
We are PQCAS
PQC Architectural Studio (PQCAS) is a multidisciplinary architecture, engineering and project delivery firm specializing in design, historic preservation, restoration, and construction management. The studio emerged following the retirement of its principal’s longtime partner and father, concluding a distinguished 28-year professional collaboration under OPQ Architects, PSC, and evolving into a renewed entity with a 12-year trajectory of continued service and market expansion.
Building on over four decades of combined experience, PQCAS carries forward a legacy of architectural excellence grounded in innovation, preservation, and resilience. Headquartered in San Juan, Puerto Rico, the firm serves clients across Puerto Rico, the Caribbean, the U.S. mainland—particularly Florida—and select international markets.
Our work is distinguished by meticulous attention to detail, budget-conscious design strategies, and an unwavering commitment to client goals—principles that define our professional philosophy and sustain our record of enduring success.
When Passion Meets Precision
Commitment to Excellence
At PQCAS our unwavering dedication to professional excellence is reflected in the quality of our work and the trust of our clients. We remain committed to delivering innovative, sustainable, and culturally sensitive design solutions that meet our clients’ goals and enhance the built environment.
Proven Track Record
PQCAS has delivered exemplary design and construction management services for historic preservation projects in collaboration with:
- State Historic Preservation Office (SHPO)
- Puerto Rico Infrastructure Financing Authority (PRIFA)
- Puerto Rico Institute of Culture (ICP)
- Government of Puerto Rico Agencies
Focus on Results
With over 90% of our designed projects successfully built, our expertise in guiding projects from concept to design development, construction documentation, and construction supervision is well established. Many of our projects have received industry awards and recognition for excellence in architecture and construction.
Our Expertise
PQCAS has extensive experience in a diverse range of projects, including:
- Restoration and Preservation (historic buildings, landmarks)
- Adaptive reuse projects
- Design Built projects
- Hospitality and tourism-related projects
- Urban design and master planning
- Educational and institutional facilities
- Residential developments
- Cultural and Civic projects
- Healthcare architecture
- Religious structures

BBB A+ Accreditation
At PQCAS, we are proud to hold the Better Business Bureau (BBB) A+ Accreditation, a distinction that reflects our unwavering commitment to integrity, transparency, and excellence in customer service. This recognition underscores our dedication to upholding the highest professional standards in every transaction and relationship we build. As an accredited company, clients can trust that we operate with accountability, ethical business practices, and a consistent focus on delivering superior results and client satisfaction.

Meet our team
Behind every service we provide is a dedicated team of professionals, each bringing their unique expertise and enthusiasm to our business. You'll get to know the individuals who make it all happen. From the creative minds to the strategic thinkers, our team is our greatest asset. Learn about their backgrounds, their roles, and the passion they bring to their work every day. We believe it's the people who make the difference, and we're proud to showcase the talented individuals who drive our success. Together, we work tirelessly to deliver the best for our customers and to continually evolve and grow.
“Working with PQC Architectural Studio was a fantastic experience. Their attention to detail and creative approach resulted in a stunning design for my new home. I highly recommend their services.”
George Stanley
Meet the Principal
Pablo R. Quiñones Cordero, AIA NCARB CAAPPR SME
Pablo R. Quiñones Cordero is a seasoned architect with expertise deeply rooted in a rich tapestry of
experiences across different cities. Armed with a B.S. in Architecture from Louisiana State
University and a multifaceted educational background that include fundamentals in Civil and
Industrial Engineering, Pablo’s journey has been marked by an insatiable quest for architectural
excellence. His 38-year plus career and professional practice span many cities and professional
engagements, each contributing uniquely to his expansive perspective on architectural design.
As a licensed practicing architect, his professional journey encompassed projects in various cities
of Puerto Rico, the US Virgin Islands and consulting-design services in Miami, Florida, all
providing distinct insights into architectural nuances and design ethos. He also collaborated in
iconic Miami projects alongside prominent and international preservation architects such as Richard Heisenbottle and Hilario Candela for the Miami Marine Stadium restoration efforts, Dyer Court House, Carl Fisher Clubhouse, among others. (See below "Related Collaborations")
Through his varied practice, he delved into hospitality, multi-Family residential, educational,
institutional, urban design projects and entered the intricate world of historic preservation/adaptive
reuse design. His hospitality project Ponce Hilton Resort and Convention Center won awards for the use of exposed architectural concrete, and the current building is mostly intact through the test of time. His portfolio includes numerous buildings and offices within the Capitol of Puerto Rico, restoration works at La Fortaleza—the Governor’s Mansion—an extensive range of educational facilities from schools to universities, civic and urban projects such as Plaza San Juan Bautista, elderly housing developments, and historic restoration of churches, civic projects such as Plaza San Juan Bautista. His professional trajectory reflects a steadfast commitment to architectural excellence, heritage preservation, and the delivery of resilient, community-centered environments.
The historic preservation projects he has completed thus far involved sensible interventions of significant nationally registered buildings with endorsement and collaboration of the Puerto Rico Institute of Culture’s built Patrimony Department and the State Historic Preservation Office. His professional expertise has led him to lecture on the topic of historic preservation at the Colegio de Arquitectos y Arquitectos Paisajistas de Puerto Rico’s and in the Capitol of Puerto Rico, to inspire awareness of the delegated legacy. In his practice he also performed Construction Management Services for the: Autoridad del Financiamiento de la Infraestructura (Puerto Rico Infrastructure Financing Authority (PRIFA)), State Historic Preservation Office (SHPO) and the Puerto Rico Institute of Culture, in significant projects with demanding completion dates and limited budgets.
Pablo’s career trajectory showcases his adaptability and profound appreciation for varied
architectural styles, honed through professional practice since 1985. This extensive journey,
coupled with accolades, underscores his commitment to architectural finesse across multiple
challenges and urban environments. Through his membership in esteemed organizations like the
American Institute of Architects- Puerto Rico, Miami and Florida Chapters and the Colegio de
Arquitectos y Arquitectos Paisajistas de Puerto Rico, Pablo Quiñones continues to bridge cities
and architectural philosophies, offering a unique, multifaceted vision that enriches the architectural
landscape.
Leadership in Preservation - Restoration and Design Excellence
EDUCATION:
B.S. Architecture, Louisiana State University
Transferred to Louisiana State University under Civil Engineering
Enrolled at the University of Puerto Rico, Mayaguez Campus (CAAM)- Civil-Industrial Engineering
CERTIFICATIONS & AFFILIATIONS:
Licensed Architect Puerto Rico
Licensed Planner Puerto Rico
Licensed Architect Florida, USA
CAAPPR Affiliate
NCARB Certificate
AIA Puerto Rico Member
AIA Florida Member
Dade Heritage Trust Member
National Trust for Historic Preservation Member
DOCOMOMO Member
ICOMOS Member
World Heritage Center (UNESCO) Member
Association for Preservation Technology International Member