$3,036,500
- 3 Beds
- 3.5 Baths
- 3,376 sqft
45 William St #B, Greenwich, CT 06830
Est. Refi. Payment $20,415/mo*
Refinance Your HomeCurrently Off Market - Sold Jun 25, 2026 for $3,000,000 (20% above list price)
Home Value
Trulia Estimate
$3.04MSince last month
Increased$26K (+0.9%)Since last year
Increased$921K (+43.4%)Since last sale
Increased$40K (+1.3%)Learn more about this home's value by checking out its Trulia Estimate, the value of nearby homes, and how much similar homes have sold for.
Trulia Estimate
The of this home's value increased by +117% in the last 10 years
| Month | Estimated value |
|---|---|
2026 | |
| September 2026 | $3.04M |
| August 2026 | $3.04M |
| July 2026 | $3.01M |
| June 2026 | $2.56M |
| May 2026 | $2.59M |
| April 2026 | $2.36M |
| March 2026 | $2.38M |
| February 2026 | $2.28M |
| January 2026 | $2.27M |
2025 | |
2024 | |
2023 | |
2022 | |
2021 | |
2020 | |
2019 | |
2018 | |
2017 | |
2016 | |
Comparable sales
These are recently sold homes that have a similar location or other similar features to this home, like bedrooms, bathrooms, and square footage. Get a sense of the expected prices in the area by viewing these homes.Address | Distance | Property Type | Sold Price | Sold Date | Bed | Bath | Sqft |
|---|---|---|---|---|---|---|---|
0.91 | Condo | $2,875,000 | 04/30/26 | 3 | 3.5 | 3,163 | |
0.04 | Condo | $1,500,100 | 02/13/26 | 3 | 2.5 | 2,024 | |
0.24 | Condo | $4,500,000 | 06/29/26 | 3 | 3.5 | 2,926 | |
0.09 | Condo | $1,485,000 | 03/16/26 | 3 | 2.5 | 1,940 | |
0.25 | Condo | $4,512,000 | 01/06/26 | 3 | 3 | 2,464 | |
0.62 | Condo | $3,525,000 | 02/10/26 | 4 | 4.5 | 4,095 | |
0.30 | Condo | $2,145,000 | 01/15/26 | 3 | 3 | 2,444 | |
0.26 | Condo | $2,500,000 | 10/28/25 | 2 | 2.5 | 2,335 | |
0.26 | Condo | $2,670,000 | 02/27/26 | 2 | 2.5 | 2,160 |
Nearby home prices
Get a sense of expected prices in the area by checking the value of nearby homes.Address | Distance | Price | Bed | Bath | Sqft | Status |
|---|---|---|---|---|---|---|
0.04 | $1,500,100 | 3 | 2.5 | 2,024 | Recently Sold | |
0.04 | $1,625,700 | 3 | 2 | 1,748 | Off Market | |
0.06 | - | - | - | 10,000 | Off Market | |
0.06 | $819,700 | 2 | 1.5 | 1,152 | Off Market | |
0.06 | $3,280,900 | Studio | - | 4,963 | Off Market | |
0.06 | $1,988,700 | 7 | 3 | 3,630 | Off Market | |
0.07 | $2,364,700 | 3 | 2.5 | 2,304 | Off Market | |
0.08 | $1,879,600 | 3 | 1 | 1,268 | Off Market | |
0.10 | $2,627,700 | 4 | 3.5 | 2,285 | Off Market | |
0.09 | $2,675,000 | 4 | 2.5 | 4,550 | Off Market | |
0.09 | $1,215,300 | 2 | 2.5 | 1,467 | Off Market |
Local Information
-- mins to
Home Highlights
Condo
Built in 2005
3,376 sqft
$889/sqft
Garage
About this House
This condo is located at 45 William St #B, Greenwich, CT. 45 William St #B is in Greenwich, CT and in ZIP code 06830. This property has 3 bedrooms, 4 bathrooms and approximately 3,376 sqft of floor space. The last sold price per dimension was $889/sqft. This property has a lot size of 0.28 acres and was built in 2005.
45 William St #B, Greenwich, CT 06830 is a 3 bedroom, 4 bathroom, 3,376 sqft condo built in 2005. It last sold for $3,000,000 on Jun 25, 2026 (20% above the $2,495,000 asking price). This property is not currently displayed as for sale or rent on Trulia. The Trulia Estimate is $3,036,500.
Last check for updates: about 19 hours ago
Listed by Benjamin Cohen, (203) 249-1346
Coldwell Banker Realty
Bought with: Benjamin Cohen, (203) 249-1346, Coldwell Banker Realty
Source: Greenwich MLS, Inc., MLS#125073

Home Details for 45 William St #B
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Interior Details Wet Bar |
Beds & Baths Number of Bedrooms: 3Number of Bathrooms: 4Number of Bathrooms (full): 3Number of Bathrooms (half): 1 |
Dimensions and Layout Living Area: 3376 Square Feet |
Appliances & Utilities Utilities: Cable ConnectedLaundry: Laundry Room |
Heating & Cooling Heating: Natural Gas,Hydro-AirHas CoolingAir Conditioning: Central AirHas HeatingHeating Fuel: Natural Gas |
Fireplace & Spa Number of Fireplaces: 1Spa: BathHas a FireplaceHas a Spa |
Security Security: Security System |
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Exterior Home Features Roof: AsphaltOther Structures: Shed(s)No Private Pool |
Parking & Garage Number of Garage Spaces: 2Number of Covered Spaces: 2Has a GarageParking Spaces: 2Parking: Assigned,Garage Door Opener |
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Year Built Year Built: 2005 |
Property Type / Style Property Type: ResidentialProperty Subtype: Residential, CondominiumArchitecture: Colonial |
Building Construction Materials: Shingle Siding |
Property Information Included in Sale: Washer/Dryer, All Kitchen ApplncsParcel Number: 072706/S |
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Price List Price: $2,495,000Price Per Sqft: $889/sqft |
Status Change & Dates Off Market Date: Thu Jun 25 2026 |
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MLS Status: Closed |
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Direction & Address City: Greenwich |
School Information Elementary School: Julian CurtissJr High / Middle School: Central |
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Building Area Building Area: 3376 Square Feet |
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HOA Fee Includes: Trash, Snow Removal, Maintenance GroundsHOA Name (second): Sir Williams CourtHas an HOA |
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Lot Area: 0.28 acres |
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Mobile Home Park Mobile Home Units: Feet |
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Mls Number: 125073 |
Price and Tax history
| Date | Event | Price |
|---|---|---|
Jun 25, 2026 Source: Greenwich MLS, Inc. #125073 | Sold | $3,000,000 |
Jun 5, 2026 Source: Greenwich MLS, Inc. #125073 | Contingent | $2,495,000 |
May 25, 2026 Source: Greenwich MLS, Inc. #125073 | Listed For Sale | $2,495,000 |
Jun 7, 2019 Source: Agent Provided | ListingRemoved | $1,595,000 |
Mar 4, 2019 Source: Agent Provided | Listed For Sale | $1,595,000 |
Nov 30, 2018 Source: Agent Provided | ListingRemoved | $1,650,000 |
Nov 6, 2018 Source: Agent Provided | PriceChange | $1,650,000 Price decreased by 3% |
Sep 19, 2018 Source: Agent Provided | PriceChange | $1,695,000 Price decreased by 3% |
May 10, 2018 Source: Agent Provided | Listed For Sale | $1,750,000 |
Jul 16, 2009 Source: N/A | Sold | $1,450,000 |
Aug 8, 2006 Source: N/A | Sold | $1,575,000 |
Jun 14, 2006 Source: N/A | Sold | $1,100,000 |
| Year | Property tax | Tax assessment |
|---|---|---|
| 2025 | $10,128 | $819,490 |
Home facts updated by county records
Market trends in Greenwich
Last updated August 2026
Avg. sale price
$2.58M
$150KMoM
Sale-to-List Price
104.8%
1.0%MoM
Price per sq ft
$825
$1MoM
Available listings
152
30MoM
Around this home
What Locals Say about Greenwich
At least 470 Trulia users voted on each feature.
88 % Say it's dog friendly
83 % Say car is needed
77 % Say parking is easy
76 % Say there's holiday spirit
74 % Say people would walk alone at night
73 % Say yards are well-kept
69 % Say kids play outside
67 % Say it's walkable to restaurants
67 % Say they plan to stay for at least 5 years
67 % Say it's quiet
60 % Say there are sidewalks
60 % Say there's wildlife
58 % Say neighbors are friendly
57 % Say streets are well-lit
55 % Say it's walkable to grocery stores
45 % Say there are community events
Sourced by Trulia users. Learn more about our methodology.
LGBTQ Local Legal Protections
LGBTQ Local Legal Protections

Listing data courtesy of Greenwich MLS. IDX information is provided exclusively for consumers’ personal, non-commercial use, that it may not be used for any purpose other than to
identify prospective properties consumers may be interested in purchasing. Data is deemed reliable but is not guaranteed accurate by the MLS.
Frequently asked questions about 45 William St #B
- What is 45 William St #B estimated to be worth?Trulia's estimated value for 45 William St #B in Greenwich, CT is $3,036,500.
- What is the price history for 45 William St #B?45 William St #B in Greenwich, CT last sold for $3,000,000 in June 2026.
- Is Greenwich a buyer's or seller's market?Greenwich is currently a seller's market, based on recent for-sale activity.
- What's the median sale price in Greenwich?The median sale price in Greenwich is $2.58M. That is up $150K from the prior month.
- Does 45 William St #B have air conditioning?Yes, 45 William St #B in Greenwich, CT has air conditioning.
- Does 45 William St #B have laundry facilities?Yes, 45 William St #B in Greenwich, CT has laundry facilities.