Thornhill Sustainability

Our office is certified LEED® CI Gold

As a leader at incorporating sustainability at all levels of development – from city planning to transportation to buildings – MMM Group designed its Thornhill office with green strategies in mind. Using in-house expertise, MMM Group achieved LEED CI Gold for this office to demonstrate how ensuring environmental responsibility and creating a comfortable, modern office can work seamlessly together.

Click on the topics below to read more about why we qualified for LEED CI Gold

  • Sustainability_office_Thornhill_CaGBC_plaque_gold_2013LEED (Leadership in Energy and Environmental Design) is the premier green building rating system in North America. Overseen here by the non-profit Canada Green Building Council, LEED awards points to projects that meet certain sustainability requirements in the following categories: Sustainable Sites, Water Efficiency, Energy & Atmosphere, Materials & Resources, Indoor Environmental Quality, Innovation & Design.
    The number of points a project receives determines the LEED level awarded: Certified, Silver, Gold, Platinum. The LEED CI (Commercial Interiors) rating system is specifically designed for office fit-ups in tenanted buildings, such as this office which occupies two floors of a five-storey building.

    Project Management and LEED Consulting:
    MMM Group Limited


  • Sustainability_office_Thornhill_Materials_Small_SidebarImagesMaking sustainable choices when it comes to materials can reduce the harvesting of virgin materials, decrease carbon emissions, and reduce waste. In this office, every effort was made to select such materials during the design and construction process. For example, we mitigated the amount of carpeting used through the widespread use of concrete floors.

    Sustainability_office_Thornhill_Materials_recycled-materials1Recycled Materials: In this office, 21% of materials contain high levels of recycled content. This includes chairs, workstations, insulation, dry wall, and steel studs.



    Sustainability_office_Thornhill_Materials_local-services Regional Materials: Over one-half of materials used in this fit-up are from local sources. This not only supports the local economy, but decreases the carbon emissions associated with transporting materials to the construction site.



    Sustainability_office_Thornhill_Materials_reused-materials Reused Materials: About 65% of the building was reused – such as walls, ceilings, and floors – in the renovation of this space.



    Sustainability_office_Thornhill_Materials_construction-waste-diversion_r2 Construction Waste Diversion: During construction, waste was carefully separated into separate bins so that recyclable materials could be sent to recycling facilities. As a result, 80% of waste was diverted from the landfill.


  • Sustainability_office_Thornhill_ComfortableSpace_Small_SidebarImages2Green offices aren’t just better for the environment, but for the people that work there, too. Indoor air quality, ventilation effectiveness, and access to natural light are all areas addressed by LEED.


    Sustainability_office_Thornhill_ComfortableSpace_daylightingdaylightingDaylighting: Access to natural daylight has been shown to improve worker health and productivity. All partitions in this office are 42” or lower. This allows more natural daylight penetration. In fact, 90% of all occupied spaces in this office have access to views to the outdoors.

    Low-Off-Gassing Products: Volatile organic compounds (VOCs) are found in many common construction and office fit-up products, such as furniture, paint, and flooring. However, unhealthy VOCs off-gas from these products – harming indoor air quality. All materials used at this office are “low-VOC.” This includes paints, sealants, adhesives, coatings, wood products, laminates, and carpet.

    Green Housekeeping: This office, and the entire building, has a green housekeeping program in which EcoLogo and healthy cleaners are used to maintain superior indoor air quality.    

  • Sustainability_office_Thornhill_SmartEnergy_Small_SidebarImages3 Lighting is one of the major energy users in most offices, and decreasing the lighting power density of a space is one of the main ways to achieve points under the LEED for Commercial Interiors green building rating system. Lighting power density refers to the amount of energy (in Watts) used for lighting in a given floor area (usually expressed in square metres).

    Sustainability_office_Thornhill_SmartEnergy_smart-about-energy The lighting power density of this office is 7.5 W/m2– 36% less than that of a conventional office. This was achieved through replacing existing, inefficient fixtures with T8s (high-efficiency lighting ballasts), and through the use of daylighting and occupancy sensors which dim or turn off lights when possible.

  • Sustainability_office_Thornhill_WaterWise_water-use-reductions Thousands of litres of treated, potable water are wasted every year in offices due to inefficient toilets and urinals. During the retrofit of this office space, all toilets and urinals were replaced with low-flow fixtures that use less water. This helped create a 36% water use reduction over a conventional office.