Google street view image for 17 Prospect Mountain Rd, Alton, NH 03809

Off market

$644,436

•

2.5 ba

•

3,327

sq ft

17 Prospect Mountain Rd, Alton, NH 03809

About this home

17 Prospect Mountain Rd is a 3,327 square foot house on a 6.88 acre lot with 3 bedrooms and 2.5 bathrooms. Based on Redfin's Alton data, we estimate the home's value is $644,436.

Single-familyProperty Type

1988Year Built

6.88 acresLot Size

$194Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$644,436

$11K since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 23.9% higher than the average sale price ($520K) of 6 comparable homes.

SOLD SEP 10, 2026
$522,000
A
3 beds2 baths1,960 sq ft
191 North Rd, Center Barnstead, NH 03225
SOLD MAR 9, 2026
$575,000
B
3 beds2.5 baths2,366 sq ft
147 Hamwoods Rd, Alton, NH 03809
SOLD JUN 26, 2026
$580,000
C
3 beds2 baths2,860 sq ft
55 Walker Rd, Center Barnstead, NH 03225
SOLD SEP 21, 2026
$595,000
D
3 beds2.5 baths2,218 sq ft
19 Linwood Dr, Alton, NH 03809
SOLD JUL 13, 2026
$360,000
E
3 beds3 baths2,244 sq ft
21 Nutter Cir, Center Barnstead, NH 03225
SOLD AUG 20, 2026
$489,000
F
3 beds3 baths1,960 sq ft
495 Halls Hill Rd, Alton, NH 03809

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Earn from this home

Sell

$605,361

Est. take-home

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Rent

$3,473/mo

Redfin rental estimate

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Market trends in 03809, NH

Last updated October 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

96.3%

2.0% MoM

Median sale price

$590K

$173 MoM

Avg. days on market

39d

9 days MoM

Recently sold homes

2 MoM

New listings for sale

$475,000
2 beds1 bath1,008 sq ft
7 Palm Ln, Alton, NH 03809
$265,000
3 beds2 baths1,472 sq ft
56 Osprey Rd, Alton, NH 03809
$299,999
3 beds1 bath1,446 sq ft
54 Old Wolfeboro Rd, Alton, NH 03809
$649,000
5 beds2.5 baths3,940 sq ft
40 Old Wolfeboro Rd, Alton, NH 03809
$418,000
4 beds3 baths2,068 sq ft
222 Main St, Alton, NH 03809
See all

Provided by Redfin

Sale history for 17 Prospect Mountain Rd

As the MLS and public records start to fill up, we'll list the details here.

Tax history for 17 Prospect Mountain Rd

*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 Sq. Ft: 896

Bathroom Information
# of Full Baths: 2
# of 1/2 Baths: 1

Heating & Cooling
Heating Type: Forced Hot Water

Room Information
# of Rooms: 7

Exterior

Exterior Information
Physical Condition: Average
Building Style Type: Colonial
Exterior Wall: Wood Siding/Shingle
Roof Shape Type: Gable

Property Information
Subdivision Name: JOSEPH H HILLSGROVE
Living Sq. Ft: 3,327
Gross Sq. Ft: 4,816
Ground Floor Sq. Ft: 896
# of Units: 1
# of Stories: 2

Lot Information
# of Buildings: 1
Land Sq. Ft: 299,693
Legal Block Number: 14
Municipality Name: ALTON
Acres: 6.88
Zoning Code: RU-RUR
State Use Description: 1-FAMILY RESIDENCE

Financial

Assessor Information
Assessment Year: 2024

Public facts

Beds: 3
Baths: 2.5
Sq. Ft.: 3,327
Stories: 2.0
Lot Size: 6.88 acres
Style: Single Family Residential
Year Built: 1988
Year Renovated: —
County: Belknap County
APN: 4985349S

Home facts updated by county records on Sep 16, 2026

Around this home

Schools

K - 12
Preschool & daycare

Alton Central School

Public PreK-8 • Assigned • 3.6mi

5/10

Prospect Mountain High School

Public 9-12 • Assigned • 2.7mi

4/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Historical weather

Alton, NH • 03809

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

Try the sun simulator tool to see how light moves across the property at different times of day and year.

Provided by Shadowmap

Estimated sale price

$602,000 – $729,000

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New listings for sale in 03809

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Attached barn • Custom penny bar • Farmer's porch

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Minutes to alton bay • Town beach • Two boat ramps

Home values near 17 Prospect Mountain Rd

Data from public records.

Address	Redfin Estimate
50 Prospect Mountain Rd, Alton, NH 3 Beds \| 2 Baths \| 3634 Sq. Ft.	$535,628
0 Prospect Mountain Rd Lot 3, Alton, NH 4 Beds \| 2.5 Baths \| 2800 Sq. Ft.	$729,578
0 Prospect Mountain Rd Lot 1, Alton, NH 4 Beds \| 2.5 Baths \| 3100 Sq. Ft.	$798,193
50 Prospect Mountain Rd, Alton, NH 3 Beds \| 2 Baths \| 3634 Sq. Ft.	$555,112
32 Dudley Rd, Alton, NH 3 Beds \| 1.5 Baths \| 1892 Sq. Ft.	$612,519
5 Dudley Rd, Alton, NH 2 Beds \| 1.5 Baths \| 1726 Sq. Ft.	$410,195
915 Suncook Valley Rd, Alton, NH 2 Beds \| 2 Baths \| 3022 Sq. Ft.	$454,719

Address	Redfin Estimate
55 Prospect Mountain Rd, Alton, NH 4 Beds \| 3 Baths \| 3724 Sq. Ft.	$816,920
16 Prospect Mountain Rd, Alton, NH 3 Beds \| 1.5 Baths \| 2042 Sq. Ft.	$416,255
0 Prospect Mountain Rd, Alton, NH 3 Beds \| 2 Baths \| 1144 Sq. Ft.	$439,980
40 Prospect Mountain Rd, Alton, NH 3 Beds \| 1 Baths \| 1571 Sq. Ft.	$473,467
905 Suncook Valley Rd, Alton, NH 3 Beds \| 3 Baths \| 1373 Sq. Ft.	$460,727
32 Dudley Rd, Alton, NH 3 Beds \| 1.5 Baths \| 2425 Sq. Ft.	$539,807
905 Suncook Valley Rd, Alton, NH 3 Beds \| 3 Baths \| 1373 Sq. Ft.	$445,567

Address	Redfin Estimate
40 Prospect Mountain Rd, Alton, NH 3 Beds \| 1 Baths \| 1571 Sq. Ft.	$424,488
24 Prospect Mountain Rd Apartment 24-1, Alton, NH 4 Beds \| 2.5 Baths \| 2300 Sq. Ft.	$718,768
55 Prospect Mountain Rd, Alton, NH 4 Beds \| 3 Baths \| 3724 Sq. Ft.	$1,030,170
16 Prospect Mountain Rd, Alton, NH 3 Beds \| 1.5 Baths \| 2042 Sq. Ft.	$420,223
915 Suncook Valley Rd, Alton, NH 2 Beds \| 3 Baths \| 2240 Sq. Ft.	$465,394
905 Suncook Valley Rd, Alton, NH 3 Beds \| 3 Baths \| 1373 Sq. Ft.	$438,524
5 Dudley Rd, Alton, NH 1 Beds \| 1.5 Baths \| 1963 Sq. Ft.	$397,880

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