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Alton Bay, NH Real Estate & Property Data

Alton Bay Real Estate Market Trends

Last Updated: August 30, 2025

Accurate and comprehensive real estate data is critical for insight into Alton Bay, NH 03810. ATTOM’s Alton Bay real estate data is updated daily, and current market trends show that in Alton Bay, NH a total of 69 residential properties have sold over the past year. With a median home price of $565,000 in Alton Bay. Get detailed property data for Alton Bay, NH instantly. ATTOM is your one-stop-shop for the Alton Bay property reports and real estate data you need in Alton Bay, NH.

Alton Bay Real Estate Market Trends

Get property data for any address in Alton Bay, NH or the country:

Total Residential Properties 2,140

Total Commercial Properties 43

Avg. Home Age (Single Family Home) 43 Years

Avg. Square Feet (Single Family Home) 1,906

Total 2025 Residential Sales (year-to-date) 26

% of Homes Seriously Underwater (Q3 2025) 0.41%

Total 2024 Residential Sales 68

% of Equity Rich Homes (Q3 2025) 40.16%

Effective 2024 Property Tax 0.65%

Total Foreclosure Filings (year-to-date) N/A

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Alton Bay, NH 03810 Real Estate Overview

There were 69 residential properties sold in the past year in Alton Bay, NH 03810. The median home value in Alton Bay, NH 03810 is $748,486. There are a total of 2,140 residential properties in the 03810.

Median Sales Price i

$565,000

(Jun 2025)

+41.3%

year-over-year

y-o-y

June '25 Jun '25 $565,000
May '25 May '25 $450,000
April '25 Apr '25 $353,750
March '25 Mar '25 N/A
February '25 Feb '25 N/A
January '25 Jan '25 N/A
December '24 Dec '24 $600,000
November '24 Nov '24 $826,000
October '24 Oct '24 $456,000
September '24 Sep '24 $735,000
August '24 Aug '24 $730,000
July '24 Jul '24 $1,180,500

Median Down Payment i

$130,000

(Jun 2025)

+224.8%

year-over-year

y-o-y

June '25 Jun '25 $130,000
May '25 May '25 $135,000
April '25 Apr '25 $26,250
March '25 Mar '25 N/A
February '25 Feb '25 N/A
January '25 Jan '25 N/A
December '24 Dec '24 N/A
November '24 Nov '24 $435,000
October '24 Oct '24 $200,000
September '24 Sep '24 $151,000
August '24 Aug '24 $168,000
July '24 Jul '24 $658,600

Number of Homes Sold i

7

(Jun 2025)

+133.3%

year-over-year

y-o-y

June '25 Jun '25 7
May '25 May '25 9
April '25 Apr '25 3
March '25 Mar '25 4
February '25 Feb '25 1
January '25 Jan '25 2
December '24 Dec '24 5
November '24 Nov '24 7
October '24 Oct '24 9
September '24 Sep '24 4
August '24 Aug '24 8
July '24 Jul '24 7

Number of Purchase Loans i

5

(Jun 2025)

+400%

year-over-year

y-o-y

June '25 Jun '25 5
May '25 May '25 1
April '25 Apr '25 2
March '25 Mar '25 N/A
February '25 Feb '25 N/A
January '25 Jan '25 N/A
December '24 Dec '24 1
November '24 Nov '24 5
October '24 Oct '24 3
September '24 Sep '24 1
August '24 Aug '24 5
July '24 Jul '24 2

Number of REFI Loans i

7

(Jun 2025)

+75%

year-over-year

y-o-y

June '25 Jun '25 7
May '25 May '25 9
April '25 Apr '25 5
March '25 Mar '25 3
February '25 Feb '25 3
January '25 Jan '25 2
December '24 Dec '24 1
November '24 Nov '24 1
October '24 Oct '24 1
September '24 Sep '24 4
August '24 Aug '24 2
July '24 Jul '24 5

Number of HELOC Loans i

June '25 Jun '25 N/A
May '25 May '25 N/A
April '25 Apr '25 1
March '25 Mar '25 2
February '25 Feb '25 3
January '25 Jan '25 N/A
December '24 Dec '24 2
November '24 Nov '24 N/A
October '24 Oct '24 3
September '24 Sep '24 1
August '24 Aug '24 N/A
July '24 Jul '24 1

Alton Bay, NH 03810 Real Estate Market Overview

Last 30 days

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Street

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Alton Bay, NH 03810 Foreclosure Activity

Total Foreclosure Filings i

June '25 Jun '25 N/A
May '25 May '25 N/A
April '25 Apr '25 N/A
March '25 Mar '25 N/A
February '25 Feb '25 N/A
January '25 Jan '25 N/A
December '24 Dec '24 1
November '24 Nov '24 N/A
October '24 Oct '24 N/A
September '24 Sep '24 N/A
August '24 Aug '24 N/A
July '24 Jul '24 1

Foreclosure Starts i

June '25 Jun '25 N/A
May '25 May '25 N/A
April '25 Apr '25 N/A
March '25 Mar '25 N/A
February '25 Feb '25 N/A
January '25 Jan '25 N/A
December '24 Dec '24 1
November '24 Nov '24 N/A
October '24 Oct '24 N/A
September '24 Sep '24 N/A
August '24 Aug '24 N/A
July '24 Jul '24 1

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