340 East 23rd Street (Gramercy Starck)

340 East 23rd Street operates as a condominium with 24-hour doorman and concierge service and a live-in resident manager. As a condominium, there is no co-op board admission; purchases run through the condominium's application and right-of-first-refusal process. Pied-à-terre use is permitted and leasing by owners is permitted with conditions; confirm financing, leasing and ownership-entity rules in the current declaration, bylaws and house rules. Pets are permitted. The common charges, the precise sublet and pet rules, and the building's current operating posture are confirmed against the offering plan and the managing agent during due diligence.

GKV's tower provides the frame; Philippe Starck provides the experience. The common spaces are the showpiece — a full-floor lounge with a library, a screening room, and billiards; a landscaped terrace with a fireplace; and a roof deck with private cabanas — all carrying Starck's design hand. The result is a building that markets on atmosphere as much as on square footage.

Inside, the 207 residences run from studios through three-bedrooms, with penthouses at the top. Contemporary ceiling heights, oversized windows, open kitchens, and modern mechanical systems with in-unit laundry are standard. The higher floors capture the longer Gramercy, Kips Bay, and East River light. As with any new-construction condominium, floor, exposure, line, and finish state are the primary value drivers.

The amenity program is generous and designed: a 24-hour doorman and concierge, a live-in resident manager, a fitness center of roughly 2,600 square feet with sauna and steam, the full-floor Starck-designed lounge with library, screening room, and billiards, a landscaped terrace with a fireplace, and a roof deck with private cabanas. The mix leans toward service, fitness, and social and outdoor space.

The location supplies the rest. The building sits on East 23rd Street between First and Second Avenues, with Gramercy Park and Madison Square Park within an easy walk, the East River esplanade and the medical and academic corridor to the east, and the broader downtown transit network close at hand.

Recent sales

Recent closings at this building, from The Roebling Research Library. Prices are the transfer amounts recorded with the NYC Department of Finance; apartment-level detail is checked against the building’s own file in The Roebling Research Library before publishing.

Market read. Most recent trades (2026 to date) cleared a median $1,231/sf (floor-adjusted) across 3 sales. Floor-adjusted means each sale is restated to a constant mix of floors, so the figure can differ from the plain median of the sales listed above. Median listing discount 2.1% from the last ask — a recurring negotiation gap worth pricing into any offer or listing strategy.

Sales sourced from NYC Department of Finance recorded transfers (BBL 1-00928-7503; each condominium apartment is its own tax lot). Apartment-level facts (line, condition, asking-price context) curated and cross-verified in The Roebling Research Library. Not all transactions cross-verify with ACRIS records — sponsor and LLC purchases sometimes record at stipulated values rather than market price; square footage from recorded condo declarations and offering plans.

The design-plus-amenities case is the core. A Philippe Starck–designed condominium with a full amenity program offers a distinctive, atmospheric environment and contemporary finishes in a Gramercy / Kips Bay location.

The condominium process applies. There is no co-op board admission; purchases run through the condominium's application and right-of-first-refusal process. Pied-à-terre use is permitted, leasing is permitted with conditions, and pets are permitted; confirm financing, trust, LLC and investor-use rules against the offering plan and current house rules.

Floor, exposure, and finish drive value. Higher floors capture the light and the views; price each apartment on its square footage, line, and condition.

Model the full carry. Run common charges plus property taxes plus utilities and insurance carefully.

Mansion-tax thresholds can apply. At the larger units' pricing, run the numbers through the Mansion Tax Calculator.

Lead with the Starck design and the amenities. The named designer, the full-floor lounge, the cabana roof deck, and the fitness center are durable differentiators against both the older co-ops nearby and plainer glass condominiums.

Benchmark to new-construction Gramercy and Flatiron condominiums — not the older co-op stock — and position each apartment on its square footage, floor, exposure, and condition.

Closing mechanics are condominium-standard — a right-of-first-refusal rather than a board process.

If you're considering 340 East 23rd Street, also evaluate nearby Gramercy and Kips Bay inventory:

• 234 East 23rd Street — a new-construction Gramercy condominium on the same street
• 150 East 23rd Street — an ODA-designed condominium nearby
• 300 East 23rd Street — a Gramercy building on the same block
• 305 East 24th Street — a Gramercy building a block north
• 245 East 25th Street — a Gramercy/Kips Bay building nearby