Menkes Developments Ltd. is an award-winning, fully integrated real estate company involved in the construction, ownership and management of office, industrial, retail and residential properties. Founded in 1954, the company is one of the largest private developers in Canada, with a primary focus in the Greater Toronto Area. Menkes is known for its innovative, multi-disciplinary approach and particularly for expertise in large-scale, mixed-use development. Past projects include the Empress Walk entertainment, shopping and residential complex in North York City Centre, and two landmark projects in Toronto’s South Core district, 25 York Street (TELUS House) office tower and the two million square foot One York Street commercial retail complex. The company’s latest project Sugar Wharf is a proposed waterfront community on an 11.5 acre site in downtown Toronto, which will be anchored by a new two-acre park.

For more information, visit the Menkes website and follow Menkes on Instagram.

Accomplishments at the Building Portfolio

  • Number of Buildings Enrolled: 4 of 4
  • GHG Emissions Intensity: 2.16 kgCO₂e/sq ft²/yr
  • Total GHG Emissions: 5, 341 tCO₂e/yr

Electric Vehicle Charging Stations available at all Menkes Office Buildings

Electric vehicle charging stations are available at all Menkes office buildings.

25 York Street Holds the Highest Score for BOMA BEST Certification

25 York Street hold the highest score for BOMA Best certification at 100 per cent*

BOMA BEST certification recognizes excellence in energy and environmental management and performance in commercial real estate including these key areas:

  • Energy
  • Water
  • Air
  • Comfort
  • Health and Wellness
  • Custodial
  • Purchasing
  • Waste
  • Site
  • Stakeholder Engagement

Comprehensive 10-Year Energy Plan at 4711 Yonge

4711 Yonge implemented a 10- year energy plan that took its Energy Star* rating from 55 to 90. The Menkes office portfolio has an average Energy Star Score above 90. Energy Star score is one of the key industry standards for rating a facility’s energy performance with a range of 1-100.

Canada Green Building Council (CaGBC) LEED Green Building Certifications at 90 per cent of Menkes’ Office Portfolio

Ninety per cent of the Menkes office portfolio is LEED certified at Gold or Platinum Level. Menkes’ One York Street building achieved the Platinum Level LEED verification with the highest rating for any building in Toronto (89 points).

Fitwel Certifications at One York Street and 25 York Street

One York Street achieved the highest Fitwel* score for an office tenanted building worldwide and 25 York Street achieved the first Fitwel certification in Canada.

*Fitwel signals Menkes’ priority for wellness within the design, development, and operations of buildings and integrates strategies to optimize health within a building.

Extensive Rooftop Solar PV Systems installed across the Menkes Building Portfolio

Menkes’ portfolio of solar projects produces over 2 million kWh of electricity annually, with five buildings located in the City of Toronto. One York Street has the highest installed solar PV system in Toronto, producing over 84,000 kWh a year of renewable energy.


Disclaimer: Profiles presented are based on information provided by participants. Participants’ GHG emissions performance published are based on utility data submitted and converted to GHG emissions. The emission factors applied aligns with the period of energy data reported (2019). The emission factors utilized for the conversion are calculated based on a combination of sources: Government of Canada (National Inventory Report & Canada’s Proposed Greenhouse Gas Quantification Requirements), Government of Ontario (Guide: Greenhouse Gas Emissions Reporting), The Atmospheric Fund (A Clearer View on Ontario’s Emissions – Electricity emissions factors and guidelines) and Enbridge Gas Inc. (Chemical Composition of Natural Gas).