---
title: "18 East 77th Street #5AB, New York City, NY 10021"
description: "18 East 77th Street #5AB, New York City, NY 10021 — Townhouse in Lenox Hill, Manhattan, NY. Listing Price $5,600,000. 3 bed, 4 bath, 2,200 sqft Illustrative Buyer Commission Share of $84,000 at closing, based on a 3% buyer-broker commission."
url: "https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10021/18-east-77th-street-ab-5AB-ny-10021"
source: "Real Estate Rebate Team"
status: "Active"
---

# 18 East 77th Street #5AB, New York City, NY 10021

Townhouse in Lenox Hill, Manhattan, NY

Courtesy of Serhant

## At a Glance

- **Listing Price**: $5,600,000
- **Beds**: 3
- **Total Baths**: 4
- **Sqft**: 2,200
- **Common Charges**: $7,673 / mo
- **Price per Sqft**: $2,545
- **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**: $5,600,000
- **Illustrative Buyer Commission Share**: -$84,000*
- **Illustrative Net Cost**: $5,516,000

*Illustrative Buyer Savings of $84,000 — 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)

![18 East 77th Street #5AB, New York City, NY 10021 — photo 1 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/4fc8d783-e9fa-44c3-b764-13e2e295cbff.jpg)
![18 East 77th Street #5AB, New York City, NY 10021 — photo 2 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/16bfe0d1-f2aa-4e64-bbdb-7b1b64840bb7.jpg)
![18 East 77th Street #5AB, New York City, NY 10021 — photo 3 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/290b8e1d-87bf-4906-a6bf-49be905f4541.jpg)
![18 East 77th Street #5AB, New York City, NY 10021 — photo 4 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/feaa93f8-d138-4d0e-9379-b42d5d98d497.jpg)
![18 East 77th Street #5AB, New York City, NY 10021 — photo 5 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/f4b18c57-b4e4-4c43-afc8-277c06de3ce2.jpg)
![18 East 77th Street #5AB, New York City, NY 10021 — photo 6 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/d9117e59-4a02-4742-8efb-06ae8abb8992.jpg)
![18 East 77th Street #5AB, New York City, NY 10021 — photo 7 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/17ce9e42-c765-43b7-bc72-67e306c59efd.jpg)
![18 East 77th Street #5AB, New York City, NY 10021 — photo 8 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/8b7d154c-4ebf-4e61-ad7e-104847ea6d12.jpg)
![18 East 77th Street #5AB, New York City, NY 10021 — photo 9 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/960cd307-7755-4547-bf99-66786c79b114.jpg)
![18 East 77th Street #5AB, New York City, NY 10021 — photo 10 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/f96ebfd2-55cd-4585-bed8-64cfe34672c9.jpg)

## Property Overview

Residence 5AB at 18 East 77th Street

 Perfectly positioned on one of the most coveted blocks on the Upper East Side, between Fifth and Madison Avenues and directly across from The Mark Hotel, Residence 5AB at 18 East 77th Street is an exceptionally rare 3-bedroom, 3.5-bathroom duplex penthouse with an impressive private terrace offering open views toward Central Park.

 Set within an intimate limestone-clad townhouse co-operative, the home offers a rare combination of classic pre-war character, townhouse-like privacy, and effortless indoor-outdoor living just off Central Park. The residence has a distinctly European sensibility, with gracious proportions, traditional detailing, and a warm, layered atmosphere throughout.

 The lower level opens through a central entry hall with tiled floors and a powder room. A spacious formal living room is anchored by a wood-burning fireplace, while French doors open to a skylit dining room wrapped in designer wallpaper. The windowed kitchen features a skylight, black marble floors, granite countertops, custom cabinetry, and stainless steel appliances.

 The primary suite is beautifully scaled and serene, with herringbone floors, a wood-burning fireplace, custom built-ins, three reach-in closets, and a charming window bench. The primary bathroom is finished with marble tilework, a pedestal sink, and a glass-enclosed rainfall shower.

 Two additional bedrooms offer flexibility for guests, family, or work-from-home needs, including a bedroom suite with two exposures and a windowed en-suite bath. Additional spaces on the lower level include a full bathroom, washer and dryer, den, and study, allowing for multiple configurations including a library, nursery, media room, or home office.

 The upper level is what makes the home truly special. A sun-filled lounge with custom built-ins and a butler's kitchen opens through three sets of French doors onto an expansive private terrace. Framed by lush planters and open exposures, the terrace offers exceptional space for outdoor dining, lounging, and entertaining, with views toward Central Park and the surrounding Upper East Side skyline.

 18 East 77th Street is a discreet and elegant townhouse co-operative with an elevator, video intercom, and just five residences. The location is among the best in Manhattan, moments from Central Park, The Met, Museum Mile, Madison Avenue shopping, The Mark, The Carlyle, the Frick Collection, renowned restaurants, galleries, caf&eacute;s, and neighborhood staples including Citarella, Butterfield Market, Eli's, and D'Agostino.

 A rare duplex penthouse combining the character and privacy of townhouse living with the convenience of a co-operative residence, all in one of the Upper East Side's most desirable locations.

## Property Details

- **Property Type**: Duplex
- **Beds**: 3
- **Total Baths**: 4
- **Rooms**: 7
- **Sqft**: 2,200 sqft
- **Stories**: 1
- **Year Built**: 1910
- **Price per Sqft**: $2,545
- **Common Charges**: $7,673 / Monthly
- **Listed On**: May 27, 2026
- **Days on Market**: 109 Days

### Residence Features

- Private Outdoor Space Over 60 Sqft
- City
- Park/Greenbelt

## Sales Evidence

### How this price compares

The median closed price for comparable co-op three-bedroom sales in Lenox Hill is $2,583,500, based on 162 sales between September 2024 and July 2026. This home is asking $5,600,000, $3,016,500 above that median. The middle half of those sales closed between $1,806,250 and $3,507,500.

- **Median closed price**: $2,583,500
- **Middle half**: $1,806,250 – $3,507,500
- **Based on**: 162 co-op three-bedroom sales in Lenox Hill
- **Period**: September 2024 – July 2026

Square footage is recorded for only 41 of these 162 sales (25%), 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 157 of these sales with a published asking price, the median closed at 94.6% of what it originally asked. 73% 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 Lenox Hill instead.

### How these sales were negotiated

- **Sold vs original ask**: 94.6% of the original ask
- **Closed below ask**: 73% of 157 sales
- **Listed → in contract**: 69 days (about 10 weeks)
- **In contract → closed**: 101 days (about 14 weeks)

Across the 157 of these sales with a published asking price, the median closed at 94.6% of what it originally asked. 73% of them closed below the original ask.

Half of these homes were in contract within 69 days (about 10 weeks) of coming to market, based on the 154 with a recorded listing date.

Once a deal was agreed, closing took a further 101 days (about 14 weeks), based on the 157 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 162 co-op three-bedroom sales in Lenox Hill, September 2024 – July 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 three-bedroom sales in Lenox Hill, 2016 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 |
| --- | --- | --- |
| 2016 | $2,397,500 | 12 |
| 2017 | $2,500,000 | 59 |
| 2018 | $2,572,500 | 54 |
| 2019 | $2,282,119 | 80 |
| 2020 | $2,167,500 | 38 |
| 2021 | $2,202,500 | 96 |
| 2022 | $2,475,000 | 108 |
| 2023 | $2,250,000 | 90 |
| 2024 | $2,460,000 | 72 |
| 2025 | $2,550,000 | 90 |
| 2026 | $2,673,000 | 55 |

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 Lenox Hill 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 18 East 77TH Street](https://realestaterebatesnewyork.com/buildings/new-york-city/manhattan/18-east-77th-street)

## Property Taxes

This apartment is part of a co-op that is taxed as one lot shared across 5 apartments. The corporation’s 2026 property tax bill was $253,800 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 18 East 77TH Street](https://realestaterebatesnewyork.com/buildings/new-york-city/manhattan/18-east-77th-street)

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

## About The Building

### 18 East 77th Street

Lenox Hill · Duplex

18 East 77th Street, New York, NY 10021

A building in Lenox Hill, currently featuring 1 active listing.

- **Year Built**: 1910
- **Total Units**: 1
- **Floors**: 1

[View the building page](https://realestaterebatesnewyork.com/buildings/new-york-city/manhattan/18-east-77th-street)

### Available Residences — For Sale (1)

| Unit | Beds | Baths | Size | Price / Ft² | Price | Listing Office | Listed Date | Days on Market |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| [5AB](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10021/18-east-77th-street-ab-5AB-ny-10021) | 3 | 4 | 2,200 sqft | $2,545 | $5,600,000 | Serhant | May 27, 2026 | 108 days |

## Estimated Monthly Payment

**$35,990 / month**, assuming a 20% down payment ($1,120,000), a 6.5% interest rate and a 30-year term. The page's calculator lets a buyer change all three.

- **Principal & Interest**: $28,317
- **Common Charges**: $7,673

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)

## Lenox Hill

Overview of Lenox Hill

[Explore Lenox Hill](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/lenox-hill) · [All Neighborhoods](https://realestaterebatesnewyork.com/neighborhoods)

### Nearby Lenox Hill

- [Inwood real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/inwood)

## Related Links

- [18 East 77TH Street — building page](https://realestaterebatesnewyork.com/buildings/new-york-city/manhattan/18-east-77th-street)
- [Lenox Hill neighborhood guide](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/lenox-hill)
- [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.
