
Great Island Realty
Real Estate Brokerage
Portsmouth, NH same city
- Luxury Homes
- Waterfront & Lake Homes
Keller Williams Coastal and Lakes and Mountains Realty is a brokerage listed in Portsmouth, New Hampshire. It describes itself as a place where entrepreneurs thrive, and its focus tags include waterfront and lake homes as well as mountain and cabin homes.
Ask how much experience that person has with coastal, lakefront or mountain properties, and what they check for in docks, septic systems, private roads and seasonal access. Second-home buyers can ask about rental rules and maintenance planning.
Where Entrepreneurs Thrive!— How Keller Williams Coastal and Lakes & Mountains Realty describes the business
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.
Portsmouth, New Hampshire
No published office hours. If this is your listing, you can send your hours.
The typical home in Portsmouth was valued at about $797,662 in August 2026, according to the Zillow Home Value Index. 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. Typical asking rent is about $3,068 a month (+0.1% in a year).
Source: Zillow Home Value Index and Observed Rent Index, August 2026. More on the Portsmouth market
| Name | Keller Williams Coastal and Lakes & Mountains Realty |
|---|---|
| Profile type | Real Estate Brokerage |
| Primary market | Portsmouth, New Hampshire |
| County | Rockingham County |
| Focus areas | Waterfront & Lake Homes, Mountain & Cabin Homes |
| Social media followers | 4,511 |
| License regulator | New Hampshire Real Estate Commission |
| Time zone | Eastern Time |
| Last reviewed | October 13, 2026 |
| 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 |
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