Garrison Hill
Group
WELCOME
Garrison Hill Group is a Premier Construction Consulting Firm that specializes in helping corporate tenants and landlords efficiently manage office build-outs, renovations, and relocations.
Construction Management & Owners Rep Firm
Garrison Hill Group is a construction consulting firm that specializes in helping corporate tenants and landlords efficiently manage office build-outs, renovations, and relocations. Our team is dedicated to providing expert guidance and support throughout the entire construction process, ensuring that projects are completed on time and within budget.
Our Expertise
At Garrison Hill Group, we offer a comprehensive range of services to meet the unique needs of our clients. From project planning and cost estimation to quality control and vendor management, our team is committed to delivering exceptional construction management solutions.
Project Oversight
Managing construction projects requires meticulous oversight and strategic decision-making. We specialize in budget control and project management to keep your projects on track.
Quality
Control
We prioritize quality control measures to guarantee that the highest standards are met throughout every phase of the construction process.
Vendor Management
Efficient vendor management is crucial for the success of construction projects. Our team excels in vendor selection, negotiation, and oversight to ensure optimal project outcomes.
FF&E
Management
FF&E is crucial for a seamless project delivery. From procurement and vendor coordination to installation and final placement. We ensure that every element aligns with project timelines and design intent.
Timeline Management
Timely project completion is essential for the success of any construction endeavor. Our team is adept at creating and managing realistic project timelines to ensure on-time delivery.
Risk
Mitigation
Identifying and mitigating risks is crucial for minimizing potential disruptions to construction projects. Our experts are skilled in risk assessment and proactive risk management strategies.
About
Dermot J. O'Sullivan
With nearly 20 years of experience in commercial real estate and construction, I’ve built a career on delivering complex projects with precision, efficiency, and a relentless focus on quality. From my early days as a carpenter to leading multimillion-dollar projects as a Director of Design & Construction, I’ve developed a deep understanding of what it takes to successfully execute a project, from concept to completion.
I specialize in overseeing design, preconstruction, construction, and post-construction efforts for corporate offices and hospitality spaces, ensuring every project is delivered on time, on budget, and to the highest standards. My ability to bridge the gap between owners, tenants, architects, engineers, and contractors has allowed me to drive projects forward with clarity, efficiency, and exceptional results.
Beyond execution, I bring a strategic and collaborative leadership approach, fostering strong relationships with stakeholders while managing teams and processes that turn vision into reality. I thrive in high pressure, fast moving environments, where my expertise in budgeting, scheduling, problem solving, and risk mitigation ensures projects stay on track.
But success in construction isn’t just about building spaces, it’s about building people. I am deeply committed to mentorship and leadership development, sharing knowledge and empowering others to grow in the industry just as I have.
Whether it’s managing complex renovations, leading high-profile commercial interiors, or ensuring seamless execution on fast-track projects, my passion remains the same: delivering excellence in every detail.
Ready to Get Started?
Whether you're planning an office build-out, renovation, or relocation, Garrison Hill Group is here to support you at every step of the way. Contact us today to schedule a consultation and take the first step towards successful construction management.