St. Thomas Computer Lab
Fairfield, CT
Wm. Loeber was engaged and volunteered to renovate a high-use computer lab within an active school campus, delivering infrastructure upgrades with careful coordination to minimize disruption to ongoing academic operations.
Greenwich on the Water
Greenwich, CT
High-spec new construction on Greenwich waterfront — a market that demands exceptional quality, precision, and expertise.
J.B. Percival Co. Cocktail Bar
Fairfield, CT
J.B. Percival Co. reimagines a former novelty bag factory in Fairfield, Connecticut, into a refined craft cocktail lounge that honors the state’s industrial past.
Wm. Loeber, LLC offers luxury construction, owner’s representation, and advisory services to private clients throughout Connecticut, New York, and New Jersey. We specialize in custom residential and hospitality environments across Fairfield, Greenwich, Westport, New Canaan, Darien, Southport, Manhattan, Scarsdale, Rye, Bronxville, Alpine, and Short Hills.
OUR SERVICES
Upper West Side Brownstone
New York, NY
This renovation focused on restoring the original character of a historic Upper West Side brownstone, including repair, repointing, and custom architectural detailing.
825 5th Ave.
New York, NY
This summer only renovation on Fifth highlights our expertise working within a tight seasonal window. We delivered ultra high-end finishes and precision craftsmanship in every detail.
39 East 79th St.
New York, NY
A complete two-floor penthouse renovation in a premier Upper East Side building, featuring a significant partition reconfiguration, custom architectural millwork…

William Loeber | Principal
William is a seasoned construction professional with over 16 years of experience in luxury general contracting and owners representation. He holds an undergraduate degree in History, classics and classical texts as well as his graduate work in Construction Management both from New York University. William leads Wm. Loeber, LLC, a boutique firm specializing in custom residential and hospitality projects. His hands-on approach ensures projects are delivered on time, on budget and to the highest standards.
Rio Vista Drive
Alpine, NJ
A full renovation of a 20,000-square-foot private residence, executed with precise structural coordination, custom craftsmanship, and careful attention to scale and proportion.
300 West End Ave.
New York, NY
A full combination and renovation of two penthouse units in a premier West End building, including major structural reconfiguration, custom architectural millwork, and seamless integration of high-end finishes.
885 Park Ave.
New York, NY
This full interior renovation in a premier Park Avenue building blended architectural precision with refined material selections.