Business Details
36 Years
experience
Award-Winning Architects in Bethesda, MD
DeLizzio Seligson Architects has delivered exceptional architectural solutions for over 30 years, serving clients across residential, religious, educational, and community sectors. Founded in 1990, our firm combines 50+ years of collective expertise with a client-centric philosophy, ensuring every project reflects the unique vision and needs of those we serve. Our team provides comprehensive services, from initial concept and design to construction management and agency coordination, with a focus on quality, innovation, and environmental stewardship. Licensed in Maryland, Virginia, and Washington, D.C., we bring personalized attention to every project, guided by principals who remain directly involved from start to finish.Our commitment to excellence is evidenced by 600+ successfully completed projects and recognition through design awards and publications. We specialize in historic preservation, interior design, and feasibility studies, offering tailored solutions for diverse client needs. Our work extends beyond buildings to include artistic furnishings and liturgical spaces, reflecting a holistic approach to architecture. With a reputation built on trust, responsiveness, and technical expertise, we partner with clients to create spaces that enhance communities and stand the test of time.
Services
Residential Architecture
Religious Architecture
Educational Architecture
Master Planning
Feasibility Studies
Historic Restoration
Interior Design
Fundraising & Marketing
Structural Engineering
Construction Management
Details
- Year established: 1990
Highlights and features
- We offer 50+ combined years of architectural expertise across diverse sectors.
- Our principals provide direct, personalized oversight for every project.
- We deliver comprehensive services from concept to construction completion.
- Specialized experience in historic preservation and religious architecture.
- Recognized through design awards and featured in architectural publications.
What people say
Most responsive, professional firm
Superior experience in every way
Stunning transformation of school
Patient, creative, and sensitive
Project completed within budget
Services
Residential Architecture
We specialize in custom residential projects including new construction, additions, and historic renovations. Our team creates functional, aesthetically pleasing spaces tailored to homeowners' lifestyles while maintaining compliance with local zoning regulations. With over 300 completed residential projects, we combine technical expertise with creative design to enhance property value and livability.
Religious Architecture
Our firm provides comprehensive design services for religious institutions, including churches, synagogues, and retreat centers. We understand the unique requirements of liturgical spaces and work closely with clergy and congregations to create spiritually uplifting environments. Services include master planning, fund development materials, and construction administration, with expertise in historical preservation and adaptive reuse of sacred buildings.
Historic Restoration
We specialize in preserving historical structures while integrating modern functionality. Our team has extensive experience with historic buildings, including additions, interior renovations, and code compliance upgrades. We work closely with preservation boards and government agencies to maintain architectural integrity while ensuring structural safety and contemporary usability for future generations.
Interior Design
Our interior design services focus on creating functional, beautiful spaces for residential, commercial, and institutional clients. We handle projects from initial concept through final detailing, including custom furnishings and artistic elements. With expertise in healthcare, educational, and community spaces, we ensure designs meet both aesthetic goals and practical requirements while maintaining compliance with accessibility standards.
Master Planning
We develop comprehensive master plans for estates, campuses, and subdivisions that guide future growth and development. Our approach considers zoning regulations, environmental factors, and long-term usability to create sustainable, adaptable spaces. Services include feasibility analysis, phasing strategies, and coordination with government agencies to ensure projects align with community needs and regulatory requirements.
People
Dennis Delizzio
President
President and principal architect with 40+ years of experience. Master of Architecture from Catholic University of America. Recipient of AIA design awards and featured in 'Who's Who Among American Professionals'. Serves on Archdiocese of Washington Sacred Arts Committee and has lectured at multiple universities.
Barbara Seligson
Vice President
Vice President, architect, and classically trained artist with 35+ years of experience. Holds Masters in Architecture and Fine Arts. Recipient of AIA Art by Architects award. Specializes in community projects and historic preservation. Published author and former university lecturer with expertise in client communication and design implementation.
Questions
What architectural services do you specialize in?
We specialize in residential, religious, educational, and community architecture, including historic preservation, interior design, and master planning.
How long have you been in business?
Founded in 1990, our principals have over 50 combined years of experience with 600+ completed projects in the Washington Metropolitan Area.
Do you work outside the Washington, D.C. area?
While based in Bethesda, we work throughout Maryland, Virginia, Washington, D.C., and can coordinate projects nationwide through professional networks.
How do you involve clients in the design process?
We prioritize client vision through collaborative workshops, regular updates, and direct principal involvement from concept to project completion.
Can you help with historic building renovations?
Yes, we have extensive experience with historic structures, including code compliance upgrades while preserving architectural integrity and character.
