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Presented by
The One Team |
18 Mainmast Circle, New Castle, NH, 03854 | $2,200,000
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.
Features
- Rooms: 9
- Bedrooms: 6
- Baths: 2 full / 1 three-quarter / 1 half
- Style: Contemporary,Multi-Level
- Year Built: 1968
- Heating: Hot Air
- Cooling: None
- Basement: Basement Stairs
- Approx Sq. Feet: 3,730
- Acreage: 0.25
- Lot Desc: Wooded
- Elem. School: Maude H. Trefethen School
- Middle School: Rye Junior High School
- High School: Portsmouth High School
- School District: Portsmouth
- MLS#: 5070418
- Website: https://www.raveis.com
/eprop/5070418/18mainmastcircle_newcastle_nh?source=qrflyer
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 PrimMLS. 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. Data last updated 5/2/2026
William Raveis Family of Services
Our family of companies partner in delivering quality services in a one-stop-shopping environment. Together, we integrate the most comprehensive real estate, mortgage and insurance services available to fulfill your specific real estate needs.
The One TeamSales Associates
OneandCompany@raveis.com
Our family of companies offer our clients a new level of full-service real estate. We shall:
- Market your home to realize a quick sale at the best possible price
- Place up to 20+ photos of your home on our website, raveis.com
- Provide frequent communication and tracking reports showing the Internet views your home received on raveis.com
- Showcase your home on raveis.com with a larger and more prominent format
- Give you the full resources and strength of William Raveis Real Estate, Mortgage & Insurance and our cutting-edge technology
To learn more about our credentials, visit raveis.com today.
Kevin DeTullioVP, Mortgage Banker / Production Manager, William Raveis Mortgage, LLC
NMLS Mortgage Loan Originator ID 1724767
203.305.5736
Kevin.DeTullio@Raveis.com
Our Executive Mortgage Banker:
- Is available to meet with you in our office, your home or office, evenings or weekends
- Offers you pre-approval in minutes!
- Provides a guaranteed closing date that meets your needs
- Has access to hundreds of loan programs, all at competitive rates
- Is in constant contact with a full processing, underwriting, and closing staff to ensure an efficient transaction
Brian SkellyVP, Mortgage Banker, William Raveis Mortgage, LLC
NMLS Mortgage Loan Originator ID 793093
203.415.2989
Brian.Skelly@raveis.com
Our Executive Mortgage Banker:
- Is available to meet with you in our office, your home or office, evenings or weekends
- Offers you pre-approval in minutes!
- Provides a guaranteed closing date that meets your needs
- Has access to hundreds of loan programs, all at competitive rates
- Is in constant contact with a full processing, underwriting, and closing staff to ensure an efficient transaction
Diane PadelliInsurance Sales Director, William Raveis Insurance
203.444.0494
Diane.Padelli@raveis.com
Our Insurance Division:
- Will Provide a home insurance quote within 24 hours
- Offers full-service coverage such as Homeowner's, Auto, Life, Renter's, Flood and Valuable Items
- Partners with major insurance companies including Chubb, Kemper Unitrin, The Hartford, Progressive,
Encompass, Travelers, Fireman's Fund, Middleoak Mutual, One Beacon and American Reliable
18 Mainmast Circle, New Castle, NH, 03854
$2,200,000
The One Team
Sales Associates
William Raveis Real Estate
Phone: 860.850.0500
OneandCompany@raveis.com
Kevin DeTullio
VP, Mortgage Banker / Production Manager
William Raveis Mortgage, LLC
Phone: 203.305.5736
Kevin.DeTullio@Raveis.com
NMLS Mortgage Loan Originator ID 1724767
Brian Skelly
VP, Mortgage Banker
William Raveis Mortgage, LLC
Phone: 203.415.2989
Brian.Skelly@raveis.com
NMLS Mortgage Loan Originator ID 793093
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5/6 (30 Yr) Adjustable Rate Jumbo* |
30 Year Fixed-Rate Jumbo |
15 Year Fixed-Rate Jumbo |
|
|---|---|---|---|
| Loan Amount | $1,760,000 | $1,760,000 | $1,760,000 |
| Term | 360 months | 360 months | 180 months |
| Initial Interest Rate** | 5.375% | 6.125% | 5.875% |
| Interest Rate based on Index + Margin | 8.125% | ||
| Annual Percentage Rate | 6.117% | 6.235% | 6.058% |
| Monthly Tax Payment | N/A | N/A | N/A |
| H/O Insurance Payment | $125 | $125 | $125 |
| Initial Principal & Interest Pmt | $9,855 | $10,694 | $14,733 |
| Total Monthly Payment | $9,980 | $10,819 | $14,858 |
* The Initial Interest Rate and Initial Principal & Interest Payment are fixed for the first and adjust every six months thereafter for the remainder of the loan term. The Interest Rate and annual percentage rate may increase after consummation. The Index for this product is the SOFR. The margin for this adjustable rate mortgage may vary with your unique credit history, and terms of your loan.
** Mortgage Rates are subject to change, loan amount and product restrictions and may not be available for your specific transaction at commitment or closing. Rates, and the margin for adjustable rate mortgages [if applicable], are subject to change without prior notice.
The rates and Annual Percentage Rate (APR) cited above may be only samples for the purpose of calculating payments and are based upon the following assumptions: minimum credit score of 740, 20% down payment (e.g. $20,000 down on a $100,000 purchase price), $1,950 in finance charges, and 30 days prepaid interest, 1 point, 30 day rate lock. The rates and APR will vary depending upon your unique credit history and the terms of your loan, e.g. the actual down payment percentages, points and fees for your transaction. Property taxes and homeowner's insurance are estimates and subject to change.
William Raveis Mortgage, LLC, NMLS ID 2630, 7 Trap Falls Road, Shelton, CT 06484
NH Mortgage Banker #11083-MB