Google satellite image for 518 Prospect Mountain Rd, Alton, NH 03809

Off market

$628,678

•

2 ba

•

2,764

sq ft

518 Prospect Mountain Rd, Alton, NH 03809

About this home

518 Prospect Mountain Rd is a 2,764 square foot house on a 17.66 acre lot with 3 bedrooms and 2 bathrooms. Based on Redfin's Alton data, we estimate the home's value is $628,678.

Single-familyProperty Type

1989Year Built

17.66 acresLot Size

$227Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$628,678

$1,000 since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 14.1% higher than the average sale price ($551K) of 6 comparable homes.

SOLD JUN 26, 2026
$580,000
A
3 beds2 baths2,860 sq ft
55 Walker Rd, Center Barnstead, NH 03225
SOLD JUL 17, 2026
$535,000
B
3 beds2 baths2,128 sq ft
33 Quaker Rd, New Durham, NH 03855
SOLD JUL 17, 2026
$499,000
C
3 beds2 baths1,828 sq ft
229 Valley Rd, New Durham, NH 03855
SOLD MAR 9, 2026
$575,000
D
3 beds2.5 baths2,366 sq ft
147 Hamwoods Rd, Alton, NH 03809
SOLD SEP 10, 2026
$522,000
E
3 beds2 baths1,960 sq ft
191 North Rd, Center Barnstead, NH 03225
SOLD SEP 21, 2026
$595,000
F
3 beds2.5 baths2,218 sq ft
19 Linwood Dr, Alton, NH 03809

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Earn from this home

Sell

$590,507

Est. take-home

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Rent

$3,341/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 518 Prospect Mountain Rd

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

Tax history for 518 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: 1,152

Bathroom Information
# of Full Baths: 2

Heating & Cooling
Heating Type: Forced Hot Water

Room Information
# of Rooms: 6

Exterior

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

Property Information
Living Sq. Ft: 2,764
Gross Sq. Ft: 5,432
Ground Floor Sq. Ft: 1,152
# of Units: 1
# of Stories: 2

Lot Information
# of Buildings: 1
Land Sq. Ft: 769,270
Legal Block Number: 26
Municipality Name: ALTON
Acres: 17.66
Zoning Code: RU-RUR
State Use Description: 1-FAMILY RESIDENCE

Financial

Assessor Information
Assessment Year: 2024

Public facts

Beds: 3
Baths: 2.0
Sq. Ft.: 2,764
Stories: 2.0
Lot Size: 17.66 acres
Style: Single Family Residential
Year Built: 1989
Year Renovated: —
County: Belknap County
APN: 4215074S

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 • 4.2mi

5/10

Prospect Mountain High School

Public 9-12 • Assigned • 3.2mi

4/10

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

2/10 Fire Factor

0.00% chance of being in a wildfire in next 30 years

2/10 Heat Factor

7 days above 91° expected this year, 15 days in 30 years

4/10 Wind Factor

13% chance of strong winds in next 30 years

2/10 Air Factor

1 unhealthy days expected this year, 1 days in 30 years

Provided by First Street

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

$598,000 – $723,000

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New listings for sale in 03809

$475,000

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7 Palm Ln, Alton, NH 03809

Modern kitchen • Charming dining area • Spacious living room

$265,000

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Premier lot • Conservation land • One-level living

$299,999

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Zoned as commercial • Zoned as residential • 0.57 acre lot

$649,000

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40 Old Wolfeboro Rd, Alton, NH 03809

Attached barn • Custom penny bar • Farmer's porch

$418,000

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Minutes to alton bay • Town beach • Two boat ramps

Home values near 518 Prospect Mountain Rd

Data from public records.

Address	Redfin Estimate
396 Prospect Mountain Road, Alton, NH 5 Beds \| 5 Baths \| 5361 Sq. Ft.	$1,060,228
625 Prospect Mountain Road, Alton, NH 2 Beds \| 1.5 Baths \| 1984 Sq. Ft.	$722,731
631 Prospect Mountain Road, Alton, NH 2 Beds \| 2 Baths \| 2771 Sq. Ft.	$571,196
586 Prospect Mountain Road, Alton, NH 3 Beds \| 2 Baths \| 1894 Sq. Ft.	$583,398

Address	Redfin Estimate
631 Prospect Mountain Road, Alton, NH 2 Beds \| 2 Baths \| 2030 Sq. Ft.	$587,281
586 Prospect Mountain Road, Alton, NH 3 Beds \| 2 Baths \| 1894 Sq. Ft.	$600,538
613 Prospect Mountain Road, Alton, NH 3 Beds \| 2.5 Baths \| 3159 Sq. Ft.	$690,710
31 Africa Road, Alton, NH 2 Beds \| 1 Baths \| 3483 Sq. Ft.	$758,803

Address	Redfin Estimate
613 Prospect Mountain Road, Alton, NH 3 Beds \| 2.5 Baths \| 3159 Sq. Ft.	$703,912
396 Prospect Mountain Road, Alton, NH 5 Beds \| 5 Baths \| 5361 Sq. Ft.	$1,061,504
625 Prospect Mountain Road, Alton, NH 2 Beds \| 1.5 Baths \| 2592 Sq. Ft.	$674,621
31 Africa Road, Alton, NH 2 Beds \| 1 Baths \| 3483 Sq. Ft.	$733,635

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GreatSchools Ratings provided by GreatSchools.org.

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