House Prices

Old Mill Westport, CT House Prices & Home Values 2026


Average Data

average house price$2,030,289
average size per house4255 ft²
average price per ft²470 $ / ft²

05/19/2026 - The value range (VR) for house prices in Old Mill Westport, CT is $446.5/ sqft to $493.5/ sqft. An average home with 4255 sqft costs approximately $1,867,560 to $2,064,146. Westport, CT includes 1 ZIP codes and it is located in Fairfield county. The lowest prices are found in ZIP 06880, while the highest are in ZIP 06880. The average price per sqare feet is $470. Our analysis is based on 10 property listings.

Avergage prices by ZIP codes Old Mill Westport

06880609 $ / ft²




Historical development of home values in Old Mill Westport

Year Estimated value (USD) Change vs. 2025
2010 $942,903 -53.6%
2011 $906,441 -55.4%
2012 $904,000 -55.5%
2013 $937,790 -53.8%
2014 $984,420 -51.5%
2015 $1,034,944 -49.0%
2016 $1,088,955 -46.4%
2017 $1,147,730 -43.5%
2018 $1,211,183 -40.3%
2019 $1,267,344 -37.6%
2020 $1,332,859 -34.4%
2021 $1,515,984 -25.3%
2022 $1,767,297 -13.0%
2023 $1,863,696 -8.2%
2024 $1,971,514 -2.9%
2025 $2,030,289 0.0%

Graph: estimated home values in Old Mill Westport over time (USD)



Example: 100% financing house in Old Mill Westport

Loan amount: $2,030,289

Interest rate: 5.90%

Fixed monthly payment: $12,039.79

Breakdown in the 1st month:
Interest portion: $9,978.87  –  Principal portion: $2,060.92

Yearly breakdown (100% financing)

Year Interest per year ($) Principal per year ($) Remaining balance at year-end ($)
1 $119,066.83 $25,410.62 $2,004,878.38
2 $117,526.93 $26,950.52 $1,977,927.87
3 $115,893.70 $28,583.74 $1,949,344.12
4 $114,161.51 $30,315.94 $1,919,028.18
5 $112,324.34 $32,153.11 $1,886,875.08
6 $110,375.83 $34,101.61 $1,852,773.46
7 $108,309.25 $36,168.20 $1,816,605.27
8 $106,117.43 $38,360.02 $1,778,245.25
9 $103,792.78 $40,684.67 $1,737,560.58
10 $101,327.26 $43,150.19 $1,694,410.39
11 $98,712.32 $45,765.12 $1,648,645.27
12 $95,938.92 $48,538.53 $1,600,106.74
13 $92,997.45 $51,480.00 $1,548,626.74
14 $89,877.72 $54,599.73 $1,494,027.01
15 $86,568.93 $57,908.52 $1,436,118.50
16 $83,059.63 $61,417.82 $1,374,700.68
17 $79,337.66 $65,139.79 $1,309,560.90
18 $75,390.14 $69,087.31 $1,240,473.59
19 $71,203.39 $73,274.05 $1,167,199.54
20 $66,762.93 $77,714.52 $1,089,485.02
21 $62,053.37 $82,424.08 $1,007,060.94
22 $57,058.40 $87,419.04 $919,641.89
23 $51,760.74 $92,716.71 $826,925.19
24 $46,142.03 $98,335.41 $728,589.78
25 $40,182.83 $104,294.62 $624,295.16
26 $33,862.49 $110,614.95 $513,680.21
27 $27,159.14 $117,318.31 $396,361.90
28 $20,049.56 $124,427.89 $271,934.01
29 $12,509.13 $131,968.32 $139,965.70
30 $4,511.75 $139,965.70 $0.00

Note: The calculation is based on a standard annuity mortgage with a fixed monthly payment over the entire term. Extra payments, interest rate changes, and additional purchase costs (e.g. taxes, notary fees) are not included.


How to sell in Old Mill Westport, CT


1500 sqft3900 sqft
Ø selling price$838,549$1,783,821
Ø fast selling$762,317$1,605,439
Ø high price sale$914,780$1,962,203

In 2026, houses in Old Mill Westport, CT will be offered at an average price of $470 per square foot. A 1,500 sqft home priced at $838,549 is 22.61% more expensive per square foot than a 3,900 sqft home priced at $1,783,821. Home prices in Old Mill Westport, CT vary significantly depending on the property’s condition and exact location. For a quick sale, a 2,700 sqft home should be listed at around $1,234,953. Sellers who can wait longer may achieve a higher price of up to $1,509,387.

FAQ – Home Values in Old Mill Westport

What is the median home value in Old Mill Westport in 2026?

In 2026, the typical home value in Old Mill Westport is about $2,030,289 for an average home size of 4255 square feet. This corresponds to an average price of roughly $470 per square foot.

What is the average cost per square foot in Old Mill Westport?

In 2026, homes in Old Mill Westport sell for an average of around $470 per square foot, with a typical range between $446.5 and $493.5 per square foot, depending on the property’s location, condition, and lot size.

What is the average home size in Old Mill?

The average home size in Old Mill Westport is about 4255 square feet, with an estimated 2026 value around $2,030,289.



Neighborhoods close to Old Mill Westport, CT

Aspetuck Weston, CT265 $ / ft²
Southport Village Southport, CT335 $ / ft²
Redding Center Redding, CT232 $ / ft²
North Mianus Riverside, CT513 $ / ft²
Branchville Ridgefield, CT432 $ / ft²
Lucas Point Old Greenwich, CT1127 $ / ft²
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