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Active
$795,000
3beds
1,929sqft

23 Riverlake Street, Alton, NH 03810

3beds
1,929sqft
Single family residence
Built in 1965
0.25 Acres
2 Garage spaces
$412 price/sqft

What's special

Detached garagePrivate boathouseFlexible spaceBonus roomThree-bedroom two-bath waterfront home

Set along the Merrymeeting River in the heart of Alton Bay, this three-bedroom, two-bath waterfront home offers approximately 1,900 square feet of living space plus a bonus room, with direct boating access to Lake Winnipesaukee once you pass beneath the Merrymeeting River Bridge. Inside, the layout is bright and open, with ...

20 days
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9,126
|
402
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Source: PrimeMLS,MLS#: 5098414MLS Logo
Travel times

Living Room

Kitchen

Bedroom

Zillow last checked:

Listing updated:

Listed by:

Gerard Costantino,

Costantino Real Estate LLC - Wolfeboro 603-515-1925,

Matthew Costantino,

Costantino Real Estate LLC - Wolfeboro

Source: PrimeMLS,MLS#: 5098414MLS Logo

Facts & features

Interior

Bedrooms & bathrooms
  • Bedrooms: 3
  • Bathrooms: 2
  • Full bathrooms: 2
Heating
  • Hot Water
Cooling
  • None
Appliances
  • Included: Dishwasher, Electric Range
Features
  • Kitchen/Living
  • Flooring: Carpet, Laminate
  • Basement: Finished,Interior Stairs,Interior Access,Exterior Entry,Walk-Out Access
  • Number of fireplaces: 2
  • Fireplace features: 2 Fireplaces
Interior area
  • Total structure area: 1,929
  • Total interior livable area: 1,929 sqft
  • Finished area above ground: 1,003
  • Finished area below ground: 926

Property

Parking
  • Total spaces: 2
  • Parking features: Paved, Driveway, Garage
  • Garage spaces: 2
  • Has uncovered spaces: Yes
Features
  • Stories: 1.25
  • Patio & porch: Patio, Porch
  • Exterior features: Boat Slip/Dock, Private Dock
  • Has view: Yes
  • View description: Water, Lake
  • Has water view: Yes
  • Water view: Water,Lake
  • Waterfront features: Deep Water Access, Lake Access, River Front, Waterfront
  • Body of water: Merrimack River
  • Frontage length: Road frontage: 100
Lot
  • Size: 0.25 Acres
Details
  • Additional structures: Boat House
  • Parcel number: ALTNM32B17
  • Zoning description: RC-RES COM

Construction

Type & style
  • Home type: SingleFamily
  • Architectural style: Colonial
  • Property subtype: Single Family Residence
Materials
  • Wood Frame
  • Foundation: Concrete
  • Roof: Asphalt Shingle
Condition
  • New construction: No
  • Year built: 1965

Utilities & green energy

  • Electric: 200+ Amp Service
  • Sewer: Private Sewer
  • Utilities for property: Cable at Site

Community & HOA

Location
  • Region: Alton Bay

Financial & listing details

  • Price per square foot: $412/sqft
  • Tax assessed value: $473,200
  • Annual tax amount: $5,463
  • Date on market: 7/7/2026

Price history

DateEventPrice
7/7/2026Listed for sale$795,000+6%$412/sqft
Source: PrimeMLS #5098414 Report a problem
1/26/2026Listing removed$750,000$389/sqft
Source: PrimeMLS #5046652 Report a problem
10/28/2025Price change$750,000-5.7%$389/sqft
Source: PrimeMLS #5046652 Report a problem
9/12/2025Price change$795,000-6.5%$412/sqft
Source: PrimeMLS #5046652 Report a problem
6/16/2025Listed for sale$849,999+31782.9%$441/sqft
Source: PrimeMLS #5046652 Report a problem
4/29/2020Listing removed$1,750$1/sqft
Source: RE/MAX By the Lake #4801072 Report a problem
4/12/2020Listed for rent$1,750$1/sqft
Source: RE/MAX By the Lake #4801072 Report a problem
4/25/2019Listing removed$1,750$1/sqft
Source: RE/MAX By the Lake #4740282 Report a problem
3/14/2019Listed for rent$1,750$1/sqft
Source: RE/MAX By the Lake #4740282 Report a problem
3/8/2018Listing removed$1,750$1/sqft
Source: RE/MAX BY THE LAKE #4676463 Report a problem
2/13/2018Listed for rent$1,750$1/sqft
Source: RE/MAX By the Lake #4676463 Report a problem
6/26/2009Sold$2,666$1/sqft
Source: Agent Provided Report a problem

Public tax history

YearProperty taxesTax assessment
2024$6,142 -1.5%$473,200
2023$6,237 +15.9%$473,200
2022$5,380 +5.7%$473,200 +29.7%
2021$5,089 $364,800
2020$5,089 +11.5%$364,800
2019$4,564 -9.3%$364,800 +1.4%
2018$5,034 +8.8%$359,800
2017$4,627 -3.3%$359,800 +6.4%
2016$4,784 +9.2%$338,100 +10.2%
2015$4,379 +3.2%$306,900 +0.2%
2014$4,244 +5.4%$306,400 +2.3%
2013$4,027 +0%$299,600 +1.8%
2012$4,025 -1.1%$294,200 -5.5%
2011$4,069 +0.9%$311,300 -8.7%
2009$4,033 $340,900

Find assessor info on the county website

Monthly payment

Est. payment
$4,849/mo
Principal & interest
$4100
Property taxes
$749
More affordability toolsChevron Right

Estimated market value

$753,900

$716,000 - $792,000

$2,567/mo

Climate risks

Explore flood, wildfire, and other predictive climate risk information for this property on First Street®️.

Neighborhood: 03810

Nearby schools

Alton Central School (Elem)
Grades PK-81.3 miles
5/10
GreatSchools® Rating
Test Score Rating
3/10
Student Progress Rating
7/10
Prospect Mountain High School
Grades 9-122.4 miles
4/10
GreatSchools® Rating
College Readiness Rating
4/10
Prospect Mountain High School
Grades 9-122.4 miles
N/A
GreatSchools® Rating