Off Market1989d on marketHistoric · 110 yrs

521 Round Hill Rd

Greenwich, CT, 06831 • 06831 • Fairfield County

$20,579,600

$1169/sqft

9Beds

10Baths

17,603Sqft

9.2 acLot

1916Built

Property DNA

1 highlights

Colonial Style

Built 1916 · 110 years of history

Market activity

Demand and pricing signals for this listing

24 views

People checking out this listing

1989 days on market

Established listing

$1,169/sqft

Price per square foot

About this home

Single Family · Built 1916 · Historic

This 17603 square foot single family home has 9 bedrooms and 10.0 bathrooms. This home is located at 521 Round Hill Rd, Greenwich, CT 06831.

Estimated monthly payment

Based on current rates

$134,223/month

Principal & Interest$106,783

Property Tax$20,580

Insurance$6,860

Down payment20% ($4,115,920)

3%50%

Est. 6.75% rate · 30yr fixed · $16,463,680 loan

Full calculator →

At a glance

Key facts and listing details

TypeSingleFamily

Year Built1916

HeatingForced air

ParkingNo Data

Lot9.16 Acres

Property

Home typeSingle Family

StyleColonial

Year built1916

Systems

HeatingForced air

RoofShake / Shingle

Constructionbrick

Parking & Outdoor

Lot9.16 Acres

Location & Tax

Neighborhood06831

Annual tax$152,159

ParcelGREEM10B2876

Features & details

3 categories of property features

Interior Features

Heating

Forced air

Exterior Features

Exterior

Brick

Construction

brick

Listing insights

Market data and value estimates

StatusOff Market

Days on market1989

Est. value$20,579,600

Est. rent$98,828/mo

Tax rate1.69%

Price/sqft$1169

Last sold$16,500,000

Tour days6

How are the schools in Greenwich?

3 schools rated nearby

Parkway School

Elementary • Public • K-5

0.7 mi

Western Middle School

Middle • Public • 6-8

7.2 mi

Greenwich High School

High • Public • 9-12

5.9 mi

Location

Greenwich, CT, 06831

Expand map

Price history

2 events

DateEventPrice$/sqftSource

Nov 2, 2020Sold$16,500,000$937Agent Provided

Oct 4, 2010Sold$35,000,000$1,988Agent Provided

Sold$16,500,000

Nov 2, 2020•$937/sqft•Agent Provided

Sold$35,000,000

Oct 4, 2010•$1,988/sqft•Agent Provided

Tax history

11 years of records

YearTax paidAssessed value

Apr 15, 2025$152,159$12,637,800

Apr 15, 2024$147,989$12,637,800

Apr 15, 2023$143,945$12,637,800

Apr 15, 2022$142,554$12,637,800

Apr 15, 2021$151,645$13,084,120

Apr 15, 2020$151,645$13,084,120

Apr 15, 2019$152,823$13,084,120

Apr 15, 2018$148,766$13,084,120

Apr 15, 2017$148,766$13,084,120

Apr 15, 2015$172,445$15,301,230

Apr 15, 2014$131,846$12,018,790

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Neighborhood details

Local context around this listing

Greenwich, CT • Fairfield County

Nearby neighborhoods

ByramCos CobGlenvilleIndian FieldOld GreenwichPemberwickRiversideRock Ridge

Nearby cities

BridgeportDanburyFairfieldGreenwichNewtownNorwalkSheltonStamford

Nearby zip codes

06807068300683106832068360687006878

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Value estimates

Live

Est. value$20,579,600

Est. rent$98,828/mo

Affordability$136,999/mo

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