Great Island Realty

Great Island Realty A high-end boutique Real Estate Agency servicing the beautiful Seacoast New Hampshire & Coastal Maine. Let us help you with your next real estate transaction!

Built on professionalism, integrity, and long-standing client loyalty. With 30 experienced and local agents, Great Island Realty understands the local market because we love and live it! We know each of our clients is unique and we treat you that way! www.greatislandrealty.com

09/01/2026

✨ New Castle, NH ✨

350 Portsmouth Avenue - New Castle, NH | $4,200,000

Welcome to 350 Portsmouth Avenue, an exceptional waterfront residence offering a front row seat to one of the most captivating maritime settings on the New Hampshire Seacoast. With expansive water views of the Piscataqua River and Back Channel, this remarkable property captures everything that makes New Castle waterfront living so special. From magnificent ships and iconic Portsmouth tugboats to sailboats, fishing vessels and pleasure craft, the ever changing boat traffic provides a spectacular backdrop from morning until night. A private deep water dock makes this a dream for boating enthusiasts, offering direct access to Portsmouth Harbor, the Piscataqua River and the open Atlantic. Adding to the property’s unique appeal is deeded access to the Back Channel, creating a wonderful launching point for kayaks and paddleboards. Designed to embrace this extraordinary setting, the home features multiple waterfront decks for entertaining, outdoor dining or simply watching the river come alive. A walk-out lower level extends the living space outdoors, while the hot tub and sauna create a private waterfront retreat to enjoy throughout the seasons. Enjoy all the amenities that make New Castle one of the Seacoast’s most coveted communities, the nearby yacht clubs, Wentworth Marina, Wentworth by the Sea Country Club, Great Island Common, beaches and the historic charm of island living, all just minutes from downtown Portsmouth. And with New Castle’s exceptionally low property taxes, this is a rare opportunity to combine an extraordinary waterfront lifestyle with one of New Hampshire’s most desirable communities. Deep water boating out your front door. Kayaking and paddleboarding from your deeded Back Channel access. Incredible water views, spectacular boat traffic, waterfront decks, hot tub and sauna, all in the heart of New Castle. 350 Portsmouth Avenue isn’t simply a waterfront home, it’s a lifestyle defined by the water.

- 3 Bedrooms
- 5 Bathrooms
- 3,238 sqft

Listed by Janet Sylvester & Margaret Pesce | janet@greatislandrealty & margaret@greatislandrealty | 603-340-1042 & 603-234-9869

08/31/2026

✨ Portsmouth, NH ✨

217 Sage Lane, Unit 49 - Portsmouth, NH | $1,625,000

Welcome to 217 Sage Lane, a beautifully appointed residence in Parson Woods, one of Portsmouth’s most desirable newer communities. Set within a thoughtfully designed neighborhood surrounded by mature trees and protected conservation land, this exceptional home offers the comfort and quality of a private single family residence with the ease of condo style living. Parson Woods is conveniently located just minutes from downtown Portsmouth, I 95, shopping, dining, and the Seacoast’s beautiful beaches. Designed for today’s lifestyle, the home features approximately 2,400 sq. feet of finished living space, with an inviting open concept layout with four bedrooms, and three baths. A gracious kitchen with custom cabinetry, stone countertops, and an expansive island flows seamlessly into the dining and living areas, creating an ideal setting for both everyday living and entertaining. The living room is anchored by a gas fireplace, while beautiful hardwood flooring and thoughtfully selected finishes bring warmth and sophistication throughout. Upstairs, the spacious primary suite provides a private retreat, complete with a luxurious bath, generous walk in closet, and room for a sitting area. Additional bedrooms offer flexibility for family and guests. Beyond the front door, Parson Woods offers an especially appealing lifestyle. Professionally landscaped grounds, sidewalks, common open space, and extensive surrounding conservation land create a peaceful setting while keeping Portsmouth’s vibrant downtown just minutes away. The community was designed with walking and outdoor connectivity in mind, adding to its appeal for those who appreciate both convenience and nature. For those seeking newer construction, upscale finishes, low-maintenance living, and an exceptional Portsmouth location, 217 Sage Lane offers a rare combination of privacy, style, and convenience. This is Seacoast living at its most effortless. Close to everything, yet wonderfully removed from the everyday pace.

- 4 Bedrooms
- 3 Bathrooms
- 2,435 sqft

Listed by Janet Sylvester & Margaret Pesce | janet@greatislandrealty & margaret@greatislandrealty | 603-340-1042 & 603-234-9869

Portsmouth NH Real Estate Rye NH Homes New Castle Waterfront Homes Exeter NH Real Estate Dover Homes for Sale Kittery Maine Homes Hampton NH Real Estate Portsmouth Realtor Buyer’s Agent Listing Agent Luxury Homes Waterfront Homes Relocation Investment Properties

Great Island Realty
40 Pleasant Street - Portsmouth, NH
603-433-3350
[email protected]

A little Seacoast living could look like this. 🌊🏡
08/29/2026

A little Seacoast living could look like this. 🌊🏡

✨ Portsmouth, NH ✨217 Sage Lane, Unit 49 - Portsmouth, NH | $1,625,000Welcome to 217 Sage Lane, a beautifully appointed ...
08/28/2026

✨ Portsmouth, NH ✨

217 Sage Lane, Unit 49 - Portsmouth, NH | $1,625,000

Welcome to 217 Sage Lane, a beautifully appointed residence in Parson Woods, one of Portsmouth's most desirable newer communities. Set within a thoughtfully designed neighborhood surrounded by mature trees and protected conservation land, this exceptional home offers the comfort and quality of a private single family residence with the ease of condo style living. Parson Woods is conveniently located just minutes from downtown Portsmouth, I 95, shopping, dining, and the Seacoast's beautiful beaches. Designed for today's lifestyle, the home features approximately 2,400 sq. feet of finished living space, with an inviting open concept layout with four bedrooms, and three baths. A gracious kitchen with custom cabinetry, stone countertops, and an expansive island flows seamlessly into the dining and living areas, creating an ideal setting for both everyday living and entertaining. The living room is anchored by a gas fireplace, while beautiful hardwood flooring and thoughtfully selected finishes bring warmth and sophistication throughout. Upstairs, the spacious primary suite provides a private retreat, complete with a luxurious bath, generous walk in closet, and room for a sitting area. Additional bedrooms offer flexibility for family and guests. Beyond the front door, Parson Woods offers an especially appealing lifestyle. Professionally landscaped grounds, sidewalks, common open space, and extensive surrounding conservation land create a peaceful setting while keeping Portsmouth's vibrant downtown just minutes away. The community was designed with walking and outdoor connectivity in mind, adding to its appeal for those who appreciate both convenience and nature. For those seeking newer construction, upscale finishes, low-maintenance living, and an exceptional Portsmouth location, 217 Sage Lane offers a rare combination of privacy, style, and convenience. This is Seacoast living at its most effortless. Close to everything, yet wonderfully removed from the everyday pace.

- 4 Bedrooms
- 3 Bathrooms
- 2,435 sqft

Listed by Janet Sylvester & Margaret Pesce | janet@greatislandrealty & margaret@greatislandrealty | 603-340-1042 & 603-234-9869

Portsmouth NH Real Estate Rye NH Homes New Castle Waterfront Homes Exeter NH Real Estate Dover Homes for Sale Kittery Maine Homes Hampton NH Real Estate Portsmouth Realtor Buyer’s Agent Listing Agent Luxury Homes Waterfront Homes Relocation Investment Properties

Great Island Realty
40 Pleasant Street - Portsmouth, NH
603-433-3350
[email protected]

✨ New Castle, NH ✨350 Portsmouth Avenue - New Castle, NH | $4,200,000Welcome to 350 Portsmouth Avenue, an exceptional wa...
08/28/2026

✨ New Castle, NH ✨

350 Portsmouth Avenue - New Castle, NH | $4,200,000

Welcome to 350 Portsmouth Avenue, an exceptional waterfront residence offering a front row seat to one of the most captivating maritime settings on the New Hampshire Seacoast. With expansive water views of the Piscataqua River and Back Channel, this remarkable property captures everything that makes New Castle waterfront living so special. From magnificent ships and iconic Portsmouth tugboats to sailboats, fishing vessels and pleasure craft, the ever changing boat traffic provides a spectacular backdrop from morning until night. A private deep water dock makes this a dream for boating enthusiasts, offering direct access to Portsmouth Harbor, the Piscataqua River and the open Atlantic. Adding to the property's unique appeal is deeded access to the Back Channel, creating a wonderful launching point for kayaks and paddleboards. Designed to embrace this extraordinary setting, the home features multiple waterfront decks for entertaining, outdoor dining or simply watching the river come alive. A walk-out lower level extends the living space outdoors, while the hot tub and sauna create a private waterfront retreat to enjoy throughout the seasons. Enjoy all the amenities that make New Castle one of the Seacoast's most coveted communities, the nearby yacht clubs, Wentworth Marina, Wentworth by the Sea Country Club, Great Island Common, beaches and the historic charm of island living, all just minutes from downtown Portsmouth. And with New Castle's exceptionally low property taxes, this is a rare opportunity to combine an extraordinary waterfront lifestyle with one of New Hampshire's most desirable communities. Deep water boating out your front door. Kayaking and paddleboarding from your deeded Back Channel access. Incredible water views, spectacular boat traffic, waterfront decks, hot tub and sauna, all in the heart of New Castle. 350 Portsmouth Avenue isn't simply a waterfront home, it's a lifestyle defined by the water.

- 3 Bedrooms
- 5 Bathrooms
- 3,238 sqft

Listed by Janet Sylvester & Margaret Pesce | janet@greatislandrealty & margaret@greatislandrealty | 603-340-1042 & 603-234-9869

Portsmouth NH Real Estate Rye NH Homes New Castle Waterfront Homes Exeter NH Real Estate Dover Homes for Sale Kittery Maine Homes Hampton NH Real Estate Portsmouth Realtor Buyer’s Agent Listing Agent Luxury Homes Waterfront Homes Relocation Investment Properties

Great Island Realty
40 Pleasant Street - Portsmouth, NH
603-433-3350
[email protected]

✨ Greenland, NH ✨638 Post Road - Greenland, NH | $1,295,000Welcome home to this beautifully restored Antique Farmhouse i...
08/28/2026

✨ Greenland, NH ✨

638 Post Road - Greenland, NH | $1,295,000

Welcome home to this beautifully restored Antique Farmhouse in desirable Greenland! Blending timeless New England character with thoughtful modern updates, this exceptional 5+bedroom, 4-bath home has been completely renovated throughout and is truly special. Set on 1.38 picturesque acres, the property offers a wonderful sense of space and privacy while still being conveniently located to Portsmouth and all the Seacoast has to offer. Inside, beautiful wood floors and inviting living spaces create a warm, welcoming atmosphere. The stunning kitchen is a true showstopper featuring quality finishes, quartz counter tops, commercial 6 burner gas range with vented hood, stainless steel appliances, custom cabinets, exposed beams and a center island perfect for gathering with family and friends. The first floor offers the front to back living room and dining room area with fireplace, a spacious guest bedroom, renovated full bath and family room. There is a newly added mudroom with lots of custom cabinets, a new guest half bath plus a huge walk-in pantry offering exceptional storage and functionality. Upstairs you have 3 large guest bedrooms, an updated full guest bathroom, new laundry room plus the Primary Suite with private bathroom with its own separate staircase down to the 1st floor. There is also potential to expand in the full walk up attic. Other recent improvements include brand new Viessman HVAC system with central air, all new plumbing, all new electric, a brand new septic, and new water filtration system. Step outside onto the new expansive composite deck overlooking the gorgeous, level lot an ideal spot for morning coffee or simply relaxing and enjoying the pretty surroundings. The oversized attached 2-car garage has direct entry to the mudroom. With its blend of antique charm, modern amenities, beautiful craftsmanship, and an inviting floor plan, this lovingly restored farmhouse is ready to welcome its next owners and create years of wonderful memories.

- 5 Bedrooms
- 4 Bathrooms
- 3,140 sqft

Listed by Sue Salehkhou | 603-674-6283 | [email protected]

Portsmouth NH Real Estate Rye NH Homes New Castle Waterfront Homes Exeter NH Real Estate Dover Homes for Sale Kittery Maine Homes Hampton NH Real Estate Portsmouth Realtor Buyer’s Agent Listing Agent Luxury Homes Waterfront Homes Relocation Investment Properties

Great Island Realty
40 Pleasant Street - Portsmouth, NH
603-433-3350
[email protected]

✨ Rochester, NH ✨195 S Main Street - Rochester, NH | $424,900This is definitely one of the cutest houses in Rochester! P...
08/27/2026

✨ Rochester, NH ✨

195 S Main Street - Rochester, NH | $424,900

This is definitely one of the cutest houses in Rochester! Pulling up, the absolute perfect New England picture presents itself. From the welcoming flower lined porch, gorgeous barn, quaint old mailbox still in use, beautiful new paver patio (big enough for lounging AND parking) and lovely private yard you are completely charmed and you haven't even stepped inside yet. What a treat that is! First the kitchen- with the shining white granite counters, sparkling stainless appliances, cute island for entertaining it's hard to not imagine yourself there. Completely remodeled. Right off the living room is the most amazing bright sun room- light streams in all day. Meals can be shared in the dining room, and a very large living room for relaxing at the end of the day. The hardwoods are stunning, and they continue upstairs. The upstairs bathroom keeps that charm coming, as well as 3 bedrooms. Light, bright, and perfect. The full basement is walkout and just loaded with storage. The barn really completes the picture, offering even more storage as it features a walk up 2nd level. The location is fantastic- very close to Frisbee Hospital. Public transportation is there, and its just minutes from the highway where you can head to seaside Portsmouth in 30 minutes, up to the mountains within an hour. Local golf is offered at the Country club, and the eating out options are endless with all the investments Rochester continues to make downtown. This home is a stunner, and unlikely to last long. There are multiple modern charms too- smart light switches, ecobee smart thermostat, Yale code entry door. Perfect blend of old and modern! Welcome Home!

- 3 Bedrooms
- 1 Bathroom
- 1,244 sqft

Listed by Jackie Flanagan | [email protected] | 603-781-6541

Portsmouth NH Real Estate Rye NH Homes New Castle Waterfront Homes Exeter NH Real Estate Dover Homes for Sale Kittery Maine Homes Hampton NH Real Estate Portsmouth Realtor Buyer’s Agent Listing Agent Luxury Homes Waterfront Homes Relocation Investment Properties

Great Island Realty
40 Pleasant Street - Portsmouth, NH
603-433-3350
[email protected]

elling your home on the Seacoast NH & Maine starts long before the first showing.Before buyers ever walk through the doo...
08/26/2026

elling your home on the Seacoast NH & Maine starts long before the first showing.

Before buyers ever walk through the door, they’ve already seen the photos, compared the price, formed an opinion, and decided if your home is worth their time.

That’s why the strategy we make matters.

A strong launch gives your home the best chance to show up well, attract the right buyers, and build momentum before the sign is even in the yard.

If you’re thinking about selling your home in Portsmouth, NH, send us a message. We’d love to help you build the plan before we list.



Portsmouth NH Real Estate Rye NH Homes New Castle Waterfront Homes Exeter NH Real Estate Dover Homes for Sale Kittery Maine Homes Hampton NH Real Estate Portsmouth Realtor Buyer’s Agent Listing Agent Luxury Homes Waterfront Homes Relocation Investment Properties

Great Island Realty
40 Pleasant Street - Portsmouth, NH
603-433-3350
[email protected]

✨ Kittery, ME ✨10 Stimson Street - Kittery, ME | $1,295,000Welcome to 10 Stimson Street, where classic 1880 New England ...
08/25/2026

✨ Kittery, ME ✨

10 Stimson Street - Kittery, ME | $1,295,000

Welcome to 10 Stimson Street, where classic 1880 New England character meets an extensive collection of thoughtful, high-end improvements. This meticulously renovated Kittery home, set on a 1/4 acre lot, now offers 3 bedrooms and 2.5 bathrooms, including a newly created first-floor primary suite with a walk-in closet, laundry and a full private bath featuring a curbless tiled shower and radiant heat. At the heart of the home is a stunning new kitchen with solid maple cabinetry, brass hardware, black honed granite countertops, Bosch appliances, exposed brick chimney and an expanded opening to the dining room. The redesigned first floor also includes a welcoming tiled mudroom with radiant heat, a powder room, light-filled living and dining spaces, and refinished wood flooring. Upstairs are two bedrooms and a full bath with a tiled shower and classic clawfoot tub. Major improvements in 2025 and 2026 include a two-zone heat-pump system providing heating and cooling, owned solar panels, a new roof, 200-amp electrical service, an electric water heater and extensive insulation from attic to basement. Outside, new hardscaping including granite steps, brick walkway and a large patio beautifully complement the home and its gardens. The property also features a detached two-car garage with new overhead doors, as well as a separate, two-level barn currently used as a workshop and for storage. Ideally situated within walking distance between Kittery Foreside and vibrant Downtown Portsmouth, this exceptional home offers modern comfort, historic charm and convenient access to acclaimed restaurants, shopping, arts, culture and the very best of the Seacoast.

- 3 Bedrooms
- 3 Bathrooms
- 1,489 sqft

Listed by Emil Uliano | [email protected] | 603- 557-7329

Portsmouth NH Real Estate Rye NH Homes New Castle Waterfront Homes Exeter NH Real Estate Dover Homes for Sale Kittery Maine Homes Hampton NH Real Estate Portsmouth Realtor Buyer’s Agent Listing Agent Luxury Homes Waterfront Homes Relocation Investment Properties

Great Island Realty
40 Pleasant Street - Portsmouth, NH
603-433-3350
[email protected]

✨Rye, NH✨140 Pioneer Road - Rye, NH | $1,549,000Set on 1.77 acres in one of Rye's most desirable coastal neighborhoods, ...
08/24/2026

✨Rye, NH✨

140 Pioneer Road - Rye, NH | $1,549,000

Set on 1.77 acres in one of Rye's most desirable coastal neighborhoods, this spacious five-bedroom, three-bath home offers privacy, natural beauty and exceptional access to the Seacoast lifestyle. The attractive grounds are highlighted by beautiful granite outcroppings, while the setting provides sweeping views across the sixth fairway of the Wentworth by the Sea Country Club toward Witch Creek and Little Harbor. The first floor features a primary suite, living room, kitchen, dining room and spacious family room, providing comfortable and flexible everyday living. Upstairs are four additional bedrooms and a full bath. The home also includes a full basement with both interior and exterior access, along with an attached two-car garage. Move in and enjoy the property as it is, or bring your own ideas to thoughtfully update the home and make it your own. Located approximately one-third of a mile from a convenient spot to launch a kayak near Odiorne Point State Park, with Wallis Sands Beach, conservation trails, Portsmouth's restaurants and shopping, and other coastal attractions just minutes away. This distinctive property combines acreage, scenery, recreation and favorable Rye property taxes in a location that is increasingly difficult to find.

- 5 Bedrooms
- 3 Bathrooms
- 2,638 sqft

Listed by Emil Uliano | [email protected] | 603- 557-7329

Portsmouth NH Real Estate Rye NH Homes New Castle Waterfront Homes Exeter NH Real Estate Dover Homes for Sale Kittery Maine Homes Hampton NH Real Estate Portsmouth Realtor Buyer’s Agent Listing Agent Luxury Homes Waterfront Homes Relocation Investment Properties

Great Island Realty
40 Pleasant Street - Portsmouth, NH
603-433-3350
[email protected]

Address

40 Pleasant Street
Portsmouth, NH
03801

Opening Hours

Monday 8am - 10pm
Tuesday 8am - 10pm
Wednesday 8am - 10pm
Thursday 8am - 10pm
Friday 8am - 10pm
Saturday 8am - 10pm

Telephone

+16034333350

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