---
title: "15 Union Square #3-D, New York City, NY 10003"
description: "15 Union Square #3-D, New York City, NY 10003 — Flatiron, New York City, NY. Listing Price $4,250,000. 2 bed, 3 bath, 2,282 sqft Illustrative Buyer Commission Share of $63,750 at closing, based on a 3% buyer-broker commission."
url: "https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10003/15-union-square--d-3D-ny-10003"
source: "Real Estate Rebate Team"
status: "Active"
---

# 15 Union Square #3-D, New York City, NY 10003

Flatiron, New York City, NY

Courtesy of Peter Ashe

## At a Glance

- **Listing Price**: $4,250,000
- **Beds**: 2
- **Total Baths**: 3
- **Sqft**: 2,282
- **Common Charges**: $6,469 / mo
- **Monthly Taxes**: $4,383 / mo
- **Price per Sqft**: $1,862
- **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**: $4,250,000
- **Illustrative Buyer Commission Share**: -$63,750*
- **Illustrative Net Cost**: $4,186,250

*Illustrative Buyer Savings of $63,750 — 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)

![15 Union Square #3-D, New York City, NY 10003 — photo 1 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/c629cc7a-8030-477b-9bab-1a6f8b5e59b9.jpg)
![15 Union Square #3-D, New York City, NY 10003 — photo 2 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/903ef323-df1b-437e-b4c4-2f177665d54c.jpg)
![15 Union Square #3-D, New York City, NY 10003 — photo 3 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/e9c2b71b-62e8-4397-a7b8-5332b4f40f35.jpg)
![15 Union Square #3-D, New York City, NY 10003 — photo 4 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/4b001ab0-4225-4f3d-af59-25ee1e42756c.jpg)
![15 Union Square #3-D, New York City, NY 10003 — photo 5 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/8fc09d3c-5d66-407f-b47d-b627b80ef6b5.jpg)
![15 Union Square #3-D, New York City, NY 10003 — photo 6 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/f5c59ff3-5272-4cbf-8d7f-dd8425a5e9da.jpg)
![15 Union Square #3-D, New York City, NY 10003 — photo 7 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/f1b012eb-fb89-48b8-b6fc-20e96107ef19.jpg)
![15 Union Square #3-D, New York City, NY 10003 — photo 8 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/0f0f37ab-e62f-4605-947f-d46b262f7a94.jpg)
![15 Union Square #3-D, New York City, NY 10003 — photo 9 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/f223706a-5e06-438c-9bdb-3f3778f7442c.jpg)
![15 Union Square #3-D, New York City, NY 10003 — photo 10 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/db71250d-a3ce-4082-a005-5c6b7ce5ac34.jpg)

## Property Overview

Welcome to apartment 3D at 15 Union Square West – a stunning duplex home offering dramatic scale and refined downtown living.

This exceptional two-bedroom, two-and-a-half-bath residence features soaring 20-foot ceilings and oversized windows that flood the space with natural light, creating an airy and grand living environment rarely found in the city. The expansive living and dining area is perfect for both entertaining and everyday comfort, seamlessly complemented by a sleek, modern kitchen with premium appliances and custom finishes.

Both bedrooms are generously proportioned and thoughtfully positioned for privacy, each offering ample closet space and en-suite bathrooms. The primary suite is a true retreat, with luxurious finishes and a spa-like feel. A convenient in-unit washer and dryer and a beautifully appointed powder room complete the home.

15 Union Square West is a premier full-service condominium offering white-glove amenities including 24-hour doorman and concierge, a state-of-the-art fitness center, spa, pool, and on-site parking. Perfectly situated on Union Square Park, residents enjoy immediate access to top-tier dining, shopping, transportation, and the vibrant energy of downtown Manhattan.

A rare opportunity to live in a truly distinctive home defined by volume, light, and location.

## Property Details

- **Property Type**: Condominium
- **Beds**: 2
- **Total Baths**: 3
- **Rooms**: 5
- **Sqft**: 2,282 sqft
- **Stories**: 12
- **Year Built**: 1870
- **Price per Sqft**: $1,862
- **Common Charges**: $6,469 / Monthly
- **Monthly Taxes**: $4,383 / mo
- **Listed On**: May 4, 2026
- **Days on Market**: 133 Days

### Residence Features

- Central Air
- Building Washer Dryer Install Allowed
- In Unit
- Building Storage
- Entrance Foyer
- Dryer
- Washer
- City

## Sales Evidence

### Recent closed sales

14 apartments at 15 Union Square have recorded sales since September 2021, the most recent for $4,025,000 in October 2025. Prices are the figures recorded with the City, not asking prices.

| Unit | Beds | Sq Ft | Sold Price | $/ft² | Sold | Source |
| --- | --- | --- | --- | --- | --- | --- |
| 13 (Apartment) | 3 | 2,670 | $4,025,000 | $1,507/ft² | October 30, 2025 | City record · MLS |
| 31 (Apartment) | 2 | 2,000 | $3,850,000 | $1,925/ft² | July 3, 2025 | MLS |
| 4C (Apartment) | 1 | 1,560 | $1,700,000 | $1,090/ft² | March 10, 2025 | MLS |
| 11 (Apartment) | — | 1,560 | $1,700,000 | $1,090/ft² | March 7, 2025 | City record |
| 8 (Apartment) | — | 449 | $750,000 | $1,670/ft² | July 1, 2024 | City record |
| 9 (Apartment) | — | 2,189 | $6,450,000 | $2,947/ft² | March 8, 2024 | City record |
| 10 (Apartment) | — | 2,849 | $7,600,000 | $2,668/ft² | January 19, 2024 | City record |
| 1 (Apartment) | 1 | 755 | $1,480,000 | $1,960/ft² | September 23, 2022 | City record · MLS |
| 29 (Apartment) | 2 | 1,963 | $4,250,000 | $2,165/ft² | June 2, 2022 | City record · MLS |
| 6-F (Apartment) | Studio | 449 | $765,000 | $1,704/ft² | March 11, 2022 | MLS |
| 25 (Apartment) | — | 449 | $725,000 | $1,615/ft² | March 8, 2022 | City record |
| 8-C (Apartment) | 2 | 1,763 | $3,500,000 | $1,985/ft² | November 18, 2021 | MLS |
| #31 (Apartment) | 2 | 1,948 | $3,325,000 | $1,707/ft² | November 9, 2021 | City record |
| 17 (Apartment) | 1 | 1,263 | $2,550,000 | $2,019/ft² | September 24, 2021 | City record · MLS |

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 condo two-bedroom sales in Flatiron is $2,750,000, based on 47 sales between September 2024 and July 2026. This home is asking $4,250,000, $1,500,000 above that median. The middle half of those sales closed between $2,287,500 and $3,172,500.

- **Median closed price**: $2,750,000
- **Middle half**: $2,287,500 – $3,172,500
- **Based on**: 47 condo two-bedroom sales in Flatiron
- **Period**: September 2024 – July 2026
- **Median $/ft²**: $1,798/ft²

Across the 41 of these sales with a published asking price, the median closed at 95.7% of what it originally asked. 85% 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 Flatiron instead.

### How these sales were negotiated

- **Sold vs original ask**: 95.7% of the original ask
- **Closed below ask**: 85% of 41 sales
- **Listed → in contract**: 110 days (about 16 weeks)
- **In contract → closed**: 63 days (about 9 weeks)

Across the 41 of these sales with a published asking price, the median closed at 95.7% of what it originally asked. 85% of them closed below the original ask.

Half of these homes were in contract within 110 days (about 16 weeks) of coming to market, based on the 41 with a recorded listing date.

Once a deal was agreed, closing took a further 63 days (about 9 weeks), based on the 41 with both dates recorded.

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 condo two-bedroom sales in Flatiron, 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 price per square foot for sales at 15 Union Square, 2021 to 2024. Price per square foot is used rather than sale price so the line follows the market rather than whichever apartments happened to change hands that year.

| Year | Median $/ft² | Sales |
| --- | --- | --- |
| 2021 | $1,863/ft² | 4 (thin) |
| 2022 | $1,960/ft² | 3 (thin) |
| 2024 | $2,668/ft² | 3 (thin) |

Years marked "thin" rest on fewer than 5 sales, where a single unusual apartment moves the median a long way. Read those points as the small samples they are rather than as the market turning.

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 15 Union Square](https://realestaterebatesnewyork.com/buildings/new-york-city/manhattan/15-union-square)

## Price and Property History for 15 Union Square, Unit 3-D

Review the recorded listing activity for 15 Union Square, Unit 3-D, including asking-price changes and prior market dates.

- **Latest price change**: Reduced by $500,000, or 10.5%, on June 16, 2026
- **Originally listed**: May 1, 2026 at $4,750,000
- **Current asking price**: $4,250,000
- **Last sold**: $4,450,000 on October 20, 2017

| Date | Price | Listing event |
| --- | --- | --- |
| June 16, 2026 | $4,250,000 | Asking price reduced by $500,000, or 10.5% |
| May 1, 2026 | $4,750,000 | Listed for sale by Peter Ashe |
| October 20, 2017 | $4,450,000 | Sold |
| January 26, 2017 | $5,500,000 | Listed for sale by Stribling & Associates Ltd |
| September 30, 2016 | $4,450,000 | Asking price reduced by $545,000, or 10.9% |

## About The Building

### 15 Union Square

Flatiron · Condominium

15 Union Square, New York, NY 10003

A building in Flatiron, currently featuring 2 active listings.

- **Year Built**: 1870
- **Total Units**: 2
- **Floors**: 12

[View the building page](https://realestaterebatesnewyork.com/buildings/new-york-city/manhattan/15-union-square)

### Available Residences — For Sale (2)

| Unit | Beds | Baths | Size | Price / Ft² | Price | Listing Office | Listed Date | Days on Market |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| [3-D](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10003/15-union-square--d-3D-ny-10003) | 2 | 3 | 2,282 sqft | $1,862 | $4,250,000 (-10.5%) | Peter Ashe | May 4, 2026 | 132 days |
| [16](https://realestaterebatesnewyork.com/buy/newyorkcity/manhattan/10003/15-union-square-16-ny-10003) | 3 | 4 | 2,849 sqft | $2,806 | $7,995,000 — In contract | Triumph Property Group Ltd | Sep 30, 2025 | 348 days |

## Estimated Monthly Payment

**$32,342 / month**, assuming a 20% down payment ($850,000), a 6.5% interest rate and a 30-year term. The page's calculator lets a buyer change all three.

- **Principal & Interest**: $21,490
- **Property Taxes**: $4,383
- **Common Charges**: $6,469

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)

## Flatiron

Overview of Flatiron

[Explore Flatiron](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/flatiron) · [All Neighborhoods](https://realestaterebatesnewyork.com/neighborhoods)

### Nearby Flatiron

- [Gramercy real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/gramercy)
- [Kips Bay real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/kips-bay)
- [Chelsea real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/chelsea)
- [Greenwich Village real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/greenwich-village)
- [Murray Hill real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/murray-hill)
- [Stuyvesant Town real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/stuyvesant-town)

## Related Links

- [15 Union Square — building page](https://realestaterebatesnewyork.com/buildings/new-york-city/manhattan/15-union-square)
- [Flatiron neighborhood guide](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/manhattan/flatiron)
- [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.