305 E 51st Street RU5A
$1,050,000
MLS# RLS20125903 · Midtown East
Listed December 10, 2025 · 338 days on the market
1 Beds 1 Baths 843 Sq.Ft.
About This Property
Introducing Unit 5A at Halcyon, a luxurious residential oasis nestled in the heart of Turtle Bay at 305 East 51st Street. This exquisite one-bedroom, one-bathroom residence boasts a generous 843 square feet of impeccably designed living space, offering an unparalleled blend of comfort and sophistication.
Built in 2015 and designed by the renowned SLCE Architects, Halcyon stands as a pinnacle of modern architectural excellence in the vibrant neighborhood of Turtle Bay. The interior of Unit 5A, curated by the esteemed S. Russell Groves, showcases a seamless fusion of style and functionality, creating a space that exudes elegance and comfort.
Residents of Halcyon are greeted by a host of unparalleled amenities, including a dedicated concierge and doorman, ensuring convenience and security at every turn. The building also features a lush garden with a firepit, a serene retreat within the bustling cityscape, as well as a library for quiet moments of relaxation.
For those seeking a wellness-focused lifestyle, Halcyon offers a swimming pool, fitness center, steam room, and sauna, providing residents with a comprehensive array of health and wellness amenities. The building also features a children's playroom and a golf simulator, catering to residents of all ages and interests.
With a total of 32 floors and 123 units, Halcyon epitomizes luxury living in the heart of Manhattan. Residents can also enjoy access to a roof deck, perfect for taking in breathtaking city views, as well as on-site parking for added convenience. Pet lovers will appreciate the pet-friendly policy, ensuring that every member of the family feels right at home.
Unit 5A at Halcyon presents a rare opportunity to experience the epitome of luxury living in one of New York City's most coveted neighborhoods. Don't miss your chance to call this exceptional residence home and indulge in a lifestyle defined by elegance, comfort, and unparalleled amenities.
Co-exclusive with Sieber International
Agent's Note
From Curtis Bain. Details about the apartment are drawn from the listing information provided through RLS by Leven Real Estate.
High ceilings, hardwood floors and a city view give this 843-square-foot one-bedroom at 305 East 51st Street in Midtown East its character. The listing credits SLCE Architects with the building and S. Russell Groves with the interior.
The kitchen has stainless steel appliances, a dishwasher and a microwave, which covers most of the daily cooking and cleanup. A washer and dryer are inside the unit, and in-unit laundry is a real everyday convenience in Manhattan, especially when the alternative is carrying a bag down to a shared room. The apartment has central air and central heating.
Building amenities include an indoor pool, a sauna, a spa, a golf simulator, a bike room and a courtyard. Pets are allowed. The listing also describes a dedicated concierge and doorman, which adds to the convenience for deliveries and guests.
The Lexington Av/53 St station, served by the 6, E and F trains, is about 4 minutes on foot. La Pecora Bianca, an Italian restaurant, is about 2 minutes away, and Morton Williams supermarket is about 4 minutes. The East River Walk is about 8 minutes from the building, and it's a easy place to walk when you want some air.
Quick answers+
Does the apartment have in-unit laundry?
Yes. A washer and dryer are in the unit.
Does the building have a pool?
Yes. The building has an indoor pool.
Does the building have a doorman?
Yes. The building has a dedicated concierge and doorman.

Curtis Bain
Brown Harris Stevens
Property Features
Policies
- Pets allowed
Home features
- Washer/dryer in unit
- Central air
- Central heating
- Hardwood floors
- City view
- Dishwasher
- Microwave
- Stainless steel appliances
- High ceilings
Building amenities
Services and facilities
- Bike room
- Elevator
- Laundry in building
Wellness and recreation
- Children's playroom
- Golf simulator
- Indoor pool
- Sauna
- Spa
Outdoor space
- Courtyard
Some building amenities are reported on other current listings in this building. Confirm amenities and building policies before relying on them.
Estimate
Monthly Cost & Closing Costs
The rate is a placeholder, not a quote. Enter the one your lender gives you.
$8,069 / month
- Principal and interest$5,309
- Common charges$1,289
- Property taxes$1,471
Due at closing
- Down payment (20%)$210,000
- NYS “mansion tax” (1%)$10,500
- Mortgage recording tax (1.925%)$16,170
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.
About the Building
305 E 51st Street is a 5-story walk-up apartments in Midtown East, completed in 1900 and home to 15 residential units. The most recent major alteration on record was in 1988.
The closest subway is Lexington Av/53 St (6, E, F), about a 4-minute walk. East River Walk is roughly 8 minutes away on foot.
Compiled from NYC public records and open data.
- Year Built
- 1900
- Stories
- 5
- Units
- 15
- Building Type
- Walk-Up Apartments
Location & Nearby
Map
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305 E 51st Street RU5A
Subway
- 6EFLexington Av/53 StAbout 4 min walk · Accessible
- 456NRW59 StAbout 13 min walk
Parks
- East River WalkAbout 8 min walk
- Queensboro OvalAbout 11 min walk
- Robert Moses PlaygroundAbout 13 min walk
Public schools · Elementary schools
- P.S. 59 Beekman Hill InternationalAbout 7 min walk
- East Side Elementary School, PS 267About 16 min walk
High schools
- Art and Design High SchoolAbout 7 min walk
Colleges & universities
- Sotheby's Institute of ArtAbout 7 min walk
- Cornell TechAbout 16 min walk
- SUNY College of OptometryAbout 20 min walk
- Rockefeller UniversityAbout 20 min walk
Museums
- Mount Vernon Hotel Museum & GardenAbout 14 min walk
- Paley Center for MediaAbout 16 min walk
- Museum of Modern Art (MoMA)About 16 min walk
- International Center of PhotographyAbout 21 min walk
Walking times are estimates. Schools shown are the nearest public and charter schools and are not zone assignments; a nearby school is not necessarily the one an address is zoned for. Confirm zoning with the NYC Department of Education. Sources: MTA, NYC Parks and NYC Department of City Planning open data.
The Neighborhood
About Midtown East
Iconic residential towers with sweeping skyline views in the heart of Manhattan's most prestigious corridor.
Walkability
9/10
Public transit
10/10
Schools
7/10
Dining
9/10
Groceries & parks
7/10
Schools in Midtown East
UNIS draws a global student body and offers an internationally recognized curriculum. Families also benefit from proximity to Upper East Side private schools within a short commute.
Private schools in the area include United Nations International School.
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Gallery
Property Photos
Listing Courtesy of Leven Real Estate
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.