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PariSima Hassani


CEO – Managing Principal

“Great design should unfold like a great novel, song or symphony – it may be complex beneath the surface, but its message should be simple and universal.”

Beginning with a vision and a desire to share her passion and expertise for design and architecture, Sima built the firm on the belief that the best projects result from a strong partnership between Westgroup and its clients, building trust, creating memorable experiences and providing design solutions whose message is simple and universal.

As the founder and Managing Principal of Westgroup Designs, Sima ensures that the successful delivery of each and every client’s vision remains the primary focus of the project team. She leads by example, committed to working smart and leveraging the talents of her staff, while encouraging and supporting their growth and curiosity.

Leading a firm which designed the first LEED Platinum office building in Irvine, Sima continues to reinforce the importance of high performance buildings, which, when created with great value, enrich the environments where we all work, learn, serve, heal and live. Sima walks the walk, with the long term goal of having architects, designers and builders use technology and sustainability to usher the industry into a new era of design sophistication and construction excellence.

Sima recently received the coveted Entrepreneur of the Year, Orange County Global Woman Award, and welcomed the honor of having Westgroup Designs selected as one of Orange County Business Journal 2015 list of Best Places To Work.

Sima earned her Bachelor of Art and Science degree from the University of Houston, a Bachelor of Architecture from Kansas State University, and a Certificate in Campus Design from Harvard Graduate School of Design.

When it comes to those who inspire, Sima looks to creative visionaries, admiring Steve Jobs for his approach to innovation, and to Zaha Hadid for the confidence she brings to her work, by pushing the boundaries of urban and architectural design.

In her spare time, Sima advances her own boundaries of exploration, enjoying the arts, travel abroad, and spending time with family and friends who bring joy and share her passion for life.

Advice PariSima Still Lives By:
“The true sign of intelligence is not knowledge but imagination.”
– Albert Einstein