OFF MARKET

Off market nov 2020 for $16M

$9,626,055

Est. refi paymentEst. refi $215,329/mo

•

17,603

sq ft

521 Round Hill Rd, Greenwich, CT 06831

About this home

ROUND HILL MANOR IS ONE OF THE GREAT ESTATES IN GREENWICH SITTING ON THE CREST OF A MAGNIFICENT PLATEAU OVERLOOKING MORE THAN 40 HIGH, OPEN ACRES WITH PANORAMIC VIEWS OF LONG ISLAND SOUND. IMPRESSIVE GATES OPEN TO THE WINDING DRIVEWAY THROUGH A CURVED ALLEE OF STATELY TREES TO A GRAND COURTYARD. AT 500 FT IN ELEVATION, THIS BREATHTAKING PROPERTY HAS MAJESTIC SPECIMEN TREES, OLD STONE WALLS AND PARK-LIKE ROLLING LAWNS WITH STUNNING EAST, WEST AND SOUTH VIEWS FOR THE UTMOST IN PRIVACY. EXCEPTIONAL QUALITY, CHARACTER AND SCALE COMBINED WITH A METICULOUS 3 YR COMPLETE RENOVATION WITH STATE-OF-THE-ART SYSTEMS OFFERS A TIMELESSNESS THAT IS WITHOUT EQUAL. LISTING TEAM AND SELLING TEAM: BILL ANDRUSS, JOSEPH BARBIERI AND LESLIE MCELWREATH.

Single-familyProperty Type

1916Year Built

40.26 acresLot Size

$547Est. Price/Sq.Ft.

5 car garageParking

Listed by William Andruss Jr. • Sotheby's International Realty

Listed by Leslie McElwreath • Sotheby's International Realty

Bought with William Andruss Jr. • Sotheby's International Realty

Redfin checked: 2 minutes ago

•Source:GMLS #97089

Redfin Estimate

$9,626,055

$6.9M since sold in November 2020$345K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 353.8% higher than the average sale price ($2.12M) of 6 comparable homes.

SOLD AUG 17, 2026
$2,032,500
A
5 beds5.5 baths6,108 sq ft
16 Carolyn Pl, Armonk, NY 10504
Listing by Houlihan Lawrence Inc.
SOLD SEP 14, 2026
$2,875,000
B
4 beds6.5 baths7,500 sq ft
10 Hidden Oak Rd, Armonk, NY 10504
Listing by Howard Hanna Rand Realty
SOLD AUG 13, 2026
$1,830,000
C
4 beds3 baths3,672 sq ft
734 King St, Chappaqua, NY 10514
Listing by Compass Greater NY, LLC
SOLD DEC 5, 2025
$2,060,000
D
5 beds4.5 baths4,172 sq ft
77 Haights Cross Rd, Chappaqua, NY 10514
Listing by Julia B Fee Sothebys Int. Rlty
SOLD JUN 15, 2026
$2,005,000
E
5 beds4 baths4,321 sq ft
301 Bear Ridge Rd, Pleasantville, NY 10570
Listing by Coldwell Banker Realty
SOLD AUG 14, 2026
$1,925,000
F
5 beds4.5 baths4,058 sq ft
765 King St, Chappaqua, NY 10514
Listing by Compass Greater NY, LLC

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Earn from this home

Sell

−$2,579,565

Est. take-home

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Refinance

Est. cash available

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Market trends in 06831, CT

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

104.3%

+1.1% MoM

Median sale price

$2.6M

$88K MoM

Avg. days on market

21d

9 days MoM

Recently sold homes

6 MoM

New listings for sale

$5,295,000
5 beds7.5 baths7,048 sq ft
30 Hope Farm Rd, Greenwich, CT 06830
$48,000,000
3 beds6 baths34,006 sq ft
114 John St, Greenwich, CT 06831
$10,950,000
6 beds6.5 baths7,400 sq ft
15 Zaccheus Mead Ln, Greenwich, CT 06831
$749,000
2 beds2 baths911 sq ft
2 Homestead Ln #407, Greenwich, CT 06831
$2,350,000
3 beds3 baths2,717 sq ft
7 Flower Ln, Greenwich, CT 06831
$34,995,000
5 beds7.5 baths14,131 sq ft
14 Meadow Ln, Greenwich, CT 06831
$29,900,000
6 beds6.5 baths6,910 sq ft
500 Round Hill Rd, Greenwich, CT 06831
VIDEO TOUR
$30,000,000
5 beds6 baths6,595 sq ft
38-48-58 Quaker Ln, Greenwich, CT 06831
$21,950,000
7 beds9.5 baths11,229 sq ft
11 Skyridge Rd, Greenwich, CT 06831
3D WALKTHROUGH
$6,850,000
8 beds10.5 baths11,300 sq ft
273 Riversville Rd, Greenwich, CT 06831
See all

Provided by Redfin

Sale history for 521 Round Hill Rd

Date

Event

Price

GMLS #97089

Nov 2, 2020

Sold

$16,500,000

$937/sq ft

Nov 2, 2020

Sold

Oct 2, 2020

Pending

—

Sep 1, 2020

Contingent

—

Oct 30, 2019

Price Changed

$16,500,000

$937/sq ft

Jun 7, 2019

Price Changed

$18,995,000

$1,079/sq ft

Jan 18, 2019

Price Changed

$22,500,000

$1,278/sq ft

Jun 15, 2016

Listed

$28,995,000

$1,647/sq ft

Jun 15, 2016

Listed

$16,500,000

$937/sq ft

+26

GMLS #90967

Jul 18, 2014

Listed

$58,000,000

$3,295/sq ft

GMLS #79761

Jun 20, 2011

Listed

$42,900,000

$2,437/sq ft

Public Records

Oct 5, 2010

Sold

$31,502,100

$1,790/sq ft

GMLS #75366

Oct 5, 2010

Sold

$35,000,000

$1,988/sq ft

Feb 1, 2010

Listed

$55,000,000

$3,124/sq ft

GMLS #74183

Aug 20, 2009

Listed

$60,000,000

$3,409/sq ft

GMLS #69461

Apr 14, 2008

Listed

$75,000,000

$4,261/sq ft

Year

Property tax

Land + Additions

Assessment*

2023

$23,213 (+1.0%)

$1,495,690 + $542,290

$2,037,980

2022

$22,988 (+6.7%)

$1,495,690 + $542,290

$2,037,980

2021

$21,536

$1,300,600 + $557,550

$1,858,150

2020

$21,536 (−0.8%)

$1,300,600 + $557,550

$1,858,150

2019

$21,703 (+2.7%)

$1,300,600 + $557,550

$1,858,150

2018

$21,127

$1,300,600 + $557,550

$1,858,150

2017

$21,127 (+1.5%)

$1,300,600 + $557,550

$1,858,150

2016

$20,811 (+15.8%)

$1,300,600 + $557,550

$1,858,150

2014

$17,965

$1,467,130 + $170,520

$1,637,650

Tax history for 521 Round Hill Rd

Year

Property tax

Land + Additions

Assessment*

2023

$23,213 (+1.0%)

$1,495,690 + $542,290

$2,037,980

2022

$22,988 (+6.7%)

$1,495,690 + $542,290

$2,037,980

2021

$21,536

$1,300,600 + $557,550

$1,858,150

2020

$21,536 (−0.8%)

$1,300,600 + $557,550

$1,858,150

2019

$21,703 (+2.7%)

$1,300,600 + $557,550

$1,858,150

2018

$21,127

$1,300,600 + $557,550

$1,858,150

2017

$21,127 (+1.5%)

$1,300,600 + $557,550

$1,858,150

2016

$20,811 (+15.8%)

$1,300,600 + $557,550

$1,858,150

2014

$17,965

$1,467,130 + $170,520

$1,637,650

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Public record

Beds

Baths

Stories

Lot width

—

Lot depth

—

Lot size

4.54 Acres

Year renovated

—

Sq. Ft.

2,090

Year built

1916

Style

Multi-Family (2-4 Unit)

County

Fairfield County

APN

1848941

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jul 13, 2023.

Property details

Parking

Parking and Garage Information
Has Garage
# of Garage Spaces: 5
Parking Features: Electric Gate

Interior

Virtual Tour Information

Bathroom Information
# of Full Bathrooms: 8
# of Half Bathrooms: 4
Bathrooms Total Integer: 12
Bathrooms Total Decimal: 10

Heating & Cooling
Has Cooling
Cooling: Central A/C
Has Heating
Heating: Hydro-Air, Propane

Interior Features
Interior Features: Sep Shower, Kitchen Island, Pantry, Back Stairs, Elevator, Bookcases
Has Fireplace(s)
# of Fireplaces Total: 11
Basement: Unfinished

Exterior

Property Information
Property Sub-Type: Single Family Residence
Year Built: 1916
Year Built Effective: 2014
Roof: Tile
Construction Materials: Brick
Other Structures: Carriage House
Security Features: Security System
Other Equipment: Generator
Building Area Total: 17603.0
Building Area Source: Taxcard

Lot Information
Lot Features: Meadow, Rolling
On Waterfront
Waterfront Features: Waterviews
Lot Size Area: 40.26
Lot Size Units: Acres
Lot Size Square Feet: 1753725.6
Lot Size Acres: 40.26
Zoning: RA-4

Financial

Tax Information
Tax Annual Amount: $234,937.06
Tax Assessed Value: $20,270,670

Utilities

Utilities Information
Utilities: Propane
Sewer: Septic Tank
Water Source: Well

Location

School Information
Elementary School: Parkway
Middle Or Junior School: Western

Public facts

Beds: 4
Baths: 2.0
Sq. Ft.: 2,090
Stories: 2.0
Lot Size: 4.54 acres
Style: Multi-Family (2-4 Unit)
Year Built: 1916
Year Renovated: —
County: Fairfield County
APN: 1848941

Home facts updated by county records on Jul 12, 2023

Around this home

Schools

Parkway School

Public K-5 • Assigned • 0.6mi

10/10

Western Middle School

Public 6-8 • Assigned • 7.1mi

8/10

Greenwich High School

Public 9-12 • Assigned • 5.6mi

10/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

3/10 Fire Factor

0.31% chance of being in a wildfire in next 30 years

4/10 Heat Factor

7 days above 98° expected this year, 14 days in 30 years

6/10 Wind Factor

27% chance of strong winds in next 30 years

4/10 Air Factor

5 unhealthy days expected this year, 7 days in 30 years

Provided by First Street

Historical weather

Greenwich, CT • 06831

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 8.7 hours in June and 4.3 hours in December, placing it below the U.S. average for solar exposure.

8.7 hrs

4.3 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$9.15M – $11.07M

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Home values near 521 Round Hill Rd

Data from public records.

Address	Redfin Estimate
550 Round Hill Rd, Greenwich, CT 8 Beds \| 11 Baths \| 13268 Sq. Ft.	$11,929,385
557 Round Hill Rd, Greenwich, CT 6 Beds \| 6.5 Baths \| 7365 Sq. Ft.	$6,682,669

Address	Redfin Estimate
542 Round Hill Rd, Greenwich, CT 5 Beds \| 5 Baths \| 4313 Sq. Ft.	$6,436,646
516 Round Hill Rd, Greenwich, CT 6 Beds \| 8 Baths \| 9436 Sq. Ft.	$9,748,892

Address	Redfin Estimate
538 Round Hill Rd, Greenwich, CT 5 Beds \| 5 Baths \| 6205 Sq. Ft.	$6,384,114
512 Round Hill Rd, Greenwich, CT 7 Beds \| 9.5 Baths \| 9888 Sq. Ft.	$11,148,420

Property information provided by GMLS when last listed in 2016. This data may not match . Learn more.

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