DiamondCorp Team

Steve Diamond is the Founder and Chief Executive Officer of DiamondCorp, a Toronto-based real estate development company that manages more than $2 billion in real estate assets in the GTA. He has established a reputation for creating value for investors while delivering well-designed, innovative residential and mixed-use developments.

He received an LLB from Western University in 1976 and was called to the bar in 1978. Prior to the creation of DiamondCorp, he was a partner at the law firm McCarthy Tétrault, where he was head of the municipal law and planning group and served on the firm’s board of directors.

In 2019, Steve was appointed jointly by all three levels of government as Chair of Waterfront Toronto.  He is the Director of Whitecastle Investments Ltd. and has also generously served with many community organizations, including Sunnybrook Hospital, The Partnership to Advance Youth Employment (PAYE), Save a Child’s Heart, United Jewish Appeal Federation, Baycrest, Vice-Chair of Liquor Control Board of Ontario, Toronto Region Board of Trade, Mount Sinai, Black North Housing Committee & Toronto Metropolitan University.

A visionary industry leader, Steve was selected as the 2022 Building Industry and Land Development Association’s (BILD) Lifetime Achievement recipient.

Ty Diamond is Director of Investments at DiamondCorp and its joint-venture subsidiary Diamond Kilmer Developments. Having joined the organization in 2017, Ty is responsible for financial and strategic evaluation of both acquisitions and active development projects. In this role, Ty manages transaction due diligence, deal structuring and negotiations, pro forma analysis, and project financing, all with a focus toward creating value through the land development process.

Madison joined DiamondCorp in 2016 and is responsible for leading new site acquisitions.  In her role, Madison identifies and reviews prospective land acquisition opportunities through deal sourcing, due diligence and financial underwriting.  Madison is also responsible for negotiating and implementing transaction and partnership agreements.  She also provides continued financial oversight through the rezoning and development process.

David joined DiamondCorp in 2019 as Chief Financial Officer and is accountable for financial strategy, planning and reporting, investor relations, legal and compliance.

Prior to DiamondCorp, David was a member of BMO Capital Markets real estate investment banking team and has over 12 years of investment banking experience. David was involved with numerous financings and mergers and acquisitions for a broad range of clients. David worked on more than $30 billion of transactions.
David holds an Honours Business Administration from the Richard Ivey School of Business at the University of Western Ontario and is also a CFA Charterholder.

Kate joined DiamondCorp in 2012. As Vice President of Development, she is responsible for managing all aspects of the municipal approvals process including large-scale, multi-phase, mixed-use developments with significant city building attributes. In her 13 years in the development industry, she has secured over 8 million square feet of redevelopment in Toronto and the GTA. Most recently, she secured approvals for Brightwater, a 72 acre, 4.5 million square foot master planned community on Lake Ontario in Port Credit, Mississauga.

From 2013-2020, Kate sat on the Homes First Foundation Board where she was a member of the Real Estate Portfolio Committee and Chair of the Events Committee. Kate holds a Masters of Science in Planning from the University of Toronto and a B.A. (Hons) from Queen’s University. Kate is a Registered Professional Planner (RPP) and a Full Member of the Canadian Institute of Planners.

Caitlin has a diverse background in land use planning and development and is involved in several residential and mixed-use projects at DiamondCorp. Her work focuses on securing municipal approvals for complex, large-scale projects in the City of Toronto. Her core responsibilities include expediting and negotiating all planning approvals, including Official Plan and Zoning By-law Amendments, Site Plan Control, Minor Variance and Consents, Building Permit issuance, and Condominium Registration. Caitlin brings to the team expertise in managing design and consultant teams, negotiating with City Staff, collaborating with resident and community groups, and liaising with key stakeholders, partners and investors.

Daniela joined DiamondCorp and its joint-venture subsidiary Diamond Kilmer Developments in 2021. Her responsibilities include providing key insights into the current market and consumer trends. She began her career in high-rise condominium development in 2004 and has held senior positions with companies in the GTA and Dubai.

Daniela brings with her a breadth of industry experience having worked on the client, sales, and creative agency sides, giving her a fulsome perspective of the residential new construction process.

Lauren Tollstam is a Director of Development with DiamondCorp and is responsible for over 4.4 million square feet of mixed-use and residential development within the City of Toronto. She works on all stages of the development approval process including Official Plan Amendments, Zoning-By-law Amendments, Plans of Subdivisions, Part Lot Control Exemptions, Minor Variances and Site Plan Applications. ​Lauren is adept at managing multiple teams of project consultants, negotiating project approvals and agreements with municipal staff, and working with stakeholder groups.

Lauren’s experience focuses on land use planning, project management, mixed-use and multi-building development projects, and community consultation. ​

Kelly joined DiamondCorp in 2017 as a Development Planner and is now involved in several residential and mixed-use projects. Her scope of work includes assisting in the submission and processing of development applications, including official plan amendment, zoning by-law amendment, minor variance applications and site plan control applications as well as completing property research with respect to applicable planning framework for potential acquisitions. Kelly also monitors relevant municipal, provincial, and federal policy changes related to the industry to inform ongoing development projects and potential acquisitions.

As a Development Planner at DiamondCorp, Emily is involved with a number of residential and mixed-use projects, engaging in various planning and development tasks. Emily’s work focuses on assisting in the approvals process of development applications, monitoring municipal planning and policy initiatives throughout the GTA, and completing property research for potential site acquisitions.

Michelle has 12 years of progressive planning experience in Toronto, including several years leading complex municipal land development applications and studies, interdisciplinary teams, and community consultation. As a member of DiamondCorp’s development team, Michelle coordinates and manages consultant teams and land development applications through the municipal planning approval process.

As a Development Associate, Sue supports moving a number of mixed-use and residential projects through the development application process. She also conducts due diligence for prospective site acquisitions including property, planning policy, and market research.

Michelle joined DiamondCorp in 2021 as Assistant Controller. Prior to DiamondCorp, Michelle was the Manager of Corporate Accounting at Burgundy Asset Management Ltd. and has 10+ years of accounting experience. As Assistant Controller, Michelle is responsible for preparing financial reporting and reviewing the accounting functions.