Google street view image for 673 Union Valley Rd, Mahopac, NY 10541

Off market sep 1988 for $320K

$714,831

Est. refi paymentEst. refi $2,145/mo

•

3 ba

•

2,581

sq ft

673 Union Valley Rd, Mahopac, NY 10541

About this home

673 Union Valley Rd is a 2,581 square foot house on a 2.07 acre lot with 3 bedrooms and 3 bathrooms. - it last sold on September 21, 1988 for $320,000. Based on Redfin's Mahopac data, we estimate the home's value is $714,831.

Single-familyProperty Type

1987Year Built

2.07 acresLot Size

$277Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$714,831

$395K since sold in September 1988$3,000 since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 3.2% lower than the average sale price ($739K) of 6 comparable homes.

SOLD AUG 12, 2026
$675,000
A
3 beds2 baths2,002 sq ft
58 Englewood Ter, Mahopac, NY 10541
Listing by Houlihan Lawrence Inc.
SOLD OCT 8, 2026
$657,500
B
3 beds2.5 baths2,144 sq ft
334 Lovell St, Mahopac, NY 10541
Listing by KW MidHudson
SOLD AUG 19, 2026
$800,000
C
3 beds3 baths2,603 sq ft
22 Hazel Hill Rd, Mahopac, NY 10541
Listing by Houlihan Lawrence Inc.
SOLD JUN 5, 2026
$910,000
D
3 beds2.5 baths2,529 sq ft
131 Eleanor Dr, Mahopac, NY 10541
Listing by RE/MAX Classic Realty
SOLD JUL 17, 2026
$650,000
E
3 beds2 baths1,892 sq ft
31 Colonel Enoch Dr, Carmel, NY 10512
Listing by Keller Williams Realty Partner
SOLD JUN 24, 2026
$740,000
F
3 beds2.5 baths1,945 sq ft
76 Colonel Enoch Dr, Carmel, NY 10512
Listing by Keller Williams Realty Partner

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Earn from this home

Sell

$671,715

Est. take-home

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Est. cash available

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Rent

$1,564/mo

Redfin rental estimate

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Market trends in 10541, NY

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

103.0%

+0.4% MoM

Median sale price

$669K

$6K MoM

Avg. days on market

29d

0 days MoM

Recently sold homes

11 MoM

New listings for sale

NEW 12 HRS AGO
$395,000
1 bed1 bath795 sq ft
32 Crest Dr, Mahopac, NY 10541
Listing by Houlihan Lawrence Inc.
NEW 19 HRS AGO
$430,000
3 beds1 bath1,128 sq ft
1 Shady Ln, Mahopac, NY 10541
Listing by Houlihan Lawrence Inc.
$665,500
4 beds2.5 baths1,656 sq ft
38 Steiner Dr, Mahopac, NY 10541
Listing by Jonathan D. Gineo
$589,900
3 beds1.5 baths1,968 sq ft
25 Hill St, Mahopac, NY 10541
Listing by Coldwell Banker Realty
$650,000
2 beds1 bath1,240 sq ft
718 Hill Dr, Mahopac, NY 10541
Listing by Keller Williams Realty Partner
$745,000
2 beds3.5 baths2,547 sq ft
7 Tulip Rd, Lincolndale, NY 10541
Listing by Real Broker NY LLC
$449,000
2 beds2 baths1,068 sq ft
12 Crest Dr, Mahopac, NY 10541
Listing by Z Wisdom Realty Inc.
$639,900
3 beds2 baths2,000 sq ft
75 Chestnut Ridge Rd, Mahopac, NY 10541
Listing by Keller Williams Realty Partner
$525,000
3 beds2 baths1,818 sq ft
170 Topland Rd, Mahopac, NY 10541
Listing by Houlihan Lawrence Inc.
$468,000
3 beds1 bath1,353 sq ft
18 Blueberry Hill Rd, Mahopac, NY 10541
Listing by Keller Williams Realty NYC Grp
See all

Provided by Redfin

Sale history for 673 Union Valley Rd

Year

Property tax

Land + Additions

Assessment*

2026

$15,336

$109,900 + $485,300

$595,200

2025

$15,336 (+0.4%)

$109,900 + $485,300

$595,200

2024

$15,282 (+2.0%)

$109,900 + $446,400

$556,300

2023

$14,977 (+3.4%)

$99,900 + $429,900

$529,800

2022

$14,487 (+3.7%)

$99,900 + $377,400

$477,300

2021

$13,974 (+11.1%)

$99,900 + $333,300

$433,200

2020

$12,574 (+3.7%)

$99,900 + $320,700

$420,600

2019

$12,128 (+3.2%)

$99,900 + $296,900

$396,800

2018

$11,754 (+4.1%)

$99,900 + $296,900

$396,800

2017

$11,292 (−7.3%)

$99,900 + $289,100

$389,000

2016

$12,186 (+1.2%)

$99,900 + $274,100

$374,000

2015

$12,045 (−6.6%)

$89,800 + $141,700

$231,500

2014

$12,896 (+10.7%)

$89,800 + $141,700

$231,500

2013

$11,651 (+5.8%)

$89,800 + $141,700

$231,500

2012

$11,010 (−4.6%)

$89,800 + $141,700

$231,500

2011

$11,544 (+310.1%)

$89,800 + $141,700

$231,500

2010

$2,815 (+5.8%)

$89,800 + $141,700

$231,500

2009

$2,660

$89,800 + $141,700

$231,500

Tax history for 673 Union Valley Rd

Year

Property tax

Land + Additions

Assessment*

2026

$15,336

$109,900 + $485,300

$595,200

2025

$15,336 (+0.4%)

$109,900 + $485,300

$595,200

2024

$15,282 (+2.0%)

$109,900 + $446,400

$556,300

2023

$14,977 (+3.4%)

$99,900 + $429,900

$529,800

2022

$14,487 (+3.7%)

$99,900 + $377,400

$477,300

2021

$13,974 (+11.1%)

$99,900 + $333,300

$433,200

2020

$12,574 (+3.7%)

$99,900 + $320,700

$420,600

2019

$12,128 (+3.2%)

$99,900 + $296,900

$396,800

2018

$11,754 (+4.1%)

$99,900 + $296,900

$396,800

2017

$11,292 (−7.3%)

$99,900 + $289,100

$389,000

2016

$12,186 (+1.2%)

$99,900 + $274,100

$374,000

2015

$12,045 (−6.6%)

$89,800 + $141,700

$231,500

2014

$12,896 (+10.7%)

$89,800 + $141,700

$231,500

2013

$11,651 (+5.8%)

$89,800 + $141,700

$231,500

2012

$11,010 (−4.6%)

$89,800 + $141,700

$231,500

2011

$11,544 (+310.1%)

$89,800 + $141,700

$231,500

2010

$2,815 (+5.8%)

$89,800 + $141,700

$231,500

2009

$2,660

$89,800 + $141,700

$231,500

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

Property details

Interior

Basement Information
Basement Type: Full

Bathroom Information
# of Full Baths: 3

Heating & Cooling
Heating Fuel Type: Electric
Heating Type: Electric

Exterior

Exterior Information
Physical Condition: Good
Building Style Type: Raised Ranch
Exterior Wall: Wood

Property Information
Living Sq. Ft: 2,581
Ground Floor Sq. Ft: 1,496
# of Stories: 1

Parking & Garage Information
# of Parking Spaces: 1
Parking Type: Basement Garage
Garage / Carport Type: Basement

Lot Information
# of Buildings: 1
Land Sq. Ft: 90,169
Legal Lot Number: 16
Legal Block Number: 1
School Tax District: MAHOPAC CENTRAL
Municipality Name: CARMEL
Acres: 2.07
Front Footage: 398
Zoning Code: R
State Use Description: SINGLE FAMILY RESID

Utility Information
Sewer Type: Private
Water Service Type: Private

Financial

Assessor Information
Assessment Year: 2025

Public facts

Beds: 3
Baths: 3.0
Sq. Ft.: 2,581
Stories: 1.0
Lot Size: 2.07 acres
Style: Single Family Residential
Year Built: 1987
Year Renovated: —
County: Putnam County
APN: 372000A07602000010160000000

Home facts updated by county records on Sep 14, 2026

Around this home

Schools

Fulmar Road Elementary School

Public K-5 • Assigned • 1.6mi

7/10

Mahopac Middle School

Public 6-10 • Assigned • 3.0mi

5/10

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

5/10 Heat Factor

7 days above 98° expected this year, 15 days in 30 years

4/10 Wind Factor

18% 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)

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

$680,000 – $823,000

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Nearby similar homes

NEW 12 HRS AGO

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1 bed1 bath795 sq ft

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Land— sq ft

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New listings for sale in 10541

NEW 12 HRS AGO

$395,000

1 bed1 bath795 sq ft

32 Crest Dr, Mahopac, NY 10541

Listing by Houlihan Lawrence Inc.

NEW 19 HRS AGO

$430,000

3 beds1 bath1,128 sq ft

1 Shady Ln, Mahopac, NY 10541

Listing by Houlihan Lawrence Inc.

$665,500

4 beds2.5 baths1,656 sq ft

38 Steiner Dr, Mahopac, NY 10541

Listing by Jonathan D. Gineo

$589,900

3 beds1.5 baths1,968 sq ft

25 Hill St, Mahopac, NY 10541

Listing by Coldwell Banker Realty

$650,000

2 beds1 bath1,240 sq ft

718 Hill Dr, Mahopac, NY 10541

Listing by Keller Williams Realty Partner

$745,000

2 beds3.5 baths2,547 sq ft

7 Tulip Rd, Lincolndale, NY 10541

Listing by Real Broker NY LLC

$449,000

2 beds2 baths1,068 sq ft

12 Crest Dr, Mahopac, NY 10541

Listing by Z Wisdom Realty Inc.

$639,900

3 beds2 baths2,000 sq ft

75 Chestnut Ridge Rd, Mahopac, NY 10541

Listing by Keller Williams Realty Partner

$525,000

3 beds2 baths1,818 sq ft

170 Topland Rd, Mahopac, NY 10541

Listing by Houlihan Lawrence Inc.

Home values near 673 Union Valley Rd

Data from public records.

Address	Redfin Estimate
672 Union Valley Rd, Mahopac, NY 2 Beds \| 1 Baths \| 1350 Sq. Ft.	$382,638
630 Union Valley Rd, Mahopac, NY 3 Beds \| 2.5 Baths \| 2189 Sq. Ft.	$760,940

Address	Redfin Estimate
662 Union Valley Rd, Mahopac, NY 2 Beds \| 1 Baths \| 1433 Sq. Ft.	$499,577
621 Union Valley Rd, Mahopac, NY 8 Beds \| 5 Baths \| 3792 Sq. Ft.	$1,107,756

Address	Redfin Estimate
654 Union Valley Rd, Mahopac, NY 5 Beds \| 3.5 Baths \| 2512 Sq. Ft.	$711,157
645 Union Valley Rd, Mahopac, NY 2 Beds \| 2 Baths \| 1056 Sq. Ft.	$633,114

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About this home

Redfin Estimate

Earn from this home

Market trends in 10541, NY

Sale history for 673 Union Valley Rd

Tax history for 673 Union Valley Rd

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 10541

Home values near 673 Union Valley Rd

More real estate resources