Please read our Testimonials; they will give you the best understanding of who we are. We are most proud of our client relationships; more so than any award could bring us, it is the joy and productivity that our clients find in our work:

Residential Client & Contractor:
Most responsive, professional individual/firm that I have ever had the pleasure of working with !! I offer my highest recommendation.
- Ken O'Connell, Repeat Client


Residential Client:
They designed two additions to our home very beautiful Italian renaissance. They had a special grotto feature. Our home appeared in the design and home magazine as a beautiful Italian villa. They are the architects that I would use on any future projects
- Joe Bruno, Repeat Client


Residential Contractor:
I am a remodelling contractor and have used Delizzio Selingson Architects for over 25 years for all of my projects. Those projects range from small structural wall removal drawings to large home additions drawings. They are great people to work with and I highly recommend them to anybody.
- Jerry Gerard, Repeat Client


Re: Multiple Religious and Community Projects:
"I have worked with many Architects, and no one has your personal skills for dealing with issues and resolving them among many differing opinions, particularly in the Catholic environment. You have the gift of listening to people's needs, and coming up with the solution best suited for that client. I would give you any recommendation that I could."

Monsignor John Enzler, Archdiocese of Washington, President and CEO, Catholic Charities


Our Lady of Mercy Parish & School:

"Dear Dennis, ... Please know my eternal gratitude to you for being such an important part of what I believe is right for our parish, for the total community, and specifically for the children and elderly in our midst ...You are great!"

Monsignor John Enzler, Pastor, Potomac, Maryland


Saint Jane de Chantal Parish & School:

 "... has the feeling of the continuity of our Faith from the beginning of time, as if it has always been prayed in..."

James Cardinal Hickey, Archbishop of the Archdiocese of Washington


The Dominican House of Studies Restoration & New Theological College:

" ... Having worked with a number of other Architects, I found working with Mr. DeLizzio and Ms.

Seligson to be a superior experience in every way ...their ability to design buildings of the highest quality, and to develop a close working relationship with the client. ..their attention to detail. .."

Reverend Joseph Barranger, O.P.,Prior and CEO, Washington, DC


The Dominican House of Studies New Theological College & Academic Center:

The new facilities "...provide hope and life in these troubled times, and confirm that our Church is very much alive in the United States of America ..."

Most Reverend Pietro Sambi, Apostol ic Nuncio of the Holy See to the United States of America


The Dominican House of Studies New Theological College & Academic Center:

  "The building enhances the value of The Catholic University of America through its beauty...It provides a remarkably seamless Architectural transition, from the old Priory to the new."

Father O'Connor, President, Catholic University


Cristo Rey Catholic School:

"You are great! We truly appreciate the depth of your support".

Dr. Michael G. Caruso, Superintendent for Schools, Archdiocese of Washington


Bishop McNamara Catholic School:

"We have trusted you completely, through the entire process. You have given us a vision for the school that I could not even imagine; it is a stunning transformation ..."

Ms. Heather Gossart, President and CEO, Forestville, MD


Saint Andrew Apostle Parish:

"Dear Dennis & Barbara...I asked our Lord to send someone who could walk onto the property, evaluate what we have and don't have, and He answered with two very gifted people ..."

Reverend Joseph Kennedy, Pastor, Silver Spring, Maryland


Saint Jane de Chantal Parish:

"... with each meeting I am increasingly impressed with Dennis and Barbara, their sensitivity and understanding of the parish needs ..."

Anne Marie Snyder, Chairperson Building Committee, Bethesda, Maryland


All Saints' Anglican Church:

"I am standing in the space that you created for us and have to tell you of my love and thanks for the magnificent work you have given us...there were tears in everyone's eyes when they saw what you had done. Thank you again, for being so patient, creative and sensitive with our Parish"

Bishop John Guernsey, Angilican Bishop East Coast of America, Dale City, VA


All Saints' Anglican Church:

"You are such a joy to work with. I always look forward to our meetings and conversations. I thank God for our partnership."

Bishop John Guernsey, Head Pastor, All Saints' Church, Dale City, Virginia


The Dominican House of Studies New Theological College & Academic Center:

"Please accept our extreme thanks for all that you have done; I cannot tell you the number of people that have expressed to me, their profound awe at what you have created here."

Reverend Fox, The Dominican Friars


The Winchester Private School:

"Thank you for working so hard throughout the Special Exception process; each revision of the design remained beautiful.  I so appreciate the way your firm has used it's heart, mind, and soul on my project. Thank you for a great job."

Mary Rhim, Owner and Director, Olney, Maryland


The Saint John Paul II House of Formation, Seminary:

“The Saint John Paul II House of Formation is exactly what a Seminary should look like, “Manly”, but beautiful, not institutional but warm. The building is unified and feels like everything belongs in its proper place. Thank you (DeLizzio Seligson Architects) for an outstanding job over three phases and several years.”

Monsignor Robert Panke, Rector, Saint John Paul II Seminary


Our Lady of Lourdes Church, Virginia:

“The renovations and addition to the Church is a complete success, something we have needed here for a long time. It blends in with the Church so it looks like it has always been here. Also, I am so pleased to report to the parish that the project was within our budget.”

Msgr. Robert Avella, Pastor, Our Lady of Lourdes Church, Arlington, VA



12 S. Adams Street
Rockville, MD 20850
+1 301 424 8944