Business Details
37 Years
experience
Sustainable Architecture & Design Solutions in New England
Founded in 1989, we have dedicated three decades to advancing sustainable architectural practices across New England. Our expertise spans residential, commercial, and institutional projects, with a focus on renovation, historic preservation, and energy-efficient design. We integrate cutting-edge building science with a deep commitment to environmental stewardship, ensuring every project meets rigorous sustainability standards. Our team combines technical proficiency with creative vision to deliver spaces that harmonize with their surroundings while optimizing functionality.With LEED-certified professionals and a Certified Passive House Consultant on staff, we prioritize solutions that reduce environmental impact and operational costs. Our collaborative approach ensures clients receive tailored designs that reflect their unique needs and aspirations. We actively contribute to industry advancements through participation in organizations like the AIA and NESEA, maintaining leadership roles in promoting sustainable practices. Our portfolio demonstrates a consistent dedication to quality, innovation, and the evolving demands of modern architecture.
Services
Architecture
Historic Preservation
Site Design
Planning
Sustainable Design
Energy Consulting
Details
- Year established: 1989
Highlights and features
- We have over 30 years of experience in sustainable architectural design.
- Our team includes LEED-certified professionals and a Certified Passive House Consultant.
- We integrate site-specific solutions with environmental stewardship principles.
- We maintain active leadership roles in the American Institute of Architects.
- Our designs consistently achieve energy performance standards aligned with the 2030 Challenge.
Services
Architecture
Our architectural services create functional, aesthetically pleasing spaces tailored to client needs. We specialize in energy-efficient new construction and renovations across residential, commercial, and institutional sectors. Our designs integrate site-specific considerations with modern building science to optimize performance and sustainability while maintaining visual harmony with surrounding environments.
Historic Preservation
We preserve architectural heritage through careful restoration and adaptive reuse of historic structures. Our approach maintains original character while incorporating modern energy systems and functional upgrades. This includes detailed documentation, material analysis, and code-compliant modifications that extend building lifespans while respecting historical significance and community identity.
Sustainable Design
Sustainable design principles guide all our projects, focusing on energy efficiency, material conservation, and environmental integration. We employ passive solar strategies, high-performance building envelopes, and renewable energy systems to minimize ecological impact. Our expertise includes LEED certification guidance and meeting rigorous 2030 Challenge performance targets for carbon-neutral design.
Energy Consulting
Our energy consulting services optimize building performance through thermal modeling and system analysis. With a Certified Passive House Consultant on staff, we develop tailored solutions that reduce consumption while maintaining comfort. This includes recommending renewable energy integration, HVAC optimization, and construction detailing to achieve superior energy performance metrics.
Site Design
We create comprehensive site designs that balance programmatic needs with environmental stewardship. Our approach considers solar orientation, natural drainage patterns, and ecological preservation to minimize site impact. This includes exterior space planning, circulation systems, and landscape integration that enhance both functionality and sustainability of the built environment.
People
Michael W. Lassel
Founder & Principal Emeritus
Founded the firm in 1989 with expertise in high-performance buildings. Holds a Master of Architecture from Ohio State University and LEED AP certification. Served as urban planner in Munich and maintains leadership roles in AIA Maine and New England Regional Council.
Sarah Hourihane
Principal Architect
Licensed architect with extensive experience in residential and commercial design. Holds a Bachelor of Architecture from Roger Williams University. Focuses on client collaboration to achieve functional, aesthetically pleasing spaces that meet sustainability goals while balancing practical construction considerations.
Michal Kaleta
Project Manager
Certified Passive House Consultant advancing sustainable practices within the firm. Graduated from Poznan University of Technology in Poland. Specializes in energy modeling and performance optimization for new and renovated buildings across multiple climate zones.
Simon Yates
Associate Principal
Registered architect with international experience in high-end residential projects. Graduated from Victoria University of Wellington in New Zealand. Brings cross-cultural design perspectives and technical expertise in complex custom home developments across diverse environmental conditions.
Rachel Smith
Office Manager
Manages firm operations with over a decade of architectural administration experience. Holds a BA in Communication from University of New Hampshire. Coordinates project logistics and client communications while maintaining office systems and regulatory compliance.
Questions
What architectural services does Lassel Architects specialize in?
We specialize in sustainable design, historic preservation, energy-efficient new construction, site planning, and passive house consulting across residential and commercial sectors.
Do you work on historic building renovations?
Yes, we have extensive experience in historic preservation projects while maintaining modern energy efficiency standards.
Are your designs energy efficient?
All our projects incorporate sustainable practices, including passive house principles and energy modeling to optimize performance.
What geographic areas do you serve?
We primarily serve New England, with completed projects in Maine, New Hampshire, and Massachusetts.
Can you handle both residential and commercial projects?
Yes, our portfolio includes custom homes, multi-family housing, commercial buildings, and institutional facilities.
Do you have LEED-certified professionals on staff?
Our team includes LEED Accredited Professionals committed to sustainable building practices and certifications.
