Off market dec 2015 for $450K

$773,914

Est. refi paymentEst. refi $3,547/mo

•

2,992

sq ft

21 Stonewall Farm Rd, Mahopac, NY 10541

About this home

$10,000 credit to buyers at closing!! Impeccably cared for artsy contemporary bi-level tastefully appointed and set on a magnificent level property. Incredible space of 3000 sq. ft. will be the source of intimate moments and memorable family gatherings for years to come. Spacious living room with skylights and cathedral ceilings showcases a cozy wood-burning fireplace and leads to the formal dining room. Enjoy cooking in the oversized eat-in-kitchen w/ door to the wrap around deck. The upper level also features the master suite with private, deck, walk in closet and updated master bath and 2 generously sized bedrooms with ample closet space. Features include hardwood floors, central air and so much more . Enjoy the fully finished walkout basement with large family room, office/den, guest room for nanny or granny & full bath. Outside wonders await on this spectacular, level and park-like oversized 1.42 acre property. Taxes do not reflect STAR of $1290 Additional Information: HeatingFuel:Oil Above Ground,ParkingFeatures:2 Car Attached,

Single-familyProperty Type

1987Year Built

1.42 acresLot Size

$259Est. Price/Sq.Ft.

2 spacesParking

Listing by Hope Ross Mazzola • William Raveis-New York LLC

Bought with Michael Trinchitella • RE/MAX Classic Realty

Redfin checked: 2 minutes ago

•Source:OneKey® MLS as Distributed by MLS Grid #H4530155

Redfin Estimate

$773,914

$324K since sold in December 2015$1,000 since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 5.3% higher than the average sale price ($735K) of 6 comparable homes.

SOLD OCT 14, 2026
$730,000
A
4 beds3 baths2,125 sq ft
4 Stonewall Farm Rd, Mahopac, NY 10541
Listing by Coldwell Banker Realty
SOLD MAY 29, 2026
$900,000
B
4 beds3 baths2,627 sq ft
183 Bullet Hole Rd, Mahopac, NY 10541
Listing by Keller Williams Realty Partner
SOLD AUG 14, 2026
$665,000
C
3 beds3 baths2,316 sq ft
77 Hill St, Mahopac, NY 10541
Listing by William Raveis-New York LLC
SOLD OCT 22, 2026
$680,000
D
4 beds3 baths1,974 sq ft
6 Tennis Court Rd, Mahopac, NY 10541
Listing by Coldwell Banker Realty
SOLD DEC 30, 2025
$733,000
E
4 beds2.5 baths2,668 sq ft
400 Bullet Hole Rd, Mahopac, NY 10541
Listing by Houlihan Lawrence Inc.
SOLD JUL 29, 2026
$700,000
F
4 beds3 baths3,360 sq ft
2 Redding Ln, Mahopac, NY 10541
Listing by Houlihan Lawrence Inc.

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Earn from this home

Sell

$453,407

Est. take-home

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Refinance

Est. cash available

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Rent

$1,608/mo

Redfin rental estimate

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Market trends in 10541, NY

Last updated October 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

102.2%

0.9% MoM

Median sale price

$675K

$6K MoM

Avg. days on market

40d

12 days MoM

Recently sold homes

15 MoM

New listings for sale

NEW 17 HRS AGO
$1,149,995
4 beds4.5 baths3,449 sq ft
17 Ryan Ct, Mahopac, NY 10541
Listing by Coldwell Banker Realty
$499,999
3 beds1 bath1,008 sq ft
96 Pigott Rd, Mahopac, NY 10541
Listing by Exit Realty Connections
OPEN SUN, 1PM TO 4PM
$850,000
4 beds2.5 baths2,366 sq ft
26 Mandy Ln, Mahopac, NY 10541
Listing by Real Broker NY LLC
$620,000
4 beds2 baths1,780 sq ft
23 Colton Rd, Mahopac, NY 10541
Listing by Alliance Realty
$425,000
2 beds2 baths825 sq ft
66 Orchard Rd, Mahopac, NY 10541
Listing by Coldwell Banker Realty
$525,000
3 beds1.5 baths2,176 sq ft
86 Overhill Rd, Mahopac, NY 10541
Listing by Coldwell Banker Realty
$715,000
3 beds2 baths2,015 sq ft
122 Agor Ln, Mahopac, NY 10541
Listing by William Raveis Real Estate
See all

Provided by Redfin

Sale history for 21 Stonewall Farm Rd

Date

Event

Price

HGMLS #4530155

Dec 17, 2015

Sold

$450,000

$150/sq ft

Dec 17, 2015

Price Changed

$450,000

$150/sq ft

Dec 17, 2015

Price Changed

$410,000

$137/sq ft

Oct 16, 2015

Contingent

—

Oct 16, 2015

Price Changed

$468,000

$156/sq ft

Jun 27, 2015

Listed

$468,000

$156/sq ft

OneKey® MLS as Distributed by MLS Grid #H4530155

Dec 17, 2015

Sold

$450,000

$150/sq ft

Jun 27, 2015

Listed

$468,000

$156/sq ft

Public Records

Jan 2, 2004

Sold

$525,000

$175/sq ft

Public Records

Jul 16, 1996

Sold

$285,000

$95/sq ft

Public Records

Dec 12, 1990

Sold

$285,000

$95/sq ft

Year

Property tax

Land + Additions

Assessment*

2026

$17,516 (+4.2%)

$147,800 + $509,300

$657,100

2025

$16,805 (+0.3%)

$147,800 + $509,300

$657,100

2024

$16,756 (+9.2%)

$147,800 + $466,300

$614,100

2023

$15,338 (+1.5%)

$134,400 + $410,600

$545,000

2022

$15,106 (+2.6%)

$134,400 + $365,600

$500,000

2021

$14,722 (+1.5%)

$134,400 + $323,900

$458,300

2020

$14,498 (−2.6%)

$134,400 + $314,900

$449,300

2019

$14,879 (−0.6%)

$134,400 + $314,900

$449,300

2018

$14,961 (+6.9%)

$134,400 + $314,900

$449,300

2016

$13,994 (+10.6%)

$134,400 + $320,300

$454,700

2015

$12,652 (−5.4%)

$90,900 + $151,875

$242,775

2014

$13,371 (+10.3%)

$90,900 + $151,875

$242,775

2013

$12,128 (+5.8%)

$90,900 + $151,875

$242,775

2012

$11,467 (−8.0%)

$90,900 + $151,875

$242,775

2011

$12,462 (+276.8%)

$90,900 + $151,875

$242,775

2010

$3,307 (+6.0%)

$90,900 + $193,800

$284,700

2009

$3,121

$90,900 + $193,800

$284,700

Tax history for 21 Stonewall Farm Rd

Year

Property tax

Land + Additions

Assessment*

2026

$17,516 (+4.2%)

$147,800 + $509,300

$657,100

2025

$16,805 (+0.3%)

$147,800 + $509,300

$657,100

2024

$16,756 (+9.2%)

$147,800 + $466,300

$614,100

2023

$15,338 (+1.5%)

$134,400 + $410,600

$545,000

2022

$15,106 (+2.6%)

$134,400 + $365,600

$500,000

2021

$14,722 (+1.5%)

$134,400 + $323,900

$458,300

2020

$14,498 (−2.6%)

$134,400 + $314,900

$449,300

2019

$14,879 (−0.6%)

$134,400 + $314,900

$449,300

2018

$14,961 (+6.9%)

$134,400 + $314,900

$449,300

2016

$13,994 (+10.6%)

$134,400 + $320,300

$454,700

2015

$12,652 (−5.4%)

$90,900 + $151,875

$242,775

2014

$13,371 (+10.3%)

$90,900 + $151,875

$242,775

2013

$12,128 (+5.8%)

$90,900 + $151,875

$242,775

2012

$11,467 (−8.0%)

$90,900 + $151,875

$242,775

2011

$12,462 (+276.8%)

$90,900 + $151,875

$242,775

2010

$3,307 (+6.0%)

$90,900 + $193,800

$284,700

2009

$3,121

$90,900 + $193,800

$284,700

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

Public record

Beds

Baths

Stories

Lot width

205 ft.

Lot depth

—

Lot size

1.42 Acres

Year renovated

1995

Sq. Ft.

2,992

Year built

1987

Style

Single Family Residential

County

Putnam County

APN

372000A05301800010220000000

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Nov 11, 2026.

Property details

Parking

Parking Information
Parking Total: 2
Parking Features: Attached

Interior

Fireplace Information
Has Fireplace
Fireplaces Total: 1

Heating & Cooling
Cooling: Central Air
Heating: Hot Water, Oil

Interior Features
Interior Features: Cathedral Ceiling(s),Eat-in Kitchen,Primary Bathroom
Window Features: Skylight(s)
Appliances: Oil Water Heater
Levels: Two
Patio And Porch Features: Deck

Room Information
Basement YN: Yes
Attic: Pull Stairs
Rooms Total: 9
Basement: Finished, Walk-Out Access

Bathroom Information
Bathrooms Full: 3

Exterior

Exterior Features
Construction Materials: Frame, Wood Siding
Security Features: Security System
Waterfront YN: No

Lot Information
Additional Parcels YN: No
Lot Features: Cul-De-Sac, Level, Near School

Property Information
Stories: 2
Living Area Source: Public Records
Property Sub Type: Single Family Residence
Property Condition: Actual

Financial

Tax Information
Tax Year: 2015
Tax Source: Municipality
Tax Annual Amount: $13,670

Financial Information
Buyer Financing: Conventional

Utilities

Utility Information
Electric Company: NYSEG
Sewer: Septic Tank
Utilities: Trash Collection Private

Location

School Information
Elementary School: Austin Road Elementary School
Middle Or Junior School: Mahopac Middle School
High School: Mahopac High School
High School District: Mahopac

Location Information
Hamlet: Carmel
Directions: 6N to Hill St to L on Hitchcock Hill to L onto Mexico Lane, L onto Stone Wall, House on Right
County Or Parish: Putnam County

Public facts

Beds: 4
Baths: 3.0
Sq. Ft.: 2,992
Stories: 1.0
Lot Size: 1.42 acres
Style: Single Family Residential
Year Built: 1987
Year Renovated: 1995
County: Putnam County
APN: 372000A05301800010220000000

Home facts updated by county records on Nov 11, 2026

Around this home

Schools

K - 12
Preschool & daycare

Austin Road Elementary School

Public K-5 • Assigned • 0.8mi

6/10

Mahopac Middle School

Public 6-10 • Assigned • 2.3mi

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

4/10 Heat Factor

7 days above 97° expected this year, 15 days in 30 years

4/10 Wind Factor

16% chance of strong winds in next 30 years

3/10 Air Factor

2 unhealthy days expected this year, 4 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°

84°

67°

81°

61°

78°

58°

64°

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

$736,000 – $891,000

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New listings for sale in 10541

NEW 17 HRS AGO

$1,149,995

4 beds4.5 baths3,449 sq ft

17 Ryan Ct, Mahopac, NY 10541

Chef's kitchen • Custom cabinetry • Granite countertops

Listing by Coldwell Banker Realty

$499,999

3 beds1 bath1,008 sq ft

96 Pigott Rd, Mahopac, NY 10541

Three season room • Spacious back deck • Expansive backyard

Listing by Exit Realty Connections

OPEN SUN, 1PM TO 4PM

$850,000

4 beds2.5 baths2,366 sq ft

26 Mandy Ln, Mahopac, NY 10541

Hardwood floors • Granite tile • Center island

Listing by Real Broker NY LLC

$620,000

4 beds2 baths1,780 sq ft

23 Colton Rd, Mahopac, NY 10541

Formal dining room • Eat-in kitchen • 0.43 acre lot

Listing by Alliance Realty

$425,000

2 beds2 baths825 sq ft

66 Orchard Rd, Mahopac, NY 10541

Corner lot • Lake secor community • Updated kitchen

Listing by Coldwell Banker Realty

$525,000

3 beds1.5 baths2,176 sq ft

86 Overhill Rd, Mahopac, NY 10541

Cul-de-sac • Wooded backdrop • Hardwood floors

Listing by Coldwell Banker Realty

$715,000

3 beds2 baths2,015 sq ft

122 Agor Ln, Mahopac, NY 10541

Stone fireplace • Corian countertops • Deck access

Listing by William Raveis Real Estate

Home values near 21 Stonewall Farm Rd

Data from public records.

Address	Redfin Estimate
26 Stonewall Farm Rd, Mahopac, NY 4 Beds \| 2.5 Baths \| 3356 Sq. Ft.	$735,042
38 Stonewall Farm Rd, Mahopac, NY 4 Beds \| 3 Baths \| 2678 Sq. Ft.	$850,776
54 Stonewall Farm Rd, Mahopac, NY 6 Beds \| 3.5 Baths \| 4248 Sq. Ft.	$780,372
44 Stonewall Farm Rd, Mahopac, NY 4 Beds \| 3.5 Baths \| 3258 Sq. Ft.	$788,706
59 Stonewall Farm Rd, Mahopac, NY 4 Beds \| 3.5 Baths \| 3609 Sq. Ft.	$939,158
14 Stonewall Farm Rd, Mahopac, NY 3 Beds \| 2 Baths \| 2074 Sq. Ft.	$652,669
117 Mexico Ln, Mahopac, NY 5 Beds \| 3 Baths \| 2126 Sq. Ft.	$652,540

Address	Redfin Estimate
29 Stonewall Farm Rd, Mahopac, NY 4 Beds \| 3.5 Baths \| 3749 Sq. Ft.	$890,139
3 Stonewall Farm Rd, Mahopac, NY 4 Beds \| 2.5 Baths \| 2553 Sq. Ft.	$835,489
50 Stonewall Farm Rd, Mahopac, NY 3 Beds \| 3 Baths \| 2143 Sq. Ft.	$714,343
40 Stonewall Farm Rd, Mahopac, NY 3 Beds \| 3 Baths \| 2831 Sq. Ft.	$742,111
34 Stonewall Farm Rd, Mahopac, NY 4 Beds \| 3 Baths \| 2916 Sq. Ft.	$894,292
4 Stonewall Farm Rd, Mahopac, NY 4 Beds \| 3 Baths \| 2125 Sq. Ft.	$718,900
89 Mexico Ln, Mahopac, NY 2 Beds \| 1.5 Baths \| 1266 Sq. Ft.	$823,258

Address	Redfin Estimate
55 Stonewall Farm Rd, Mahopac, NY 5 Beds \| 4 Baths \| 4760 Sq. Ft.	$1,089,089
15 Stonewall Farm Rd, Mahopac, NY 4 Beds \| 3 Baths \| 2166 Sq. Ft.	$708,570
46 Stonewall Farm Rd, Mahopac, NY 4 Beds \| 3 Baths \| 2255 Sq. Ft.	$781,692
41 Stonewall Farm Rd, Mahopac, NY 4 Beds \| 3 Baths \| 2800 Sq. Ft.	$775,637
20 Stonewall Farm Rd, Mahopac, NY 3 Beds \| 3 Baths \| 1790 Sq. Ft.	$672,941
101 Mexico Ln, Mahopac, NY 3 Beds \| 3 Baths \| 2541 Sq. Ft.	$571,898
141 Mexico Ln, Mahopac, NY 3 Beds \| 2 Baths \| 1550 Sq. Ft.	$511,715

Property information provided by OneKey® MLS as Distributed by MLS Grid when last listed in 2015. This data may not match . Learn more.

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About this home

Redfin Estimate

Earn from this home

Market trends in 10541, NY

Sale history for 21 Stonewall Farm Rd

Tax history for 21 Stonewall Farm Rd

Public record

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 21 Stonewall Farm Rd

More real estate resources