top of page

Who we are and what we're about

Allen & DeLalio Architects, Inc. is a full range design firm founded in 2015 as the next evolutionary step of the collaborative partnership forged in 2010 between Scott H. Allen and Nancy DeLalio.


In addition to custom homes, Allen & DeLalio Architects also designs for multifamily, townhouse, commercial and mixed use construction, additions and renovations.  Our design philosophy is that a building should blend both style and functionality in order to meet lifestyle needs while reflecting the personality of the homeowner(s) or business.  As a result of this approach, clients find they receive personal solutions to their design needs.  Our design repertoire is diverse in nature, so you'll find that you're not limited to any particular style.  Whether you already have your own design ideas or don't know where to begin, Allen & DeLalio Architects will work with you to create a design that works for you, your budget, and your builder.  When it comes to construction documents, builders find our plans to be comprehensive and easy to work from.  However, should you require a greater comfort level when it comes to the construction process, we can provide construction consultation or administration services as well as assist in material and finish selections.

Scott H. Allen, AIA


Scott H. Allen graduated from the University of Cincinnati - College of Design, Art, Architecture and Planning with a Bachelor of Science in Architecture.

A native of Ohio, Scott has resided in Maryland since 1985 following his college internships in Baltimore with Marks, Cooke & Thomas Associates and Gilbert D. Cooke Associates.  He went on to work for Ryland Homes, Inc.

(Mid-Atlantic Region) for three years before launching

his own architectural firm.


An AIA member and currently registered in Maryland,

New Jersey, Delaware and D.C., Scott's expansive knowledge of the International Building Code (IBC), International Residential Code (IRC), as well as state codes for Maryland, New Jersey, Delaware and Virginia and over 29 different jurisdictional codes in Maryland and Pennsylvania, enables him to provide accurate, code compliant plans.


Scott H. Allen has received a number of awards including Americans Finest Family Living (Single Family House), the SMC Award of Excellence (Single and Multi-Family Homes), and the SMBIA Award of Excellence (Best Outdoor Space).  He has served on the Building and Zoning Subcommittee for the Federal Hill South Association of Baltimore and both the Vision Task Force and Playground Committee for St. John's Church in Catonsville.  Scott was instrumental in providing information regarding the effect of new ADA requirements on manufactured housing for the Steven Winters Associates, Inc. ADA Study.  The report was published in "Cost of Accessible Housing", January 1993.


Scott currently resides in Howard County with his wife and children.

Nancy DeLalio, AIA


Nancy L. DeLalio graduated from Syracuse University - 

School of Architecture with a Bachelor of Architecture with a Dean’s Citation of Excellence for Thesis Design.  She had a concentration in Land Development Law and Computer Aided Design.

​A native of New York, Nancy has resided in Maryland since 1994.  She went on to work for Davis Carter Scott and then RTKL for 10 years before launching her own architectural firm.


Her background has included work in the Hospitality, Government Agency, Civic and Cultural, Academic, Industrial, Research and Laboratory, Residential, Healthcare and Commercial Office Buildings sectors.  Her interest in Urban Planning and Land use led to her involvement with the Montgomery County Planning Department community studies for the Olney Master Plan Update and as a founding member of the Olney Town Center Advisory Committee at the request of the Montgomery County Planning Department sector Planner.


An AIA and NCARB member and currently registered in Maryland, Nancy’s extensive knowledge of the International Building Code (IBC), International Residential Code (IRC), state codes for Maryland, Virginia, and DC as well as ADA design guidelines enables her to provide accurate, code compliant plans.


Nancy L. DeLalio has received the Lighthouse Award for

Best Kitchen in a new home from the Hilton Head Area Home Builders Association for an Artist’s Residence in South Carolina.  She was honored by the Greater Olney Civic Association with the Contribution to the Community Award for her work with the Olney Town Center Advisory Committee.  She has served on the Cashell Elementary School Reconstruction Committee as advisor to the Principal and has been consulting Architect for Hallowell Homeowner’s Association Architectural Control Committee since 1998.  She currently serves on the Board of Trustees for the Rockville Science Center.


Nancy currently resides in Montgomery County with her husband and children.

bottom of page