Julie Davis
Realtor · Keller Williams Coastal and Lakes & Mountains Realty
Portsmouth, NH same city
- Waterfront & Lake Homes
- Mountain & Cabin Homes
Great Island Realty
Photo: Portsmouth, NH by Quintin Soloviev, CC BY 4.0 via Wikimedia Commons
Real Estate Brokerage in Portsmouth
About Great Island Realty
Great Island Realty is a real estate agency in Portsmouth, New Hampshire. In its own description, the firm calls itself a high-end boutique agency serving Seacoast New Hampshire and coastal Maine, so its work extends across the state line and centers on coastal communities on both sides of the Piscataqua River.
With luxury and waterfront homes in focus, buyers can ask Great Island Realty about flood zones, shoreline rules, docks, older historic homes and which agents handle Maine transactions. Sellers of higher-end properties may want to discuss marketing to buyers from Boston and beyond.
A high-end boutique Real Estate Agency servicing the beautiful Seacoast New Hampshire & Coastal Maine.— How Great Island Realty describes the business
What the data says about Portsmouth
Many listings nearby
23 other listed real estate professionals work within 25 miles of Portsmouth, 6 of them in Portsmouth itself. The map and the list further down sort them by distance.
Location
Portsmouth, New Hampshire
Local time
9:28 AMPortsmouth · Eastern Time · Wednesday, October 14
No published office hours. If this is your listing, you can send your hours.
Home values in Portsmouth
Typical home$798K
1-year+3.4%
5-year+34.8%
Typical rent$3,068
As of August 2026, Zillow’s home value index puts a typical Portsmouth home at roughly $797,662. Over twelve months the typical value rose 3.4%, against a 2.9% rise for New Hampshire as a whole. Over five years the change is +34.8%. Portsmouth sits 54% above the New Hampshire typical value of $516,306. Renters pay around $3,068 per month for a typical unit, +0.1% versus last year.
Source: Zillow Home Value Index and Observed Rent Index, August 2026. More on the Portsmouth market
Profile details
| Name | Great Island Realty |
|---|---|
| Profile type | Real Estate Brokerage |
| Primary market | Portsmouth, New Hampshire |
| County | Rockingham County |
| Focus areas | Luxury Homes, Waterfront & Lake Homes |
| Social media followers | 2,206 |
| License regulator | New Hampshire Real Estate Commission |
| Time zone | Eastern Time |
| Last reviewed | October 13, 2026 |
Communities around Portsmouth
| Community | Distance | Typical home | 1 year | Listed |
|---|---|---|---|---|
| Rye, NH | 4.4 mi | $1,299,336 | +5.7% | 1 |
| Dover, NH | 10 mi | $546,302 | +1.6% | 2 |
| Exeter, NH | 12 mi | $616,112 | +3.5% | 2 |
| North Berwick, ME | 16 mi | $493,618 | +2.7% | 1 |
| Amesbury, MA | 17 mi | $628,338 | +2.5% | 1 |
| Wells, ME | 19 mi | $592,452 | +2.6% | 1 |
| Rochester, NH | 19 mi | $410,388 | +3.7% | 1 |
| Newburyport, MA | 19 mi | $938,245 | +4.3% | 4 |
Questions about Great Island Realty
Where is Great Island Realty located?
Great Island Realty is listed in Portsmouth, New Hampshire (Rockingham County).
Which nearby communities have listed professionals?
Rye (4.4 mi, 1 listing), Dover (10 mi, 1 listing), Exeter (12 mi, 2 listings), and North Berwick (16 mi, 1 listing).
What does a typical home cost in Portsmouth?
About $797,662 in August 2026 (Zillow Home Value Index), +3.4% versus a year earlier; typical rent is $3,068 a month.
What does Great Island Realty focus on?
The profile highlights luxury homes and waterfront & lake homes.
Is this your profile?
Send a correction, add office hours or ask us to remove this page. Messages go to the Realtor US editorial team, not to Great Island Realty.
Other realtors near Portsmouth
The 9 closest listings, sorted by distance. Every town's full list is on its city page.
Keller Williams Coastal and Lakes & Mountains Realty
Real Estate Brokerage
Portsmouth, NH same city
- Waterfront & Lake Homes
- Mountain & Cabin Homes
Nina Fee Realty Team
Real Estate Team
Portsmouth, NH same city
Red Post Realty
Real Estate Brokerage
Portsmouth, NH same city
Tanya Roux
Real Estate Agent · Real Estate Agent in NH and MA
Portsmouth, NH same city
Your Home Team
Real Estate Team · Keller Williams Coastal Realty
Portsmouth, NH same city
- Waterfront & Lake Homes
Tate & Foss Sotheby's International Realty
Real Estate Brokerage
Rye, NH 4.4 mi
- Luxury Homes
- Waterfront & Lake Homes
Nichole Fecteau
Realtor
Dover, NH 10 mi
Nancy Kingston Realty
Real Estate Brokerage
Exeter, NH 12 mi