About
O’Neill Development was founded in 1975 by Brendan O’Neill Sr., built on a foundation of quality craftsmanship, integrity, and personalized service. Over the years, the company has earned a strong reputation for excellence in custom design and construction, creating distinctive homes and commercial spaces across Maryland. Today, the legacy continues with Brendan O’Neill Jr., ensuring the same dedication to superior building standards and client-focused service. With decades of experience and a passion for bringing visions to life, O’Neill Development remains a trusted name in the industry.
At O’Neill in Maryland Development, we believe your home should be as unique as you are. Our passion is bringing your vision to life with expert craftsmanship, personalized design, and a commitment to quality. From concept to completion, we work closely with you to create a home that reflects your style, needs, and dreams.
O’Neill Development has built a reputation for excellence in custom design and construction, delivering high-quality, tailored spaces that reflect the unique vision of each client. Founded with a passion for craftsmanship and innovation, our company has grown into a trusted name in the DMV area, known for creating stunning residential projects. With years of experience, a commitment to precision, and a client-focused approach, we bring ideas to life from concept to completion. Whether it’s a luxury home, a major renovation, or a commercial build, O’Neill in Maryland Development is dedicated to exceptional results and personalized service.