Scott Subaru – Car Dealership

  • by Stephen Quinn
  • /
  • 2021-03-26 14:45:32
  • /
  • International
  • /
  • 183 / EN

New Construction

  • Building Type : Other commercial buildings
  • Construction Year : 2017
  • Delivery year : 2019
  • Address 1 - street : 6863 50 Ave T4N 4E2 RED DEER, Canada
  • Climate zone : [Dfb] Humid Continental Mild Summer, Wet All Year

  • Net Floor Area : 1 542 m2

Certifications :

  • Primary energy need :
    144 kWhpe/m2.year
    (Calculation method : Other )
Energy consumption
Economical buildingBuilding
< 50A
A
51 à 90B
B
91 à 150C
C
151 à 230D
D
231 à 330E
E
331 à 450F
F
> 450G
G
Energy-intensive building

The world’s first certified Passive House Car Dealership was developed by a car dealership-family with an eye on long-term value. The owner sought a low impact building that would support his growing business. He readily admits that he’s not an avid environmentalist but recognizes the myriad benefits of constructing to the Passive House Building Standard. However, a key requirement was that any decisions made in pursuit of Passive House certification were not permitted to compromise customer or vehicle service in any way.   

The intent was not only to reduce the energy consumption of the building but also to greatly increase the comfort and health for all occupants of the building, staff and customers alike. One of the main driving concepts was to create a building that would serve as an example of what is possible and encourage the wider market to adapt to constructing to the Passive House standard.  

The harsh climatic conditions, site characteristics, and strict client requirements proved extremely challenging, demanding tremendous efforts from the entire design and construction team. 

See more details about this project

 https://passivehouse-database.org/index.php?lang=en#d_6210

Data reliability

3rd part certified

Photo credit

Scott Subaru

Contractor

    Black Creek Developments Inc.

    https://blackcreekdevelopments.com/project-inquiries

Construction Manager

    Black Creek Developments Inc.

Stakeholders

    Company

    Scott Subaru

Owner approach of sustainability

The world’s first certified Passive House Car Dealership was developed by a car dealership-family with an eye on long-term value. The owner sought a low impact building that would support his growing business. He readily admits that he’s not an avid environmentalist but recognizes the myriad benefits of constructing to the Passive House Building Standard. However, a key requirement was that any decisions made in pursuit of Passive House certification were not permitted to compromise customer or vehicle service in any way.   

The intent was not only to reduce the energy consumption of the building but also to greatly increase the comfort and health for all occupants of the building, staff and customers alike. One of the main driving concepts was to create a building that would serve as an example of what is possible and encourage the wider market to adapt to constructing to the Passive House standard.  

Architectural description

The building placement and orientation were fixed by corporate design guidelines, creating a substantial challenge due to the large west facing showroom glazing and limited south facing glazing. With these parameters set, the team explored how passive and active design strategies could be effectively implemented.

Due to high wind loads on site, the use of external shading common on Passive House projects was ruled out.  All other high impact solutions were analysed and deemed infeasible, so the team settled on automated, internal shades combined with optimised glazing.

The large glass façade in the showroom ensures ample daylight for the showroom occupants. The office spaces have been designed with internal glazing to the showroom to allow the daylight to extend to these internal spaces. 76% of the occupied floor area is within 7m of an operable window. The high performance, automated internal blinds are lowered if the sun is overheating the building and raised when appropriate.  This ensures maximum daylight and reduces the energy consumption of the lighting system, which is 8 kWh/m2/yr. 

Building airtightness associated with accessibility was another challange. Through design optimisation, the number of overhead doors was reduced, with the remaining doors sourced with great care to ensure required airtightness standards were met.

Energy consumption

  • 144,00 kWhpe/m2.year
  • 400,00 kWhpe/m2.year
  • Other

  • 144,00 kWhfe/m2.year
  • Space Heating demand: 11KWh/m2.a
    Space Cooling demand: 4KWh/m2.a
    Lighting demand: 8KWh/m2.a
    PHPP standard

    The Passive House envelope and ventilation systems ensure minimal heat loss from the building and deliver unparallel levels of occupant comfort. The internal heat gains and passive solar gains provide the majority of the building’s heating requirements. The remainder is provided through efficient ducted split-unit air source heat pumps. The small demand for hot water in the showroom/office space is provided by a CO2-based heat pump. The car wash bay requires considerably more DHW at a high flowrate, requiring an on-demand gas water heater. To reduce gas demand, the team collaborated with a drain water heat recovery system manufacturer to develop a custom unit. To further conserve energy, the all LED lighting system has integrated motion detectors throughout the building, ensuring areas are only lit when in use. The building’s projected annual energy demand is an impressive 69KWh/m2, which directly lowers pollution in a province with a high carbon electricity grid. All services except the car wash are electric. In a natural gas shortage, car washing could be completed using cold water. Should the power grid go down, the Passive House envelope ensures the building will never freeze.

Envelope performance

  • 0,08 W.m-2.K-1
  • The wall and roof assemblies are of timber construction and insulated with cellulose, deviating from the steel frame construction of typical car dealerships. Cellulose insulation provides several environmental benefits including reduction of solid waste and conservation of fuel due to its low embodied energy. Cellulose insulation consists of 80% or more post-consumer recycled wastepaper, which makes it one of the highest recycled content insulation materials on the market. More generally, the Passive House envelope ensures a highly durable, long-life building.

    EN 13829 - n50 » (en 1/h-1)

  • 0,40

Systems

Construction and exploitation costs

    The stakeholders do not wish to display the costs of this building.

Urban environment

The site was chosen due to its proximity to the old car dealership this building was replacing. The site has ample parking spaces and is close to a main highway. The site is also reachable using public transit links with a bus stop within walking distance.

This building is the first of its kind to be certified to the rigorous International Passive House Standard. Not only will the stronger building construction last longer than a traditional dealership, but the energy-efficient features are expected to reduce the building’s heating and cooling demand by 90 per cent. 

The project combines an unprecedented set of challenges: strict corporate design guidelines; non-negotiable client requirements (Passive House could not compromise customer or vehicle service in any way); worst case solar exposure (highly glazed West façade); building airtightness associated with accessibility (overhead doors) for vehicles; and the demanding ventilation requirements associated with the service wing of the building. 

Addressing this unique combination of challenges while delivering unparalleled comfort and air quality in a car dealership defines a truly ground-breaking project that places it in a league of its own. It is a beacon project that demonstrates what is possible for future car dealerships around the world. 

Contest categories

Energy & Temperate Climates

Energy & Temperate Climates

Green Solutions Awards 2020-2021

 Cover Architectural Collaborative Inc.
 908 Engineering
 Peel Passive House Consulting
 Passive House Institute
 Lex 3 Engineering
 Black Creek Developm
 energy efficiency
 health and comfort

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