Listed by Riverstone Realty, LLC · Michael Huff · 603-991-3167
Single Family Residence · Thornton, NH
18 Treeline Road, Thornton, NH
Sugar Run
$995,000
Est. $5,031/mo · 20% down, 30-yr, 6.5% (Owl’s Nest Real Estate estimate, not MLS data)
- Beds
- 6
- Baths
- 5
- Sq Ft
- 3,603
- Built
- 1972
- MLS®
- #5086418
Property Description
Here's your chance at a Thornton single-family home: 18 Treeline Road, priced at $995,000. Expect 6 bedrooms, 5 bathrooms and 3,603 square feet of living space. Homes like this trade on the fundamentals: space, privacy and a New Hampshire address that works year-round. Also on the sheet: a 1.5-acre lot, garage parking for 3 and 1972 construction. Scroll on for current photos, the complete spec sheet and this Thornton listing's market context.
White Mountains Contemporary Luxury 5 Bedroom, 3 Bathroom Home With Separate 1BR, 1.5 BA In-Law Apartment. With an Exceptional Short Term Rental History, and approximately 5,000 square feet of high-end features and finishes, including a chef's kitchen, maple walls, a wet bar, stone fireplace, in-ceiling multi-room audio speakers, Bose-powered TV room, study area, and an extensive wrap-around steel deck, this home excels at entertaining and is in a great central location to access skiing, hiking, fishing, boating, and everything the White Mountains and neighboring Lakes Region have to offer. In addition to the successful short-term rental history, there is a basement level 1BR and 1.5 BA In-Law Apartment with separate, ground level entrances. Featured in the Boston Globe for its unique architectural design for its use of triangles in almost every room, this is a must-see house. There is an attached 3 car with plenty of room to store all of your toys. Recent improvements include the replacement of the septic system with a six bedroom state approved system, and the expansion of the in-law apartment to include the new playroom. The home is being sold furnished, and fiber-optic internet is available as well. Due to the busy rental schedule, select showings by appointment only.
Location Highlights
18 Treeline Road is a single family residence in Thornton, New Hampshire, listed at $995,000. That works out to about $276 per square foot, for a home built in 1972. It has been on the market for 6 months.
From here it is 2.5 miles to Owl's Nest Resort and 6 miles to Waterville Valley Resort. At this latitude, Thornton averages roughly 8.4 hours of sun a day in June and 3.6 in December.
Zoned schools in the Plymouth School District: Thornton Central School (Elementary), Thornton Central School (Middle), PlymouthRe (High). Always confirm zoning with the district office.
Source: zoned school names are PrimeMLS listing data; distances, sun exposure and school facts are Owl’s Nest Real Estate additions (school facts from the NCES, U.S. Department of Education) — not PrimeMLS data.
Property Details
Essentials & finishes
- Bedrooms
- 6
- Total Baths
- 5
- Full Baths
- 4
- SqFt
- 3,603
- Price / SqFt
- $276.16
- Property Type
- Single Family Residence
- Year Built
- 1972
- County
- NH-Grafton
- Town
- Thornton, NH
- Status
- Active
- Days on Market
- 179
Primary Features
- County
- NH-Grafton
- Property Type
- Residential
- Year Built
- 1972
- Zoning
- GENERA
Interior Features
- Appliances
- Induction Cooktop, Dishwasher, ENERGY STAR Qualified Dryer, ENERGY STAR Qualified Dishwasher, Electric Water Heater, Range Hood, Microwave, Mini Fridge, Double Oven, Wall Oven, Electric Range, Gas Range, ENERGY STAR Qualified Refrigerator, ENERGY STAR Qualified Washer, Wine Cooler
- Basement
- Yes
- Basement Access Type
- Walkout
- Basement Description
- Apartment, Climate Controlled, Concrete, Daylight, Finished, Interior Entry, Exterior Entry, Exterior Stairs, Walk-Out Access
- 1/4 Baths
- 0
- 3/4 Baths
- 0
- Cooling
- None
- Electric
- 200+ Amp Service, Circuit Breakers
- Flooring
- Bamboo, Carpet, Ceramic Tile, Hardwood, Softwood, Slate/Stone, Tile, Vinyl
- Heating
- Propane, Pellet Stove, Hot Water, Zoned, Wood, Wood Stove
- Interior Features
- Bar, Ceiling Fan(s), Draperies, Wood Fireplace, Hearth, Home Theater Wiring, In-Law/ADU, Kitchen Island, Kitchen/Dining, Primary BR w/ BA, Natural Light, Skylight, Wet Bar, Wood Stove Insert, Programmable Thermostat, 1st Floor Laundry
- Rooms - Total
- 23
- SqFt-Approximate Finished Above Grade
- 3,603
- SqFt-Approximate Finished Below Grade
- 1,217
- SqFt Approximate Total Finished
- 4,820
- SqFt Approximate Total
- 5,020
Location Information
- School - District
- Plymouth School District
- School - Elementary
- Thornton Central School
- School - High
- PlymouthRe
- School - Middle/Jr
- Thornton Central School
Financial Details
- Sale Includes
- Furnishings
- Tax - Gross Amount
- $10,650
- Tax Year
- 2024
- Taxes TBD
- No
Additional
- Construction Status
- Existing
- Construction
- Cedar, Clapboard, Wood Frame
- Covenants
- Unknown
- Flood Zone
- No
- Pre-Construction
- No
- Property Sub Type
- Single Family Residence
- Seasonal
- No
- Total Stories
- Two
- Surveyed
- Unknown
- Timeshare/Fractional Ownership
- No
External Features
- Color
- Cedar
- Driveway
- Gravel
- Exterior Features
- Deck, Double Pane Window(s)
- Foundation
- Concrete Slab
- Garage
- Yes
- Garage Capacity
- 3
- Lot Features
- Landscaped, Subdivided, Trail/Near Trail, Wooded, Abuts Conservation, Mountain, Near Golf Course, Near Paths, Near Skiing
- Lot - Acres
- 1.5
- Lot - SqFt
- 65,340
- Parking
- Attached, Direct Access
- Road Frontage Type
- Paved, Public
- Road Frontage
- Yes
- Road Frontage Length
- 426
- Roof
- Metal, Standing Seam
- Sewer
- Leach Field, Septic Tank
- Utilities
- Cable at Site, Propane
- Water Source
- Drilled Well, Private
MLS®: PrimeMLS #5086418; Listed by Riverstone Realty, LLC · Michael Huff · 603-991-3167
Property History
Estimated annual taxes for this property
- 2024
- $16,915
- 2023
- $16,492
- 2022
- $16,069
Source: Owl’s Nest Real Estate estimate from the list price at New Hampshire’s average effective tax rate — not PrimeMLS or town assessor data. Verify with the town assessor.
Market Data
Live snapshot computed by Owl’s Nest Real Estate from PrimeMLS IDX active listings in this town
- Active listings in Thornton
- 66
- Average list price
- $523,217
- Price range
- $25,000 – $1,250,000
Mortgage Calculator
Estimate your monthly payment for this home
Estimated Monthly Payment
$6,648/ mo
- Principal & Interest
- $5,031
- Property Tax
- $1,410
- Home Insurance
- $207
Source: Owl’s Nest Real Estate estimate, not PrimeMLS data. Estimates use typical New Hampshire costs — a 1.7% effective property-tax rate, insurance at 0.25% of home value/yr, and PMI below 20% down. Actual town tax rates vary; verify with your lender and the town assessor.
Around This Property
Schools, everyday places and nearby destinations near 18 Treeline Road, Thornton, NH
Assigned Schools
- Elementary
- Thornton Central School
- Middle
- Thornton Central School
- High School
- PlymouthRe
- District
- Plymouth School District
Source: Google Maps Platform (Places) and Owl’s Nest Real Estate — not PrimeMLS data.
Questions About This Listing
How much does 18 Treeline Road cost?
18 Treeline Road in Thornton, NH is listed for $995,000 on PrimeMLS.
That is about $276 per square foot of finished living space.
It came on the market on May 1, 2026.
How many bedrooms and bathrooms does 18 Treeline Road have?
18 Treeline Road in Thornton, NH has 6 bedrooms and 5 bathrooms (4 full and 1 half) in 3,603 square feet of finished living space.
Counting 1,217 finished square feet below grade, the MLS lists 4,820 finished square feet in total.
What heating and cooling does 18 Treeline Road have?
18 Treeline Road in Thornton, NH is heated by propane, pellet stove, hot water, zoned, wood and wood stove, per the MLS.
The MLS lists no cooling system.
What are the water and sewer systems at 18 Treeline Road?
18 Treeline Road in Thornton, NH has a private drilled well and a private septic system, per the MLS.
MLS details — water: drilled well and private; sewer: leach field and septic tank.
Electric: 200+ amp service and circuit breakers.
Other utilities: cable at site and propane.
Plan a water test and septic inspection during your inspection period.
Does 18 Treeline Road have a basement?
Yes. 18 Treeline Road in Thornton, NH has a basement with walkout access, including 1,217 finished square feet.
The MLS describes it as apartment, climate controlled, concrete, daylight, finished, interior entry, exterior entry and exterior stairs.
What are the key features of 18 Treeline Road?
Inside, the MLS lists these features at 18 Treeline Road in Thornton, NH: bar, ceiling fan(s), draperies, wood fireplace, hearth, home theater wiring, in-law/ADU and kitchen island.
Outside: deck and double pane window(s).
Flooring: bamboo, carpet, ceramic tile, hardwood and softwood.
Listed appliances: induction cooktop, dishwasher, ENERGY STAR qualified dryer, ENERGY STAR qualified dishwasher, electric water heater, range hood, microwave, mini fridge, double oven and wall oven; confirm which ones convey in the purchase agreement.
The MLS says the sale includes furnishings.
What parking does 18 Treeline Road have?
18 Treeline Road in Thornton, NH has a 3-car garage and a gravel driveway.
Parking details: attached and direct access.
What school district is 18 Treeline Road in?
The MLS places 18 Treeline Road in Thornton, NH in the Plymouth School District.
Listed schools: Thornton Central School (elementary), Thornton Central School (middle) and PlymouthRe (high).
School assignments can change; confirm with the district.
Is 18 Treeline Road still for sale?
Yes. 18 Treeline Road in Thornton, NH is listed as Active on PrimeMLS (MLS #5086418).
Status can change quickly; contact us to confirm availability before you visit.
Which brokerage has 18 Treeline Road listed?
18 Treeline Road in Thornton, NH is listed by Michael Huff of Riverstone Realty, LLC (603-991-3167).
Owl's Nest Real Estate shows it through the PrimeMLS IDX feed; we are not the listing brokerage.
What type of home is 18 Treeline Road?
18 Treeline Road in Thornton, NH is a single-family home built in 1972.
The MLS lists its style as Contemporary, Modern Architecture, Multi-Level, with two stories.
What town is 18 Treeline Road in?
18 Treeline Road is in Thornton, New Hampshire 03285, in Grafton County.
Location notes from the MLS: trail/near trail, abuts conservation, near golf course, near paths and near skiing.
Our Thornton NH guide covers the town and its current listings.
What is the lot size of 18 Treeline Road?
18 Treeline Road in Thornton, NH sits on 1.5 acres, per the MLS.
The lot is described as landscaped, subdivided, wooded and mountain.
It has 426 feet of road frontage (paved and public).
Zoning: GENERA.
The MLS lists it as outside a flood zone.
What are the annual property taxes for 18 Treeline Road?
Annual property taxes on 18 Treeline Road in Thornton, NH are $10,650 for the 2024 tax year, per the MLS.
New Hampshire towns set their own tax rates and revalue periodically, so confirm the current bill with the Thornton assessing office.
How does the price of 18 Treeline Road compare with other Thornton listings?
At $995,000, 18 Treeline Road in Thornton, NH is priced close to the $972,500 median asking price of the 34 single-family homes for sale in Thornton on PrimeMLS as of November 4, 2026 (this listing included).
That figure is Owl's Nest Real Estate's analysis of active listings, and asking prices are not sale prices — ask us for recent comparable sales before you make an offer.
How can I see 18 Treeline Road in person?
To see 18 Treeline Road in Thornton, NH, use Request a Showing on this page or call Owl's Nest Real Estate at 401-648-5308.
We can show any MLS-listed home and represent you as your buyer's agent; the listing brokerage represents the seller.
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NOTE: This representation is based in whole or in part on data generated by PrimeMLS, Inc., which assumes no responsibility for its accuracy. The data relating to real estate displayed on this site comes in part from the IDX Program of PrimeMLS.
This listing data is intended 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 11/03/26.