Beautifully maintained & stylishly reimagined for today's lifestyle, this exceptional 7-bedroom home offers privacy, comfort & resort-style living on 4 gated acres with pool, spa, terraces & expansive lawn. Designed for both everyday living & entertaining, the floor plan features generously sized rooms, dramatic double-height family room, sophisticated bar area & updated kitchen with 2 oversized islands. The luxurious primary suite includes dual walk-in closets & spa-like bath, while all additional bedrooms are en-suite. A first-floor guest suite, mudroom, collector's garage, finished lower level with family room & gym, plus third-floor storage add flexibility. Thoughtfully designed indoor & outdoor spaces create the perfect setting for enjoying the privacy of this extarordinary home.
Under contract
$8,495,000
170 Old Mill Rd, Greenwich, CT 06831
7beds
13,974sqft
:
Get pre-qualified$51,622/mo
Residential, Single Family Residence
Built in 2005
4.11 Acres Lot
$8,926,900 Zestimate®
$608/sqft
$-- HOA
What's special
- 9 days |
- 4,376 |
- 303 |
Zillow last checked:
Listing updated:
Listed by:
Joanne Mancuso 203-667-3887,
Houlihan Lawrence
Source: Greenwich MLS, Inc.,MLS#: 125584
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 7
- Bathrooms: 10
- Full bathrooms: 7
- 1/2 bathrooms: 3
Heating
- Hydro-Air, Oil
Cooling
- Central Air
Appliances
- Laundry: Laundry Room
Features
- Kitchen Island, Vaulted Ceiling(s), Bookcases, Pantry, Back Stairs
- Basement: Finished
- Number of fireplaces: 8
Interior area
- Total structure area: 13,974
- Total interior livable area: 13,974 sqft
Property
Parking
- Total spaces: 4
- Parking features: Electric Gate
- Garage spaces: 4
Features
- Patio & porch: Terrace
- Exterior features: Balcony
- Has private pool: Yes
- Fencing: Fenced
Lot
- Size: 4.11 Acres
- Features: Level
Details
- Additional structures: Shed(s)
- Parcel number: 103124
- Zoning: RA-4
- Other equipment: Generator, Intercom
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Residential, Single Family Residence
Materials
- Shingle Siding, Stone
- Roof: Wood
Condition
- Year built: 2005
- Major remodel year: 2021
Utilities & green energy
- Sewer: Septic Tank
- Water: Well
- Utilities for property: Propane
Community & HOA
Community
- Security: Security System
Location
- Region: Greenwich
Financial & listing details
- Price per square foot: $608/sqft
- Tax assessed value: $4,758,040
- Annual tax amount: $48,175
- Date on market: 7/27/2026
- Inclusions: Washer/Dryer, Play Area Equip, All Kitchen Applncs
Estimated market value
$8,926,900
$8.48M - $9.46M
$34,586/mo
Price history
| Date | Event | Price |
|---|---|---|
| 8/5/2026 | Contingent | $8,495,000$608/sqft |
Source:  Greenwich MLS, Inc. #125584 Report a problem | ||
| 7/27/2026 | Listed for sale | $8,495,000+98.9%$608/sqft |
Source: Greenwich MLS, Inc. #125584 Report a problem | ||
| 7/31/2020 | Sold | $4,270,000-13.7%$306/sqft |
Source: Greenwich MLS, Inc. #107944 Report a problem | ||
| 11/8/2019 | Price change | $4,945,500-10%$354/sqft |
Source: Houlihan Lawrence #107944 Report a problem | ||
| 9/26/2019 | Listed for sale | $5,495,000+12.1%$393/sqft |
Source: Houlihan Lawrence #107944 Report a problem | ||
| 10/22/2015 | Sold | $4,900,000-44.6%$351/sqft |
Source: Greenwich MLS, Inc. #91212 Report a problem | ||
| 5/5/2006 | Sold | $8,850,000+289%$633/sqft |
Source: Public Record Report a problem | ||
| 10/4/2002 | Sold | $2,275,000$163/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $40,642 +2.8% | $3,375,540 |
| 2024 | $39,528 +2.8% | $3,375,540 |
| 2023 | $38,447 +1% | $3,375,540 |
| 2022 | $38,076 -4.2% | $3,375,540 -1.6% |
| 2021 | $39,759 | $3,430,420 |
| 2020 | $39,759 -0.8% | $3,430,420 |
| 2019 | $40,067 +2.7% | $3,430,420 |
| 2018 | $39,004 | $3,430,420 |
| 2017 | $39,004 -42.4% | $3,430,420 -42.9% |
| 2015 | $67,755 +2.7% | $6,012,020 |
| 2014 | $65,952 +2.7% | $6,012,020 |
| 2013 | $64,208 -2.9% | $6,012,020 |
| 2012 | $66,132 +8.8% | $6,012,020 |
| 2011 | $60,782 +7.9% | $6,012,020 -8.3% |
| 2010 | $56,338 +3.4% | $6,558,580 |
| 2009 | $54,502 +3.4% | $6,558,580 |
| 2008 | $52,731 +3.6% | $6,558,580 |
| 2007 | $50,895 +4.1% | $6,558,580 +0.6% |
| 2006 | $48,910 +210.3% | $6,521,270 +376.2% |
| 2005 | $15,761 +18.3% | $1,369,340 +14.3% |
| 2004 | $13,325 +3.4% | $1,198,330 |
| 2003 | $12,882 +23.8% | $1,198,330 +115.4% |
| 2001 | $10,403 +5.7% | $556,290 |
| 2000 | $9,846 -4.6% | $556,290 |
| 1999 | $10,319 | $556,290 |
Find assessor info on the county website
Monthly payment
Est. payment
Payment breakdown
Explore the cost of this home by adjusting the details. Changes won't be saved.Climate risks
Neighborhood: 06831
Nearby schools
GreatSchools rating
- 10/10Parkway SchoolGrades: K-5Distance: 1.6 mi
- 8/10Western Middle SchoolGrades: 6-8Distance: 5.7 mi
- 10/10Greenwich High SchoolGrades: 9-12Distance: 4.7 mi
Schools provided by the listing agent
- Elementary: Parkway
- Middle: Western
Source: Greenwich MLS, Inc.. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
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