The Challenge To design, market and construct a single family home product with a secondary suite that is: At an attainable level of affordability for

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1 The Muskoka k Attainable Passive House Challenge Mineral Springs Estates, Huntsville (416) greg.knight@sympatico.ca

2 The Challenge To design, market and construct a single family home product with a secondary suite that is: At an attainable level of affordability for the current Muskoka market; and Built to the rigorous Passive House standards for construction

3 at tain a ble ATTAINABLE HOUSING is defined by the District of Muskoka, quite simply, as housing that is Adequate in condition; Appropriate in size (enough bedrooms for the size and makeup of the household); Affordable (costing less than 30% of before tax income); and Accessible (located in areas where common services and activities are available).

4 pas sive sive house Originating in Germany ( passivhaus ), there are now more than 25,000 passive structures in the world Passive House is the world's leading standard in energy efficient construction. Energy saved in heating can be up to 85% compared to conventional building standards. These savings are reached without compromising comfort, but rather increasing it. The Passive House results in significant reductions in energy needs and carbon emissions. To be distinguished from passive solar or passive energy homes

5 pas sive sive house The primary objective is to minimize heat loss by optimizing the thermal performance of the building envelope. This is accomplished lihd with: ih Super-insulation Airtightness High performance windows Incorporating very high efficiency heat recovery ventilation Minimizing thermal bridges

6 Why Build Passive Houses that t are Attainable Attainable? While there are obvious social reasons for building attainable housing, we prefer to highlight the economically driven principles, i as these are more likely to foster a sustainable, profitable business model. That said, why build passive houses at the attainable price point? A large and growing market: There is a significant and increasing shortfall of attainable housing in Muskoka. Provided we can meet the challenge, herein lies the opportunity

7 Why Build Passive Houses that t are Attainable Attainable? Profitability in high volume, low margin markets create larger opportunities in higher margin markets: Constructing passive house quality homes that are attainable requires the utmost of economic efficiency in design and construction.. If we are able to operate profitably at attainable price levels, we can be increasingly competitive in higher end, higher margin price points as well. Starting in a higher volume market creates more awareness of the product at an early stage. By forcing ourselves to participate in the low cost market, we must focus our design efforts to create a passive house is not necessarily more expensive than traditional construction

8 Why Build Passive Houses that t are Attainable Attainable? Home heating costs are a significant proportion of overall housing costs and so a reduction in heating costs increases affordability As heating costs continue to escalate, passive homes will become increasingly valuable relative to other homes Passive House standards limit space heat demand to 15 kwh/m2 /y year = 1532kWh / year for home 836kWh / year for secondary suite

9 Monthly Hydro One Billing: Billing Item Total $ Electricity Usage (@ 198 kwh $0.075/kWh) 075/kWh) Delivery Min. approx $ Regulatory Charges Approx 8% of usage 1.21 Debt Retirement Approx 8% of usage 1.21 HST 6.15 Ontario Clean Energy Less 10% (5.34) Benefit Total Monthly Charges $48.08

10 Concept Plan Still at design stage, but incorporating the following characteristics: 1200 sq ft three bedroom one bath unit with 300 sq ft kitchen / great room public area on main level and 900 sq ft 3 bedroom, den and bathroom on second level 600 sq ft one floor two bedroom one bath unit on main floor with opened concept living/dining/kitchen

11 Concept Plans Technical building specifications Block wall foundation system 24 floor space cavity with blown in insulation i (R80) 24 exterior wall cavities with blown in insulation (R72) Raised heel trusses to provide R100 ceiling insulation Virtually no thermal bridging Fire separation and insulation between principal unit and secondary suite High efficiency HRV system Electric resistance heating

12 Attainable Passive House Challenge: Next Steps May-June 2012 Community feedback from: Community members and government leaders Potential tenants, purchasers and investors Building material suppliers and subtrades Structural and HVAC engineers Building department personnel

13 Attainable Passive House Challenge: Next Steps June July 2012 Finalization of building permit application drawings Sales and marketing for end user purchasers, investor purchasers and tenants

14 Attainable Passive House Challenge: Next Steps July - October 2012 Site preparation and construction of prototype home in the Mineral Springs Estates subdivision Project monitoring, process and design improvements

15 Attainable Passive House Challenge: Next Steps October 2012 May 2013 Occupancy of 10 further homes Performance monitoring Further exploration of expansion opportunities Building site identification throughout Muskoka Design consultation for export Pre fabrication for export????

16 Queries and Requested Feedback For sales to end users, do we want first time homebuyers as landlords? Is this something the community wants and, if so, what government incentives are available to assist? How does this fit into the DMM and lower tier municipal DC waiver and permit fee waiver programs? For rentals, are DC waivers available? Is there value in meeting PH standards or do we adopt The Pretty Good House Other Thoughts and Comments

17 Useful Passive House Links Passive Buildings Canada Canadian Passive House Institute h / Passive House E Design Website / US Habitat for Humanity Presentation /Tuesday/8E-2_Passive%20House.pdf Mineral Springs Estates Subdivision, Huntsville