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.
Active
Listed by: Riverstone Realty, LLC
$995,000
18 Treeline Road, Thornton, NH 03285
6beds
4,820sqft
Est.:
Single Family Residence
Built in 1972
1.5 Acres Lot
$949,900 Zestimate®
$206/sqft
$-- HOA
What's special
Stone fireplaceMaple wallsStudy areaBose-powered tv roomIn-ceiling multi-room audio speakersExtensive wrap-around steel deckWet bar
- 2 days |
- 465 |
- 19 |
Zillow last checked:
Listing updated:
Listed by:
Michael Huff,
Riverstone Realty, LLC 603-991-3167
Source: PrimeMLS,MLS#: 5086418
Tour with a local agent
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 6
- Bathrooms: 5
- Full bathrooms: 4
- 1/2 bathrooms: 1
Heating
- Propane, Pellet Stove, Wood, Hot Water, Zoned, Wood Stove
Cooling
- None
Appliances
- Included: Dishwasher, ENERGY STAR Qualified Dishwasher, ENERGY STAR Qualified Dryer, Range 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
- Laundry: 1st Floor Laundry
Features
- Bar, Ceiling Fan(s), Hearth, Home Theater Wiring, Kitchen Island, Kitchen/Dining, Primary BR w/ BA, Natural Light, Wet Bar, Programmable Thermostat
- Flooring: Bamboo, Carpet, Ceramic Tile, Hardwood, Slate/Stone, Softwood, Tile, Vinyl
- Windows: Drapes, Skylight(s), Double Pane Windows
- Basement: Climate Controlled,Concrete,Daylight,Finished,Exterior Stairs,Walkout,Interior Access,Exterior Entry,Walk-Out Access
- Has fireplace: Yes
- Fireplace features: Wood Burning, Wood Stove Insert
Interior area
- Total structure area: 5,020
- Total interior livable area: 4,820 sqft
- Finished area above ground: 3,603
- Finished area below ground: 1,217
Property
Parking
- Total spaces: 3
- Parking features: Gravel, Direct Entry, Attached
- Garage spaces: 3
Accessibility
- Accessibility features: 1st Floor Bedroom, 1st Floor Full Bathroom, Grab Bars in Bathroom, Hard Surface Flooring
Features
- Levels: Two,Multi-Level
- Stories: 2
- Exterior features: Deck
- Waterfront features: Stream
- Frontage length: Road frontage: 426
Lot
- Size: 1.5 Acres
- Features: Landscaped, Subdivided, Trail/Near Trail, Wooded, Abuts Conservation, Mountain, Near Golf Course, Near Paths, Near Skiing
Details
- Parcel number: THORM00012L000005S000005
- Zoning description: GENERA
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Contemporary,Modern Architecture
- Property subtype: Single Family Residence
Materials
- Wood Frame, Cedar Exterior, Clapboard Exterior
- Foundation: Concrete Slab
- Roof: Metal,Standing Seam
Condition
- New construction: No
- Year built: 1972
Utilities & green energy
- Electric: 200+ Amp Service, Circuit Breakers
- Sewer: Leach Field, Septic Tank
- Utilities for property: Cable at Site, Propane
Community & HOA
Community
- Security: Carbon Monoxide Detector(s), Hardwired Smoke Detector
- Subdivision: Sugar Run
Location
- Region: Thornton
Financial & listing details
- Price per square foot: $206/sqft
- Tax assessed value: $480,600
- Annual tax amount: $10,650
- Date on market: 5/1/2026
- Road surface type: Paved
Estimated market value
$949,900
$874,000 - $1.04M
$6,397/mo
Price history
| Date | Event | Price |
|---|---|---|
| 5/1/2026 | Listed for sale | $995,000$206/sqft |
Source: | ||
| 9/11/2025 | Listing removed | $995,000$206/sqft |
Source: | ||
| 5/2/2025 | Price change | $995,000-9.5%$206/sqft |
Source: | ||
| 3/23/2025 | Listed for sale | $1,100,000+31%$228/sqft |
Source: | ||
| 4/26/2023 | Sold | $840,000-6.2%$174/sqft |
Source: | ||
| 10/28/2022 | Listed for sale | $895,500+113.2%$186/sqft |
Source: | ||
| 11/5/2019 | Sold | $420,000+55.6%$87/sqft |
Source: | ||
| 3/23/2007 | Sold | $270,000$56/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2024 | $9,665 | $480,600 |
| 2023 | $9,665 | $480,600 |
| 2022 | $9,665 | $480,600 |
| 2021 | $9,665 | $480,600 |
| 2020 | $9,665 +19.9% | $480,600 +11.4% |
| 2019 | $8,062 +23% | $431,600 +34.8% |
| 2018 | $6,556 +4.8% | $320,100 |
| 2017 | $6,255 +0.8% | $320,100 |
| 2016 | $6,207 +4% | $320,100 +2.4% |
| 2015 | $5,969 | $312,500 |
Find assessor info on the county website
Monthly payment
Est. payment
$6,142/mo
Principal & interest
$4815
Property taxes
$1327
More affordability tools
Climate risks
Neighborhood: 03285
Nearby schools
GreatSchools rating
- 7/10Thornton Central SchoolGrades: K-8Distance: 2.6 mi
- 5/10Plymouth Regional High SchoolGrades: 9-12Distance: 10.1 mi
Schools provided by the listing agent
- Elementary: Thornton Central School
- Middle: Thornton Central School
- High: Plymouth Regional High School
- District: Plymouth School District
Source: PrimeMLS. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
A local agent can set up tours, give advice and negotiate with sellers.
A local lender can help you make sure your offer is ready when you are.
- New Hampshire
- Grafton County
- Thornton
- 03285
- 18 Treeline Road



