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Creating Meaningful Places Through Architecture
At A359 Partners in Architecture, we believe collaboration, communication, and creativity are essential to creating meaningful places. Founded on principles of partnership, our employee-owned firm is dedicated to delivering architectural excellence through technical expertise and a commitment to sustainability. We specialize in architectural design, urban redevelopment, and interior design, focusing on adaptive reuse to preserve historic character while meeting modern needs. Our team of LEED-accredited professionals prioritizes client satisfaction, ensuring every project reflects both aesthetic vision and functional purpose. With over a decade of experience in Cincinnati and projects spanning the U.S. and globally, we combine local insight with international capabilities.

Our open studio environment fosters innovation, allowing us to tackle complex projects of any scale. We measure success not just by the spaces we create, but by the lasting value they bring to communities and clients alike.
Services
Architectural Design Urban Redevelopment Interior Design Site Master Planning Sustainability/LEED Architectural Rendering
Highlights and features
  • We are an employee-owned firm with LEED-certified architects.
  • Specialized expertise in adaptive reuse of historic buildings.
  • Collaborative approach involving principals in every project phase.
  • Proven track record in Cincinnati and global projects.
  • Commitment to sustainability and community-focused design.
What people say
Consistent attention to detail Technical expertise Client satisfaction Congenial atmosphere Creative solutions
Services
Architectural Design
We provide comprehensive architectural design services from concept to construction. Our approach balances aesthetics and functionality, ensuring spaces inspire and meet client needs. With technical expertise and LEED-certified professionals, we deliver innovative solutions for projects of all scales.
Urban Redevelopment
Our urban redevelopment focuses on repurposing underutilized buildings to preserve history and conserve resources. We specialize in transforming spaces into vibrant community assets through strategic design and collaboration with stakeholders for sustainable urban growth.
Interior Design
We craft interior environments that enhance productivity and align with client missions. From corporate offices to educational institutions, our designs integrate functionality and culture, creating spaces that support daily goals and long-term success.
Sustainability/LEED
We advocate for LEED-certified buildings that prioritize environmental stewardship. Our sustainable designs reduce ecological impact while improving efficiency, ensuring projects meet rigorous standards for energy use, materials, and occupant well-being.
Site Master Planning
Our master planning services create cohesive visions for large-scale projects. We integrate technical expertise with creative design to optimize land use, foster collaboration, and develop spaces that evolve with community needs over time.
People
Cori Cassidy
Architect and Partner
Cori Cassidy, AIA, LEED AP, brings expertise in sustainable design and project leadership. She focuses on creating spaces that balance functionality with environmental responsibility, ensuring client goals align with ecological best practices.
Andrew Harte
Architect and Partner
Andrew Harte, AIA, LEED AP, specializes in urban redevelopment and historic preservation. His work emphasizes adaptive reuse, transforming underutilized structures into vibrant, modern spaces while maintaining their historical integrity.
Brian Coffman
Architect and Partner
Brian Coffman, AIA, LEED AP, contributes extensive experience in architectural design and project management. He prioritizes collaborative problem-solving to deliver innovative solutions that meet client needs and exceed industry standards.
Brett Flodder
Architect
Brett Flodder, AIA, focuses on integrating technical precision with creative design. His work spans diverse project types, emphasizing attention to detail and the seamless execution of complex architectural concepts.
Gregory Kissel
Architect and Partner
Gregory Kissel, AIA, LEED AP, specializes in sustainable design and LEED certification processes. He ensures projects meet rigorous environmental standards while maintaining aesthetic appeal and functional efficiency.
Questions
What architectural services does A359 offer?
A359 provides architectural design, urban redevelopment, interior design, site master planning, sustainability consulting, and architectural rendering services.
Do you specialize in historic building reuse?
Yes, we focus on adaptive reuse of underutilized buildings to preserve history while meeting modern functional needs through innovative design.
Are your architects LEED-certified?
All our partners are LEED Accredited Professionals, ensuring expertise in sustainable design and green building certification processes.
What areas do you serve?
While based in Cincinnati, we work on projects across the United States and internationally, combining local insight with global capabilities.
How does your firm approach collaboration?
Every project involves direct participation from A359 principals, ensuring consistent communication, shared expertise, and a collaborative design process from concept to completion.