This full-floor penthouse office at 166 Fifth Avenue offers a rare opportunity to lease a distinctive, character-rich workspace in the heart of Chelsea's Flatiron District. Spanning 1,200 square feet, this open-layout office is designed to maximize natural light, functionality, and architectural charm, making it an ideal space for creative firms, boutique agencies, or businesses looking for a unique and inspiring work environment.

Stepping into the space, you're immediately greeted by a vast open area with beautifully preserved hardwood floors that extend throughout the office, enhancing its warm and inviting atmosphere. The exposed brick walls add a textured, industrial aesthetic, blending historic charm with modern functionality. Overhead, two massive skylights flood the space with natural light, creating an airy and expansive ambiance that sets this office apart from traditional high-rise spaces. Recessed lighting and contemporary fixtures further illuminate the space, ensuring a well-lit and dynamic working environment.

Large operable windows along the perimeter provide additional light while offering views of the surrounding Chelsea neighborhood. With nine windows in total, the space benefits from dual exposures, ensuring bright, open sightlines and a feeling of connectivity to the outside urban landscape. The high ceilings contribute to the loft-like feel, making it an ideal setting for teams that thrive in an open and collaborative workspace.

This penthouse office is designed as a single, full-floor unit, providing both privacy and exclusivity. The primary workspace is an expansive open area, allowing for flexible workstation arrangements that can easily accommodate a collaborative team environment. This layout is perfect for companies that prioritize adaptability, whether for desks, lounge areas, or creative studio setups.
On one side of the space, a private, enclosed room can serve as an executive office, a conference room, or a team huddle space, offering versatility for different business needs. The glass partition separating this room ensures that the flow of natural light remains uninterrupted, preserving the open, airy feel of the office.

Adjacent to the main workspace, a built-in wet pantry is conveniently positioned, featuring wood cabinetry, a stainless-steel refrigerator, a sink, and countertop space, making it ideal for coffee breaks, lunch prep, or client refreshments. Nearby, a private, in-suite restroom enhances convenience and adds a level of comfort not typically found in shared office settings.
A separate storage area provides an additional functional space, ensuring that essential materials, supplies, or equipment can be neatly tucked away, maintaining the clean and uncluttered aesthetic of the office.

Built in 1900 by the Parfitt Brothers, 166 Fifth Avenue is a historic yet well-maintained office building that has been carefully modernized while retaining its original architectural character. The owner-managed property ensures personalized attention to tenant needs, offering a level of service that is often missing in larger commercial buildings.

Located at the intersection of Fifth Avenue and 21st Street, the building sits in a prime Chelsea location, steps from Madison Square Park, Union Square, and an array of top-tier dining, retail, and cultural attractions. This accessibility is further enhanced by its proximity to multiple subway lines, including the F, M, N, R, W, and 6 trains, making commuting effortless for both employees and visiting clients.

For businesses seeking an authentic, design-forward office with character, this full-floor penthouse offers a blend of historic elegance and modern convenience. With its abundance of natural light, high ceilings, exposed brick walls, and flexible floor plan, it provides an inspiring work setting that fosters creativity and productivity. The private restroom, wet pantry, and 24/7 tenant-controlled central air further enhance the space’s functionality, making it move-in ready for a variety of professional uses.
Whether you're an architectural firm, tech startup, design agency, or boutique consultancy, this office delivers a unique, loft-style atmosphere that is rarely available in today’s market.

Feature Spaces:

• 16th-floor boutique office in the Flatiron District
• 1,073 SF with a functional, efficient layout
• One glass-front office or meeting room
• Two private workspaces plus a flexible open area
• Newly installed wet pantry for added convenience
• Views of Hudson Yards and the Empire State Building
• Ample natural light from operable windows
• Exposed ceilings and polished flooring for a modern look
• Updated lobbies, hallways, and ADA-compliant bathrooms
• 24/7 secure access with attended lobby and card-key elevators
• Steps from Madison Square Park, Union Square, and major transit