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Business Details
26 Years
experience
Your Trusted Architectural Partner in Oyster Bay, NY
Established in 2000, Core Group Architects has built a reputation for delivering innovative architectural solutions through client collaboration, creative problem-solving, and technical expertise. Our firm specializes in designing residential, commercial, and hospitality projects that prioritize functionality, aesthetics, and contextual harmony. With over two decades of experience, we have successfully completed diverse projects ranging from private residences in New York and Pennsylvania to hospitality renovations and country club expansions. Our approach emphasizes active listening to client needs, rigorous research, and leveraging modern technology to transform conceptual ideas into tangible, award-winning structures.

Notable projects include a 7,000-square-foot Adirondack-style vacation home, a Hilton Hotel renovation in Albany, and a Glen Head Country Club transformation. Our principals, Robert A. Peterson and Michael Sergio Tedesco, are recognized for their problem-solving acumen and commitment to advancing architectural excellence. We maintain strong client relationships by adhering to the core values of collaboration, innovation, and technical precision established at our founding.
Services
Residential Architecture Commercial Design Hospitality Renovations Interior Design Country Club Expansions
Details
  • Year established: 2000
Highlights and features
  • 20+ years of architectural expertise in residential and commercial design
  • Client-centric approach emphasizing collaborative problem-solving
  • Award-winning projects recognized in hospitality and country club sectors
  • Technical proficiency in navigating complex zoning regulations
  • Proven track record with multi-phase, large-scale renovations
Associations and certifications
  • AIA (American Institute of Architects)
Services
Residential Architecture
We create custom residential designs that balance aesthetic vision with functional requirements. Our process involves navigating zoning challenges, developing detailed interior/exterior plans, and overseeing construction to deliver homes that exceed client expectations. Projects range from modern Adirondack-style retreats to luxury estates with integrated outdoor living spaces.
Commercial Design
Our commercial architecture focuses on creating functional, visually striking spaces that meet business needs. Recent projects include hotel renovations and country club expansions that combine durability with upscale aesthetics. We specialize in material selection and spatial planning that enhances both operational efficiency and customer experience.
Hospitality Renovations
We transform hospitality spaces through modern design interventions that elevate guest experiences. Our work includes complete interior overhauls of banquet facilities, common areas, and service infrastructure while maintaining operational continuity during renovations. Projects emphasize timeless material palettes and adaptable layouts.
Interior Design
Our interior design services focus on creating cohesive environments that reflect brand identity and functional requirements. We collaborate with specialized designers to develop award-winning interiors featuring custom millwork, lighting solutions, and material selections that enhance spatial dynamics.
Country Club Expansions
We specialize in expanding country club infrastructure with modern amenities while preserving historical character. Our projects include kitchen expansions, banquet hall renovations, and accessibility upgrades that enable clubs to host large events while maintaining their traditional appeal.
People
Robert A. Peterson
Principal | Partner
AIA-certified architect with over 20 years of experience in residential and commercial design. Specializes in transforming complex client visions into award-winning built environments through technical innovation and collaborative problem-solving.
Michael Sergio Tedesco
Principal | Partner
AIA-certified architect known for technical expertise in large-scale renovations and hospitality projects. Brings two decades of experience in guiding complex developments from conceptual design through construction completion.
Questions
What architectural styles do you specialize in?
We adapt to client needs while maintaining contextual sensitivity. Recent projects include modern interpretations of Adirondack styles, sleek hospitality interiors, and traditional country club renovations.
How do you handle zoning challenges?
We view zoning regulations as creative constraints that often lead to innovative solutions. Our team works closely with local authorities to develop compliant yet distinctive designs.
Can you manage multi-phase construction projects?
Yes, we specialize in phased projects like the Glen Head Country Club expansion, ensuring continuity and minimal disruption during active operations.
Do you work outside New York State?
While based in Oyster Bay, we've completed projects in Pennsylvania and Manhattan, with experience navigating regional building codes and material sourcing.
What's your approach to sustainable design?
We integrate eco-friendly materials and energy-efficient systems tailored to each project's specific needs and budgetary considerations.