---
title: "51 West 81st Street #6KL, New York City, NY 10024"
description: "51 West 81st Street #6KL, New York City, NY 10024 — Upper West Side, New York City, NY. Listing Price $3,450,000. In contract 7/12/2026. 4 bed, 3 bath Illustrative Buyer Commission Share of $51,750 at closing, based on a 3% buyer-broker commission."
url: "https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10024/51-west-81st-street-kl-6KL-ny-10024"
source: "Real Estate Rebate Team"
status: "Pending"
---

# 51 West 81st Street #6KL, New York City, NY 10024

Upper West Side, New York City, NY

Courtesy of Corcoran Group

## At a Glance

- **Listing Price**: $3,450,000
- **Status**: In contract 7/12/2026
  In Contract/Lease Signed indicates an offer has been made and accepted by the seller/landlord, with the deal pending completion.
- **Beds**: 4
- **Baths**: 3
- **Common Charges**: $4,281 / mo
- **Brokerage Fee**: Share Eligible

## The Private Brokerage Advantage

As an independent luxury buyer representative, Régis shares 50% of the buyer-side commission he actually receives on your purchase. Eligible buyers receive that Buyer Commission Share directly at closing to offset closing costs, down payments, or renovations. The figures below are illustrative, based on a **3% buyer-broker commission**; your share follows the commission offered on the transaction.

- **Contract Purchase Price**: $3,450,000
- **Illustrative Buyer Commission Share**: -$51,750*
- **Illustrative Net Cost**: $3,398,250

*Illustrative Buyer Savings of $51,750 — 50% of a 3% buyer-broker commission, shared at closing.*

[Request a private tour](https://realestaterebatesnewyork.com/contact) · [Estimate your Buyer Commission Share](https://realestaterebatesnewyork.com/calculators/buyer-closing-cost-calculator)

## Photos (10)

![51 West 81st Street #6KL, New York City, NY 10024 — photo 1 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/06bc42e1-7409-4db5-816b-78ba286cbf4c.jpg)
![51 West 81st Street #6KL, New York City, NY 10024 — photo 2 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/83fd65db-29bc-4b6e-aff7-c3123d329b11.jpg)
![51 West 81st Street #6KL, New York City, NY 10024 — photo 3 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/54e3c8b7-6931-417e-954b-dcd405a6b07d.jpg)
![51 West 81st Street #6KL, New York City, NY 10024 — photo 4 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/198b08b5-ea4e-43f2-b720-7946f49e36aa.jpg)
![51 West 81st Street #6KL, New York City, NY 10024 — photo 5 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/ec268538-ea1a-4062-9ac2-cb6d03210ca7.jpg)
![51 West 81st Street #6KL, New York City, NY 10024 — photo 6 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/f07d5624-20ef-4dc6-8717-9f1636a79e5d.jpg)
![51 West 81st Street #6KL, New York City, NY 10024 — photo 7 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/cf51eff5-c434-4e4d-aa3a-10f5f8704967.jpg)
![51 West 81st Street #6KL, New York City, NY 10024 — photo 8 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/1d5fb5f3-be85-47a4-9dc5-bab5399dc107.jpg)
![51 West 81st Street #6KL, New York City, NY 10024 — photo 9 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/727fdd17-c1fe-4176-b91e-af9ef675b3ac.jpg)
![51 West 81st Street #6KL, New York City, NY 10024 — photo 10 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/4d3d59fb-5fdc-4c6b-94dc-137ab1f96f23.jpg)

## Property Overview

Just one block from Central Park on one of the Upper West Side's most desirable tree-lined streets, this sun-filled and grand scale, renovated 7-room duplex seamlessly combines sophisticated design, modern luxuries, and exceptional functionality.
 Bathed in natural light through oversized west-facing windows, this expansive home enjoys open city views and a thoughtfully designed layout offering 3 to 4 bedrooms and 3 beautifully renovated full bathrooms. Throughout the residence, special features include nearly 10' high ceilings, multi-zone central air conditioning, a built-in speaker system, top-of-line appliances, hardwood floors, custom pocket doors, and an extraordinary abundance of custom-fitted closets and storage.

 A dramatic custom staircase, highlighted by integrated lighting and open bookshelves, leads to the private lower-level primary suite, a tranquil retreat designed for ultimate comfort. Spacious enough to accommodate a separate den, media lounge, or home office, the suite is exceptionally quiet thanks to double-paned windows that showcase open city views. The luxurious spa-like primary bath is finished in marble with mosaic tile floors, a double vanity, a freestanding deep soaking tub, a seamless glass shower, and ultra-premium DXV American Standard fixtures. Completing this exceptional suite is a remarkable custom dressing room with extensive built-in storage.

 The upper level is perfectly designed for both entertaining and everyday living, featuring a loft-like expanse with an open living room, formal dining room, and chef's kitchen. Anchored by a large center island with breakfast bar seating, the kitchen is appointed with abundant custom cabinetry, stone countertops, two sinks, two Bosch dishwashers, a vented Bertazzoni gas range oven, and a built-in microwave. A beautifully renovated full bath is conveniently located off the entertaining space for guests.

 Privately tucked away from the main living areas, the quiet bedroom wing offers three bedrooms, one currently configured as a home office, and an additional renovated full bathroom.

 Ideally located moments from Central Park, the Museum of Natural History, excellent dining, shopping, and transportation options, Apartment 6KL is a rare opportunity to enjoy gracious duplex living with every modern convenience in the heart of the Upper West Side.

 51 West 81st Street, also known as The Galaxy, is an elegant prewar co-op in the heart of the Upper West Side. The Beaux-Arts building was constructed in 1903 and converted to co-op in 1979. The accommodating staff includes a doorman and resident manager. Amenities include a landscaped roof deck with multiple seating areas and panoramic city skyline and Park views, laundry on every floor, and bicycle storage. Elevators, hallways and laundry areas have all been recently updated. Pets permitted.

## Property Details

- **Property Type**: Duplex
- **Beds**: 4
- **Baths**: 3
- **Rooms**: 7
- **Stories**: 13
- **Year Built**: 1905
- **Common Charges**: $4,281 / Monthly
- **Listed On**: Jun 20, 2026
- **Days on Market**: 82 Days

### Residence Features

- Building Other
- Building Roof Deck
- Separate/Formal Dining Room
- High Ceilings
- Dishwasher
- Washer Dryer Allowed
- City

## Sales Evidence

### Recent closed sales

10 apartments at Galaxy 51 have recorded sales since September 2021, the most recent for $625,000 in March 2026. Prices are the figures recorded with the City, not asking prices.

| Unit | Beds | Sq Ft | Sold Price | $/ft² | Sold | Source |
| --- | --- | --- | --- | --- | --- | --- |
| 5A (Apartment) | Studio | 512 | $625,000 | $1,221/ft² | March 26, 2026 | City record |
| 12G (Apartment) | 1 | 500 | $849,000 | $1,698/ft² | April 15, 2025 | City record · MLS |
| 5A (Apartment) | Studio | — | $610,000 | — | November 27, 2024 | City record · MLS |
| 7L (Apartment) | 1 | — | $720,000 | — | November 26, 2024 | City record · MLS |
| 5G (Apartment) | Studio | 450 | $632,500 | $1,406/ft² | November 15, 2024 | City record · MLS |
| 4L (Apartment) | 1 | — | $665,000 | — | October 24, 2024 | City record · MLS |
| 11E (Apartment) | — | — | $660,000 | — | June 28, 2023 | City record |
| 5K/6K/6L (Apartment) | 4 | — | $2,945,000 | — | April 28, 2023 | City record · MLS |
| PHA/B (Apartment) | 1 | — | $2,300,000 | — | February 6, 2023 | MLS |
| 2K (Apartment) | — | — | $1,050,000 | — | October 4, 2022 | City record |

Every row is a recorded transaction, including ancillary spaces such as storage and staff rooms where they were sold separately. Those are excluded from the benchmark below.

### How this price compares

The median closed price for comparable co-op four-bedroom sales in Upper West Side is $2,775,000, based on 47 sales between September 2024 and June 2026. This home is asking $3,450,000, $675,000 above that median. The middle half of those sales closed between $2,262,500 and $4,071,875.

- **Median closed price**: $2,775,000
- **Middle half**: $2,262,500 – $4,071,875
- **Based on**: 47 co-op four-bedroom sales in Upper West Side
- **Period**: September 2024 – June 2026

Square footage is recorded for only 19 of these 47 sales (40%), so no price per square foot is shown for this group. Co-op sales rarely carry a floor area, and a figure drawn from a handful of them would not describe the rest.

Across the 41 of these sales with a published asking price, the median closed at 95.4% of what it originally asked. 76% of them closed below the original ask.

This building has not had enough comparable sales of its own in the period to support a median, so the benchmark is drawn from Upper West Side instead.

### How these sales were negotiated

- **Sold vs original ask**: 95.4% of the original ask
- **Closed below ask**: 76% of 41 sales
- **Listed → in contract**: 92 days (about 13 weeks)
- **In contract → closed**: 97 days (about 14 weeks)

Across the 41 of these sales with a published asking price, the median closed at 95.4% of what it originally asked. 76% of them closed below the original ask.

Half of these homes were in contract within 92 days (about 13 weeks) of coming to market, based on the 42 with a recorded listing date.

Once a deal was agreed, closing took a further 97 days (about 14 weeks), based on the 42 with both dates recorded. A co-op board package and its interview account for much of that.

These are two separate periods measured on different clocks — time to find a buyer, and time from agreed deal to closing. They are medians of different sets of sales and do not add together into a single "days on market" figure.

Based on 47 co-op four-bedroom sales in Upper West Side, September 2024 – June 2026. Each figure counts only the sales that recorded the dates it needs, which is why the denominators differ.

### Price trend

Median sold price for co-op four-bedroom sales in Upper West Side, 2017 to 2026. The series is held to one bedroom count and one ownership type for the same reason: an unfiltered median tracks which apartments sold, not what they were worth.

| Year | Median sold price | Sales |
| --- | --- | --- |
| 2017 | $4,577,500 | 16 |
| 2018 | $3,050,000 | 18 |
| 2019 | $3,850,000 | 11 |
| 2020 | $3,500,000 | 15 |
| 2021 | $3,603,333 | 27 |
| 2022 | $3,250,000 | 25 |
| 2023 | $3,375,000 | 21 |
| 2024 | $2,500,000 | 23 |
| 2025 | $3,475,000 | 24 |
| 2026 | $2,722,500 | 13 |

This building does not have enough sales with a recorded floor area to chart its own price per square foot, which is usual for a co-op. The series above follows comparable homes across Upper West Side instead.

Sale prices are the consideration recorded with the City in ACRIS, and each sale is dated by the day the City recorded it. A closing date reported to the MLS typically falls one to two weeks earlier. Recorded sales describe what has already happened and are not an appraisal, a valuation, or an estimate of what this home will sell for.

[See every recorded sale at Galaxy 51](https://realestaterebatesnewyork.com/buildings/new-york-city/manhattan/galaxy-51)

## Price and Property History for 51 West 81ST Street, Unit 6KL

Review the recorded listing activity for 51 West 81ST Street, Unit 6KL, including asking-price changes and prior market dates.

- **Entered contract**: July 12, 2026
- **Last sold**: $2,945,000 on April 28, 2023

| Date | Price | Listing event |
| --- | --- | --- |
| July 12, 2026 | $3,450,000 | Entered contract |
| June 20, 2026 | $3,450,000 | Listed for sale by Corcoran Group |
| April 28, 2023 | $2,945,000 | Sold |
| January 17, 2023 | $2,945,000 | Entered contract |
| July 18, 2022 | $3,750,000 | Listed for sale by Brown Harris Stevens Residential Sales LLC |

## Property Taxes

This apartment is part of a co-op that is taxed as one lot shared across 112 apartments. The corporation’s 2026 property tax bill was $1,353,139 for the whole building. Shareholders cover it through their monthly maintenance rather than a separate bill for this unit.

[See the full property tax history for Galaxy 51](https://realestaterebatesnewyork.com/buildings/new-york-city/manhattan/galaxy-51)

[How we source and calculate NYC property tax data](https://realestaterebatesnewyork.com/nyc-property-tax-data-methodology)

## About The Building

### Galaxy 51

Upper West Side · Duplex

51 West 81st Street, New York, NY 10024

A building in Upper West Side, currently featuring 4 active listings.

- **Year Built**: 1905
- **Total Units**: 4
- **Floors**: 13

[View the building page](https://realestaterebatesnewyork.com/buildings/new-york-city/manhattan/galaxy-51)

### Available Residences — For Sale (4)

| Unit | Beds | Baths | Size | Price / Ft² | Price | Listing Office | Listed Date | Days on Market |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| [6KL](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10024/51-west-81st-street-kl-6KL-ny-10024) | 4 | 3 | — | — | $3,450,000 — In contract | Corcoran Group | Jun 20, 2026 | 81 days |
| [5A](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10024/51-west-81st-street-a-5A-ny-10024) | Studio | 1 | 512 sqft | $1,221 | $625,000 — In contract | Sothebys International Realty | Nov 3, 2025 | 310 days |
| [10E](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10024/51-west-81st-street-10e-ny-10024) | Studio | 1 | — | — | $649,000 (-3.0%) — In contract | Corcoran Group | Mar 27, 2026 | 166 days |
| [2E](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10024/51-west-81st-street-e-2E-ny-10024) | Studio | 1 | — | — | $495,000 — In contract | Compass | Apr 8, 2026 | 154 days |

## Estimated Monthly Payment

**$21,726 / month**, assuming a 20% down payment ($690,000), a 6.5% interest rate and a 30-year term. The page's calculator lets a buyer change all three.

- **Principal & Interest**: $17,445
- **Common Charges**: $4,281

Estimates only. Actual payments may vary. Confirm terms with your lender.

## Potential NYC Second-Home Tax

This property may be subject to New York City’s non-primary residence surcharge if it is not used as a qualifying primary residence. The surcharge is based on the NYC Department of Finance market value, not the listing price.

[Estimate the Potential Surcharge](https://realestaterebatesnewyork.com/calculators/nyc-second-home-tax-calculator)

## Upper West Side

Overview of Upper West Side

[Explore Upper West Side](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/upper-west-side) · [All Neighborhoods](https://realestaterebatesnewyork.com/neighborhoods)

### Nearby Upper West Side

- [Central Park real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/central-park)
- [Upper East Side real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/upper-east-side)
- [Morningside Heights real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/morningside-heights)
- [Hells Kitchen real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/hells-kitchen)
- [Theater District real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/theater-district)
- [East Harlem real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/east-harlem)

## Related Links

- [Galaxy 51 — building page](https://realestaterebatesnewyork.com/buildings/new-york-city/manhattan/galaxy-51)
- [Upper West Side neighborhood guide](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/upper-west-side)
- [Estimate your Buyer Commission Share and closing costs](https://realestaterebatesnewyork.com/calculators/buyer-closing-cost-calculator)
- [Contact Régis Roumila](https://realestaterebatesnewyork.com/contact)

---

> RLS IDX Data display by Real Estate Rebate Team. 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. IDX information is provided exclusively for consumers’ personal, non-commercial use and it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

> All information furnished regarding property for sale, rental or financing is from sources deemed reliable, but no warranty or representation is made as to the accuracy thereof and same is submitted subject to errors, omissions, change of price, rental or other conditions, prior sale, lease or financing or withdrawal without notice. All dimensions are approximate. For exact dimensions, you must hire your own architect or engineer and the number of bedrooms listed is for informational purposes and is not a legal conclusion. Please consult with your own architect or engineer for exact dimensions and legal specifications.
