About BPC Green Builders

Over Two Decades of Green Home Building Leadership

Established in 1998 by brothers Mike and Chris Trolle, BPC Green Builders is one of the very first builders in Connecticut to specialize in high-performance, sustainable, green homes.

certified Passive house in CT

Certified Passive House

Green home with solar panels

Passive House & LEED for Homes Platinum Certified, Net Zero Energy Home, & Positive Energy Home

Today, BPC is one of the leading custom green home builders and green renovation contractors in Connecticut and New York, completing more than 44 of the highest performing and most energy-efficient custom home projects in New England. Winning many national green building awards and certifications, BPC is widely recognized as the region’s leading custom green builder.

passive house exterior in CT

Certified Zero Energy Ready Home Built to Passive House Standards and will be Zero Energy Home when planned Solar Panels are installed.

Better Built Custom Homes

Green Home being built in Connecticut Known for outstanding leadership and innovation in residential green building, BPC’s extensive training in the science of high-performance homebuilding and years of experience applying the latest in green standards and technologies sets it apart. Coupled with strong engineering and design backgrounds, BPC delivers a high level of craftsmanship and expertise that is unparalleled.

The Trolle’s brand of custom green build begins with an airtight exterior “thermal envelope” and includes precision control over the movement of air, heat, and moisture between the indoor and outdoor environments. This control sets the stage for better health, comfort, safety, durability, and maintenance.

BPC Green Builders Put Clients First

BPC’s experienced and technically skilled team delivers personalized service and attention. BPC educates and guides clients from beginning to end, delivering personalized service. The more you learn, the more you realize the advantages and benefits of building Green.

We act as a close advisor and builder to help get the most from your home and within your budget. Our team approach includes consultation on initial designs to maximize the utilization of specialized green advancements and achievement of high performance needed to assure each project meets or exceeds targeted green building standards.

While helping educate and advise on green building options, strategies, costs, and benefits, the BPC Team works closely with clients on customizing projects to align with their priorities. Each custom home or renovation project is designed around delivering solutions to clients’ individual needs, specific goals, priorities, and objectives. Using creative design options, solid building science principles and leading-edge green building approaches, BPC homes deliver healthy, energy efficient and sustainable benefits. Visit our client testimonial page

BPC Homes Offer Proven Benefits

green home

Using advanced building science and green building materials, BPC’s carefully designed, well built green homes are simply better homes offering benefits unequaled by conventional home builders.

  • Energy savings and efficiency
  • Healthy living with excellent indoor air-quality
  • Comfortable, draft-free, and smoothly controlled temperatures and humidity
  • Lower homeownership costs, minimized maintenance and replacement expenses
  • Environmentally conscious and responsible
  • Promote sustainable development
  • Enhanced resale value

BPC’s Impressive Track Record and Award Winning Achievements

  • Built the first and only American Lung Association House in Connecticut.
  • Managed and constructed dozens of custom projects and homes that exceed ENERGY STAR FOR NEW HOMES®
  • Currently building all new homes to the DOE Zero Energy Ready Home standard as our benchmark.
  • Recipients of numerous local and national awards and prominent certifications including LEED for Homes, Net Zero, and Passive House.
  • Exceptional HERS scores, including three homes achieving beyond net zero with negative HERS scores up to -17.
  • Numerous Net Zero custom built homes that are among the very best in the nation. These homes often generate more energy than they use which can then be sold to the power companies.

Learn More About BPC’s Certifications and Awards

BPC is a Leading Authority on Healthy, Sustainable, High-Performance, Energy-Efficient Custom Green Homes

Articles about our work and expertise have appeared in:

Contact us about your project

Project Details & Photo Gallery

“We were surprised and delighted to find in Mike Trolle, of BPC Green Builders, a local builder who not only gave us the kind of house we wanted, but helped us figure out what that was in the first place. His ideas about what a house needs — and doesn’t need — were invaluable. He even helped us find an architect whose ideas were in sync with ours.”
Tom and Stacy, Westport, Connecticut
“We found your expertise in building science to be of great help in planning the project and in the selection of appropriate equipment and materials. BPC’s management of the subcontractors and communication with us always met our expectations. Moreover, BPC was conscientious and ethical in all aspects of the work. We would be pleased to recommend BPC without reservation.”
Christine and Monte, Bethany, Connecticut
“As architects, it has also been a sincere pleasure to work for Mike. He is an extraordinary client who has been able to utilize our skills and experience. The working relationship that we have developed is based upon trust and confidence, and has been tested by the realities and trials of construction.”
Thomas RC Hartman, AIA, Coldham Architects LLC
“BPC is in the forefront of this commitment. Our company has benefited from our professional and personal interaction with Mike and Chris Trolle. From client introduction to final walk through, the drive for total customer satisfaction is clear.”
Dean Demague, High Performance Energy Solutions

Consumer publications-

  • The New York Times
  • Connecticut Magazine
  • CPTV’s series “Connecticut’s Energy Future”
  • The Home Monthly
  • Connecticut Magazine
  • NewsTimes
  • Westfair Online 
  • Ridgefield Magazine
  • Press, Ridgefield, CT
  • New Canaan News
  • The Litchfield County Times
  • Sierra Club Quinnehtukqut

 Trade press-

  • GreenBuilder
  • GreenBuilder – The Green Design Guide
  • Energy Design Update
  • Build with Propane, News
  • U.S. Department of Energy Challenge Home Case Studies
  • Green Home 2014 Annual Issue
  • Green Home 2012 Annual Issue
  • Green Home 2011 Annual Issue
  • Green Home 2009 Annual Issue

Licensed and Insured

In Connecticut: BPC Green Builders operates as BPC Green Builders, Inc. and we are licensed as follows, New Home Contractor (#0014220), Home Improvement Contractor (#0643859), and Professional Engineer CT(#19135). In New York: BPC Green Builders operates as BPC Green Builders of New York, Inc. and we are licensed if and as required by the areas we work in. We are insured in both Connecticut and New York as required by law.

Trained and Certified

Our staff holds degrees, certifications and/or have been extensively trained in:

  • Green Building
  • EPA Energy Star Construction
  • DOE Zero Energy Ready Homes
  • LEED for Homes
  • Passive House (Passivhaus)
  • Passive House PHIUS Standards 
  • Sustainability
  • Building Science
  • Energy Efficient Construction
  • Engineering
  • Real Estate Development
  • Performance Rating
  • Healthy Home Construction
  • Indoor Air Quality (IAQ) Assessment
  • and more…