Business Details
18 Years
experience
Your Trusted Architectural Partner in Westchester County
Gregg C De Angelis Architects is a full-service architectural planning and design firm with a diverse portfolio spanning healthcare, commercial, multi-family, and custom residential projects across Westchester County, New York City, New Jersey, and Connecticut. Our expertise includes new construction, renovations, adaptive reuse, and urban/suburban developments. We prioritize a collaborative design process, ensuring client needs are met with responsive, budget-conscious solutions that incorporate sustainable practices. With decades of combined experience, our team delivers thoughtfully detailed projects that reflect long-term client relationships built on trust, innovation, and meticulous attention to detail. 
Services
Healthcare Architecture
Commercial Design
Residential Renovations
Mixed-Use Development
Sustainable Design
Master Planning
Adaptive Reuse
Urban Development
Site Planning
Feasibility Studies
Details
- Year established: 2008
Highlights and features
- We offer over a decade of repeat client relationships and collaborative design expertise.
- Our team holds LEED accreditation for sustainable building practices.
- We specialize in complex healthcare and mixed-use projects with regulatory compliance.
- Our designs prioritize environmental sustainability and budget-conscious solutions.
- We maintain a proven track record in adaptive reuse and urban development.
Associations and certifications
- LEED
Services
Healthcare Architecture
We design healthcare facilities that prioritize patient care, regulatory compliance, and operational efficiency. Our projects include hospitals, surgical suites, and outpatient treatment centers. Clients benefit from our expertise in navigating complex healthcare regulations and integrating sustainable practices.
Commercial Design
Our commercial design services focus on creating functional, aesthetically pleasing environments for retail, office, and mixed-use developments. We emphasize transit-oriented design, flood-resilient construction, and energy-efficient solutions tailored to urban and suburban contexts.
Residential Renovations
We specialize in residential additions, renovations, and custom homes that maximize natural light, outdoor connectivity, and modern living standards. Projects include master suites, accessibility upgrades, and historic property adaptations with a focus on client-specific needs.
Sustainable Design
Our sustainable design approach incorporates LEED-certified practices, rainwater harvesting systems, solar energy integration, and eco-friendly materials. We ensure projects meet environmental standards while maintaining aesthetic and functional excellence across all building types.
Master Planning
We provide comprehensive master planning for mixed-use, affordable housing, and infrastructure projects. Our process includes zoning analysis, 3D modeling, and stakeholder collaboration to create visionary, community-enhancing developments aligned with long-term growth goals.
People
Gregg C. DeAngelis
President
With over 30 years of experience, Gregg leads our firm's vision and client relationships. He is a LEED Accredited Professional and former President of the Westchester + Hudson Valley Chapter of the American Institute of Architects.
Brian Burke
Principal
Brian oversees project design and technical execution. He specializes in healthcare and institutional projects, ensuring compliance with state and federal regulations while maintaining architectural integrity.
Matthew Janesak
Project Architect
Matthew manages residential and commercial projects, focusing on client communication and sustainable design solutions. He brings expertise in adaptive reuse and urban infill developments.
Questions
What types of projects does DeAngelis Architectural Services specialize in?
We specialize in healthcare facilities, commercial buildings, residential renovations, mixed-use developments, and sustainable design projects across Westchester County and the Northeast.
Do you handle projects requiring ADA compliance?
Yes, we have extensive experience ensuring projects meet Americans with Disabilities Act requirements, particularly in public and healthcare facilities.
Can you assist with flood zone construction challenges?
Yes, we incorporate flood-resilient design elements for coastal and FEMA-regulated areas, including elevated structures and dry-proofing techniques.
What sustainable design practices do you implement?
We integrate LEED-certified strategies, solar energy systems, rainwater harvesting, and eco-friendly materials to reduce environmental impact while meeting client needs.
How do you approach complex regulatory approvals?
We navigate zoning laws, environmental regulations, and municipal processes through strategic planning and collaboration with local authorities.
Do you work on historic property renovations?
Yes, we specialize in preserving historic structures while modernizing functionality, as seen in our residential and commercial adaptive reuse projects.
