We will be speaking at Green Building United's Sustainable Warehouse Forum on September 23rd at Lafayette College!


The Stone House Group Team

5th Floor Flatiron Building

Photograph Bethlehem, PA

About The Stone House Group

The Stone House Group is named after the simple and sturdy structure where the first company meeting was held in 1999. Larry Eighmy, a graduate of Middlebury College, Darren Cassel, of Lehigh University, and Rob Butch of Swarthmore College, leveraged their combined expertise in facilities, energy and finance to create a company committed to providing its clients with the tools to better align their facilities with their mission. After graduating from summer kitchen to barn, The Stone House Group moved to the Flatiron Building on the SouthSide of Bethlehem, PA, where the firm resides today.

We work to practice what we preach in our own backyard by advocating responsible stewardship of our community and environment, which you can read more about here. This focus aligns flawlessly with The Stone House Group’s mission to help our clients realize the potential within their facilities. By providing services for academic, not-for-profit and professional clients, we conduct our business with respect for our community and environment, building relationships by championing and challenging our client’s facilities to effectively support and align with their mission. This transformation from space to place is “Building Stewardship”.

Since our founding in 1999, the firm has grown from a handful of dedicated specialists to a group of over twenty professionals with backgrounds ranging from PE, CEM, CCP, LEED AP, REP, sMBA, and BECxP. With a foundation in facilities, energy and finance, we have grown to offer services in energy management, facilities management, sustainable design consulting and commissioning, which together improve “Building Stewardship”. We have served more than 300 clients globally – from Bethlehem to Beijing – and our continued relationships with our clients is one of the most important factors in making us who we are today.

We believe that The Stone House Group still stands on its original pillars of quality and integrity, proudly representing the strong, sturdy structure on which we were founded. We have grown to be prepared to engage the new challenges our clients will face in the coming years in “Building Stewardship”.

The Flat Iron Building

The Flatiron Building, located at 301 Broadway on the South Side of Bethlehem was designed by A.W. Leh and built in 1910 for the famous banker, E.P. Wilbur. Still well known for its masonry, brick exterior and triangular floor plan, The Flatiron Building now also boasts a prototype CEWA Solar collector on the roof and a 38 kW PV array on the adjacent parking garage roof.

With assistance from a $830,000 loan from the state’s Alternative and Clean Energy (ACE) Program and in an effort to practice what we preach at The Stone House Group, several newly renovated spaces in the building, including The Stone House Group’s new 5th floor office, are pursuing LEED Gold Certification. Additional building upgrades and renovation projects have been possible through the ACE loan, including condensing gas boilers, controls and LED lighting upgrades to several shared spaces in the building. We hope the Flatiron Building can become an innovation space for new technologies with tenants having the opportunity to apply for funding under the Keystone Innovation Zone. It is our goal to continue fostering stewardship in the local community by creating a sustainable community and leading by example.

Flat Iron Building Directory

For Flatiron Building businesses, please see the directory below.

First Floor


2nd Floor

3rd Floor

4th Floor

5th Floor

  • The Stone House Group, Suite 500
  • Community Room

Space is available

Please contact Amy Harris at ALT Realty for more information.

Inquiries for use of 5th Floor Conference Space, please contact Alison Furchner, Building Manager.

Community Connections – SouthSide Ambassadors

About Bethlehem

Whether it’s the celebratory atmosphere of Musikfest the first week of August, attending the annual SouthSide Film Festival, or a low key evening at one of main street’s fine restaurants followed by the weekly open-air concert at the Sun-Inn or ArtsQuest, Bethlehem has a lot to offer the summer resident. The apartment and office are within walking distance of Bethlehem’s colonial and industrial historic districts, arts and performance spaces, a microbrewery, a microdistillery, great bars and restaurants, and miles of mountain biking and running trails. Less than an hour’s drive provides access to rock climbing, white water rafting, the Appalachian Trail and other great hiking, while another half-hour reaches the urban areas of New York City and Philadelphia.




17+ Healthcare and medical clients served.

Did you know?

We are very pleased with and would recommend their services to peer institutions.


Assistant Head of School for Finance and Operations, Garrison Forest School  |  William S. Hodgetts