18 Treeline
Thornton, NH 03285
- 6 beds
- 5 baths
- 4,820 sqft
- ~2 acre lot
- $228 per sqft
- 1972 build
- 6 days on site
*Open House SATURDAY 4/5/25 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. Agents: ok to schedule and send, all buyer agent relationships honored.
Last checked:
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Last updated Mar 29, 2025
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MLS# 5033199 —
The Building
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Year Built:1972
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Pre-Construction:No
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Construction Status:Existing
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Construction Materials:Wood Frame, Cedar Exterior, Clapboard Exterior
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Architectural Style:Contemporary, Modern Architecture, Multi-Level
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Roof:Metal, Standing Seam
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Foundation:Slab - Concrete
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Equipment:CO Detector, Smoke Detector-Hard Wired, Stove-Pellet, Stove-Wood
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Features - Accessibility:1st Floor Bedroom, 1st Floor Full Bathroom, Grab Bars in Bathroom, Hard Surface Flooring
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Total Stories:2
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Approx SqFt Total:5020
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Approx SqFt Total Finished:4,820 Sqft
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Approx SqFt Finished Above Grade:3,603 Sqft
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Approx SqFt Finished Below Grade:1,217 Sqft
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Approx SqFt Unfinished Above Grade Source:Assessor
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Approx SqFt Unfinished Below Grade:200
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Approx SqFt Finished Building Source:Measured
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Approx SqFt Unfinished Building Source:Estimated
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Approx SqFt Finished Above Grade Source:Measured
Interior
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Total Rooms:23
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Features - Interior:Bar, Ceiling Fan, Draperies, Fireplace - Wood, Hearth, Home Theatre Wiring, In-Law/Accessory Dwelling, Kitchen Island, Kitchen/Dining, Primary BR w/ BA, Natural Light, Skylight, Wet Bar, Wood Stove Insert, Programmable Thermostat, Laundry - 1st Floor
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Flooring:Bamboo, Carpet, Ceramic Tile, Hardwood, Slate/Stone, Softwood, Tile, Vinyl
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Basement:Yes
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Basement Description:Apartments, Climate Controlled, Concrete, Daylight, Finished, Stairs - Exterior, Walkout, Interior Access, Exterior Access
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Basement Access Type:Walkout
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Room 1 Level:1
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Room 2 Level:1
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Room 3 Level:1
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Room 4 Level:1
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Room 5 Level:1
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Room 6 Level:1
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Room 7 Level:1
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Room 8 Level:2
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Room 9 Level:2
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Room 10 Level:2
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Room 11 Level:2
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Room 12 Level:2
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Room 13 Level:2
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Room 14 Level:2
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Room 15 Level:2
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Room 16 Level:2
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Room 17 Level:Basement
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Room 18 Level:Basement
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Room 19 Level:Basement
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Room 20 Level:Basement
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Room 21 Level:Basement
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Room 22 Level:Basement
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Room 1 Type:Kitchen
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Room 2 Type:Living Room
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Room 10 Type:Office/Study
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Room 9 Type:Bath - Full
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Room 8 Type:Primary Bedroom
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Room 7 Type:Mudroom
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Room 5 Type:Bedroom
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Room 4 Type:Other
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Room 3 Type:Dining Room
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Room 6 Type:Bath - Full
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Room 11 Type:Bedroom
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Room 12 Type:Laundry Room
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Room 14 Type:Bonus Room
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Room 13 Type:Bath - Full
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Room 15 Type:Family Room
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Room 16 Type:Bedroom
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Room 17 Type:Bedroom
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Room 18 Type:Bath - Full
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Room 19 Type:Living Room
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Room 20 Type:Kitchen
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Room 21 Type:Playroom
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Room 22 Type:Bedroom
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Rooms Level 1:Level 1: Bedroom, Level 1: Bath - Full, Level 1: Dining Room, Level 1: Kitchen, Level 1: Living Room, Level 1: Mudroom, Level 1: Other
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Rooms: Level 2Level 2: Bedroom, Level 2: Bonus Room, Level 2: Bath - Full, Level 2: Family Room, Level 2: Laundry Room, Level 2: Primary Bedroom, Level 2: Office/Study
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Rooms Level B:Level B: Bedroom, Level B: Bath - Full, Level B: Kitchen, Level B: Living Room, Level B: Playroom
Room Dimensions
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Room 1 Dimensions:40 Sqft
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Room 2 Dimensions:22 Sqft
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Room 3 Dimensions:14 Sqft
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Room 4 Dimensions:0 Sqft
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Room 5 Dimensions:11 Sqft
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Room 7 Dimensions:9 Sqft
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Room 6 Dimensions:10 Sqft
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Room 8 Dimensions:14 Sqft
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Room 9 Dimensions:0 Sqft
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Room 10 Dimensions:17 Sqft
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Room 11 Dimensions:11 Sqft
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Room 12 Dimensions:10 Sqft
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Room 13 Dimensions:7 Sqft
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Room 14 Dimensions:0 Sqft
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Room 15 Dimensions:18 Sqft
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Room 16 Dimensions:29' x 13'8"
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Room 17 Dimensions:In-Law
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Room 18 Dimensions:In-Law
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Room 19 Dimensions:In-Law
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Room 20 Dimensions:In-Law
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Room 21 Dimensions:In-Law
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Room 22 Dimensions:In-Law
Location
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Directions:GPS
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Map:230
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Latitude:43.892041000001001
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Longitude:-71.612320999999994
The Property
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Property Type:Single Family
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Property Class:Residential
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Owned Land:Yes
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Seasonal:No
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Lot:54
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Lot Features:Landscaped, Stream, Subdivision, Trail/Near Trail, Wooded, Abuts Conservation, Mountain, Near Golf Course, Near Paths, Near Skiing
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Lot SqFt:65,340 Sqft
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Lot Acres:1 Sqft
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Zoning:GENERA
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Exterior Features:Deck, Windows - Double Pane
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Driveway:Gravel
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Road Frontage:Yes
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Road Frontage Length:426 Sqft
Listing Agent
- Contact info:
- Office phone:
- (603) 991-3167
Taxes
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Tax Year:2024
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Taxes TBD:No
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Tax - Gross Amount:$10,650
Beds
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Total Bedrooms:6
Baths
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Total Baths:5
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Full Baths:4
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Half Baths:1
The Listing
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Price Per SqFt:228.22
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Foreclosed/Bank-Owned/REO:No
Heating & Cooling
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Heating:Propane, Pellet Stove, Wood, Hot Water, Multi Zone, Stove - Pellet, Stove - Wood
Utilities
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Utilities:Cable - At Site, Gas - LP/Bottle
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Sewer:Leach Field, Septic
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Electric:200 Amp, Circuit Breaker(s)
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Water Source:Drilled Well, Private
Appliances
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Appliances:Dishwasher, Dishwasher - Energy Star, Dryer - Energy Star, Range Hood, Microwave, Mini Fridge, Oven - Double, Oven - Wall, Range - Electric, Range - Gas, Refrigerator-Energy Star, Washer - Energy Star, Water Heater - Electric, Cooktop - Induction, Wine Cooler
Schools
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Elementary School:Thornton Central School
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Middle Or Junior School:Thornton Central School
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High School:Plymouth Regional High School
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School District:Plymouth School District
The Community
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Development / Subdivision:Sugar Run
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Covenants:Unknown
Parking
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Garage:Yes
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Garage Capacity:3
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Parking:Direct Entry, Attached
Monthly cost estimate

Asking price
$1,100,000
Expense | Monthly cost |
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Mortgage
This calculator is intended for planning and education purposes only. It relies on assumptions and information provided by you regarding your goals, expectations and financial situation, and should not be used as your sole source of information. The output of the tool is not a loan offer or solicitation, nor is it financial or legal advice. |
$5,890
|
Taxes | $887 |
Insurance | $302 |
Utilities | $548 See report |
Total | $7,627/mo.* |
*This is an estimate |
Walk Score®
Provided by WalkScore® Inc.
Walk Score is the most well-known measure of walkability for any address. It is based on the distance to a variety of nearby services and pedestrian friendliness. Walk Scores range from 0 (Car-Dependent) to 100 (Walker’s Paradise).
Bike Score®
Provided by WalkScore® Inc.
Bike Score evaluates a location's bikeability. It is calculated by measuring bike infrastructure, hills, destinations and road connectivity, and the number of bike commuters. Bike Scores range from 0 (Somewhat Bikeable) to 100 (Biker’s Paradise).
Air Pollution Index
Provided by ClearlyEnergy
The air pollution index is calculated by county or urban area using the past three years data. The index ranks the county or urban area on a scale of 0 (best) - 100 (worst) across the United Sates.
Sale history
Date | Event | Source | Price | % Change |
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3/23/25
Mar 23, 2025
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Listed / Active | PRIME_MLS | $1,100,000 | 31.0% (16.2% / YR) |
4/26/23
Apr 26, 2023
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PRIME_MLS | $840,000 | -6.2% | |
2/17/23
Feb 17, 2023
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PRIME_MLS | $895,500 |