Rockingham County, NH Office buildings for sale

Updated: Dec 15, 2025

Historic Office Building

144 Washington Street, Portsmouth, NH 03801

$3,300,000

0.25 AC lot

1747 Federal‑style office property with original architectural details
0.25‑acre parcel at Hancock and Washington Streets in Portsmouth
Professional office configuration with a private third‑floor office
Views toward Strawberry Banke Historic Museum, Prescott Park, and the Piscataqua River
Off‑street parking with space identified for a garage or carriage house

View details

Updated: Mar 5

Updated Office Building with Suites

103 Stiles Road, Salem, NH 03079

$2,000,000

10,496 sqft

Strong investment opportunity with 50% leased first floor through 2031.
Vacant second floor offers flexible suite options ranging from 600 +/- SF to 5,200 +/- SF.
Prime location in Salem's sought‑after professional office park, Boston MSA.
Excellent accessibility: less than 0.2 miles from I‑93 (Exit 2) and 25 minutes from Manchester‑Boston Regional Airport.
Modern, renovated interior (2012) with new windows (2026), floor‑to‑ceiling glass conference rooms, and high‑end finishes.

View details

Commercial Land with Office Building

19 & 21 Main Street, Atkinson, NH 03811

$1,300,000

1,920 sqft

Three parcels include an existing office, paved parking, and two access points to Route 121/Main Street.

View details

Realmo Analytics Monitor Off-market properties and contact owners who are ready to sell. Many signals applied to make quality leads for you. Get Leads

Historic Portsmouth Office Building For Sale

144 Washington Street, Portsmouth, NH 03801

$3,300,000

3,034 sqft

Landmark Federal-style building in Portsmouth's historic Puddle Dock area.

View details

Office/Flex Building with Warehouse

6 Kitty Hawk Landing, Londonderry, NH 03053

Contact for pricing

33,110 sqft 15.00 AC lot

Professionally finished office space with a basement warehouse, loading docks, and drive-in access on a development-ready hilltop site.

View details

Two-Story Office Building with Clock Tower

15 Garden Road, Plaistow, NH 03865

Contact for pricing

6,876 sqft

Multi-unit office property includes basement rooms, attic storage, and ample parking.

View details

Bank and Office Building

40 Congress St, Portsmouth, NH 03801

$10,000,000

For-sale bank and office building located at 40 Congress Street in Portsmouth, NH.

View details

Multi-Wing Engineering Office Campus

135 Folly Mill Rd, Seabrook, NH 03874

Contact for pricing

Purpose-built office property with elevator service, dual electrical infrastructure, and a multi-wing configuration.

View details

Based on your search, we've compiled 72 Potential Opportunities for your consideration. Besides 8 Active listings in Rockingham County, NH, we suggest exploring several alternatives: similar 64 Off-Market properties to explore as potential leads

Off-Market Properties in Rockingham County, NH

Consider similar Off-Market properties in Rockingham County, NH. You may contact the owners directly to inquire about their potential intentions to sell. To help you make a strong first impression, we can assist by reaching out to these owners with compelling proposals created using our AI tool.

OFFICE BUILDING

73 Newton Rd, Plaistow, NH 03865-2424

Estimated value:

$1,790,000

17,200 sqft 1.84 AC lot

View details

OFFICE BUILDING

151 Epping Rd, Exeter, NH 03833-4522

Estimated value:

$350,000

2,200 sqft 0.29 AC lot

View details

OFFICE BUILDING

200 Main St, Salem, NH 03079-3149

Estimated value: by Request

7,234 sqft 1.81 AC lot

View details

OFFICE BUILDING

30 Main St, Salem, NH 03079-1920

Estimated value:

$290,000

1,072 sqft 0.22 AC lot

View details

OFFICE BUILDING

47 Newton Rd, Plaistow, NH 03865-2406

Estimated value:

$595,000

3,464 sqft 2.73 AC lot

View details

OFFICE BUILDING

19 Nimble Hl Rd, Newington, NH 03801-2727

Estimated value:

$2,125,000

14,730 sqft 1.60 AC lot

View details

OFFICE BUILDING

18 Brg St, Salem, NH 03079-3215

Estimated value:

$1,215,000

9,325 sqft 0.87 AC lot

View details

OFFICE BUILDING

53 Grn St, Portsmouth, NH 03801-3735

Estimated value:

$5,800,000

20,849 sqft 1.81 AC lot

View details

OFFICE BUILDING

5 Hampton Rd, Exeter, NH 03833-4807

Estimated value:

$610,000

2,649 sqft 0.69 AC lot

View details

OFFICE BUILDING

56 Main St, Salem, NH 03079-5914

Estimated value:

$750,000

4,338 sqft 0.42 AC lot

View details

OFFICE BUILDING

80 Plaistow Rd, Plaistow, NH 03865-2810

Estimated value:

$1,075,000

1,304 sqft 0.46 AC lot

View details

OFFICE BUILDING

1 Buttrick Rd, Londonderry, NH 03053-3307

Estimated value:

$11,800,000

5,516 sqft 0.96 AC lot

View details

OFFICE BUILDING

118 Sweet Hl Rd, Plaistow, NH 03865-2342

Estimated value:

$800,000

1,598 sqft 2.98 AC lot

View details

OFFICE BUILDING

12 Little Riv Rd, Exeter, NH 03833-1505

Estimated value:

$1,250,000

4,640 sqft 4.39 AC lot

View details

OFFICE BUILDING

23 Birch St, Derry, NH 03038-2119

Estimated value:

$335,000

4,480 sqft 0.19 AC lot

View details

OFFICE BUILDING

7 Winnicut Rd, Greenland, NH 03840-2607

Estimated value:

$280,000

1,831 sqft 1.20 AC lot

View details

Rockingham County, NH Office Buildings Market Trends and Statistics

Explore 72 office buildings for sale in Rockingham County, NH, showcased through 8 active listings on our real estate platform. These investment opportunities span a total of 55,436 square feet of properties for sale, with an estimated market value of $19,900,000.

Sale prices for commercial office buildings in Rockingham County, NH start at $1,300,000, averaging $3,980,000, and reaching up to $10,000,000 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you stay ahead with the latest data and market trends.

Featured Rockingham County Real Estate Agencies

Realmo connects you with licensed Rockingham County CRE brokers providing property specifications, local market pricing, and commercial transaction underwriting support.

The Merrill Bartlett Group

153 Main Street, PO Box 727 Kingston, NH 03848

Phone: 16036425171

www.merrillbartlettgroup.com

Jalbert Realty Inc.

566 Washington Road Rye, NH 03870

Phone: 16039648028

tateandfoss.com