INNOVATE Real Estate
Single Family Residence at 23 Riverlake Street, Alton
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56 photos

$795,000

Under contract
23 Riverlake Street
Alton, NH 03810
Listed by Gerard Costantino · Costantino Real Estate LLC - Wolfeboro
Bedrooms
3
Bathrooms
2
Living area
N/A
Year built
1965

About this 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 water views from the main living areas and flexible space that suits full-time residents, second-home owners, or those exploring a Lakes Region rental. The bonus room adds useful square footage for a home office, den, or guest overflow. The waterfront setup is the standout feature. A private boathouse and dock sit right at the river's edge, and a detached garage handles storage for a boat trailer, kayaks, paddleboards, and seasonal gear. Cast off from your own slip and reach the big lake within minutes. Location is another draw. Downtown Alton Bay's shops, restaurants, public beach, bandstand, and summer events sit just up the road, giving this address the feel of a village neighborhood with true Winnipesaukee access. The area stays active through the warm months and settles into a quiet lakeside rhythm off-season. A Merrymeeting River waterfront with a boathouse, dock, garage, and boat access to Lake Winnipesaukee, all within walking range of downtown Alton Bay.

Highlights

Waterfront

Property details

MLS
Prime MLS
MLS #
5098414
Property type
Single Family Residence
Subdivision
N/A
Status
Under contract
Days on market
32
On market date
N/A
Stories
N/A
Total bathrooms
2
Garage spaces
2
Parking spaces
N/A
Lot size
0.25 acres

Location

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Nearby schools

Within 10 miles. School directory data from the National Center for Education Statistics (NCES), accessed via the Urban Institute Education Data API. Local Score is calculated by INNOVATE Real Estate; where a state rating is shown, it comes from that state's own official school report card.

Elementary
Alton Central School (Elem)
1.24 mi away · Grades -1-8
Nearest school -- attendance-zone data not available here
5.0
Local Score (student-teacher ratio only (preliminary -- will incorporate state test-score data once available)) -- not an official state rating
Enrollment
407
Student:teacher ratio
9.5:1
District
Alton School District
Middle
Kingswood Regional Middle School
7.79 mi away · Grades 7-8
Nearest school -- attendance-zone data not available here
5.0
Local Score (student-teacher ratio only (preliminary -- will incorporate state test-score data once available)) -- not an official state rating
Enrollment
375
Student:teacher ratio
10.4:1
District
Governor Wentworth Reg School District
High
Prospect Mountain High School
2.38 mi away · Grades 9-12
Nearest school -- attendance-zone data not available here
5.0
Local Score (student-teacher ratio only (preliminary -- will incorporate state test-score data once available)) -- not an official state rating
Enrollment
413
Student:teacher ratio
9.8:1
District
Prospect Mountain School District

Walkability

Blended score for Alton's center, calculated by INNOVATE Real Estate from two sources: the EPA's National Walkability Index (street network, transit, land-use mix) and Google Places amenity data (what's actually reachable on foot from this point). 60% EPA National Walkability Index + 40% nearby-amenity density (Google Places).

22
Car-dependent
out of 100
EPA National Walkability Index
5.8 / 20 -- Below average walkable
Google Places amenity density
10 / 100
Restaurants & cafes0
Grocery stores0
Parks2
Schools0
Transit stops0
Pharmacies0

Market position

How this listing compares to current activity in Alton, from live MLS data.

On the market 32 days -- 77 fewer days than Alton's current average of 109 days.
For reference, the median list price across 104 active listings in Alton right now is $599,000.

Mortgage calculator

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Est. monthly payment
$4,938/mo
$159,000 down
$636,000 loan
Principal & interest$4,125
Property tax (est.)$663
Home insurance (est.)$150

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Copyright 2026 PrimeMLS. All rights reserved. This information is deemed reliable, but not guaranteed. The data relating to real estate displayed on this Site comes in part from the IDX Program of PrimeMLS. The information being provided is for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Data last updated 08/07/26.