Google street view image for 166 Main St, Alton, NH 03809

Off market

$404,586

•

1 ba

•

2,084

sq ft

166 Main St, Alton, NH 03809

About this home

166 Main St is a 2,084 square foot house on a 0.52 acre lot with 2 bedrooms and 1 bathroom. Based on Redfin's Alton data, we estimate the home's value is $404,586.

Single-familyProperty Type

1994Year Built

0.52 acresLot Size

$194Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$404,586

$7,000 since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 47% lower than the average sale price ($763K) of 6 comparable homes.

SOLD AUG 17, 2026
$747,000
A
2 beds1 bath1,388 sq ft
166 N Shore Rd, New Durham, NH 03855
SOLD OCT 30, 2026
$450,000
B
2 beds2 baths2,064 sq ft
19 Leigh Dr, Alton Bay, NH 03810
SOLD NOV 2, 2026
$1,075,000
C
3 beds2 baths2,009 sq ft
117 Mount Major Hwy, Alton Bay, NH 03810
SOLD AUG 28, 2026
$345,000
D
3 beds1.5 baths2,150 sq ft
63 Main St, Alton, NH 03809
SOLD OCT 19, 2026
$460,000
E
3 beds2 baths1,872 sq ft
19 Southview Ln, Alton Bay, NH 03810
SOLD JUL 22, 2026
$1,500,000
F
2 beds2 baths1,654 sq ft
151 N Shore Rd, New Durham, NH 03855

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Earn from this home

Sell

$379,278

Est. take-home

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Rent

$2,404/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 166 Main St

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

Tax history for 166 Main St

*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: 1,428

Bathroom Information
# of Full Baths: 1

Heating & Cooling
Heating Type: Forced Hot Water

Room Information
# of Rooms: 6

Exterior

Exterior Information
Physical Condition: Good
Building Style Type: Ranch
Exterior Wall: Vinyl
Roof Shape Type: Gable

Property Information
Subdivision Name: MURIEL P STINSON
Living Sq. Ft: 2,084
Gross Sq. Ft: 3,583
Ground Floor Sq. Ft: 1,460
# of Units: 1
# of Stories: 1

Lot Information
# of Buildings: 1
Land Sq. Ft: 22,651
Legal Lot Number: 1
Legal Block Number: 64
Municipality Name: ALTON
Acres: 0.52
Zoning Code: RC-RES
State Use Description: 1-FAMILY RESIDENCE

Financial

Assessor Information
Assessment Year: 2024

Public facts

Beds: 2
Baths: 1.0
Sq. Ft.: 2,084
Stories: 1.0
Lot Size: 0.52 acres
Style: Single Family Residential
Year Built: 1994
Year Renovated: —
County: Belknap County
APN: 4006827S

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 • 0.5mi

5/10

Prospect Mountain High School

Public 9-12 • Assigned • 1.5mi

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

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

3/10 Heat Factor

7 days above 93° expected this year, 18 days in 30 years

4/10 Wind Factor

12% 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

$385,000 – $466,000

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Nearby similar homes

$299,999

3 beds1 bath1,446 sq ft

54 Old Wolfeboro Rd, Alton, NH 03809

Zoned as commercial • Zoned as residential • 0.57 acre lot

$418,000

4 beds3 baths2,068 sq ft

222 Main St, Alton, NH 03809

Minutes to alton bay • Town beach • Two boat ramps

$435,000

3 beds2 baths1,305 sq ft

504 Alton Mountain Rd, Alton Bay, NH 03810

Remodeled kitchen • Remodeled bathrooms • Level backyard

NEW CONSTRUCTIONVIDEO TOUR

$485,000

2 beds1.5 baths1,796 sq ft

51 Scott Dr, Alton, NH 03810

5 private beaches • 20 cathedral ceiling • Custom cabinets

VIDEO TOUR

$1,240,000

3 beds1 bath1,465 sq ft

48 S Shore Rd, New Durham, NH 03855

Waterfront home • Private frontage • Three-season porch

$560,000

4 beds3 baths3,140 sq ft

532 Frank C Gilman Hwy, Alton, NH 03809

Four bedroom cape • Array of skylights • Mt major trails

New listings for sale in 03809

$475,000

2 beds1 bath1,008 sq ft

7 Palm Ln, Alton, NH 03809

Modern kitchen • Charming dining area • Spacious living room

$265,000

3 beds2 baths1,472 sq ft

56 Osprey Rd, Alton, NH 03809

Premier lot • Conservation land • One-level living

$299,999

3 beds1 bath1,446 sq ft

54 Old Wolfeboro Rd, Alton, NH 03809

Zoned as commercial • Zoned as residential • 0.57 acre lot

$649,000

5 beds2.5 baths3,940 sq ft

40 Old Wolfeboro Rd, Alton, NH 03809

Attached barn • Custom penny bar • Farmer's porch

$418,000

4 beds3 baths2,068 sq ft

222 Main St, Alton, NH 03809

Minutes to alton bay • Town beach • Two boat ramps

Home values near 166 Main St

Data from public records.

Address	Redfin Estimate
160 Main St, Alton, NH 3 Beds \| 2.5 Baths \| 2949 Sq. Ft.	$494,361
157 Main St, Alton, NH 1 Beds \| 1 Baths \| 1334 Sq. Ft.	$268,821
161 Main St, Alton, NH 4 Beds \| 1.5 Baths \| 1716 Sq. Ft.	$264,820
157 Main St, Alton, NH 1 Beds \| 1 Baths \| 1334 Sq. Ft.	$269,084
167 Main St, Alton, NH 3 Beds \| 1 Baths \| 1182 Sq. Ft.	$333,472
174 Main St, Alton, NH 1 Beds \| 3 Baths \| 2870 Sq. Ft.	$466,952
19 Old Wolfeboro Rd, Alton, NH 4 Beds \| 2 Baths \| 2709 Sq. Ft.	$459,559

Address	Redfin Estimate
167 Main St, Alton, NH 3 Beds \| 1 Baths \| 1182 Sq. Ft.	$344,730
174 Main St, Alton, NH 1 Beds \| 3 Baths \| 2870 Sq. Ft.	$426,002
Main St, Alton, NH 2 Beds \| 1 Baths \| 816 Sq. Ft.	$264,674
160 Main St, Alton, NH 3 Beds \| 2.5 Baths \| 2949 Sq. Ft.	$525,097
161 Main St, Alton, NH 4 Beds \| 1 Baths \| 1805 Sq. Ft.	$353,319
171 Main St, Alton, NH 4 Beds \| 3.5 Baths \| 6011 Sq. Ft.	—
25 Old Wolfeboro Rd, Alton, NH 4 Beds \| 2 Baths \| 2952 Sq. Ft.	$654,366

Address	Redfin Estimate
168 Main St, Alton, NH 3 Beds \| 2 Baths \| 2374 Sq. Ft.	$436,206
153 Main St, Alton, NH 2 Beds \| 1 Baths \| 901 Sq. Ft.	$265,531
171 Main St, Alton, NH 4 Beds \| 3.5 Baths \| 6011 Sq. Ft.	—
153 Main St, Alton, NH 2 Beds \| 1 Baths \| 1104 Sq. Ft.	$306,176
168 Main St, Alton, NH 3 Beds \| 2 Baths \| 2374 Sq. Ft.	$435,396
35 Old Wolfeboro Rd, Alton, NH 5 Beds \| 4 Baths \| 5523 Sq. Ft.	$992,097
1 Old Wolfeboro Rd, Alton, NH 3 Beds \| 2 Baths \| 1400 Sq. Ft.	$600,843

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