John “Luke” Williams



Luke founded Oak Tree Development, LLC to invest in commercial real estate that transforms communities in a positive way. He is responsible for managing the overall strategy of the Company, including capital formation, investments and asset management.

Under Luke’s guidance, Oak Tree has invested in projects from New England to the Midwest as a developer, sponsor and syndicate partner. While the Company’s portfolio includes ground-up development projects, value-add investments and stable, income-producing properties, Luke’s mission with each investment is to design and create places that connect inhabitants with each other and with the places themselves.  Luke believes the quality of design, goods, services and amenities is key to the success of a community, and that investments taking heed of that principle insure their own success.

Luke brings to Oak Tree prior experience serving as Chairman and CEO of Total Tree Care, a second generation, full-service tree company, and as President of Arbor Energy, a full-service heating and cooling company. Both companies are ranked highly by Inc. 5000 and the Better Business Bureau, reflecting Luke’s attention to detail and service.

Luke graduated from the University of Connecticut and holds multiple licenses and certificates within his industries. He is also active in local philanthropic and community organizations, especially the Legacy Theater in Stony Creek, Connecticut.



  • Broad business management dealing with the oversight of sales, marketing, finance, and operations (20+ years)
  • Experience with state DEEP, Consumer Affairs, and Office of Attorney General
  • Property management and real estate investment
  • Principal in both Calcagni Real Estate and CW Commercial Real Estate
  • VP and manager of The Trailviews Foundation

Education and Licensure


  • University of Rouen, France, 1984-1985
  • University of Connecticut, 1987
  • Licensed Arborist, State of Connecticut
  • Certified Arborist, International Society of Arboriculture
  • Turf and Ornamental license, State of Connecticut
  • B2 Heating License State of Connecticut

Professional/Company Acheivements


  • Inc. 5000 List of America’s Fastest Growing Companies, Arbor Energy, 2009
  • Past President of the Connecticut Tree Protective Association
  • Better Business Bureau, A+ ranking for multiple years: Total Tree Care and Arbor Energy

Professional Affiliations


  • Connecticut Tree Protective Association
  • Tree Care Industry Association
  • Connecticut Energy Marketers Association (formerly the Independent Connecticut Petroleum Association)
  • Cheshire Chamber of Commerce
  • Member, YPO-WPO (2011-present) Chair YPO Gold Connecticut River Valley Chapter 2014-2018
  • Past member of the Guilford Inland Wetlands Commission
  • Warrior’s Heart Rehabilitation Center

Community Involvement


  • Collection Site host, Toys for Tots
  • Cheshire & Guilford Little Leagues
  • Involvement on high school boosters organizations
  • Supporter, Cheshire DARE program
  • Legacy Theatre, Board of Trustees
  • Petit Family Foundation
  • Franciscan Sisters of the Eucharist and Abbey of Regina Laudis
  • Waterbury Foundation – United Way
  • Over 40 years of seedling donations to area students.