405 W 23rd Street PHAB
$12,900,000
MLS# RLS20100267 · Chelsea
Listed June 26, 2026 · 122 days on the market
4 Beds 5 Baths
About This Property
Presenting a truly once-in-a-generation opportunity to create an extraordinary full-floor penthouse residence atop the iconic London Terrace Towers. Offered together, Penthouse A and Penthouse B provide a rare full-floor presence and the opportunity to seamlessly combine two exceptional homes into a bespoke 4+ bedroom penthouse oasis, crowned by expansive wraparound terraces with breathtaking 360-degree skyline views, subject to review by the purchaser’s architect and Board approval. Rarely does a residence of this scale become available, offering the coveted combination of full-floor privacy, exceptional outdoor living, and panoramic exposures in one of Chelsea’s most iconic prewar buildings.
The combined offering allows for the creation of a grand-scale home that is both elegant and highly functional, with the privacy and exclusivity typically reserved for the city’s finest penthouses. Alternatively, the residences may remain separate, preserving two beautifully appointed two-bedroom, two-bathroom penthouses ideal for guests, extended family, live-work flexibility, or any lifestyle that benefits from privacy while maintaining close connection.
Designed by the renowned architectural firm Farrar & Watmough and completed in 1930, London Terrace Towers stands among Chelsea’s most distinguished prewar cooperatives. Residents enjoy an exceptional collection of amenities, including a state-of-the-art fitness center, heated indoor swimming pool, sauna, steam room, beautifully landscaped private gardens, rooftop deck, bicycle storage, laundry facilities, and an on-site parking garage.
Perfectly positioned alongside the High Line and moments from Chelsea’s celebrated galleries, acclaimed dining destinations, cultural institutions, and vibrant theater scene, this remarkable offering presents a rare opportunity to craft a trophy penthouse residence defined by iconic views, expansive outdoor living, full-floor privacy, architectural pedigree, and limitless potential.
Penthouse A is available exclusively in conjunction with Penthouse B and is not being offered separately.
Curtis Bain
Brown Harris Stevens
Property Features
Policies
- Cats and dogs allowed
Home features
- Washer/dryer in unit
- Central air
- Hardwood floors
- City view
- Skyline view
- Dishwasher
- Entrance foyer
- Private outdoor space (over 60 sq ft)
- Building terrace
- Building wrap around
Building amenities
Services and facilities
- Bike room
- Elevator
- Garage parking
- Laundry in building
- Security system
- Storage space
Wellness and recreation
- Gym
- Health club
- Indoor pool
- Sauna
- Steam room
- Yoga studio
Outdoor space
- Roof deck
Estimate
Monthly Cost & Closing Costs
The rate is a placeholder, not a quote. Enter the one your lender gives you.
$79,965 / month
- Principal and interest$65,229
- Maintenance$14,736
Due at closing
- Down payment (20%)$2,580,000
- NYS “mansion tax” (3.25%)$419,250
Co-op share loans aren't subject to mortgage recording tax. Not included: attorney, title insurance, lender and appraisal fees, board application and move-in fees, flip tax and prepaid items. Estimates only, based on the published New York State rates. Your attorney and lender will confirm the real figures.
Gallery
Property Photos
Listing Courtesy of Sothebys International Realty
This information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. ©2026 The Real Estate Board of New York, Inc., All rights reserved.
