Grattan Design Construction Management was founded as the next step in our evolution, building upon the legacy of our sister company, New York Wood Stairs (www.nywoodstairs.com) and New York Fine Wood Turning. What began with a passion for finely hand-carved ornamental newels and balusters through New York Fine Wood Turning 35 years ago, has grown into a next generation comprehensive construction firm specializing in construction management, renovations and adaptive re-use.
Construction management means being the owner's advocate from start to finish. We oversee every aspect of a project — schedule, budget, quality, safety, and execution — ensuring your vision is delivered with clarity and control. Every successful project involves three key players:
Our role is to represent the owner — coordinating all parties, solving problems before they happen, and driving the project forward to meet its goals. Whether it’s a historic restoration or a ground-up build, we manage complexity with confidence and deliver results with integrity.
In partnership with New York Fine Wood Turning, New York Wood Stairs and our deep-rooted expertise in one of the most complex and design-driven aspects of any home—the staircase—we have mastered everything from grand classical Victorian designs to sleek modern architecture.
Grattan Design Construction Management represents years of craftsmanship, innovation, and design excellence into the next era of construction.
Your Vision, With Precision
Kevin Valencia leads Grattan with a unique dual background in both architecture and construction contracting. His career has been defined by the pursuit of precision, value, and design integrity across every phase of the building process. To advance that mission, Kevin developed the Vision Precision Algorithm™, a proprietary system that b
Kevin Valencia leads Grattan with a unique dual background in both architecture and construction contracting. His career has been defined by the pursuit of precision, value, and design integrity across every phase of the building process. To advance that mission, Kevin developed the Vision Precision Algorithm™, a proprietary system that blends design insight, modern construction technologies, and strategic value engineering—setting a new benchmark in construction management.
In addition to Grattan, Kevin serves as Managing Principal of New York Wood Stairs, where he has overseen the fabrication and installation of highly customized stair systems for luxury townhouses, penthouses, and commercial interiors throughout NYC. His leadership style reflects a deep respect for design intent while driving performance, efficiency, and build quality to the highest level.
AJ Jabakhanji is a master craftsman and seasoned builder with a deep-rooted passion for architectural woodwork. He began his career at a young age, honing his skills in traditional wood turning, stair fabrication, and site-specific installations. As President of New York Wood Stairs, AJ has become a go-to expert for high-end stair design
AJ Jabakhanji is a master craftsman and seasoned builder with a deep-rooted passion for architectural woodwork. He began his career at a young age, honing his skills in traditional wood turning, stair fabrication, and site-specific installations. As President of New York Wood Stairs, AJ has become a go-to expert for high-end stair design and construction, known for his precision, artistry, and problem-solving on complex architectural projects.
AJ brings decades of hands-on experience to his role at Grattan, where he continues to push the boundaries of what’s possible in custom construction. From luxury residences to landmark commercial interiors like Van Cleef & Arpels and Montclair & Co., his work reflects a commitment to craftsmanship and excellence at every scale.
Founded by family and community, the love care and affection put into the craftsmanship of woodworkers evolved into the love of design and construction overall. We know how to ensure architectural elements are brought to life no matter how small the detail or how big the scope.
At Grattan Design Construction Management, we offer a wide range of services to meet your needs, including construction management, contract reviews, cost estimations, residential construction, remodeling, adaptive re-use and more. From start to finish, we are dedicated to providing you with the best possible results.
Our team is made up of experienced professionals who are passionate about what they do. We believe in working closely with our clients to ensure that their vision is brought to life. Our goal is to have your vision and design intent a reality.