Janet Sylvester

Portsmouth NH

Great Island Realty LLC

89 Closed Sales

$120.5M Total Value

$354.2K - $6.3M Price Range

$1.4M Average Price

Prior five years

About Janet

As past President of a successful multi-million dollar Corporation and as Owner of a Real Estate Investment Company, Janet has the business background and negotiation skills necessary to ensure that our Clients have the best possible representation.

At Great Island Realty Janet and Margaret work as a Team… every Great Island Realty Client receives the benefits of both strong skill sets and of having two Brokers working constantly on their behalf. Their attention to detail, proactive approach to bringing deals together and the level of care they provide on behalf of each and every Client is unsurpassed.

As long time residents of New Castle, both Janet and Margaret understand what makes the Seacoast of New Hampshire special and unique.

Home Types: House, Townhouse, MultiFamily, Lot/Land, Condo, Manufactured, Commercial

Years of Experience: 17

Education: Arizona State University

Transaction History

1 Year
2 Year
5 Year

Seller Deals

Total Deals

Total Value

$29,790,000

Average Sale Price

$1,567,895

Price Range

$375K - $3.7M

Buyer Deals

Total Deals

Total Value

$4,595,000

Average Sale Price

$919,000

Price Range

$570K - $1.4M

1 Year View by Quarter

Seller Deals

Total Deals

Total Value

$40,848,000

Average Sale Price

$1,571,077

Price Range

$375K - $3.7M

Buyer Deals

Total Deals

Total Value

$10,179,200

Average Sale Price

$1,131,022

Price Range

$354K - $3.1M

2 Year View by Quarter

Seller Deals

Total Deals

Total Value

$72,712,900

Average Sale Price

$1,298,445

Price Range

$375K - $3.7M

Buyer Deals

Total Deals

Total Value

$47,835,819

Average Sale Price

$1,449,570

Price Range

$250K - $6.3M

5 Year View

Neighborhoods Janet is Experienced In

Janet's Active Listings

Co-Listing Agent

$1,395,000
- 2 Beds
- 2 Baths
- 1,800 Sq Ft
14 Colonial Ln

New Castle, NH
Charming Cape in the Heart of New CastleNestled on a quiet cul-de-sac in the heart of New Castle, this adorable Cape offers a rare opportunity to bring your vision to life. Surrounded by coastal charm and village tranquility, it’s the perfect canvas to create your dream home in one of the Seacoast’s most sought-after communities. Bring your imagination — and your New Castle dreams — to make

Janet Sylvester Great Island Realty LLC

Co-Listing Agent

$2,650,000
- 4 Beds
- 3 Baths
- 2,500 Sq Ft
15 Atkinson St

New Castle, NH
This is the New Castle home you’ve been waiting for.A complete renovation and truly a labor of love, this residence reflects an incredible design and impeccable attention to detail in every space. Perfectly positioned on one of the most sought-after streets in the heart of New Castle Village, you’re just steps to the water and will enjoy peek-a-boo water views from the private balcony off the

Janet Sylvester Great Island Realty LLC

$2,800,000
- 3 Beds
- 3 Baths
- 3,018 Sq Ft
28 Ocean St

New Castle, NH
Seaside Charm Awaits! Nestled within a picturesque seaside town, this classic Cape captures the essence of coastal New England living. Just steps from the ocean, it blends timeless charm with modern comfort — where the sound of the surf and the scent of salt air set the tone for everyday life.Inside, warm wood floors, sunlit rooms, and coastal-inspired finishes create an inviting atmosphere

Janet Sylvester Great Island Realty LLC

$1,200,000
- Land
- 0.27 Acre
- $4,444,444 per Acre
24 Seabreeze Ln

New Castle, NH
Buildable lot just steps to New Castle Beach! This is your chance to build your dream home with water views. Survey attached with buildable footprint.28 Ocean Road will need to sell prior to this parcel closing.Showings start for both properties on Friday the 17th by appointment.

Janet Sylvester Great Island Realty LLC

Agent License: New Hampshire 061241

Janet Sylvester

(603) 691-1694

Great Island Realty LLC

(603) 691-1694

Janet Sylvester

About Janet

Transaction History

Seller Deals

Buyer Deals

Production Over Time

1 Year View by Quarter

Seller Deals

Buyer Deals

Production Over Time

2 Year View by Quarter

Seller Deals

Buyer Deals

Production Over Time

5 Year View

Neighborhoods Janet is Experienced In

Janet's Listings and Deals

Janet's Active Listings