-like site, the western side of the house is appropriately “stately”.
On another site we might have preferred to orient the house such that the long side of the house faced south (rather than west as it does here), but this orientation the site does result in the house being quite animated by the changing path of the sun during the course of a day. The high window in the south gable over the breakfast nook lets light deep into the great room, especially the low angle light of the Northwest winter.
The linear main-floor-plus-daylight-basement plan came from our desire to have all essential elements on one accessible floor. My clients plan on living in this house the rest of their lives, and we wanted to accommodate aging in a place without renovation.
The eastern, one-story side of the house is small in scale, broken up with the two lower “sheds” sided in clear finished cedar. The accessible formal entry is across a small bridge across a bio-swale. The entry is small and low, with a place for a bench to remove your shoes. As you walk in, the space opens out and down, following the topography, the view beyond framed by two of the massive cedars on the site. French doors on the landing below open onto a small terrace.
On one's right, a hall to the private wing. To the left, a single vaulted ceiling arches over the 'great room.' Inspired (in a fairly distant way) by the work of architects Bernard Maybeck and Sir John Soane, screen walls divide this space into living room, formal dining room and kitchen, partially veiling what is beyond, and providing wall space for artwork.
Walking south, to the east of the dining room and down two steps is the TV Room, designed to accommodate Movie Nights, a long-standing tradition among our clients and their friends. A 'secret room' behind the media center allows Tim, a concert sound engineer, access to equipment as well as space for a small workbench for electronic projects. The kitchen is designed to accommodate one cook or many, with a compact work triangle on the west side of the island, but lots of chopping and kvetching space on the east side. Beyond the kitchen, a breakfast nook opens on to a large deck. In the summer the table there will likely live on the deck, while the doors can all swing open. The Dutch “back door” (likely the daily entrance) leads in from the south deck to a fairly large laundry/mud room/pantry, with an adjacent dog wash. Tim and Heather foster care stray dogs.
Back at the entry, if we turn right we walk through a slightly wider than normal hallway lined with artwork. Ceilings in the private part of the house are flat, and generally lower than in the public part of the house, varying from seven feet six inches (in some transition spaces) to nine feet six inches (in the master bedroom.) On your right, through a vestibule, you'll see the guest three-quarter bath, and the nursery. A pocket door allows the bath to become an en suite with the nursery. (A left over from its Study/Guest Bedroom days during design, but something that may be useful in the future.) Continuing straight down the art hall, you reach the master bedroom suite. The bedroom was sized for a king-size bed. A French door leads to a balcony overlooking the pastoral site. The bend in the house assures that this balcony remains somewhat private. Through the walk-in closet, the master bath is compact, but has all the trimmings, including a luxurious bubble-jet tub, shower with two separately controlled heads, a separate toilet room, and long vanity with two sinks. We (Josh and I) are especially pleased with the flush medicine cabinets behind the paneling between the mirrors.
The house has many green features, none of which shout out, “Look at me!” Our clients appreciate that. We are pleased that the house functions as a green home and less concerned about whether it looks like one. (See our
green building FAQ for more of our biases on that subject.) It is a cozy, comfortable home that just happens to conserve more energy, use fewer resources, and be much healthier than the typical new home. Below, we have listed some of the features that might not be obvious at first glance.
settlement ecology
- The house was sited very carefully to preserve existing large trees and to utilize an already disturbed portion of the site.
- Measures were taken during construction to preserve and enhance the critical areas of the site: a large wetland and a small stream.
- To maintain the existing hydrology of the site, a special French drain was installed that collects water off of a portion of the roof and recharges the ground uphill from a 36” diameter cedar tree.
- All driveways, walkways and patios are made of semi-pervious materials.
- More than 60% of the site was left undisturbed.
resource conservation
- Thirty percent less wood was used than in a conventionally built home. 2x6 studs, floor joists, and roof trusses were placed 24” on center and stacked on top of each other. The roof was framed with pre-fabricated raised heel trusses with two ladder trusses along both heels. This allowed our engineers to eliminate most headers including those over the six-foot wide windows along the west wall. Called ‘advanced framing,’ ‘stack framing,’ or Optimum Value Engineering, this technique is not only resource-efficient and less expensive, it is more energy efficient because there is a higher proportion of insulation to wood in the wall.
- Forty-two houses are being advanced framed because of this house. Andy Herrick of Sliderule Engineering brought Bob Neimann of Specialized Homes and Chris Welch and Lee Sims of Macfarlane Homes out to visit the house during framing. Following the visit, each was sufficiently convinced by the efficiency of the system to employ the advanced framing techniques at two new housing developments—Bob at Issaquah Highlands, and Chris and Lee at Serramonte in Kent. At 25% wood saved per each of forty-two houses, you might say we saved all the wood used in this house ten times over.
- A good portion of the wood used in the project was Forest Stewardship Council (FSC) certified:
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- Structural Framing - 90% FSC. This includes all studs, 75% of plate stock, ceiling joists and miscellaneous framing lumber. Excludes trusses and TJI’s.
- Plywood - 75% FSC. This includes all wall and roof sheathing. Excludes 1-1/8” floor sheathing.
- Decking IPE - 100% FSC.
- Brazilian Cherry - 50% mix of FSC materials. (100% FSC ordered didn't make it on the boat from Brazil.
- Exterior Trim - Not FSC but 100% finger-jointed material.
- Reclaimed fir was used for the mantelpiece and the handrail of the stair.
- The concrete mix design replaced 35% of the Portland cement with fly ash.
- Durability was enhanced with a rain-screen wall. Sophisticated flashing and sealing create a long-lasting, weather-proof exterior envelope.
- 80% of the existing double-wide on the site was recycled.
energy conservation
- A very sophisticated, 94% efficient heating system includes a Polaris integrated heat and hot water boiler and separate fan coil units.
- Insulation levels and window U-values exceed energy code by 17%.
- A blower door test objectively confirmed the efficacy of the many air tightening techniques employed.
a healthier life
- With a baby on the way, indoor air quality was paramount. Wall paints, cabinet finishes, and floor finishes were all low-toxic.
- There is no carpeting in the house; only hard surfaces, including hardwood, slate, and real linoleum.
- The heat recovery ventilator includes a HEPA filter and the heating system has a near-HEPA filter. Both reduce dust, pollen, and animal dander in the house.
future-proofing
- Gutters were routed to one corner of the house and ports through the foundation wall were created to run piping for rainwater collection and reuse.
- Conduit to the roof was installed for future photovoltaic panels.
- Conduit for technical wiring (computer cabling, speaker wire) was run throughout the house.
- Plumbing was roughed in for a basement bath, and for adding a toilet and sink in the dog wash area.
- Site planning included a future detached garage as well as schematic design of the landscaping.
process
- A collaborative atmosphere was engendered by the shared environmental goals of all involved; consultants, contractor and sub-contractors were encouraged to bring ideas forward to improve the project, and did.
- Stack framing techniques were introduced to the contractor’s framing crew in an afternoon workshop at our office followed by the crew building a trial corner of wall on site. As a result of the crew’s efforts, this house is the best implementation of stack framing on any of our projects to date. The contractor provided the owner with an “Owners’ Manual” for the house.
- Tim and Heather have a blog which (among other things) documented the progress of the project through both design and construction. Click here to read it.
Owners: Tim and Heather Harding
design
RHA Project Team: Rob Harrison AIA, Jonas Weber, Valerie Wersinger, Kevin Reed, Lipika Chakrabati
Structural Engineering: SlideRule Engineering Works
Mechanical Engineering: Pressler Engineering
Landscape Architect: Linnea Ferrell
Envelope Advice: David Rousseau, Archemy Ltd.
Geotechnical Engineering: GeoSpectrum
Wetland Delineation: The Watershed Company
Septic Review: D. R. Strong
Rainwater Collection Advice: Purrain
Photovoltaic/Solar Hot Water Advice: Puget Sound Solar
Photos: Rob Harrison
construction
General Contractor: Phoenix Construction, Inc. George Piano and Josh Piano, job supers.
Phoenix Crew: John Lahmen, Nathan Moss, Ramon Perez, James Dounis, Bill Henrian and Jermy Polino.
Excavation and Sitework: Nelson Layman Trucking and Excavation
Concrete: Dochnahl Construction, Inc.
Roofing: Star Roofing
Electrical: Home Technologies, Inc.
Plumbing: McDonald Plumbing LLC
HVAC: Nelson Heating
Painting: Integrity Finishing, Inc.
Cabinets: Custom Commercial Cabinets
Hardwood Floors: Lane Hardwood Floors, Inc.
Marmoleum and Plastic Laminate: Traditional Floors, Inc.
Tile Installation: Wilson Tile
Silestone Counters: Western Tile and Marble
Sprinkler System: Wolfe Fire and Plumbing
Septic System: The Stuth Co.
Blower Door Test: Atmosphere
Waste & Recycling: Waste Management Inc.
suppliers
Lumber: North City Lumber
FSC Lumber: Dunn Lumber
Reclaimed Fir: Duluth Timber, sourced by Western Pacific
Appliances: Monarch Supply
Concrete: Cadman Prefabricated Trusses: Tri-County Trusses Windows and Doors: The Window and Door Shoppe
Fireplace: Fireside, Inc.
Bath Tile: United Tile Kitchen Backsplash Tile: Ann Sacks Tile & Stone Light Fixtures: Lamps Plus