New listing offering a rare waterfront retreat — two adjacent waterfront properties being sold together as one conveyance — welcome to 18 & 20 Treehouse Way on Ayers Pond in Barrington. Together, these two single-family homes offer approximately 300’ of waterfront and a unique opportunity for year-round living, multigenerational use, or a cherished seasonal escape. Situated at the end of a private way, this peaceful compound offers privacy, nature, and flexibility. Designed with classic New England boathouse-inspired architecture, the homes embrace waterfront living with expansive glass, natural gathering spaces, and a seamless connection between indoors and out. 20 Treehouse Way is approximately 2,240± SF. The open floor plan is highlighted by a dramatic wall of windows framing water views and filling the home with natural light. Sliders lead out to the wraparound deck and screened porch — ideal for grilling, relaxing, and enjoying the pond. The kitchen flows into the gathering spaces and porch, while the private primary suite, additional bedrooms, and partially finished walkout lower level provide flexibility for guests, recreation, or work-from-home needs. Two lower-level sliders lead toward the dock. 18 Treehouse Way offers approximately 744± SF above a two-car garage. The open-concept layout makes it ideal as a guest house, in-law setup, studio, or private retreat. The dual-home configuration offers exceptional flexibility for extended family, guests, or potential income opportunities. With a private dock, abundant storage, and a backup generator, these lovingly maintained homes are in exceptional condition and truly move-in ready — this is the waterfront property you have been waiting for.
Active under contract
Listed by: KW Coastal and Lakes & Mountains Realty
$1,380,000
18 Treehouse Way, Barrington, NH 03825
4beds
2,984sqft
Single Family Residence
Built in 1977
1.71 Acres Lot
$-- Zestimate®
$462/sqft
$-- HOA
What's special
Private dockPrivate primary suiteOpen floor planAbundant storageNatural gathering spacesOpen-concept layout
- 17 days |
- 2,020 |
- 137 |
Zillow last checked:
Listing updated:
Listed by:
Justin Kelcourse,
KW Coastal and Lakes & Mountains Realty 603-610-8500
Source: PrimeMLS,MLS#: 5091019
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 4
- Full bathrooms: 3
- 1/2 bathrooms: 1
Heating
- Propane, Baseboard, Direct Vent, Forced Air, Hot Water, Gas Stove, Wood Stove
Cooling
- None
Appliances
- Included: Dishwasher, Microwave, Gas Range, Refrigerator
- Laundry: Laundry Hook-ups
Features
- Cathedral Ceiling(s), Ceiling Fan(s), Dining Area, Kitchen Island, Kitchen/Dining, Kitchen/Living, Living/Dining, Primary BR w/ BA, Natural Light, Natural Woodwork, Walk-In Closet(s)
- Flooring: Carpet, Hardwood
- Basement: Full,Partially Finished,Walkout,Basement Stairs,Interior Entry
Interior area
- Total structure area: 3,363
- Total interior livable area: 2,984 sqft
- Finished area above ground: 2,648
- Finished area below ground: 336
Video & virtual tour
Property
Parking
- Total spaces: 2
- Parking features: Paved, Auto Open, Driveway, Garage
- Garage spaces: 2
- Has uncovered spaces: Yes
Features
- Levels: Two
- Stories: 2
- Patio & porch: Screened Porch
- Exterior features: Deck, Garden, Natural Shade, Private Dock
- Has view: Yes
- View description: Water, Lake
- Has water view: Yes
- Water view: Water,Lake
- Waterfront features: Lake Front, Waterfront
- Body of water: Ayers Pond
- Frontage length: Water frontage: 301
Lot
- Size: 1.71 Acres
- Features: Country Setting, Secluded, Sloped, Wooded, Near Golf Course, Near Shopping
Details
- Parcel number: BRRNM00206B000008L000000
- Zoning description: RES WTRFRNT AYERS LAKE
- Other equipment: Standby Generator
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Contemporary
- Property subtype: Single Family Residence
Materials
- Wood Frame, Wood Siding
- Foundation: Concrete, Concrete Slab
- Roof: Asphalt Shingle
Condition
- New construction: No
- Year built: 1977
Utilities & green energy
- Electric: Circuit Breakers
- Sewer: On-Site Septic Exists, Private Sewer
- Utilities for property: Cable Available, Propane, Underground Gas
Community & HOA
Location
- Region: Barrington
Financial & listing details
- Price per square foot: $462/sqft
- Tax assessed value: $570,900
- Annual tax amount: $25,432
- Date on market: 5/27/2026
Estimated market value
Not available
Estimated sales range
Not available
Not available
Price history
| Date | Event | Price |
|---|---|---|
| 6/4/2026 | Listed for sale | $1,380,000$462/sqft |
Source:  PrimeMLS #5091019 Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2024 | $10,042 +5.4% | $570,900 |
| 2023 | $9,528 +20.6% | $570,900 +43.5% |
| 2022 | $7,898 +1.8% | $397,900 |
| 2021 | $7,759 +12.9% | $397,900 +31.8% |
| 2020 | $6,872 +0.4% | $301,800 |
| 2019 | $6,842 -5.1% | $301,800 +3.7% |
| 2018 | $7,209 +2.9% | $290,900 |
| 2017 | $7,005 -2.5% | $290,900 +5.4% |
| 2016 | $7,187 +3.2% | $276,000 0% |
| 2015 | $6,963 +4.9% | $276,100 |
| 2014 | $6,635 +1.1% | $276,100 -5.5% |
| 2013 | $6,561 +4.7% | $292,100 |
| 2012 | $6,268 +3.5% | $292,100 +0.2% |
| 2011 | $6,057 +6.2% | $291,500 |
| 2010 | $5,705 | $291,500 |
Find assessor info on the county website
Monthly payment
Est. payment$--/mo
Payment breakdown
Explore the cost of this home by adjusting the details. Changes won't be saved.All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
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Climate risks
Neighborhood: 03825
Nearby schools
GreatSchools rating
- NAEarly Childhood Learning CenterGrades: PK-KDistance: 2.9 mi
- 6/10Barrington Middle SchoolGrades: 5-8Distance: 4.4 mi
- 5/10Barrington Elementary SchoolGrades: 1-4Distance: 4.1 mi
Schools provided by the listing agent
- Elementary: Barrington Elementary
- Middle: Barrington Middle
- High: Dover High School
- District: Barrington Sch Dsct SAU #74
Source: PrimeMLS. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
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A local lender can help you make sure your offer is ready when you are.
- New Hampshire
- Strafford County
- Barrington
- 03825
- 18 Treehouse Way
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