Townhouse Living in the Heart of Greenwich - Private Rear Lawn + 3,376 Sq Ft of Interior Space. A rare opportunity to own a beautifully scaled 3-bedroom, 3.5-bath townhome in one of downtown Greenwich's most charming and private enclaves. Set within a boutique six-residence association, 45 William Street #B is the largest residence in the community and the only one with its own private rear lawn - a 3,476-square-foot outdoor space that is exceptionally rare in central Greenwich. Inside, the home offers 3,376 square feet across three levels, blending the comfort and proportions of a townhouse with the ease of in-town living. The main level features gracious entertaining spaces, abundant natural light, a large eat-in kitchen, and seamless access to the rear lawn, creating an effortless indoor-outdoor flow for outdoor dining, entertaining, gardening, or simply enjoying private green space at home.
Generous room proportions, three spacious bedrooms, three full baths plus a powder room, flexible living areas, and excellent separation of space provide comfort for everyday living, guests, and work-from-home needs. A private garage and additional deeded parking further enhance the home's convenience and livability.
Ideally located just moments from Greenwich Avenue, shopping, dining, Metro-North, parks, and Greenwich Library, 45 William Street #B offers a truly uncommon combination of space, privacy, outdoor living, and close-to-town convenience.
Under contract
$2,495,000
45 William St #B, Greenwich, CT 06830
3beds
3,376sqft
Residential, Condominium
Built in 2005
-- sqft lot
$2,559,800 Zestimate®
$739/sqft
$-- HOA
What's special
Abundant natural lightGenerous room proportionsLarge eat-in kitchenThree spacious bedroomsEffortless indoor-outdoor flowGracious entertaining spacesPrivate rear lawn
- 17 days |
- 962 |
- 24 |
Zillow last checked:
Listing updated:
Listed by:
Benjamin Cohen 203-249-1346,
Coldwell Banker Realty
Source: Greenwich MLS, Inc.,MLS#: 125073
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 3
- Bathrooms: 4
- Full bathrooms: 3
- 1/2 bathrooms: 1
Heating
- Natural Gas, Hydro-Air
Cooling
- Central Air
Appliances
- Laundry: Laundry Room
Features
- Kitchen Island, Entrance Foyer, Sep Shower, Pantry, Wet Bar
- Number of fireplaces: 1
Interior area
- Total structure area: 3,376
- Total interior livable area: 3,376 sqft
Property
Parking
- Total spaces: 2
- Parking features: Assigned, Garage Door Opener
- Garage spaces: 2
Features
- Has spa: Yes
- Spa features: Bath
Lot
- Size: 0.28 Acres
- Features: Level, Parklike
Details
- Additional structures: Shed(s)
- Parcel number: 072706/S
- Zoning: R-6
Construction
Type & style
- Home type: Condo
- Architectural style: Colonial
- Property subtype: Residential, Condominium
Materials
- Shingle Siding
- Roof: Asphalt
Condition
- Year built: 2005
Utilities & green energy
- Water: Public
- Utilities for property: Cable Connected
Community & HOA
Community
- Security: Security System
HOA
- Has HOA: Yes
- Services included: Trash, Snow Removal, Maintenance Grounds
- HOA name: Sir Williams Court
Location
- Region: Greenwich
Financial & listing details
- Price per square foot: $739/sqft
- Tax assessed value: $1,271,200
- Annual tax amount: $12,178
- Date on market: 5/25/2026
- Inclusions: Washer/Dryer, All Kitchen Applncs
Estimated market value
$2,559,800
$2.43M - $2.69M
$7,507/mo
Price history
| Date | Event | Price |
|---|---|---|
| 6/5/2026 | Contingent | $2,495,000$739/sqft |
Source: | ||
| 5/25/2026 | Listed for sale | $2,495,000+56.4%$739/sqft |
Source: | ||
| 6/7/2019 | Listing removed | $1,595,000$472/sqft |
Source: Kinard Realty Group #170166339 Report a problem | ||
| 3/4/2019 | Listed for sale | $1,595,000-3.3%$472/sqft |
Source: Kinard Realty Group #170166339 Report a problem | ||
| 11/30/2018 | Listing removed | $1,650,000$489/sqft |
Source: Kinard Realty Group/Chilton and Chadwick #170082628 Report a problem | ||
| 11/6/2018 | Price change | $1,650,000-2.7%$489/sqft |
Source: Kinard Realty Group #170082628 Report a problem | ||
| 9/19/2018 | Price change | $1,695,000-3.1%$502/sqft |
Source: Kinard Realty Group #170082628 Report a problem | ||
| 5/10/2018 | Listed for sale | $1,750,000+20.7%$518/sqft |
Source: Kinard Realty Group #170082628 Report a problem | ||
| 7/16/2009 | Sold | $1,450,000-7.9%$430/sqft |
Source: Public Record Report a problem | ||
| 8/8/2006 | Sold | $1,575,000+43.2%$467/sqft |
Source: Public Record Report a problem | ||
| 6/14/2006 | Sold | $1,100,000$326/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $10,128 +3.5% | $819,490 |
| 2024 | $9,781 +2.6% | $819,490 |
| 2023 | $9,536 +0.9% | $819,490 |
| 2022 | $9,449 +2% | $819,490 +6.5% |
| 2021 | $9,261 +0.2% | $769,160 |
| 2020 | $9,245 -1% | $769,160 |
| 2019 | $9,338 +2.3% | $769,160 |
| 2018 | $9,130 +0.6% | $769,160 +1.9% |
| 2017 | $9,075 +1.4% | $755,020 +0% |
| 2015 | $8,953 +2% | $754,740 |
| 2014 | $8,774 | $754,740 |
Find assessor info on the county website
Monthly payment
Est. payment$--/mo
Payment breakdown
Explore the cost of this home by adjusting the details. Changes won't be saved.All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
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Climate risks
Neighborhood: 06830
Nearby schools
GreatSchools rating
- 7/10Julian Curtiss SchoolGrades: PK-5Distance: 0.5 mi
- 8/10Central Middle SchoolGrades: 6-8Distance: 1.5 mi
- 10/10Greenwich High SchoolGrades: 9-12Distance: 0.8 mi
Schools provided by the listing agent
- Elementary: Julian Curtiss
- Middle: Central
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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- Connecticut
- Fairfield County
- Greenwich
- 06830
- 45 William St Unit B








