Spring leasing season is in full swing across the Seacoast. Portsmouth continues to lead on price at $2,333/month on average, with Somersworth at $1,947, Dover at $1,819, and Rochester at $1,262. Dover's overall average sits below Somersworth largely because of the new inventory coming online: the Cochecho Waterfront Development (346 apartments by Cathartes), the Orpheum (140,000 SF mixed-use downtown), and the Railroad Apartments (88 HUD-rate units near the transit center) are all delivering a heavy mix of studios and 1BRs that pull the citywide average down. At the 2BR and 3BR level, Dover rents are competitive with or above the other Strafford County cities.
The table below breaks it all down from studios through 3-bedrooms. Rochester remains the most affordable entry point on the Seacoast, with studios averaging $953 and 1-bedrooms at $1,252. Dover's 3BR average of $3,211 tops all four cities, including Portsmouth at $2,789.
Rent by Unit Type & Active Supply
| City | Studio | 1-BR | 2-BR | 3-BR | Active Listings |
|---|---|---|---|---|---|
| Portsmouth | $1,884 | $2,327 | $2,503 | $2,789 | ~360 |
| Dover | $1,317 | $1,698 | $1,946 | $3,211 | ~434 |
| Somersworth | $1,515 | $1,949 | $1,980 | $2,995 | ~278 |
| Rochester | $953 | $1,252 | $1,734 | $2,943 | ~111 |
All rent and listing data sourced from Apartments.com (as of April 2026). Averages reflect currently listed units and may shift as inventory changes.
- ADU permits are accelerating under HB 577. Since last July, one detached or attached ADU is now allowed by right on any single-family lot in New Hampshire, no special exception or conditional use permit required. Municipalities can't restrict living space below 750 SF. If you own a single-family rental with unused yard or garage space, the economics of adding a 750-950 SF detached unit have improved significantly: no zoning board, no hearing, just a building permit. Worth penciling out at current 1BR rents ($1,252 in Rochester, $1,949 in Somersworth).
- Property tax rates are diverging across the Seacoast. Portsmouth sits at $11.51 per $1,000, Dover at $19.68, Somersworth at $18.70, and Rochester dropped to $14.85 after a 2024 revaluation (down from $25.74). For landlords running PITI calculations on acquisitions, the spread between Portsmouth's rate and Dover's is nearly $8 per thousand. On a $300K assessed property, that's roughly $2,400/year in additional tax burden in Dover vs. Portsmouth. Factor that into your pro forma before bidding.
- Opportunity Zones 2.0 is coming with fresh designations. The One Big Beautiful Bill Act refreshes the federal Opportunity Zone program every ten years, and the Governor is evaluating new census tract nominations in 2026. Rochester and Dover both have existing OZ tracts. If you hold appreciated assets and are looking to defer capital gains into Seacoast multifamily, the refreshed program also adds a Qualified Rural Opportunity Zone with a 30% basis boost and lower improvement thresholds for rural properties.