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18 Treeline Road, Thornton, NH

Single Family Residence

For SaleActive
6 Beds|5 Baths|3,603 ft²|Built 1972|Thornton

Listed by Riverstone Realty, LLC · Michael Huff

Property Description

*Open House Saturday 5/9 from 10am to Noon!!* 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.

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:68

Primary Features

CountyNH-Grafton
Property TypeResidential
Year Built1972
ZoningGENERA

Interior Features

AppliancesDishwasher, ENERGY STAR Qualified Dishwasher, ENERGY STAR Qualified Dryer, Exhaust Hood, Microwave, Mini Fridge, Double Oven, Wall Oven, Electric Range, Gas Range, ENERGY STAR Qualified Refrigerator, ENERGY STAR Qualified Washer, Electric Water Heater, Induction Cooktop, Wine Cooler
BasementYes
Basement Access TypeWalkout
Basement DescriptionApartment, Climate Controlled, Concrete, Daylight, Exterior Access, Finished, Interior Access, Exterior Stairs, Walkout
1/4 Baths0
3/4 Baths0
CoolingNone
Electric200+ Amp Service, Circuit Breakers
FlooringBamboo, Ceramic Tile, Carpet, Hardwood, Softwood, Slate/Stone, Tile, Vinyl
HeatingPropane, Pellet Stove, Wood, Hot Water, Zoned, Wood Stove
Interior FeaturesBar, Ceiling Fan(s), Draperies, Wood Fireplace, Hearth, Home Theatre Wiring, In-Law/Accessory Dwelling, Kitchen Island, Kitchen/Dining, Master BR w/ BA, Natural Light, Skylight, Wet Bar, Wood Stove Insert, Programmable Thermostat, 1st Floor Laundry
Rooms - Total23
SqFt-Approximate Finished Above Grade3,603
SqFt-Approximate Finished Below Grade1,217
SqFt Approximate Total Finished4,820
SqFt Approximate Total5,020

Location Information

School - DistrictPlymouth School District
School - ElementaryThornton Central School
School - HighPlymouth Regional High School
School - Middle/JrThornton Central School

Financial Details

Foreclosed / Bank-Owned / REONo
Sale IncludesFurnishings
Tax - Gross Amount$10,650
Tax Year2024
Taxes TBDNo

Additional

Construction StatusExisting
ConstructionWood Frame, Cedar, Clapboard
CovenantsUnknown
Flood ZoneNo
Pre-ConstructionNo
Property Sub TypeSingle Family Residence
SeasonalNo
Total StoriesTwo
SurveyedUnknown
Timeshare/Fractional OwnershipNo

External Features

ColorCedar
DrivewayGravel
Exterior FeaturesDeck, Double Pane Window(s)
FoundationConcrete Slab
GarageYes
Garage Capacity3
Lot FeaturesLandscaped, Stream, Subdivided, Trail/Near Trail, Wooded, Abuts Conservation, Mountain, Near Golf Course, Near Paths, Near Skiing
Lot - Acres1.5
Lot - SqFt65,340
ParkingDirect Access, Attached
Road Frontage TypePaved, Public
Road FrontageYes
Road Frontage Length426
RoofMetal, Standing Seam
SewerLeach Field, Septic Tank
UtilitiesCable Connected, Propane
Water SourceDrilled Well, Private
MLS®: PrimeMLS #5086418; Listed by Riverstone Realty, LLC · Michael Huff

Property History

Price, listing activity & annual taxes for this property

No sales history available.

Market Data

Live snapshot computed from active listings in this town

  • Active listings in Thornton61
  • Average list price$941,883
  • Price range$449,900 – $1,750,000
  • Market sentimentBuyer's Market

Mortgage Calculator

Estimate your monthly payment for this home

20%
Loan Term
6.5%
Estimated monthly payment$6,648 / mo
  • Principal & Interest$5,031
  • Property Tax$1,410
  • Home Insurance$207

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.

$995,000/ Asking Price
For SaleActive
Est. $5,031 / mo20% down · 30yr · 6.5%
Tom DeMatteo

Tom DeMatteo

Owl’s Nest Real Estate · Questions?

401-648-5308

Market Sentiment

Buyer's Market
Buyer’s MarketBalancedSeller’s Market

Based on 61 active · 0 sold in Thornton (last 90 days)

PrimeMLS

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.

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Owl's Nest Real Estate

Copyright 2026 PrimeMLS, Inc. 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. This display of listings may or may not be the entire Compilation from the PrimeMLS database, and PrimeMLS does not guarantee the accuracy of such information. The listing broker's offer of compensation is made only to other real estate licensees who are participant members of the PrimeMLS.

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