1 West 123rd Street, New York City, NY 10027

Townhouse in South Harlem, Manhattan, NYCourtesy of Brown Harris Stevens Residential Sales LLC

Last updated:

1 West 123rd Street, South Harlem, Manhattan, NY 10027 - Main property photo
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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 beside this are illustrative, based on a 3% buyer-broker commission; your share follows the commission offered on the transaction.

Contract Purchase Price$6,500,000
Illustrative Buyer Commission Share-$97,500*
Illustrative Net Cost$6,402,500
Listing Price
$6,500,000
Common Charges—
Monthly Taxes$941 / mo
Price per Sqft$542
Brokerage FeeShare Eligible
6
Beds
5
Total Baths
11,995
Sqft
Illustrative Buyer Savings
+$97,500*
50% of a 3% buyer-broker commission, shared at closing
Regis Roumila

Regis Roumila

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NYDOS LIC#: 10491211335

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Property Overview

1 West 123rd Street --- 31 Mt Morris Park West

Winner of the 2022 LUCY G. MOSES PRESERVATION Award

THE JOHN DWIGHT HOUSE - PAST IS PROLOGUE

NOW REDUCED BY NEARLY $1,000,000

Following the lead of McKim, Mead & White, this house was built in 1890 in the neo-Renaissance Revival style by architect Frank Hill Smith for John Dwight. It was erected during The Gilded Age (from 1875 to 1900 or 1910), and financed by his baking soda empire, Arm and Hammer. This product dominated the market from 1873 onward and is still popular today. Frank Hill Smit...

Property Details

PROPERTY TYPESingle Family Residence
BEDS6
TOTAL BATHS5
ROOMS15
SQFT11,995 sqft
STORIES5
YEAR BUILT1910
PRICE PER SQFT$542
MONTHLY TAXES$941 / mo
LISTED ONNov 24, 2025
DAYS ON MARKET317 Days
 

Residence Features

•In Unit
•Private Outdoor Space Over 60 Sqft
•Smoke Free

Estimated Monthly Payment

$33,809/ month
Principal & Interest$32,86897% of totalProperty Taxes$9413% of total
Down Payment$1,300,000 (20%)
Interest Rate6.5%
Loan Term
Principal & Interest
$32,868
Property Taxes
$941

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

Sales and market data

How this price compares

This home
$6,500,000
Median sold price
$2,800,000
Difference
+$3,700,000 (+132.1%)
This home, $/ft²
$542
Median $/ft²
$753
Comparable sales
5
Sales from
Apr 2022 – Jul 2026

Based on house sales in South Harlem.

More market data
Middle half of those sales
$1,960,000 – $2,999,999

A house is not part of a building of comparable apartments, so this benchmark is drawn from house sales across South Harlem. Apartment sales are excluded from it entirely.

How these sales were negotiated

Sale-to-list price
89.6%
Sold below asking
100%
Typical time to find a buyer
90 days
Typical time to close
52 days

Based on house sales in South Harlem with the required listing and closing data. Sample sizes vary by metric.

Sales data through July 2026.

Sale prices and dates are based on NYC ACRIS records. MLS closing dates may differ. Historical sales are not an appraisal or valuation of this property.

Property Tax History

Taxes at 1 West 123rd Street were $11,865 in 2026, up 4.1% from 2025.

New York City Department of Finance property tax history for 1 West 123rd Street, 2010 to 2026
YearTax AssessmentLandAdditionsBillable ValueProperty TaxTax Rate
2026FY 2026/27$115,650$38,700$76,950$110,250$11,86510.762%Estimated
2025FY 2025/26$112,950$38,700$74,250$105,930$11,40010.762%Estimated
2024FY 2024/25$111,150$38,700$72,450$106,560$11,46810.762%
2023FY 2023/24$108,900$38,700$70,200$106,830$11,31510.592%
2022FY 2022/23$102,600$38,700$63,900$102,600$10,92310.646%
2021FY 2021/22$94,050$38,700$55,350$94,050$10,11510.755%
2020FY 2020/21$116,100$38,700$77,400$107,010$11,44410.694%
2019FY 2019/20$112,500$38,700$73,800$102,060$10,75410.537%
2018FY 2018/19$108,000$38,700$69,300$96,660$10,16310.514%
2017FY 2017/18$101,700$38,700$63,000$90,900$9,55710.514%
2016FY 2016/17$96,750$38,700$58,050$86,400$9,13610.574%
2015FY 2015/16$91,350$38,700$52,650$82,890$8,83310.656%
2014FY 2014/15$85,500$38,700$46,800$80,820$8,63510.684%
2013FY 2013/14$79,200$38,700$40,500$79,020$8,15710.323%
2012FY 2012/13$79,200$38,700$40,500$76,854$7,90710.288%
2011FY 2011/12$79,200$38,700$40,500$73,702$7,48210.152%
2010FY 2010/11$81,000$38,700$42,300$69,653$7,18310.312%

The City has not published the official FY2026/27 and FY2025/26 tax rates yet. We calculated the tax for those years using the prior year’s rate, so treat them as an estimate rather than a figure the City has adopted. Every rate without the Estimated marker is the published one.

Tax Assessment is the assessed value on the City’s roll, and it is the figure other listing sites publish. It is not what the bill is calculated on. New York phases assessment changes in gradually for some tax classes, so the City bills the Billable Value shown beside it, less any exemption the owner holds. It usually trails the assessment, and it can sit above it for a few years after an assessment falls.

Figures are the New York City Department of Finance assessment roll for tax lot 1017210052. Assessed and billable values are determined by the City for tax purposes and are not an appraisal or an estimate of market value. Tax classes and rates are set annually and can change.

About The Building

1 West 123rd Street
South Harlem · Townhouse

1 West 123rd Street

1 West 123RD Street, New York, NY 10027

A Townhouse in South Harlem built in 1910.

YEAR BUILT1910
ACTIVE UNITS1
FLOORS5

Interested in 1 West 123rd Street?

Consult Régis for private buyer guidance, off-market opportunities, building financials, board package requirements, closing costs, and potential Buyer Savings.

Available Residences

N/A6411,995 sqft$542
$6,500,000
Brown Harris Stevens Residential Sales LLCNov 24, 2025317 days

In the Neighborhood

Nearby Schools

Saint Benedict Day Nursery and Kindergarten0.06 miles
Public School 790.26 miles
Public School 1470.29 miles
Public School 760.34 miles
All Saints School0.41 miles

* Distances are approximate line-of-sight metrics.

Map

South Harlem

Overview of South Harlem

South Harlem is the gateway to Harlem. For buyers seeking South Harlem Manhattan real estate, it offers prime location. Living in South Harlem is vibrant. As a Manhattan NYC neighborhood, it connects downtown.

Real Estate

Homes for sale in South Harlem are competitive.

Lifestyle

The lifestyle is dining-focused.

Transportation

B/C/2/3 trains.

Amenities

Central Park acces.

Best For

Commuters.
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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.