Oaktree Development
Welcome to Oaktree Development
For over 40 years, Oaktree Development (formerly Unihab) has specialized in innovative, sustainable, mixed-use multifamily projects—many of them transit-oriented. Founded by architect-developers Arthur Klipfel and Gwen Noyes, Oaktree has led or designed more than 2,000 residential units with a commitment to high performance, social impact, and thoughtful urban design.
Oaktree’s companion firm, GreenStaxx (GSX), brings a patented modular building system to market, developed by Arthur Klipfel to streamline the design and construction of urban residential units. Using a digital library of pre-engineered unit stacks, GSX enables developers to build faster, reduce costs, and lower risk while meeting high sustainability standards.
Attractive, Efficient, profitable, and proven.
Our comfortably contemporary apartments are designed with both resourceful layouts and aesthetics in mind: every room is optimized for functionality and livability. This efficiency gives the property owner the advantage of achieving higher rents per square foot, while keeping overall construction costs competitive. Beyond enabling impressive occupancy levels, our building plans have been market tested: our Greenstaxx layouts consistently attract strong demand, notably maintaining waitlists for those eager to move in. This illustrates the power of refined modular design that truly stands out from the competition.
Our Team
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Arthur Klipfel
Founder
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Gwen Noyes
Founder
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Julia Hansen
Director of Business Development and Partnerships
Awards
2014 – Finalist for ULI’s prestigious Jack Kemp Award for Excellence in Affordable and Workforce Housing for 30 Haven Street in Reading, MA, a 53-unit, 22,000 SF retail mixed-use development.
2016 - Oaktree was honored with the Multifamily Executive (MFE) Project of the Year award in the Low-Rise category for its 74-unit, 38,000 SF commercial development, Brookside Square in West Concord, MA.
Several of Oaktree’s projects have been high-performance and sustainability market leaders, including Lexington Place, the first LEED Silver certified mixed-use development in the United States.
