Two AI Companies Ink Full-Floor Deals at 61 West 23rd Street

# AI Firms Lock Down Full Floors in Flatiron as Tech Tenants Reshape Manhattan Office Market

Two artificial intelligence companies have signed major leases at 61 West 23rd Street in Manhattan's Flatiron District, marking another wave of tech tenant demand reshaping the city's office landscape.

Normal Computing and Inspiren each leased full floors at the building, totaling 16,734 square feet combined. Cushman & Wakefield brokered both transactions on behalf of the landlord, the Zegna family and Taconic Partners. Connor Daugstrup represented the landlord in the deal.

The building sits between Fifth Avenue and Avenue of the Americas in one of Manhattan's most competitive office neighborhoods. Flatiron has transformed over the past five years from a media and publishing hub into a magnet for technology and AI startups seeking Manhattan presence without paying Midtown premium rents.

Neither company disclosed lease terms or rental rates. However, asking rents in the Flatiron submarket have climbed to $70 to $85 per square foot annually for quality office space, according to recent market data. At that range, the combined deal represents roughly $1.17 million to $1.42 million in annual rent, depending on specific deal structures and tenant improvement allowances.

The dual lease illustrates a broader pattern. AI companies and generative AI startups have become the most aggressive office space takers in Manhattan over the past 18 months. Unlike traditional tech firms that downsized during the pandemic, AI startups expand rapidly and require concentrated office footprints for engineering teams and client meetings.

Normal Computing and Inspiren join other AI-focused tenants now occupying Manhattan office space. These firms tend to sign multi-year leases rather than short-term deals, providing landlords with revenue stability in a market still recovering from pandemic-era vacancy spikes.

For landlords like Zegna and Taconic Partners, the leases deliver occupancy gains in a 500,000-square-foot building. Manhattan office occupancy stood at 85.1 percent across the borough in early 2024, still below pre-pandemic levels. Buildings with quality finishes and location appeal attract the highest-caliber tenants willing to commit to longer terms.

For the Flatiron submarket specifically, these deals matter. Sustained AI company leasing activity signals that neighborhood rents can stabilize or appreciate. Landlords with vacant or soon-to-be-vacant floors can now ask for higher rates when competing for tech tenants.

Existing Flatiron office tenants benefit from the activity as well. Heavy tech presence boosts foot traffic, supports nearby restaurants and services, and increases the neighborhood's appeal for additional corporate relocations.

For other Manhattan office landlords struggling with older Class B or Class C properties, the story differs. Zegna and Taconic's building features the finishes and technical infrastructure modern AI companies demand. Outdated buildings without fiber optic infrastructure, flexible floor plates, or climate control systems suitable for server equipment remain less competitive.

Cushman & Wakefield's brokerage activity at 61 West 23rd reflects the firm's position as Manhattan's dominant office leasing advisor. The brokerage manages roughly 35 percent of office leasing volume across the borough, giving it consistent visibility into which tenant categories are moving and where capital is flowing.

The Flatiron district now contains roughly 2 million square feet of office space. With AI firms actively signing full-floor commitments, the neighborhood positions itself as a genuine alternative to Midtown's traditional office core for companies prioritizing innovation, talent retention, and collaborative workspace design.