Is LEED Certification Worth It for Your Home?

She also realized the house would need renovations to meet the family’s needs, “so we began talking with LEED consultants to see what could be done.” The family sorted through various options, including renovating and another alternative that included tearing down the house but keeping the foundation. In the end, the family decided to build new, making the new home “as environmentally friendly as possible.” The result is the family’s LEED Platinum-certified home, a pioneering work of sustainable design and construction.

Passive House vs. LEED

The next-door neighbor had designed the original home. Because a large part of the property was restricted to remain an open amenity area, with restrictions on how close construction could occur next to the property line, the house had high diagonal volumes in the back.

Martel considered Passive House construction. A management consultant and project manager, Martel has advised on LEED and other government energy efficiency programs and operations and managed sustainability audits. Moreover, she’d supervised the family’s other home renovations in the past. “I’m always looking for the most environmentally-friendly option,” she says. “I like researching to see what’s out there. [There’s] so much coming up these days regarding new sustainable technologies and new ways of thinking. I’m quite passionate about sustainability.”

She found the LEED process, however, more encompassing than the Passive House methodology. “Passive House also would have been more complicated because of the footprint we were allotted,” she adds. Moreover, she realized LEED “would help guarantee the workmanship because there are checkpoints along the way.

“Our builder, The Lake Partnership, was amazing,” she continues, “They care about the work they do and are safety conscious. I didn’t necessarily need the verification that LEED provides. But for other homeowners not so familiar with their builder, that LEED verification process can offer extra peace of mind.”

Working with her LEED consultant and an architect at Linebox, Martel outlined her main goals: To take full advantage of the location and its views, make sure the design of the house fit into the existing neighborhood, ensure there was a lovely open plan and space for the grand piano, and fulfill the family’s sustainability goals.

No Stone Unturned 

The home was completed in February 2018. It has one level at the front, “to make sure it’s not a massive presence on the street and fits into the neighborhood,” Martel says, with the house opening up to two levels at the back. They sited the home to use natural ventilation that works with prevailing wind directions and passive solar heating. A four-season lounge opens up to a deck and pool, a deck fire pit beyond bi-fold doors, and a roof deck with a hot tub and stunning river views.

Outdoor Sustainable Design

The landscaping includes limited drought-tolerant turf, native and drought-tolerant plants, and a diatomaceous earth barrier for non-toxic pest control. The property installed light-colored hardscape and roofing to reduce heat island effects. The house has a green roof, and 95 percent of surfaces are permeable (incorporating plantings and permeable paving.) Rainwater is harvested outdoors for irrigation, resulting in a 75 percent reduction in overall irrigation demand than a baseline case.

Conscious Product Selection

The home utilized FSC lumber for all framing, sheathing, doors, trim, and millwork. Brick, cement, doors, pavers, millwork, and the triple pane Energy Star windows came from local producers and manufacturers. Much of the decking, millwork, brick, and tiles included recycled content.

LED lighting was installed throughout the home. Low-VOC emission paints, coatings, wallpaper, and high R-value insulation were also used. They installed a greywater system for indoor water. High-performance, water-efficient, dual flush toilets, and WaterSense certified faucets and showerheads reduce water use. All appliances are Energy Star certified; the induction stove is energy efficient.

Heating, Cooling, and Ventilation

The energy systems include a cold climate, air-source heat pump, an ERV, and skylights with venting. The home utilizes an efficient domestic hot water tank and hot water recovery system. 

As a result of all these measures, the home produces “65 percent fewer greenhouse gases than similar-sized homes built to minimum building code requirements,” Martel says.

The family splurged on river oak flooring fabricated from 350-year-old oaks preserved in the Ottawa River for 200 years inside the home. They chose a wood bar table constructed from ash wood cut down during an emerald ash borer infestation. The family opted not to include a fireplace to comply with best practice combustion venting measures. The ERV system provides enhanced outdoor air ventilation and assists in managing humidity. Bathroom fans have timers. “The house has been verified for good air filtering, radon protection, contaminant control, and garage pollution protection,” Martel says.

Before the demolition of the former house, the family donated $17,500 in doors, windows, appliances, cabinetry, and hardware to Habitat for Humanity. During demolition, they were able to divert 90 percent of the construction waste from landfills for recycling. “Our sustainability goals included making sure we weren’t leaving any stones unturned,” Martel says. “We looked at all options, including the financial aspects.”

Will Solar Come Next?

Even though the family uses an electric car, has an electric vehicle charging station in the garage, and has an all-electric house, they opted out of solar power. “It didn’t make financial sense at the time,” Martel says, “but we’re revisiting it now. The home is solar-ready (i.e., we have conduits that were wired in to connect to solar panels, should we decide to install these at a future time). Instead, we decided to invest in the local renewable energy co-op (OREC), as well as Bullfrog Power our home.” (Bullfrog Power offers homeowners the ability to sign up for “green” energy—powered by wind or water. Packages start at $21.25 per month to offset 850-kilowatt hours and support the development of new, community-based projects across Canada.) 

The family is installing energy monitors “to keep track of what we thought we’d use, and what we’re using,” Martel adds. Nevertheless, in March, the family received notification that their home had achieved LEED platinum certification.

“We’re so happy with our decision to build a sustainable home here,” Martel says.