Google satellite image for 155 Union Vly, Mahopac, NY 10541
SOLD
$962,804
Est. refi paymentEst. refi $2,736/mo
4
bd
2.5 ba
2,980
sq ft

155 Union Vly, Mahopac, NY 10541

map-entry

About this home

Spectacular Contemporary On 2 Gorgeous Acres With Fabulous Pool, On The Lake. Property Is Magnificent. .The House Is In Mint Condition. Perfect Retreat Yet Minutes To 684 And Taconic. Lake View From 5 Rooms. Hardwood Floors, Ceramic, Granite, Marble And Corian All Add To Home's Beauty. Soaring Double Sided Fireplace. Don't Miss It!

Single-familyProperty Type
1987Year Built
2.07 acresLot Size
$323Est. Price/Sq.Ft.
2 spacesParking
Source:Public Records

Redfin Estimate

$962,804
$533K since sold in August 1999$27K since August

This home's estimate is 8.6% lower than the average sale price ($1.05M) of 6 comparable homes.

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Earn from this home

Sell
$905,454
Est. take-home

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Refinance
$0
Est. cash available

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Rent
$1,614/mo
Redfin rental estimate

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Market trends in 10541, NY

Sale history for 155 Union Vly

Tax history for 155 Union Vly

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Public record

Beds
4
Baths
2.5
Stories
2
Lot width
108 ft.
Lot depth
Lot size
2.07 Acres
Year renovated
Sq. Ft.
2,980
Year built
1987
Style
Single Family Residential
County
Putnam County
APN
372000A08600800020460000000
Parking Spaces
Basement
Accessible
HOA Dues
Garage
Features
Last updated by owner on Jul 17, 2026.

Property details

Around this home

Schools

Lakeview Elementary School

Public K-5 • Assigned • 1.5mi

4/10
Mahopac High School

Public 7-12 • Assigned • 1.4mi

7/10
Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

4/10 Heat Factor

7 days above 99° expected this year, 15 days in 30 years

4/10 Wind Factor

19% chance of strong winds in next 30 years

4/10 Air Factor

3 unhealthy days expected this year, 5 days in 30 years

Provided by First Street

Historical weather

Mahopac, NY • 10541
Average low and high temperatures (°F)
33
20
36
21
53
33
62
42
69
52
80
61
86
68
81
61
77
58
66
47
54
37
39
24
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Sun exposure

In this area, properties receive around 8.6 hours in June and 4.1 hours in December, placing it below the U.S. average for solar exposure.

8.6 hrs
4.1 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$915,000 – $1.11M

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GreatSchools Ratings provided by GreatSchools.org.