Go from Predictable to O'MG.

Founded in 1974 by Jack O’Brien, our firm was built on the idea that people can achieve like a team and still treat each other like family.

The family has grown, but our culture remains surprisingly unchanged. That’s because we take care to work with people who share and support our values.The family-based firm has a long-standing reputation for its innovative design solutions with unique visioning and animation services.

With more than 4,500 projects completed nationwide, O’Brien Architects serves clients in a variety of market sectors including: office, multi-family, retail, mixed-use, industrial, assisted living, healthcare, civic, and interiors.

  • Interior Renovation
    Plano, Texas


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  • Dallas, TX
    Owner: Billingsley Company

    3401 & 3501 Olympus

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  • Multi-Family
    Frisco, Texas
    17 Stories + 158 Units

    Twelve Cowboys Way

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  • Master Planning
    Farmers branch, Texas


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  • Interiors
    McKinney, Texas


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Studio Focus.

We lead, but we don’t force our ideas onto your architecture. Instead, we invite clients to participate in our creative charrettes. We check our egos at the door, and no idea is out of bounds. We avoid working strong ideas into the ground or applying a “signature style”.

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Big Design without Big Egos.

About Us

O’Brien Architects embodies the character of its founding President, Jack O’Brien. His emphasis on integrity, respect, and service has shaped our corporate culture. By adhering to this value system, our team has established a loyal client base and has developed professional relationships that span decades.

Our work is challenging. We push ourselves to be excellent at it and have a good time doing it. We create an experience with clients that is creative, friendly, professional, and open.

Meet the Team

Brands we've served.