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18 Mainmast Cir, New Castle, NH 03854
18 Mainmast Cir, New Castle, NH 03854
18 Mainmast Cir, New Castle, NH 03854
18 Mainmast Cir, New Castle, NH 03854
18 Mainmast Cir, New Castle, NH 03854
18 Mainmast Cir, New Castle, NH 03854
18 Mainmast Cir, New Castle, NH 03854

18 Mainmast Cir New Castle, NH 03854

$2,400,000

ACTIVE
Beds
6
Baths
4
Sqft
3,243
Acres
0.25
Year
1974
Days on Site
22
Property Type
Residential
Sub Type
Single Family
Per Square Foot
$740
Date Listed
Jan 16, 2026

Description of 18 Mainmast Cir, New Castle, NH 03854

Listing details for 18 Mainmast Cir, New Castle, NH 03854 : Experience exceptional living in this rare 6-bedroom, 4-bath home set on a beautifully wooded and private lot in desirable New Castle, NH. Designed for both everyday comfort and impressive entertaining. This home features an open-concept kitchen and living area with soaring cathedral ceilings that create a sense of light and spaciousness. The chef’s kitchen is equipped with top-of-the-line appliances and an spacial flow into the main living space. A stunning stone fireplace anchors the room, offering warmth and architectural impact. With its unusually generous square footage for New Castle, this home provides remarkable flexibility—ideal for living, hosting guests, and dedicated work and creative spaces. Enjoy peaceful, wooded surroundings just moments from the coast. Combining space, privacy, and New Castle’s coveted low tax rate, this property offers an outstanding opportunity in one of New Hampshire’s most sought-after communities.
Listing Updated : 01-16-2026 at 01:27 PM EST
Home Details
18 Mainmast Cir, New Castle, NH 03854
Status
Active
MLS #ID
5070418
Price
$2,400,000
Bedrooms
6
Bathrooms
4
Square Footage
3,243
Acres
0.25
Year
1974
Days on Site
22
Property Type
Residential
Property Sub Type
Single-Family
Price per Sq Ft
$740
Date Listed
Jan 16, 2026
Community Information for 18 Mainmast Cir, New Castle, NH 03854
Address
18 Mainmast Cir
State
New Hampshire
Zip Code 03854
Subdivision
Utilities
Sewer
Pump Up
Water Source
Public
Interior
Interior Features
Wood Fireplace and Wood Stove Hook-up
Appliances
Gas Cooktop, Dishwasher, Double Oven and Refrigerator
Heating
Hot Air
Cooling
None
Fireplace
No
Exterior
Roof
Asphalt Shingle
Foundation
Concrete
HOA
Has HOA
None
Additional Information
Styles
Contemporary and Multi-Level
Price per Sq Ft
$740
Source

PrimeMLS, MLS#: 5070418

Comments
Home Worth Check

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Location of 18 Mainmast Cir, New Castle, NH 03854

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This beautiful 6 beds 4 baths home is located at 18 Mainmast Cir, New Castle, NH 03854 and is listed for sale at $2,400,000.00. This home was built in 1974, contains 3243 square feet of living space, and sits on a 0.25 acre lot. This residential home is priced at $740.06 per square foot.

If you'd like to request a tour or more information on 18 Mainmast Cir, New Castle, NH 03854, please call us at (603) 766-1980 so that we can assist you in your real estate search. To find homes like 18 Mainmast Cir, New Castle, NH 03854, you can search homes for sale in New Castle , or by 03854 . We are here to help when you're ready to contact us!

Schools Near 18 Mainmast Cir, New Castle, NH 03854

Home Details
18 Mainmast Cir, New Castle, NH 03854
Status
Active
MLS #ID
5070418
Price
$2,400,000
Bedrooms
6
Bathrooms
4
Square Footage
3,243
Acres
0.25
Year
1974
Days on Site
22
Property Type
Residential
Property Sub Type
Single-Family
Price per Sq Ft
$740
Date Listed
Jan 16, 2026
Community Information for 18 Mainmast Cir, New Castle, NH 03854
Address
18 Mainmast Cir
State
New Hampshire
Zip Code 03854
Subdivision
Utilities
Sewer
Pump Up
Water Source
Public
Interior
Interior Features
Wood Fireplace and Wood Stove Hook-up
Appliances
Gas Cooktop, Dishwasher and Double Oven
Heating
Hot Air
Cooling
None
Fireplace
No
Exterior
Roof
Asphalt Shingle
Foundation
Concrete
HOA
Has HOA
None
Additional Information
Styles
Contemporary and Multi-Level
Price per Sq Ft
$740
Source

PrimeMLS, MLS#: 5070418

Comments
HomeNew Castle