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Powerful Designers and Architects

Daroff Design Inc + DDI Architects, PC (DDI), is an award-winning, internationally recognized interior design and architecture firm. We specialize in the facility programming, master planning, and design of innovative, efficient, cost effective, and environmentally sustainable facilities for our workplace, hospitality, multi-family, and public sector clients. Working in diverse design vocabularies, our creative team, licensed to practice throughout the US, is widely recognized for our integrated design process and for creating emotionally connected experiences.

We believe in creating design solutions that thoughtfully respond to the cultural, operational and brand objectives of each client. Our project management philosophy is grounded in client advocacy, our success is achieved through effective communication, teamwork, innovative thinking, and a commitment to design excellence.

Now celebrating nearly 50 years in business as a certified Woman Business Enterprise (WBE), we provide our clients with a wealth of creative, and technically skilled design and project management services. We are consistently recognized as a leading, innovative design firm both by the USA and world design press, including our regular inclusion in Interior Design’s Top Hospitality Giants and Contract Magazine’s Top Workplace Design Firms.
  • Attention to Detail
  • Attention to Detail
  • Attention to Detail
  • Global Reach
  • Global Reach
  • Global Reach
  • Proactive Team Members
Leadership Team
Awards + Recognitions
IIDA PA|NJ|DE Award — Best of Residential
Contract Magazine Designer of the Year
Hospitality Design Platinum Circle Hall of Fame
Smart CEO Brava Award
American Corporate Identity Award of Excellence
Pennsylvania’s 50 Top Business Women
IFDA Designer of the Year Award
Philadelphia University — Innovation Award
Top 10 Design Firm Hotel and Business
GBCA Excellence Award — Best Hospitality Project
ABC — Excellence in Construction Award
Fifty Top Business Women in Pennsylvania Award
Moore College of Art & Design Distinguished Alumna
Philadelphia Business Journal — Women of Distinction Award
Women of Tomorrow — Entrepeneur of Today + Tomorrow
Interior Design Magazine Design Giants — Since 1978
Interior Design Magazine Hospitality Giants — Since 1999
Licensing Information

Arizona License Number: 33091
California License Number: C27828
Colorado License Number: ARC.00305736
Connecticut License Number: ARI.0009183
Delaware License Number: S5-0006375
District of Columbia License Number: ARC6499
Florida License Number: AR0016581
Georgia License Number: RA009917
Hawaii License Number: AR-9864
Illinois License Number: 001017149
Indiana License Number: AR10000105
Kansas License Number: A4478
Kentucky License Number: 5651
Louisiana License Number: 5376
Maine License Number: ARC4592
Maryland License Number: 12150
Massachusetts License Number: 10353
Mississippi License Number: 3185
Missouri License Number: 008320
Nevada License Number: 4251
New Hampshire License Number: 03324
New Jersey License Number: 21AI01457200
New York License Number: 010318
North Carolina License Number: 8366
North Dakota License Number: 2157
Ohio License Number: ARC.9812183
Pennsylvania License Number: RA013679B
Puerto Rico License Number: 18378
South Carolina License Number: 5898
Tennessee License Number: 101883
Texas License Number: 25541
Virginia License Number: 0401011250
West Virginia License Number: 4008
Wisconsin License Number: 8920-5